Structural Design Office

向陽技研 本社

EstablishmentJuly 20, 1961
capital6000Ten thousand
number of employees85
addressOsaka/Nishi-ku, Sakai-shi/1214 Kusa, Japan
phone072-275-1300
last updated：
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向陽技研 List of Products and Services

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Numerous manufacturing achievements in sheet-type products: KOYO's mass production technology.

The technological capability at the mass production stage is directly linked to the speed of product market entry and cost performance!

We would like to introduce our mass production technology. At KOYO, we utilize advanced manufacturing technologies such as progressive stamping and single-stroke stamping to establish a high-quality and efficient mass production system. We flexibly respond to customer requests, from small lots to mass production. Please feel free to contact us when you need our services. 【KOYO's Technical Capabilities】 ■ Planning and Development Technology ■ Prototyping and Design Technology ■ Mold Technology ■ Mass Production Technology ■ Evaluation ■ Global Delivery *For more details, please refer to the related links or feel free to contact us.

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Numerous manufacturing achievements in sheet-type products: KOYO's mold technology.

We pursue the optimization of quality and efficiency, supporting the preparation for mass production of products!

We would like to introduce our mold technology. With years of experience and advanced technical skills, KOYO responds to a wide range of needs from precision mold manufacturing to maintenance, particularly in resin molds. In each process of mold manufacturing, we pursue the optimization of quality and efficiency to support the preparation for mass production of products. 【KOYO's Technical Capabilities】 ■ Planning and Development Technology ■ Prototyping and Design Technology ■ Mold Technology ■ Mass Production Technology ■ Evaluation ■ Global Delivery *For more details, please refer to the related links or feel free to contact us.

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Numerous manufacturing achievements in sheet products: KOYO's planning and development technology.

We have interpreted the market from our unique perspective and have created numerous innovative original products!

We would like to introduce you to the planning and development technology of Koyo Giken. Our strength lies not only in developing products but also in responding to our customers' needs and conducting mechanism development tailored to specifications. Furthermore, from the initial stages of ideas to concrete product design, we closely collaborate with our customers to realize the value demanded by the market. 【Koyo's Technical Capabilities】 ■ Planning and Development Technology ■ Prototyping and Design Technology ■ Mold Technology ■ Mass Production Technology ■ Evaluation ■ Global Delivery *For more details, please refer to the related links or feel free to contact us.

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Numerous manufacturing achievements in sheet materials: KOYO's prototyping and design technology.

Transforming ideas into reality! Achieving cost-effective product design.

At KOYO, we utilize cutting-edge CAD/CAM technology to create precise drawings and generate 3D data. We turn product concepts into reality and achieve cost-effective product design through optimal parts selection. Please feel free to contact us when you need assistance. 【KOYO's Technical Capabilities】 ■ Planning and Development Technology ■ Prototyping and Design Technology ■ Mold Technology ■ Mass Production Technology ■ Evaluation ■ Global Delivery *For more details, please refer to the related links or feel free to contact us.

  • Drawing, tracing, CAD

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KOYO Online Shop

We can also accommodate custom orders, OEM, and mold manufacturing! We have a variety of products listed.

We would like to introduce KOYO Online Shop by Koyo Giken Co., Ltd. While the selection is smaller than the combinations of products listed in our catalog and on our website, items not found on the related links page can be addressed through inquiries on our website or by phone. Additionally, we can accommodate custom orders, OEM, and mold production. Please feel free to contact us when you need assistance. 【Featured Products (Excerpt)】 ■ Gas Lift Table ■ Flap Table ■ Height Adjustable Folding Table with 4 Legs ■ Wireless Charger *For more details, please refer to the related links or feel free to contact us.

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KOYO's technological capabilities

Years of experience and advanced technical skills! We respond flexibly to customer requests.

We would like to introduce our technological capabilities. With a unique perspective, we have interpreted the market and created numerous innovative original products. Our strength lies not only in developing products but also in responding to customer needs and conducting mechanism development tailored to specifications. Furthermore, from the initial stages of ideas to concrete product design, we closely collaborate with our customers to realize the value demanded by the market. 【Technological Capabilities】 ■ Prototyping and Design Technology ■ Planning and Development Technology ■ Molding Technology ■ Mass Production Technology ■ Evaluation ■ Global Delivery *For more details, please refer to the related links or feel free to contact us.

  • Manufacturing Technology

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Glow-in-the-dark cup holder "M-LC01"

Shining! Product available for use in dark places - Specification sheet provided.

【Features】 ■ Can set drinks even in dark places ■ Ideal for theater seats and more *For more details, please refer to the visual sheet and catalog available for download in PDF. Feel free to contact us. Here is our online shop. https://koyoeng.base.shop/categories/5262606

  • Office furniture

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USB Charger (4-port type) 'M-E524'

Double the input ports! 2×2 USB charger specification sheet available.

【Features】 ■ Can charge 4 devices from a single outlet ■ Compatible with USB type-A *For more details, please refer to the visual sheet and catalog available for download as a PDF. Feel free to contact us. Here is our online shop. https://koyoeng.base.shop/categories/5262606

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USB Charger (2-Port Type) 'M-E527'

Double charging! 2-port USB charger specification sheet available.

【Features】 ■ Compact and simple USB charger ■ Can charge two devices in a small space ■ Compatible with USB type-A *For more details, please refer to the visual sheet and catalog available for download in PDF. Feel free to contact us. Our online shop is here. https://koyoeng.base.shop/categories/5262606

  • Office furniture

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USB Charger "M-E503"

Unobtrusive! Compact USB charger specification sheet available.

【Features】 ■ Simple design ■ Ideal for charging smartphones and tablets *For more details, please refer to the visual sheet and catalog available for download in PDF. Feel free to contact us. Here is our online shop. https://koyoeng.base.shop/categories/5262606

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Embedded Non-Contact Charging Pad 'M-E506'

Invisible! Embedded charger specification document presentation.

【Features】 ■ Non-contact design that can be built into the tabletop ■ Ideal for furniture in wet areas since it is not exposed on the surface ■ Only devices with the Qi mark can be charged *For more details, please refer to the visual sheet and catalog available for download in PDF. Feel free to contact us. Our online shop is here. https://koyoeng.base.shop/categories/5262606

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Non-contact charging pad 'M-E504'

Just place it! USB-free charging pad specification sheet available.

【Features】 ■ Non-slip silicone design ■ The outer ring turns blue while charging ■ Only devices with the Qi mark can be charged *For more details, please refer to the visual sheet and catalog available for download in PDF. Feel free to contact us. Our online shop is here. https://koyoeng.base.shop/categories/5262606

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Pop-up USB port 'M-UF2'

With USB port! A pop-up product that reveals the connector when you press the center. Specification sheet available.

【Features】 ■ Ideal for simultaneous charging of smartphones and tablets ■ Compatible with USB type-A ■ Two ports available *For more details, please refer to the visual sheet and catalog available for PDF download. Feel free to contact us. Here is our online shop: https://koyoeng.base.shop/categories/5262606

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Bluetooth-compatible audio system 'M-UF5'

With music function! Music player operation and rechargeable product specification presentation.

【Features】 ■ With speaker ■ Compatible with USB type-A ■ Two ports available *For more details, please refer to the visual sheet and catalog available for PDF download. Feel free to contact us. Our online shop can be found here: https://koyoeng.base.shop/categories/5262606

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Table lifting legs "KVS"

Slim! Even thinner lifting legs than the KV series. Passed a load capacity test of 400kg. Catalog available.

【Features】 ■ Height adjustable by lifting the tabletop ■ Can be raised or lowered by 200mm ■ Ideal for office or study desks *For more details, please check the catalog available for PDF download. Feel free to contact us. Our online shop can be found here. https://koyoeng.base.shop/categories/5262603

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Table lifting legs "KV"

Stability! Wood grain adjustable legs, cleared 900kg load test, catalog available.

【Features】 ■ Height adjustable by lifting the top board ■ Can be raised or lowered by 300mm ■ Ideal for welfare facilities and similar settings *For more details, please view the catalog available for PDF download. Feel free to contact us. Here is our online shop. https://koyoeng.base.shop/categories/5262603

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Table lifting legs "KW"

With lever! A product that allows height adjustment with lever operation, cleared a load capacity test of 300kg, catalog available.

【Features】 ■ Easily adjustable height with lever operation ■ 300mm up and down capability ■ The table can be secured with an adjuster by pressing the pedal *For more details, please refer to the catalog available for download in PDF. Feel free to contact us. Here is our online shop. https://koyoeng.base.shop/categories/5262603

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Table lifting legs "KVI"

Simple! One-legged adjustable leg type, passes 900kg load test, catalog available.

【Features】 ■ Height adjustable by lifting the tabletop ■ Can be raised or lowered by 300mm ■ Equipped with a lifting lock function *For more details, please refer to the catalog available for download in PDF. Feel free to contact us. Here is our online shop. https://koyoeng.base.shop/categories/5262603

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Table lift legs "KVSI"

Super slim! The slimmest lifting legs, cleared a 400kg load test, specifications available.

【Features】 ■ Height adjustable by lifting the tabletop ■ Can be raised or lowered by 200mm ■ Slimmer than conventional lifting legs *For more details, please refer to the visual sheet and catalog available for download in PDF. Feel free to contact us. Our online shop is here. https://koyoeng.base.shop/categories/5262603

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Rotating platform for chairs and single sofas 'SWL AR'

Auto return! A product that automatically returns to its original position after rotation. Passed 15,000 durability tests. Specification sheet available.

【Features】 ■ Ideal for chairs up to 800mm wide ■ Auto-return function returns to the original position ■ Eliminates the hassle of aligning, maintaining a neat appearance at all times *For more details, please refer to the visual sheet and catalog available for download in PDF. Feel free to contact us. Here is our online shop. https://koyoeng.base.shop/categories/5262598

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Rotating board for chairs and single sofas 'SWL COMBO'

Free and easy! A product that allows for rotation locking and free rotation with lever operation, passing a durability test of 15,000 cycles. Specification sheet available.

【Features】 ■ Ideal for chairs up to 600mm wide ■ Push the lever to engage rotation lock ■ Pull the lever to allow free rotation *For more details, please refer to the visual sheet and catalog available for download in PDF. Feel free to contact us. Here is our online shop. https://koyoeng.base.shop/categories/5262598

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Rotating plate for chairs and single-seater sofas 'SWL LEVER STOP'

Lock! A product that can be locked in rotation with lever operation. Passed durability tests of 15,000 cycles. Specification sheet available.

【Features】 ■ Ideal for chairs up to 600mm wide ■ Unichrome plating ■ Fixed with lever operation *For more details, please refer to the visual sheet and catalog available for download in PDF. Feel free to contact us. Here is our online shop. https://koyoeng.base.shop/categories/5262598

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Chair rotating plate 'SWIVEL 185 PITCH'

The strongest! The most durable product among rotating plates, cleared 15,000 durability tests, specifications available.

【Features】 ■ Ideal for chairs up to 800mm wide ■ Unichrome plating ■ Most durable rotating plate *For more details, please refer to the visual sheet and catalog available for download in PDF. Feel free to contact us. Our online shop is here. https://koyoeng.base.shop/categories/5262598

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Swivel light rotating chair

Color variation! The only product with a different color among the rotating boards. Passed a durability test of 10,000 cycles. Specification sheet available.

【Features】 ■ Ideal for chairs up to 200mm wide ■ Chrome plating *For more details, please refer to the visual sheet and catalog available for PDF download. Feel free to contact us. Here is our online shop. https://koyoeng.base.shop/categories/5262598

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Swivel plate for chairs and single sofas 'SWIVEL RR'

Stability! Added reinforcement plates to the standard, further increasing load capacity. Passed 15,000 durability tests. Specification sheet available.

【Features】 ■ Ideal for chairs up to 600mm wide ■ Unichrome plating ■ Provides stability with reinforcement plates *For more details, please refer to the visual sheet and catalog available for download as PDF. Feel free to contact us. Here is our online shop. https://koyoeng.base.shop/categories/5262598

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Swivel base for chairs and single sofas 'SWIVEL STD'

Standard! The most standard product among rotating plates. Passed 10,000 durability tests. Specification sheet available.

【Features】 ■ Ideal for chairs up to 500mm wide ■ Uni-chrome plating *For more details, please refer to the visual sheet and catalog available for download in PDF. Feel free to contact us. Our online shop is here. https://koyoeng.base.shop/categories/5262598

  • Office furniture

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Packaging Size Reduction Hinge "OLH"

Size reduction! Products that can reduce packaging size - One Lock - Catalog available.

【Features】 ■ Reduces packaging and transportation costs ■ One-lock type (bend while pressing the lock key) ■ Reduces packaging size *For more details, please view the catalog by downloading the PDF. Feel free to contact us. Here is our online shop. https://koyoeng.base.shop/categories/5262597

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Backrest gear 'KX' for chairs, sofas, and dining chairs.

With lever! The only chair with lever operation. Passed 10,000 cycle repeat tests. Specification sheet available.

【Features】 ■ Movement similar to a reclining seat in a car ■ Angle adjustable in 14 steps with a 6° pitch ■ Top load capacity with a chair gear *For more details, please refer to the visual sheet and catalog available for download in PDF. Feel free to contact us. Here is our online shop. https://koyoeng.base.shop/categories/5262597

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Chair backrest, headrest gear 'KS-AMG'

KS series strongest! High load capacity product, cleared 10,000 cycle repetitive testing, catalog available.

【Features】 ■ High power type ■ Adjustable with a 6° pitch in 14 steps *For more details, please refer to the catalog available for download as a PDF. Feel free to contact us. Here is our online shop. https://koyoeng.base.shop/categories/5262597

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Chair backrest gear "KS-12URG" "KS-16URG"

Cubic! Square-shaped product, cleared 10,000 cycle repetitive testing, catalog available.

【Features】 ■ Square pipe type ■ Adjustable with a 6° pitch in 14 steps *For more details, please view the catalog by downloading the PDF. Feel free to contact us. Our online shop is here. https://koyoeng.base.shop/categories/5262597

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Chair backrest, headrest gear 'KS-12(16)HG'

Increased strength! A more stable product. Passed 10,000 cycles of repetitive testing. Specification sheet available.

【Features】 ■Strengthened type ■Adjustable with a 6° pitch in 14 stages *For more details, please refer to the visual sheet and catalog available for PDF download. Feel free to contact us. Our online shop can be found here: https://koyoeng.base.shop/categories/5262597

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Chair backrest, headrest gear 'KS-12SE(LG)'

The most standard! A stable product that has passed 10,000 cycle repeat tests. Catalog available.

【Features】 ■Standard type ■Adjustable with a 6° pitch and 14 levels *For more details, please refer to the catalog available for download in PDF. Feel free to contact us. Here is our online shop. https://koyoeng.base.shop/categories/5262597

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Chair backrest, headrest gear 'FR-L'

Super multi-stage! A product that can be locked at your preferred angle. Passed 10,000 cycle repeat tests. Specification sheet available.

【Features】 ■ Adjustable angle in a small space ■ Fine angle adjustment with 42 levels at a 2° pitch *For more details, please refer to the visual sheet and catalog available for download in PDF. Feel free to contact us. Here is our online shop. https://koyoeng.base.shop/categories/5262597

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Chair backrest, headrest gear 'FR-H'

Super multi-segment! A product that can be locked at your preferred angle (enhanced load capacity) - cleared 10,000 cycle repetitive testing - specification sheet available.

【Features】 ■ Adjustable angle in a small space ■ Fine angle adjustment with 42 steps at a 2° pitch *For more details, please refer to the visual sheet and catalog available for download as PDF. Feel free to contact us. Here is our online shop. https://koyoeng.base.shop/categories/5262597

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Chair backrest, headrest gear 'KDR-L'

Compact! A product that can be locked at your preferred angle. Passed 10,000 cycle durability tests. Specification sheet available.

【Features】 ■ Compact design of KDR-H ■ Angle adjustment possible in a small space ■ Usable with high-back products *For more details, please refer to the visual sheet and catalog available for download in PDF. Feel free to contact us. Here is our online shop. https://koyoeng.base.shop/categories/5262597

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Chair backrest, headrest gear 'KDR-H'

High intensity! A product that can be locked at your preferred angle. Passed 10,000 cycles of repetitive testing. Specification sheet available.

【Features】 ■ High load capacity of 330N·m ■ Angle adjustment possible in a small space ■ Usable for high-back products *For more details, please refer to the visual sheet and catalog available for download in PDF. Feel free to contact us. Here is our online shop. https://koyoeng.base.shop/categories/5262597

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Sofa and chair backrest gear "BRM"

Position change! A product that allows you to move the backrest of sofas and chairs back and forth. Two selectable positions. Catalog available.

【Features】 ■ Two positions can be selected: front and back ■ Adjustable seat depth ■ Movement range can be selected from 180mm or 300mm *For more details, please refer to the catalog available for download in PDF. Feel free to contact us. Here is our online shop. https://koyoeng.base.shop/categories/5262592

  • Office furniture

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Sofa headrest, armrest gear 'FH'

Free stop! A product that allows angle adjustment at your preferred position. Passed over 10,000 durability tests. Specification sheet available.

【Features】 ■ Adjustable over a wide range from 55° to 305° ■ No clicking sound, so it won't be bothersome ■ Stepless adjustment available *For more details, please refer to the visual sheet and catalog available for download in PDF. Feel free to contact us. Here is our online shop. https://koyoeng.base.shop/categories/5262592

  • Office furniture

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Sofa backrest, armrest gear 'IS450'

High durability! A product with even higher strength than the conventional 250 series. Passed over 10,000 durability tests. Catalog available.

【Features】 ■ Simple and slim design ■ Fine adjustments possible with a 6° pitch ■ 1.8 times higher strength than the 250 series *For more details, please refer to the catalog available for download in PDF. Feel free to contact us. Here is our online shop. https://koyoeng.base.shop/categories/5262592

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Sofa headrest, armrest gear 'IS250'

The simplest! Standard product that has passed over 10,000 durability tests. Catalog available.

【Features】 ■ Simple and slim design ■ Fine adjustments possible with a 6° pitch ■ 1.8 times higher strength than the 250 series *For more details, please refer to the catalog available for download in PDF. Feel free to contact us. Here is our online shop. https://koyoeng.base.shop/categories/5262592

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Sofa headrest gear "IS150T"

Zero sag! With stretch function, length 50mm, catalog available.

【Features】 ■Prevention of sofa sagging ■Fine adjustments possible with a 6° pitch ■Strength of 150N·m *For more details, please refer to the catalog available for PDF download. Feel free to contact us. Here is our online shop. https://koyoeng.base.shop/categories/5297970

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Sofa headrest gear 'IS150LT'

Zero sag over a wider area! With long stretch functionality, length 80mm, catalog available.

【Features】 ■Prevention of sofa sagging ■30mm longer stroke than standard size ■6° pitch, strength of 150N·m *For more details, please refer to the catalog available for download in PDF. Feel free to contact us. Our online shop is here. https://koyoeng.base.shop/categories/5262592

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Sofa backrest, armrest gear 'LS300-MP'

Powerful! A product with stability and peace of mind. 50% increased durability compared to the 200 series. Catalog available.

【Features】 ■ Removable to reduce shipping costs ■ Quiet click sound due to 2° pitch ■ Fine angle adjustment possible with 2° pitch *For more details, please refer to the catalog available for download in PDF. Feel free to contact us. Here is our online shop. https://koyoeng.base.shop/categories/5262592

  • Office furniture

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Sofa headrest, armrest gear 'LS200-MP'

Super multi-stage! A product with enhanced durability of the rotation axis, capable of withstanding 50,000 cycles under no load. Catalog available.

【Features】 ■ Increased durability compared to the 100 series ■ Quiet click sound due to 2° pitch ■ Fine angle adjustments possible with 2° pitch *For more details, please refer to the catalog available for download in PDF. Feel free to contact us. Our online shop is here. https://koyoeng.base.shop/categories/5262592

  • Office furniture

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Sofa headrest gear 'LS100-MP'

Compact! A product that allows fine adjustments with a 3° pitch, 30% smaller than the 200 series. Catalog available.

【Features】 ■ Ideal for use in narrow spaces ■ Quiet click sound due to 3° pitch ■ Fine angle adjustments possible with 3° pitch *For more details, please refer to the catalog available for download in PDF. Feel free to contact us. Our online shop is here. https://koyoeng.base.shop/categories/5262592

  • Office furniture

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