Two worlds of blue and white: Featuring images of 3D booth designs by designers. We will be exhibiting at the 9th Asia Furniture Fair 2024. Event period: November 20, 2024 - November 22, 2024. Venue: Tokyo Big Sight (Tokyo International Exhibition Center), East Exhibition Hall 5.

Unbreakable! No rattling! Our flagship product has passed over 10,000 durability tests. Specifications available upon request.

【Features】 ■ Prevents product failure due to overload ■ Does not make a clicking sound, so it won't be bothersome ■ Stepless adjustment 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/5262592

• Office furniture

Sound Zero! A product that allows smooth angle adjustments, has passed over 10,000 durability tests, and specifications are available.

【Features】 ■ Slim finish ■ No annoying sounds as it doesn't make a clattering noise ■ Fine angle adjustments possible with 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/5262592

• Office furniture

Easily lock in your preferred position! Products with free lock feature, 50,000 cycles of no-load durability, catalog available.

【Features】 ■ Usable even when deformed ■ Angle adjustment possible at your preferred position with free lock ■ Fine angle adjustment available 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

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

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

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

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

• Office furniture

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

• Office furniture

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

• Office furniture

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

• Office furniture

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

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

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

• Office furniture

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

• Office furniture

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

• Office furniture

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

• Office furniture

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

• Office furniture

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

• Office furniture

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

• Office furniture

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

• Office furniture

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

• Office furniture

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

• Office furniture

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

• Office furniture

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

• Office furniture

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

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

• Office furniture

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

• Office furniture

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

• Office furniture

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

• Office furniture

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

• Office furniture

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

• Office furniture

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

• Office furniture

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

• Office furniture

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

• Office furniture

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

• Office furniture

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

• Office furniture

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

• Office furniture

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

• Office furniture

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

• Office furniture

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

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

• Office furniture

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

【Exhibition Information】 Exhibition Name: Food Processing Technology Exhibition 2025 Date and Time: November 14, 2025 (Friday) 10:30 AM - 4:30 PM *Free entry and exit, pre-registration required Location: Osaka Industry Creation Center - We will showcase technical products using the factory deodorant "Deofure." - We will display the tofu defoamer "Tofu Up." - Other fragrance technology products will also be exhibited. *For more details, please refer to the materials.

Protech Engineering will exhibit at the "Landslide Disaster Prevention Technology Forum '25 in Toyama," organized by the Japan Society for Slope Disaster Prevention Technology, scheduled to be held on Thursday, October 9, 2025. On that day, we will provide detailed explanations of the following disaster prevention products using models, panels, and various materials. ◆Exhibited Products◆ - Pile-type debris flow and driftwood countermeasures for non-flowing streams / Urban Guard (model display) Additionally, our representative will conduct a technical presentation, so we kindly invite you to attend.

Protech Engineering (Booth Number: 240) will be exhibiting at the "Hokkaido Construction Development Comprehensive Exhibition 2025," scheduled to be held on October 8 (Wednesday) and 9 (Thursday), 2025. On the day of the event, we will provide detailed explanations of the following disaster prevention products using models, panels, and various materials. ◆ Main Exhibited Products ◆ - Energy-absorbing rockfall protection fence / ARC Fence (model display) - Landslide debris protection fence / Slope Guard Fence Type LE (model display) - Pile-type (pile foundation) debris flow and driftwood countermeasure for non-flowing streams / Urban Guard - Avalanche prevention piles / Tri-Pile - Avalanche protection fence / Slope Guard Fence Type LS - High energy-absorbing rockfall protection fence / Macro Fence In addition, we will have a variety of materials on disaster prevention products developed independently by Protech Engineering, so we kindly invite you to visit our booth.

Profect Co., Ltd. will hold a seminar on October 3rd (Friday) themed around the IT Implementation Subsidy 2025 and our developed and sold production management system "TED." This year's IT Implementation Subsidy has seen a significant decrease in the acceptance rate compared to previous years. Many companies are struggling with the situation of having wanted to implement IT tools but being rejected. In this seminar, we will explain why the acceptance rate has dropped, the background behind it, and the key points for being accepted. Additionally, we will introduce our initiatives that have achieved a 100% acceptance rate so far this year and the reasons why our production management system "TED," registered as an IT tool, is chosen. To accommodate busy schedules, this seminar will be held in a hybrid format, allowing for both in-person attendance and online participation via Zoom. Please choose your preferred method of participation according to your convenience. If you are currently considering applying for the IT Implementation Subsidy or are interested in production management, we encourage you to join us. We sincerely look forward to your application.

An international forum aimed at promoting the circular economy and closed-loop economy, "Closed Loop Recycle Forum 2025 (hereinafter referred to as CLRF2025)," will be held for two days from November 25 (Tuesday) to 26 (Wednesday) at The Oriental Terrace in Chuo Ward, Hamamatsu City, Shizuoka Prefecture. In Europe, closed-loop recycling practices are already advancing. We have organized this international forum as a platform to connect the forefront of Europe with Japan's challenges, striving for a future that balances economic viability and environmental sustainability. A total of 12 speakers, including Chairman Kajiwara of the Waste and 3R Research Foundation and Director Kaneko of the Ministry of the Environment's Container and Packaging Recycling Division, along with leading recycling operators and researchers from Japan and Europe, will present advanced examples of the circular economy and closed-loop economy. Furthermore, through discussions on the feasibility and challenges of implementation in Japan, we will explore hints for sustainable business models that companies and local governments should aim for.