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  1. Home
  2. Building materials, supplies and fixtures manufacturers
  3. 日本ピット 大分本社・東京・大阪・福岡
Building materials, supplies and fixtures manufacturers
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日本ピット 大分本社・東京・大阪・福岡

EstablishmentJune 1968
capital1365Ten thousand
number of employees99
addressOita/Oita-shi/21, 3-chome, Oita Distribution Business District
phone097-592-4141
  • Official site
last updated:Jul 01, 2026
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  • Company information
  • Products/Services(44)
  • catalog(30)
  • news(42)

日本ピット Company Profile

We offer a variety of living environment products, including wiring and piping, drainage pits, waterproof boards (water-stopping prevention equipment), and grating.

Nihon Pit was established in 1968 as Japan's first independent pit specialty manufacturer, standardizing and mass-producing traditional manhole covers. Since then, we have developed many products, including general wiring and drainage pits for construction, trench ducts and OA floors for office automation, and drainage troughs, among others. Moving forward, we will continue to pursue a wide variety of specialized pits (manhole covers) that transcend the boundaries of architecture, civil engineering, and facilities, always aiming to create products that are ahead of their time.

Business Activities

Flood prevention measures for tsunamis, storm surges, floods, and guerrilla rainstorms; HACCP support drainage systems, various types of grating; development, manufacturing, construction, sales, and maintenance of wiring pit hardware.

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Products/Services (44)

You can see the entire inside of the side ditch! Cleaning becomes easier! Duster Pit NP type. product image
You can see the entire inside of the side ditch! Cleaning becomes easier! Duster Pit NP type.
Duster Pit NP Type JP-DP-NP product image
Duster Pit NP Type JP-DP-NP
Waterproof board/Water stop board/Moisture-proof board product image
Waterproof board/Water stop board/Moisture-proof board
HACCP Support Drainage System and Drain Pit product image
HACCP Support Drainage System and Drain Pit

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catalog(30)

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Duster Pit NP Type JP-DP-NP (Flyer)

Duster Pit NP Type JP-DP-NP (Flyer)

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Duster Pit NP Type JP-DP-NP

Duster Pit NP Type JP-DP-NP

PRODUCT
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Duster Pit SV Type JP-DP-SV (Flyer)

Duster Pit SV Type JP-DP-SV (Flyer)

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How to introduce waterproof boards

How to introduce waterproof boards

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news(42)

防水板動画公開バナー550.png

[Video Release] We have released a video on YouTube showing the installation, storage methods, and performance tests of the waterproof board.

  • COMPANY

Introduction of a Public Video on the Installation, Storage Methods, and Performance Testing of Waterproof Boards To help you better understand the correct handling methods and product performance of "waterproof boards," we have released a video on YouTube. This video includes smooth procedures for installation and storage using actual products, as well as footage of performance testing under assumed flooding conditions. The content allows you to confirm the safety of the product and the image after installation, so please take a look. ■ Video Link https://youtube.com/playlist?list=PLc0ljXfq9NJ4&si=QD0tckLZrS_MUoK0 ■ Types of Videos - Detachable JP-WP-1D - Detachable JP-WP-1DC - Swing JP-WP-SW - Slide JP-WP-SL - Sheet JP-WP-SR - Electric Lift JP-WP-AU - Roll-up JP-WP-WU ■ Video Overview - Features - Installation Methods - Storage Methods - Performance Testing

Aug 24, 2026

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[Video Release] We have published a video introducing the Duster Pit SV type product and its experiments.

  • PRODUCT

Introduction of the Duster Pit SV Type Public Videos We have released short videos showcasing the product introduction and experiments of the "Duster Pit SV Type (JP-DP-SV)." To communicate the functions and features of our products more clearly, we have produced two new videos and made them available on YouTube. They are in a "short video" format that can be easily viewed from smartphones. ■ Introduction of the Released Videos Product Introduction and Comparison Experiment: A compact video summarizing the main features and benefits of the product, along with a comparison experiment with conventional types. Trolley Running Experiment: A video of an experiment where a 500kg trolley was run 10,000 times.

Jul 29, 2026

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Notice of Summer Vacation 2026

  • COMPANY

Thank you very much for your continued patronage. We sincerely apologize for the inconvenience, but we will be closed for summer vacation from Saturday, August 8, 2026, to Sunday, August 16, 2026. We appreciate your understanding. During the closure, if you have any questions, please feel free to contact us through the "Contact Form" on our website. We will resume regular business operations on Monday, August 17. Any inquiries or communications received during the summer vacation will be addressed sequentially after the holiday period.

Jul 13, 2026

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Detailed information

Company name 日本ピット 大分本社・東京・大阪・福岡
number of employees99
Contact addresspostalcode 870-0319 Oita/ Oita-shi/ 21, 3-chome, Oita Distribution Business DistrictView on map TEL:097-592-4141 FAX:097-547-8575
Industry Building materials, supplies and fixtures manufacturers
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