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For the Inventor, By the Inventor

Yokohama, Japan

Piolax, Inc.


USPTO Granted Patents = 311


Forward Citations = 3,083

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194 inventors (with patents filed for the assignee):

goldMedal Hisashi Nakasone (26 out of 26 patents)

silverMedal Shigeo Okada (21 out of 22 patents)

bronzeMedal Oomi Arisaka (17 out of 18 patents)

4.  Kenta Mihara (14 out of 14 patents)

5.  Kouichi Kato (12 out of 18 patents)

6.  Ryou Aoki (11 out of 11 patents)

7.  Hiroshi Nakazato (11 out of 11 patents)

8.  Shinichi Matsuo (11 out of 11 patents)

9.  Toshihiro Shimizu (9 out of 18 patents)

10.  Nobuya Shinozaki (9 out of 9 patents)

11.  Satoshi Yamada (8 out of 36 patents)

12.  Yasuki Wakabayashi (7 out of 7 patents)

13.  Naoki Morita (7 out of 7 patents)

14.  Ryu Hattori (6 out of 6 patents)

15.  Kosei Yamaguchi (6 out of 6 patents)


Core Competencies:
Lock Devices
Valve Devices
Fuel Tank Technology
Damper Devices
Fasteners
Hose Clamps
Opening/Closing Mechanisms
Holder Structures
Rotary Mechanisms
Stopper Devices
Light-Emitting Tools
Quick Connectors

311 patents:

1. 12509933 - Damper device (2025-12-30),
2. 12485829 - Opening/closing body lock device (2025-12-02),
3. 12480341 - Lock device (2025-11-25),
4. 12473998 - Holder for long member (2025-11-18),
5. 12427856 - Valve device for fuel tank (2025-09-30),
6. 12371932 - Rotation member connecting structure and method for manufacturing said structure (2025-07-29),
7. 12352097 - Stopper device (2025-07-08),
8. 12276300 - Fastener (2025-04-14),
9. 12276145 - Lock device for opening and closing body (2025-04-14),
10. 12264694 - Fastener (2025-04-01),
11. 12241572 - Holder for long member (2025-03-04),
12. 12234676 - Locking device (2025-02-25),
13. 12203301 - Lock lever and opening/closing device (2025-01-21),
14. 12203297 - Unlocking device (2025-01-21),
15. 12179575 - Valve device (2024-12-31),
Piolax, Inc. is a leading global manufacturer of fastening solutions and engineered components for the automotive industry. With a focus on innovation and quality, Piolax specializes in a wide range of products including automotive fasteners, clips, and custom designed components. With over 70 years of experience, Piolax is committed to delivering reliable and durable solutions to their customers worldwide.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

311 Patents

#8 in Yokohama

#511 in Japan

#2,796 in the World

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Yokohama, Japan

Piolax, Inc.

Forward Citations = 3,083

194 inventors:

goldMedal Hisashi Nakasone (26 out of 26 patents)

silverMedal Shigeo Okada (21 out of 22 patents)

bronzeMedal Oomi Arisaka (17 out of 18 patents)

4.  Kenta Mihara (14 out of 14 patents)

5.  Kouichi Kato (12 out of 18 patents)

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