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Arai Seisakusho Co., Ltd

USPTO Granted Patents = 10

EPO Patents = 2

Trademarks = 2

Forward Citations = 77

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31 inventors (with patents filed for the assignee):

Hiroshi Kawasaki (1 out of 27 patents)

Shigeru Maruyama (1 out of 11 patents)

Kazuyoshi Horiba (1 out of 1 patent)

4. Kazuhiko Yonezawa (1 out of 1 patent)

5. Shinichi Sumimoto (1 out of 1 patent)

6. Seiji Miyazawa (1 out of 1 patent)

7. Takao Suzuki (1 out of 15 patents)

8. Sinichi Tamura (1 out of 1 patent)

9. Masaki Sohda (1 out of 1 patent)

10. Tetsuya Ishikawa (1 out of 1 patent)

11. Takashi Umeki (1 out of 1 patent)

12. Yuya Suzuki (1 out of 3 patents)

13. Hiyoshi Ishikawa (1 out of 5 patents)

14. Shigeki Eguchi (1 out of 1 patent)

15. Haruki Nobori (1 out of 1 patent)

10 patents: Sort by Forward Citations

1. 11530748 - Sealing apparatus (2022-12-20),

2. 8282107 - Oil seal for reciprocation motion (2012-10-09),

3. 8191900 - Oil seal (2012-06-05),

4. 7424817 - Method of working recessed portion in headrest stay and press apparatus for working recessed portion in headrest stay (2008-09-16),

5. 6075210 - Polymer insulator (2000-06-13),

6. 5782730 - Pressure roller (1998-07-21),

7. 5574254 - Water-proof sealing structure for an electric junction box (1996-11-12),

8. 5396921 - Fluid-flow controlling apparatus (1995-03-14),

9. 4970901 - Method for examining quality of adhesion in vulcanized rubber-adhesively (1990-11-20),

10. 4747603 - Oil seal comprising lip seal with thermal expansion controlled (1988-05-31),

Arai Seisakusho Co., Ltd is a leading manufacturer of high-quality industrial machinery and equipment based in Japan. With over 50 years of experience, the company specializes in designing and producing precision parts for a wide range of industries including automotive, aerospace, and electronics. Arai Seisakusho is known for its commitment to innovation, quality, and customer satisfaction.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

10 Patents

#1,690 in Tokyo

#4,283 in Japan

#54,238 in the World

Arai Seisakusho Co., Ltd

Forward Citations = 77

31 inventors:

Hiroshi Kawasaki (1 out of 27 patents)

Shigeru Maruyama (1 out of 11 patents)

Kazuyoshi Horiba (1 out of 1 patent)

4. Kazuhiko Yonezawa (1 out of 1 patent)

5. Shinichi Sumimoto (1 out of 1 patent)

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