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Kabushiki Kaisha Hitachi Seisakusho

USPTO Granted Patents = 23

Trademarks = 122

Forward Citations = 167

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50 inventors (with patents filed for the assignee):

Toshio Takayama (4 out of 34 patents)

Takato Ogiwara (3 out of 16 patents)

Takuya Usui (2 out of 18 patents)

4. Naganori Koshimizu (2 out of 29 patents)

5. Masaaki Uchiyama (2 out of 47 patents)

6. Junichi Ikeda (2 out of 41 patents)

7. Makoto Nishimura (2 out of 2 patents)

8. Mitsuhiro Endo (2 out of 22 patents)

9. Shuzo Watanabe (2 out of 7 patents)

10. Jun Watanabe (2 out of 77 patents)

11. Nobuyuki Ichimaru (1 out of 47 patents)

12. Masaru Umeda (1 out of 38 patents)

13. Masao Kikuchi (1 out of 39 patents)

14. Migaku Takahashi (1 out of 37 patents)

15. Hirotaka Oikawa (1 out of 16 patents)

23 patents: Sort by Forward Citations

1. 8141227 - Assembly of sheet materials, tube assembly, drawing method and tools for drawing (2012-03-27),

2. 7591636 - Negative pressure supply apparatus (2009-09-22),

3. 7530252 - Method and apparatus for working tube (2009-05-12),

4. 7455153 - Disc brake (2008-11-25),

5. RE40573 - Master cylinder (2008-11-17),

6. 7299905 - Electric disc brake apparatus (2007-11-27),

7. 7287759 - Stabilizer device (2007-10-30),

8. 7252031 - Cylinder apparatus (2007-08-07),

9. 7219781 - Electromagnetic suspension system (2007-05-22),

10. 7201568 - Scroll fluid machine (2007-04-10),

11. 7040468 - Hydraulic shock absorber (2006-05-09),

12. 7032982 - Master cylinder apparatus (2006-04-25),

13. 7003954 - Master cylinder apparatus (2006-02-28),

14. 6981577 - Controlling damping force shock absorber (2006-01-03),

15. 6978710 - Pneumatic booster (2005-12-27),

Kabushiki Kaisha Hitachi Seisakusho, commonly referred to as Hitachi, is a Japanese multinational conglomerate company specializing in information technology, electronics, power systems, social infrastructure, and industrial equipment. With a strong commitment to innovation, Hitachi aims to contribute to society through its advanced technologies, products, and services. For more information, please visit their official website.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

23 Patents

#1,091 in Tokyo

#2,645 in Japan

#26,820 in the World

Kabushiki Kaisha Hitachi Seisakusho

Forward Citations = 167

50 inventors:

Toshio Takayama (4 out of 34 patents)

Takato Ogiwara (3 out of 16 patents)

Takuya Usui (2 out of 18 patents)

4. Naganori Koshimizu (2 out of 29 patents)

5. Masaaki Uchiyama (2 out of 47 patents)

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