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Narashino, Japan

Hitachi Keiyo Engineering Co., Ltd.

USPTO Granted Patents = 34

Forward Citations = 1,087

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99 inventors (with patents filed for the assignee):

Shinichi Sarugaku (7 out of 8 patents)

Yukihiro Seki (4 out of 20 patents)

Takashi Tsunehiro (4 out of 61 patents)

4. Kunihiro Katayama (4 out of 107 patents)

5. Jun Kitahara (4 out of 37 patents)

6. Hajime Yamagami (4 out of 28 patents)

7. Kenichi Kaki (4 out of 38 patents)

8. Takashi Totsuka (4 out of 64 patents)

9. Ryuichi Hattori (4 out of 22 patents)

10. Tsunehiro Tobita (4 out of 27 patents)

11. Takeshi Wada (4 out of 42 patents)

12. Manabu Saito (4 out of 7 patents)

13. Yosio Takaya (4 out of 6 patents)

14. Takao Okubo (4 out of 12 patents)

15. Masamichi Kishi (4 out of 8 patents)

34 patents: Sort by Forward Citations

1. 7115039 - Contents distribution system for simulation ride system, distribution apparatus for ride contents administration center, simulation ride control apparatus and computer software (2006-10-03),

2. D429401 - Kiosk (2000-08-08),

3. 6078520 - Flash memory control method and information processing system therewith (2000-06-20),

4. 5973964 - Flash memory control method and information processing system therewith (1999-10-26),

5. 5949663 - Inverter apparatus capable of readily modification of the specification (1999-09-07),

6. 5862083 - Information processing system (1999-01-19),

7. 5557774 - Method for making test environmental programs (1996-09-17),

8. 5530673 - Flash memory control method and information processing system therewith (1996-06-25),

9. 5481664 - Method of controlling information in multimedia system (1996-01-02),

10. 5307501 - Insuring data security and requiring only the minimum necessary input (1994-04-26),

11. 5274750 - Robot teaching apparatus and method with skill level storage (1993-12-28),

12. 5262954 - Automated manufacture line (1993-11-16),

13. 5255347 - Neural network with learning function (1993-10-19),

14. 5200678 - Motor driving control apparatus (1993-04-06),

15. 5195179 - Coordinate input apparatus (1993-03-16),

Hitachi Keiyo Engineering Co., Ltd. is a Japanese company specializing in engineering, procurement, and construction (EPC) services for the chemical industry. With its headquarters in Tokyo, the company offers comprehensive solutions for various chemical plants, including petrochemicals, oil refining, and gas processing. Hitachi Keiyo Engineering is committed to providing high-quality service, innovative designs, and sustainable solutions to meet the complex needs of its clients. For more information, please visit their website.

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

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USPTO Data Jan 1 1976 - Dec 23 2025

34 Patents

#2 in Narashino

#2,116 in Japan

#19,043 in the World

Narashino, Japan

Hitachi Keiyo Engineering Co., Ltd.

Forward Citations = 1,087

99 inventors:

Shinichi Sarugaku (7 out of 8 patents)

Yukihiro Seki (4 out of 20 patents)

Takashi Tsunehiro (4 out of 61 patents)

4. Kunihiro Katayama (4 out of 107 patents)

5. Jun Kitahara (4 out of 37 patents)

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