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Hitachi Process Computer Engineering, Inc.

USPTO Granted Patents = 23

% Expired Patents = 8.7

Forward Citations = 644

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94 inventors (with patents filed for the assignee):

Tomoaki Nakamura (5 out of 17 patents)

Sadao Mizokawa (4 out of 14 patents)

Hisayuki Maruyama (4 out of 5 patents)

4. Masato Satake (4 out of 4 patents)

5. Masayuki Sakata (3 out of 53 patents)

6. Shinichi Komura (3 out of 135 patents)

7. Tetsuya Nagata (3 out of 109 patents)

8. Hideo Sato (3 out of 158 patents)

9. Yoshiharu Nagae (3 out of 58 patents)

10. Yoshiaki Takahashi (3 out of 43 patents)

11. Yuji Mori (3 out of 34 patents)

12. Minoru Hoshino (3 out of 14 patents)

13. Ichirou Katsuyama (3 out of 7 patents)

14. Akira Arimoto (3 out of 87 patents)

15. Akio Hayasaka (3 out of 12 patents)

23 patents: Sort by Forward Citations

1. 6975648 - Network system and communication band control method thereof (2005-12-13),

2. 6879358 - LCD and projection type display using same (2005-04-12),

3. 6034749 - Light insensitive type active matrix with P and N regions connected to a (2000-03-07),

4. 5901281 - Processing unit for a computer and a computer system incorporating such (1999-05-04),

5. 5890220 - Address conversion apparatus accessible to both I/O devices and (1999-03-30),

6. 5787464 - Computer system including a dual memory configuration which supports (1998-07-28),

7. 5740424 - Information processing system and method using time-varying database (1998-04-14),

8. 5706422 - Method of locating fault of communication system (1998-01-06),

9. 5651112 - Information processing system having performance measurement capabilities (1997-07-22),

10. 5585821 - Apparatus and method for screen display (1996-12-17),

11. 5497374 - Data transmission method and system thereof (1996-03-05),

12. 5461501 - Liquid crystal substrate having 3 metal layers with slits offset to (1995-10-24),

13. 5432715 - Computer system and monitoring method (1995-07-11),

14. 5426638 - Transmission method and system thereof (1995-06-20),

15. 5418404 - Data processing device and plug-in package (1995-05-23),

Hitachi Process Computer Engineering, Inc. is a leading global provider of control solutions for various industries. We specialize in developing advanced process computer systems that enable efficient and reliable operations. Our state-of-the-art technologies and expertise help our clients optimize their industrial processes, improve productivity, and enhance overall performance. For more information about our offerings and capabilities, please visit our website.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

23 Patents

#5 in Hitachi

#2,701 in Japan

#27,619 in the World

Hitachi Process Computer Engineering, Inc.

Forward Citations = 644

94 inventors:

Tomoaki Nakamura (5 out of 17 patents)

Sadao Mizokawa (4 out of 14 patents)

Hisayuki Maruyama (4 out of 5 patents)

4. Masato Satake (4 out of 4 patents)

5. Masayuki Sakata (3 out of 53 patents)

Please report any incorrect information to [email protected]

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