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Hitachi Chubu Software, Ltd.

USPTO Granted Patents = 13

Forward Citations = 605

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34 inventors (with patents filed for the assignee):

Kazuo Takaragi (5 out of 67 patents)

Hiroshi Matsumoto (5 out of 24 patents)

Ichiro Ote (3 out of 9 patents)

4. Jun Kitahara (2 out of 37 patents)

5. Yasuko Fukuzawa (2 out of 22 patents)

6. Tomohisa Kohiyama (2 out of 21 patents)

7. Seiichi Susaki (2 out of 16 patents)

8. Tsutomu Nakamura (2 out of 30 patents)

9. Yuji Miyagawa (2 out of 6 patents)

10. Sunao Hirata (2 out of 3 patents)

11. Seiji Oyama (2 out of 2 patents)

12. Takumi Soen (2 out of 2 patents)

13. Yukihiro Seki (1 out of 20 patents)

14. Ryuichi Hattori (1 out of 22 patents)

15. Tsunehiro Tobita (1 out of 27 patents)

13 patents: Sort by Forward Citations

1. 6105138 - Method and apparatus for controlling electric source in information (2000-08-15),

2. 5781434 - Control system for communication apparatus (1998-07-14),

3. 5708827 - Spread sheet calculation method and apparatus by extracting an area to (1998-01-13),

4. 5583985 - Graphic display processing apparatus for improving speed and efficiency (1996-12-10),

5. 5572701 - Bus snoop method and apparatus for computer system having CPU with cache (1996-11-05),

6. 5465299 - Electronic document processing system and method of forming digital (1995-11-07),

7. 5379423 - Information life cycle processor and information organizing method using (1995-01-03),

8. 5353403 - Graphic display processing apparatus and method for improving the speed (1994-10-04),

9. 5351294 - Limited broadcast system (1994-09-27),

10. 5309516 - Group cipher communication method and group cipher communication system (1994-05-03),

11. 5222139 - Cryptographic method and apparatus (1993-06-22),

12. 5218638 - Encipher method and decipher method (1993-06-08),

13. 4984195 - Extended bus controller (1991-01-08),

Hitachi Chubu Software, Ltd. is a software development company based in Japan. Specializing in providing cutting-edge solutions for various industries, including automotive, healthcare, and finance. The company offers a wide range of services, from software development and consulting to IT infrastructure management and support. With a strong focus on innovation and customer satisfaction, Hitachi Chubu Software, Ltd. strives to deliver high-quality and reliable solutions to meet the evolving needs of its clients.

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USPTO Data Jan 1 1976 - Sep 22 2026

13 Patents

#81 in Aichi

#3,741 in Japan

#44,921 in the World

Hitachi Chubu Software, Ltd.

Forward Citations = 605

34 inventors:

Kazuo Takaragi (5 out of 67 patents)

Hiroshi Matsumoto (5 out of 24 patents)

Ichiro Ote (3 out of 9 patents)

4. Jun Kitahara (2 out of 37 patents)

5. Yasuko Fukuzawa (2 out of 22 patents)

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