Forward Citations = 89

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12 inventors (with patents filed for the assignee):

Fujio Wakui (2 out of 6 patents)

Hisashi Matsumura (1 out of 8 patents)

Tomoo Aoyama (1 out of 9 patents)

4. Hiroshi Murayama (1 out of 11 patents)

5. Fumiaki Matsuura (1 out of 3 patents)

6. Masahiko Tagami (1 out of 1 patent)

7. Masahide Kouhei (1 out of 1 patent)

8. Kazuhiro Ushijima (1 out of 2 patents)

9. Tsutomu Koita (1 out of 1 patent)

10. Hiromichi Kainoh (1 out of 3 patents)

11. Takaaki Nishiyama (1 out of 3 patents)

12. Seiji Nagai (1 out of 2 patents)

4 patents: Sort by Forward Citations

1. 5355461 - Method of and apparatus for selecting an origin address for use in (1994-10-11),

2. 5351040 - Control system for configuring ring LAN with improved reconfiguration (1994-09-27),

3. 4783783 - Data processing system having pipeline arithmetic/logic units (1988-11-08),

4. 4780811 - Vector processing apparatus providing vector and scalar processor (1988-10-25),

Company Overview

Hitachi Computer Eng. Co., Ltd. is a leading provider of high-quality computer and IT solutions. With a strong focus on innovation and technology, the company offers a wide range of products and services to meet the ever-changing needs of its customers. From hardware to software, Hitachi Computer Eng. Co., Ltd. is dedicated to delivering reliable and efficient solutions to help businesses achieve their goals.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

4 Patents

#3 in Hadano

#7,588 in Japan

Hadano, Japan

Hitachi Computer Eng. Co., Ltd.

Forward Citations = 89

12 inventors:

Fujio Wakui (2 out of 6 patents)

Hisashi Matsumura (1 out of 8 patents)

Tomoo Aoyama (1 out of 9 patents)

4. Hiroshi Murayama (1 out of 11 patents)

5. Fumiaki Matsuura (1 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hitachi Computer Eng. Co., Ltd.. Retrieved from https://idiyas.com/company/hitachi-computer-eng-company

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]