Forward Citations = 27

Loading Chart...

14 inventors (with patents filed for the assignee):

Toshihiko Shimizu (1 out of 69 patents)

Yoshikuni Matsunaga (1 out of 28 patents)

Tomio Furuya (1 out of 21 patents)

4. Nobuhiro Matsudaira (1 out of 18 patents)

5. Koichi Matsushita (1 out of 3 patents)

6. Kenji Kawakita (1 out of 20 patents)

7. Masashi Hiraiwa (1 out of 10 patents)

8. Satoru Inazawa (1 out of 2 patents)

9. Tatsuo Mochinaga (1 out of 5 patents)

10. Masahiro Kumon (1 out of 4 patents)

11. Takuo Tsuzuki (1 out of 7 patents)

12. Masayuki Hashimura (1 out of 3 patents)

13. Mitsuhiro Kotake (1 out of 3 patents)

14. Yoshiharu Kondoh (1 out of 3 patents)

3 patents: Sort by Forward Citations

1. 7049892 - High frequency power amplifier circuit device (2006-05-23),

2. 6021134 - Cell/packet assembly and disassembly apparatus and network system (2000-02-01),

3. 5563940 - System for connecting an incoming call to a selected one of a number of (1996-10-08),

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

3 Patents

#313 in Kanagawa

#8,932 in Japan

Kanagawa, Japan

Hitachi Communications Systems, Inc.

Forward Citations = 27

14 inventors:

Toshihiko Shimizu (1 out of 69 patents)

Yoshikuni Matsunaga (1 out of 28 patents)

Tomio Furuya (1 out of 21 patents)

4. Nobuhiro Matsudaira (1 out of 18 patents)

5. Koichi Matsushita (1 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hitachi Communications Systems, Inc.. Retrieved from https://idiyas.com/company/hitachi-communications-systems

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]