Hitachi Communication System, Inc.

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USPTO Granted Patents = 5

Forward Citations = 73

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18 inventors (with patents filed for the assignee):

Kenji Takeda (1 out of 34 patents)

Yoshihiro Ashi (1 out of 89 patents)

Akihiko Takase (1 out of 63 patents)

4. Yukio Nakano (1 out of 84 patents)

5. Mitsutaka Hikita (1 out of 32 patents)

6. Nobuhiro Matsudaira (1 out of 18 patents)

7. Toru Saito (1 out of 10 patents)

8. Atsushi Sumioka (1 out of 11 patents)

9. Atsushi Murata (1 out of 4 patents)

10. Toyoji Tabuchi (1 out of 12 patents)

11. Kazuhito Kurosawa (1 out of 7 patents)

12. Tuneo Kinoshita (1 out of 1 patent)

13. Kazuhiko Maruyama (1 out of 1 patent)

14. Yosinori Tuzita (1 out of 1 patent)

15. Tomoyuki Yukawa (1 out of 1 patent)

5 patents: Sort by Forward Citations

1. 5371755 - Optical transmission module (1994-12-06),

2. 5351238 - Method of controlling a frame phase of a time-division switch and frame (1994-09-27),

3. 5267245 - ISDN communication control unit and control method (1993-11-30),

4. 5010269 - SAW resonator having a broad bandwidth (1991-04-23),

5. 4760344 - Phase shift keying signal demodulation method and apparatus (1988-07-26),

Company Overview

Hitachi Communication Systems, Inc. is a leading provider of innovative communication solutions for businesses across various industries. With a focus on cutting-edge technology and exceptional customer service, Hitachi Communication Systems offers a wide range of products and services to help companies improve their communication networks and efficiency.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

5 Patents

#118 in Yokohama

#6,656 in Japan

Yokohama, Japan