For the Inventor, By the Inventor

Enter assignee name

Maspro Denkoh Co., Ltd.

Calculating rank

USPTO Granted Patents = 20

% Expired Patents = 25.0

Forward Citations = 142

Loading Chart...

Loading Chart...

19 inventors (with patents filed for the assignee):

Hiroshi Matsubara (4 out of 10 patents)

Michinari Hayashi (3 out of 3 patents)

Toshihiro Sugiura (2 out of 12 patents)

4. Takashi Tamezane (2 out of 2 patents)

5. Yoshirou Hoshino (2 out of 2 patents)

6. Masatoshi Sugita (1 out of 3 patents)

7. Yoshiro Hoshino (1 out of 2 patents)

8. Hiroyuki Mizutani (1 out of 4 patents)

9. Masahiro Otsu (1 out of 4 patents)

10. Akira Hayakawa (1 out of 3 patents)

11. Wataru Kodama (1 out of 1 patent)

12. Yoshiji Hattori (1 out of 1 patent)

13. Junichi Shibata (1 out of 1 patent)

14. Takehito Kuno (1 out of 2 patents)

15. Nobutaka Inoue (1 out of 2 patents)

20 patents: Sort by Forward Citations

1. D551172 - High-frequency signal distributor (2007-09-18),

2. 7261594 - Coaxial cable connector and electronic device case (2007-08-28),

3. 7039360 - External noise intrusion prevention device, signal amplifier, protector and antenna plug (2006-05-02),

4. D519463 - Coaxial connector for high frequency (2006-04-25),

5. 6809609 - Device for preventing mixing of extrinsic noise and protector (2004-10-26),

6. D491149 - High-frequency signal distributor (2004-06-09),

7. 6498309 - Circuit board and manufacturing method thereof (2002-12-24),

8. 6402550 - Coaxial cable connector with main body tightly fastened to protective coating (2002-06-11),

9. 6290520 - Television co-viewing series unit (2001-09-18),

10. 6175483 - Multi-tap distribution apparatus (2001-01-16),

11. 6157273 - Rotatable directional coupler with a tap plate (2000-12-05),

12. 6072981 - Multi-tap distribution apparatus (2000-06-06),

13. 5995005 - Theft checking system (1999-11-30),

14. 5990759 - Directional coupler rotatable around a fulcrum (1999-11-23),

15. 5973597 - Theft checking system (1999-10-26),

Company Overview

Maspro Denkoh Co., Ltd. is a prominent Japanese company specializing in the development and manufacturing of advanced communication equipment and systems. With a strong focus on wireless technology, the company offers a range of products including antennas, amplifiers, and other devices that facilitate efficient data transmission. Operating primarily in the telecommunications sector, Maspro Denkoh is dedicated to innovation and quality, serving both domestic and international markets with cutting-edge solutions tailored to meet the evolving needs of connectivity.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

20 Patents

#63 in Aichi

#2,946 in Japan

#31,315 in the World

Maspro Denkoh Co., Ltd.

Forward Citations = 142

19 inventors:

Hiroshi Matsubara (4 out of 10 patents)

Michinari Hayashi (3 out of 3 patents)

Toshihiro Sugiura (2 out of 12 patents)

4. Takashi Tamezane (2 out of 2 patents)

5. Yoshirou Hoshino (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Maspro Denkoh Co., Ltd.. Retrieved from https://idiyas.com/company/maspro-denkoh-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]

Loading…