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Nisshin-Shi, Japan

Maspro Denkoh Co., Ltd.

USPTO Granted Patents = 20

Forward Citations = 140

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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),

Maspro Denkoh Co., Ltd. is a leading provider of antenna and related products in Japan. With over 70 years of experience, Maspro offers high-quality and innovative solutions for broadcasting, communication, and wireless technology. The company specializes in the design, manufacturing, and distribution of antennas, RF components, and accessories for various industries. Maspro is committed to providing reliable products and excellent customer service to meet the needs of its clients worldwide.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

20 Patents

#1 in Nisshin-Shi

#2,882 in Japan

#30,316 in the World

Nisshin-Shi, Japan

Maspro Denkoh Co., Ltd.

Forward Citations = 140

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)

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