% Expired Patents = 25.0

Forward Citations = 29

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15 inventors (with patents filed for the assignee):

Atsuro Ichigaya (1 out of 72 patents)

Osamu Ozawa (1 out of 51 patents)

Arihiro Saita (1 out of 10 patents)

4. Takahiro Hamada (1 out of 18 patents)

5. Naruo Takizawa (1 out of 2 patents)

6. Yuichi Sawahata (1 out of 1 patent)

7. Kenichiro Masaoka (1 out of 1 patent)

8. Yukihiro Nishida (1 out of 7 patents)

9. Hiroyuki Konno (1 out of 15 patents)

10. Eisuke Nakasu (1 out of 2 patents)

11. Koji Sasazawa (1 out of 16 patents)

12. Hotaka Minaguchi (1 out of 3 patents)

13. Hiromichi Shibaya (1 out of 1 patent)

14. Tatsuji Kitamoto (1 out of 76 patents)

15. Mitsuo Mino (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 9696554 - Color separation optical assembly and image capture device (2017-07-04),

2. 7561622 - Video analyzer and video error detector (2009-07-14),

3. 4982302 - Magnetic recording medium and method for magnetic recording and (1991-01-01),

4. 4470067 - Automatic gain control apparatus (1984-09-04),

Japan Broadcasting Corporation (NHK) is Japan's public broadcaster, providing a wide range of programming in both domestic and international markets. NHK operates radio, television, and online services, offering news, entertainment, educational, and cultural content to viewers around the world.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

4 Patents

#3,051 in Tokyo

#7,569 in Japan

Tokyo, Japan

Japan Broadcasting Corporation