EPO Patents = 1

Forward Citations = 36

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10 inventors (with patents filed for the assignee):

Hiroji Kawai (4 out of 4 patents)

Shuichi Yagi (2 out of 2 patents)

Shoko Echigoya (1 out of 1 patent)

4. Fumihiko Nakamura (1 out of 1 patent)

5. Souta Matsumoto (1 out of 1 patent)

6. Sankara Narayanan Ekkanath Madathil (1 out of 4 patents)

7. Akira Nakajima (1 out of 2 patents)

8. Yasunobu Sumida (1 out of 1 patent)

9. Eiichi Yamaguchi (1 out of 1 patent)

10. Hironobu Narui (1 out of 1 patent)

5 patents: Sort by Forward Citations

1. 12446250 - Normally-off mode polarization super junction GaN-based field effect transistor and electrical equipment (2025-10-14),

2. 10014399 - Hetero-junction bipolar transistor and electric device (2018-07-03),

3. 9991335 - Semiconductor device having a polarization super junction field effect transistor, electric equipment, bidirectional field effect transistor, and mounted structure body having the same (2018-06-05),

4. 8785976 - Polarization super-junction low-loss gallium nitride semiconductor device (2014-07-22),

5. 7368018 - Chemical vapor deposition apparatus (2008-05-06),

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USPTO Data Jan 1 1976 - Dec 9 2025

5 Patents

#1 in Oyama-shi, Tochigi

#6,488 in Japan

Oyama-shi, Tochigi, Japan

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