Kohhei Onda — 5 Patents at Hitachi Power Semiconductor Device

Kohhei Onda has been granted 5 US patents while listed as an inventor at Hitachi Power Semiconductor Device. The first was granted in 2017 and the most recent in November 2025. Kohhei Onda ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Kohhei Onda in Tokyo, JP.

Patents per Year

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #	Title	Co-Inventors	Date
12463526	Gate leakage current detection determining gate withstand voltage rating and a power converter	Shotaro KARASUYAMA	2025-11-04
10319849	Semiconductor device, and alternator and power conversion device which use same	Tetsuya Ishimaru, Mutsuhiro Mori, Junichi Sakano	2019-06-11
10069436	Synchronous rectifier and alternator using the same	Tetsuya Ishimaru, Shinichi Kurita, Shigeru Sugayama	2018-09-04
9966871	Rectification device, alternator, and power conversion device	Tetsuya Ishimaru, Junichi Sakano, Mutsuhiro Mori	2018-05-08
9831145	Semiconductor device, and alternator and power converter using the semiconductor device	Tetsuya Ishimaru, Mutsuhiro Mori, Shinichi Kurita, Shigeru Sugayama, Junichi Sakano	2017-11-28