Shigeru Sugayama — 6 Patents at Hitachi

Shigeru Sugayama has been granted 6 US patents while listed as an inventor at Hitachi. The first was granted in 1988 and the most recent in September 2018. Shigeru Sugayama ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Shigeru Sugayama in Ibaraki, JP.

Patents per Year

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
10069436	Synchronous rectifier and alternator using the same	Tetsuya Ishimaru, Kohhei Onda, Shinichi Kurita	2018-09-04
9831145	Semiconductor device, and alternator and power converter using the semiconductor device	Tetsuya Ishimaru, Mutsuhiro Mori, Shinichi Kurita, Junichi Sakano, Kohhei Onda	2017-11-28
6288597	Temperature sensing circuit for voltage drive type semiconductor device and temperature sensing method therefore, and drive-device and voltage drive type semiconductor device using the same	Hiroyuki Hasegawa, Toshiki Kurosu	2001-09-11
4833587	Semiconductor switching circuit	Tadaaki Kariya, Tatsuo Shimura, Sigeo Tomita	1989-05-23	$36,000
4740723	Semiconductor switch	Tatsuo Shimura, Tadaaki Kariya, Sigeo Tomita	1988-04-26	$148,000
4728825	Bidirectional MOS linear switch	Tadaaki Kariya, Tatsuo Shimura, Sigeo Tomita	1988-03-01