YO

Yoshinobu Ohtsubo

TK Toyo Denki Seizo Kabushiki Kaisha: 3 patents #3 of 29Top 15%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
ZS Zaidan Hojin Handotai Kenkyu Shinkokai: 1 patents #15 of 34Top 45%
Overall (All Time): #1,644,756 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5665987 Insulated gate static induction thyristor with a split gate type shorted cathode structure Kimihiro Muraoka, Toshio Higuchi, Makoto Iguchi, Takashige Tamamushi 1997-09-09
5461242 Insulated gate static induction thyristor with a split gate type shorted cathode structure Kimihiro Muraoka, Toshio Higuchi, Makoto Iguchi, Takashige Tamamushi 1995-10-24
4984049 Static induction thyristor Jun-ichi Nishizawa, Tadahiro Ohmi 1991-01-08