TY

Tsutomu Yatsuo

HI Hitachi: 23 patents #1,433 of 28,497Top 6%
SC Sanyo Electric Co.: 2 patents #2,557 of 6,347Top 45%
YA Yazaki: 1 patents #2,077 of 3,427Top 65%
📍 Tsukuba, JP: #70 of 2,818 inventorsTop 3%
Overall (All Time): #113,639 of 4,157,543Top 3%
32
Patents All Time

Issued Patents All Time

Showing 1–25 of 32 patents

Patent #TitleCo-InventorsDate
9806520 Inrush current limiting circuit Osamu Kimura, Yasunori Tanaka 2017-10-31
9490338 Silicon carbide semiconductor apparatus and method of manufacturing same Shinsuke Harada, Kenji Fukuda, Mitsuo Okamoto, Kazuhiro Adachi, Seiji Suzuki 2016-11-08
8952391 Silicon carbide semiconductor device and its manufacturing method Shinsuke Harada, Kenji Fukuda, Mitsuo Okamoto, Kazuhiro Adachi, Seiji Suzuki 2015-02-10
8835933 Recessed gate-type silicon carbide field effect transistor and method of producing same Takahiro Nagano, Mitsuo Okamoto, Kenji Fukuda 2014-09-16
8003991 Silicon carbide MOS field effect transistor with built-in Schottky diode and method for fabrication thereof Shinsuke Harada, Kenji Fukuda, Mitsuo Okamoto 2011-08-23
7935628 Silicon carbide semiconductor device and method for producing the same Shinsuke Harada, Makoto Katou, Kenji Fukuda 2011-05-03
7880173 Semiconductor device and method of manufacturing same Kenji Fukuda, Junji Senzaki, Shinsuke Harada, Makoto Kato, Mitsuo Okamoto 2011-02-01
7811874 Method for manufacturing silicon carbide semiconductor device, and silicon carbide semiconductor device Shinsuke Harada, Makoto Katou, Kenji Fukuda 2010-10-12
7728336 Silicon carbide semiconductor device and method for producing the same Shinsuke Harada, Mitsuo Okamoto, Kenji Fukuda, Makoto Kato 2010-06-01
6750477 Static induction transistor Toshiyuki Ohno, Hidekatsu Onose, Saburo Oikawa 2004-06-15
6566726 Semiconductor device and power converter using the same Hidekatsu Onose, Toshiyuki Ohno, Saburou Oikawa 2003-05-20
6384428 Silicon carbide semiconductor switching device Toshiyuki Oono, Takayuki Iwasaki 2002-05-07
6353236 Semiconductor surge absorber, electrical-electronic apparatus, and power module using the same Takayuki Iwasaki, Hidekatsu Onose, Shin Kimura 2002-03-05
6180959 Static induction semiconductor device, and driving method and drive circuit thereof Takayuki Iwasaki, Toshiyuki Ohno 2001-01-30
6169672 Power converter with clamping circuit Shin Kimura, Takayuki Iwasaki 2001-01-02
5831293 Semiconductor thyristor switching device and power converter using same Tetsuo Mizoguchi, Masahiro Nagasu, Hideo Kobayashi 1998-11-03
5736753 Semiconductor device for improved power conversion having a hexagonal-system single-crystal silicon carbide Toshiyuki Ohno, Yohsuke Inoue, Daisuke Kawase, Yuzo Kozono, Takaya Suzuki 1998-04-07
5324967 Turn off type semiconductor device, method of producing the same and the power conversion apparatus employing the same Hideo Honma, Yukimasa Satou, Susumu Murakami, Isamu Sanpei, Kenji Yagishita 1994-06-28
5021855 Gate turn-off thyristor Saburo Oikawa, Yukimasa Satou 1991-06-04
4825270 Gate turn-off thyristor Yukimasa Satou, Saburo Oikawa, Isamu Sanpei 1989-04-25
4691223 Semiconductor device having high breakdown voltage Susumu Murakami, Teruyuki Kagami, Masaaki Takahashi 1987-09-01
4682199 High voltage thyristor with optimized doping, thickness, and sheet resistivity for cathode base layer Naohiro Momma, Masayoshi Naito, Masahiro Okamura 1987-07-21
4651189 Semiconductor device provided with electrically floating control electrode Takahiro Nagano, Saburo Oikawa, Yukimasa Sato, Shin Kimura, Hiroshi Fukui 1987-03-17
4646122 Semiconductor device with floating remote gate turn-off means Shin Kimura, Hiroshi Fukui, Hisao Amano, Saburo Oikawa, Takahiro Nagano 1987-02-24
4626888 Gate turn-off thyristor Takahiro Nagano, Saburo Oikawa, Akira Horie 1986-12-02