Issued Patents All Time
Showing 101–125 of 128 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7508045 | SiC Schottky barrier semiconductor device | Johji Nishio, Takuma Suzuki, Chiharu Ota | 2009-03-24 |
| 7439563 | High-breakdown-voltage semiconductor device | Tetsuo Hatakeyama | 2008-10-21 |
| 7368783 | Semiconductor device | Makoto Mizukami | 2008-05-06 |
| 7238576 | Semiconductor device and method of manufacturing the same | Masakazu Yamaguchi, Ichiro Omura, Wataru Saito, Hiromichi Ohashi | 2007-07-03 |
| 7078781 | High-breakdown-voltage semiconductor device | Tetsuo Hatakeyama | 2006-07-18 |
| 7049675 | High withstand voltage semiconductor device | Kozo Kinoshita, Tetsuo Hatakeyama | 2006-05-23 |
| 7026668 | High-breakdown-voltage semiconductor device | Tetsuo Hatakeyama | 2006-04-11 |
| 6969887 | Semiconductor device | Makoto Mizukami | 2005-11-29 |
| 6855970 | High-breakdown-voltage semiconductor device | Tetsuo Hatakeyama | 2005-02-15 |
| 6831345 | High withstand voltage semiconductor device | Kozo Kinoshita, Tetsuo Hatakeyama | 2004-12-14 |
| 6246077 | Semiconductor device | Setsuko Kobayashi, Tomoki Inoue, Akihiro Yahata | 2001-06-12 |
| 6236069 | Insulated-gate thyristor | Kazuya Nakayama, Minami Takeuchi, Masakazu Yamaguchi, Mitsuhiko Kitagawa, Ichiro Omura +1 more | 2001-05-22 |
| 6111454 | Power supply circuit | Masakazu Yamaguchi, Kimihiro Hoshi | 2000-08-29 |
| 6054748 | High voltage semiconductor power device | Masanori Tsukuda, Masakazu Yamaguchi | 2000-04-25 |
| 5977564 | Semiconductor device | Setsuko Kobayashi, Tomoki Inoue, Akihiro Yahata | 1999-11-02 |
| 5969400 | High withstand voltage semiconductor device | Yoshihiro Minami, Ichiro Omura | 1999-10-19 |
| 5962893 | Schottky tunneling device | Ichiro Omura | 1999-10-05 |
| 5910738 | Driving circuit for driving a semiconductor device at high speed and method of operating the same | Masakazu Yamaguchi, Kimihiro Hoshi | 1999-06-08 |
| 5793065 | Insulated-gate thyristor | Kazuya Nakayama, Minami Takeuchi, Masakazu Yamaguchi, Mitsuhiko Kitagawa, Ichiro Omura +1 more | 1998-08-11 |
| 5464994 | Insulated-gate thyristor | Kazuya Nakayama, Minami Takeuchi, Masakazu Yamaguchi, Mitsuhiko Kitagawa, Ichiro Omura +1 more | 1995-11-07 |
| 5381026 | Insulated-gate thyristor | Kazuya Nakayama, Minami Takeuchi, Masakazu Yamaguchi, Mitsuhiko Kitagawa, Ichiro Omura +1 more | 1995-01-10 |
| 5210432 | Insulated gate GTO thyristor | Masaki Atsuta, Akio Nakagawa | 1993-05-11 |
| 4963972 | Gate turn-off thyristor with switching control field effect transistor | Akio Nakagawa | 1990-10-16 |
| 4914496 | Gate turn-off thyristor with independent turn-on/off controlling transistors | Akio Nakagawa | 1990-04-03 |
| 4791470 | Reverse conducting gate turn-off thyristor device | Katsuhiko Takigami, Hiromichi Ohashi, Tsuneo Ogura, Masayuki Asaka | 1988-12-13 |