Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10109501 | Manufacturing method of semiconductor device having a voltage resistant structure | Koh Yoshikawa, Haruo Nakazawa, Kenichi Iguchi, Katsuya Okumura | 2018-10-23 |
| 9825145 | Method of manufacturing silicon carbide semiconductor device including forming an electric field control region by a laser doping technology | Koh Yoshikawa, Haruo Nakazawa, Kenichi Iguchi | 2017-11-21 |
| 9786749 | Semiconductor device having a voltage resistant structure | Koh Yoshikawa, Haruo Nakazawa, Kenichi Iguchi, Katsuya Okumura | 2017-10-10 |
| 9659775 | Method for doping impurities, method for manufacturing semiconductor device | Akihiro Ikeda, Hiroshi Ikenoue, Tanemasa Asano, Kenichi Iguchi, Haruo Nakazawa +1 more | 2017-05-23 |
| 5789311 | Manufacturing method of SiC Schottky diode | Katsunori Ueno, Tatsuo URUSHIDANI, Koichi Hashimoto, Shinji Ogino | 1998-08-04 |
| 5532502 | Conductivity-modulated-type MOSFET | — | 1996-07-02 |
| 5349212 | Semiconductor device having thyristor structure | — | 1994-09-20 |
| 5068581 | Horizontal deflection circuit for high-frequency scanning | Akira Nishiura, Naoki Kumagai | 1991-11-26 |
| 5034336 | Method of producing insulated gate bipolar tranistor | — | 1991-07-23 |
| 5032888 | Conductivity modulation buried gate trench type MOSFET | — | 1991-07-16 |
| 5025293 | Conductivity modulation type MOSFET | — | 1991-06-18 |
| 4914047 | Method of producing insulated gate MOSFET employing polysilicon mask | — | 1990-04-03 |
| 4901124 | Conductivity modulated MOSFET | — | 1990-02-13 |
| 4896200 | Novel semiconductor-based radiation detector | Noritada Sato, Masaya Yabe | 1990-01-23 |
| 4835587 | Semiconductor device for detecting radiation | Noritada Sato | 1989-05-30 |
| 4762803 | Process for forming crystalline films by glow discharge | Noritada Sato | 1988-08-09 |
| 4692782 | Semiconductor radioactive ray detector | Noritada Sato, Masaya Yabe | 1987-09-08 |
| 4689649 | Semiconductor radiation detector | Noritada Sato, Toshikazu Suzuki | 1987-08-25 |
| 4671651 | Solid-state optical temperature measuring device | Taro TOYODA | 1987-06-09 |
| 4627991 | Method for forming a protective film on a semiconductor body | Noritada Sato, Osamu Ishiwata | 1986-12-09 |
| 4618381 | Method for adding impurities to semiconductor base material | Noritada Sato, Osamu Ishiwate | 1986-10-21 |
| 4611224 | Semiconductor radiation detector | Noritada Sato, Masaya Yabe | 1986-09-09 |
| 4565588 | Method for diffusion of impurities | Noritada Sato | 1986-01-21 |