Issued Patents All Time
Showing 26–45 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6323508 | Insulated gate semiconductor device and manufacturing method thereof | Hideki Takahashi, Hidenori Nishihara, Masana Harada | 2001-11-27 |
| 6307246 | Semiconductor resurf devices formed by oblique trench implantation | Tetsuya Nitta, Akio Uenisi | 2001-10-23 |
| 6265735 | Semiconductor device and manufacturing method thereof | Tetsuo Takahashi, Katsumi Nakamura, Masana Harada | 2001-07-24 |
| 6252259 | Semiconductor switching device having different carrier lifetimes between a first portion serving as a main current path and the remaining portion of the device | — | 2001-06-26 |
| 6225649 | Insulated-gate bipolar semiconductor device | — | 2001-05-01 |
| 6107650 | Insulated gate semiconductor device and manufacturing method thereof | Hideki Takahashi, Hidenori Nishihara, Masana Harada | 2000-08-22 |
| 6103578 | Method for forming high breakdown semiconductor device | Akio Uenishi | 2000-08-15 |
| 6100575 | Semiconductor switching device having different carrier lifetimes between a first portion serving as a main current path and the remaining portion of the device | — | 2000-08-08 |
| 6040600 | Trenched high breakdown voltage semiconductor device | Akio Uenishi | 2000-03-21 |
| 5977570 | Semiconductor device and manufacturing method thereof | Tetsuo Takahashi, Katsumi Nakamura, Masana Harada | 1999-11-02 |
| 5925899 | Vertical type insulated gate bipolar transistor having a planar gate structure | Hideki Nakamura | 1999-07-20 |
| 5783491 | Method of forming a truck MOS gate or a power semiconductor device | Katsumi Nakamura, Shuuichi Tominaga, Katsuomi Shiozawa | 1998-07-21 |
| 5773851 | Semiconductor device and manufacturing method thereof | Hideki Nakamura | 1998-06-30 |
| 5736438 | Field effect thin-film transistor and method of manufacturing the same as well as semiconductor device provided with the same | Hisayuki Nishimura, Kazuyuki Sugahara, Shigenobu Maeda, Takashi Ipposhi, Yasuo Inoue +4 more | 1998-04-07 |
| 5578522 | Semiconductor device and method of fabricating same | Katsumi Nakamura, Shuuichi Tominaga, Katsuomi Shiozawa | 1996-11-26 |
| 5514880 | Field effect thin-film transistor for an SRAM with reduced standby current | Hisayuki Nishimura, Kazuyuki Sugahara, Shigenobu Maeda, Takashi Ipposhi, Yasuo Inoue +4 more | 1996-05-07 |
| 5510274 | Method of controlling a carrier lifetime in a semiconductor switching device | — | 1996-04-23 |
| 5508534 | Trench gate type insulated gate bipolar transistor | Katsumi Nakamura, Shuuichi Tominga, Katsuomi Shiozawa | 1996-04-16 |
| 5144402 | Semiconductor switching device and method of controlling a carrier life time in a semiconductor switching device | — | 1992-09-01 |
| 5086330 | Bipolar semiconductor switching device | — | 1992-02-04 |