Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7253031 | Semiconductor device and manufacturing method thereof | Tetsuo Takahashi, Katsumi Nakamura, Tadaharu Minato | 2007-08-07 |
| 6979874 | Semiconductor device and method of manufacturing thereof | — | 2005-12-27 |
| 6897493 | Semiconductor device | Tetsuo Takahashi, Katsumi Nakamura, Tadaharu Minato | 2005-05-24 |
| 6867437 | Semiconductor device | Tetsuo Takahashi, Katsumi Nakamura, Tadaharu Minato | 2005-03-15 |
| 6693310 | Semiconductor device and manufacturing method thereof | Tetsuo Takahashi, Katsumi Nakamura, Tadaharu Minato | 2004-02-17 |
| 6501146 | Semiconductor device and method of manufacturing thereof | — | 2002-12-31 |
| 6445012 | Semiconductor device and manufacturing method thereof | Tetsuo Takahashi, Katsumi Nakamura, Tadaharu Minato | 2002-09-03 |
| 6331466 | Insulated gate semiconductor device and manufacturing method thereof | Hideki Takahashi, Hidenori Nishihara, Tadaharu Minato | 2001-12-18 |
| 6323508 | Insulated gate semiconductor device and manufacturing method thereof | Hideki Takahashi, Hidenori Nishihara, Tadaharu Minato | 2001-11-27 |
| 6265735 | Semiconductor device and manufacturing method thereof | Tetsuo Takahashi, Katsumi Nakamura, Tadaharu Minato | 2001-07-24 |
| 6177713 | Free wheel diode for preventing destruction of a field limiting innermost circumferential layer | Shinji Aono | 2001-01-23 |
| 6107650 | Insulated gate semiconductor device and manufacturing method thereof | Hideki Takahashi, Hidenori Nishihara, Tadaharu Minato | 2000-08-22 |
| 5977570 | Semiconductor device and manufacturing method thereof | Tetsuo Takahashi, Katsumi Nakamura, Tadaharu Minato | 1999-11-02 |
| 5559348 | Semiconductor device having insulated gate bipolar transistor | Kiyoto Watabe, Ikunori Takata | 1996-09-24 |
| 5547886 | Method of producing a semiconductor device | — | 1996-08-20 |
| 5525821 | PN junction trench isolation type semiconductor device | Katsuhiro Tsukamoto | 1996-06-11 |
| 5468654 | Method of manufacturing an insulated gate bipolar transistor | — | 1995-11-21 |
| 5457329 | Voltage-driven thyristor | — | 1995-10-10 |
| 5298780 | Semiconductor device and method of fabricating same | — | 1994-03-29 |
| 5264381 | Method of manufacturing a static induction type switching device | — | 1993-11-23 |
| 5173435 | Insulated gate bipolar transistor | — | 1992-12-22 |
| 5143859 | Method of manufacturing a static induction type switching device | — | 1992-09-01 |
| 5079602 | Insulated gate bipolar transistor | — | 1992-01-07 |
| 5070377 | Semiconductor device and method of manufacturing the same | — | 1991-12-03 |
| 5047813 | Semiconductor device and method of manufacturing the same | — | 1991-09-10 |