Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9064689 | Semiconductor device and manufacturing method thereof | Shigeo Tokumitsu | 2015-06-23 |
| 8638533 | Semiconductor device | — | 2014-01-28 |
| 7026705 | Semiconductor device with surge protection circuit capable of preventing current leakage | Fumitoshi Yamamoto | 2006-04-11 |
| 6849921 | Semiconductor device | — | 2005-02-01 |
| 6784499 | Semiconductor device serving as a protecting element | — | 2004-08-31 |
| 6781206 | Semiconductor device with structure restricting flow of unnecessary current therein | — | 2004-08-24 |
| 6218217 | Semiconductor device having high breakdown voltage and method of manufacturing the same | Katsumi Nakamura | 2001-04-17 |
| 6111290 | Semiconductor device having high breakdown voltage and method of manufacturing the same | Katsumi Nakamura | 2000-08-29 |
| 6111453 | Power switching device | Saori Uchida | 2000-08-29 |
| 6103578 | Method for forming high breakdown semiconductor device | Tadaharu Minato | 2000-08-15 |
| 6069372 | Insulated gate type semiconductor device with potential detection gate for overvoltage protection | — | 2000-05-30 |
| 6040600 | Trenched high breakdown voltage semiconductor device | Tadaharu Minato | 2000-03-21 |
| 5894149 | Semiconductor device having high breakdown voltage and method of manufacturing the same | Katsumi Nakamura | 1999-04-13 |
| 5729031 | High breakdown voltage semiconductor device | — | 1998-03-17 |
| 5443999 | Method of fabricating a flash control device which uses cascade-connected thyristor and MOSFET | Hiroshi Yamaguchi, Yasuaki Fukumochi | 1995-08-22 |
| 5408117 | Semiconductor device and method of fabricating the same | — | 1995-04-18 |
| 5379089 | Flash control device using cascade-connected thyristor and MOSFET | Yasuaki Fukumochi | 1995-01-03 |
| 5184171 | Electronic flash device | — | 1993-02-02 |
| 5151762 | Semiconductor device, fabricating method thereof and flash control device using the semiconductor device | Hiroshi Yamaguchi, Yasuaki Fukumochi | 1992-09-29 |
| 5140201 | Gate drive circuit for insulated gate semiconductor device and flash controller using the circuit | — | 1992-08-18 |
| 5008720 | Semiconductor device with stepped well | — | 1991-04-16 |