Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6921718 | Semiconductor device and method of manufacturing the same | Naoto Andoh, Takao Ishida | 2005-07-26 |
| 5886373 | Field effect transistor | — | 1999-03-23 |
| 5728611 | Method of fabricating semiconductor device | Takayuki Hisaka, Naohito Yoshida | 1998-03-17 |
| 5449929 | IPG transistor semiconductor integrated circuit device | — | 1995-09-12 |
| 5267884 | Microminiature vacuum tube and production method | — | 1993-12-07 |
| 5245247 | Microminiature vacuum tube | — | 1993-09-14 |
| 5019877 | Field effect transistor | — | 1991-05-28 |