Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5244822 | Method of fabricating bipolar transistor using self-aligned polysilicon technology | Nobuyuki Itoh, Hiroomi Nakajima, Eiryo Tsukioka, Toshio Yamaguchi | 1993-09-14 |
| 5204276 | Method of manufacturing semiconductor device | Hiroomi Nakajima, Nobuyuki Itoh, Eiryo Tsukioka, Kenji Hirakawa, Shin-ichi Taka +3 more | 1993-04-20 |
| 5100813 | Method of manufacturing bipolar transistor | Nobuyuki Itoh | 1992-03-31 |
| 5096842 | Method of fabricating bipolar transistor using self-aligned polysilicon technology | Nobuyuki Itoh, Hiroomi Nakajima, Eiryo Tsukioka, Toshio Yamaguchi | 1992-03-17 |
| 4931409 | Method of manufacturing semiconductor device having trench isolation | Hiroomi Nakajima, Nobuyuki Itoh | 1990-06-05 |
| 4908324 | Method of manufacturing bipolar transistor | Nobuyuki Itoh | 1990-03-13 |