Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870031 | Method of manufacturing a semiconductor device | Kazuyuki Sugahara, Shigeru Kusunoki, Yasuo Inoue | 1989-09-26 |
| 4861418 | Method of manufacturing semiconductor crystalline layer | Yasuo Inoue, Kazuyuki Sugahara, Shigeru Kusunoki | 1989-08-29 |
| 4845537 | Vertical type MOS transistor and method of formation thereof | Kazuyuki Sugahara, Shigeru Kusunoki, Akihiko Ohsaki | 1989-07-04 |
| 4822751 | Method of producing a thin film semiconductor device | Akira Ishizu, Yasuo Inoue | 1989-04-18 |
| 4822752 | Process for producing single crystal semiconductor layer and semiconductor device produced by said process | Kazuyuki Sugahara, Shigeru Kusunoki, Yasuo Inoue | 1989-04-18 |
| 4797723 | Stacked semiconductor device | Yoichi Akasaka | 1989-01-10 |