Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12154790 | Etching method and plasma processing apparatus | Seiichi Watanabe, Manabu Sato, Masayuki Sawataishi, Hiroki Yamada | 2024-11-26 |
| 5401684 | Method of manufacturing a light-emitting semiconductor device substrate | Masato Yamada, Takao Takenaka | 1995-03-28 |
| 4905058 | Light-emitting semiconductor device | Masato Yamada, Takao Takenaka | 1990-02-27 |