Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4826780 | Method of making bipolar transistors | Tadao Komeda, Haruyasu Yamada, Tsutomu Fujita | 1989-05-02 |
| 4814287 | Method of manufacturing a semiconductor integrated circuit device | Kenji Kawakita, Hiroyuki Sakai | 1989-03-21 |