Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877650 | Method for forming deposited film | Yutaka Hirai, Masao Ueki, Akira Sakai | 1989-10-31 |
| 4873125 | Method for forming deposited film | Yutaka Hirai, Masao Ueki, Akira Sakai | 1989-10-10 |