Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883969 | Method of ionizing gas within cathode-containing chamber | Yoshihiro Ishida, Hideo Kobayashi | 1989-11-28 |
| 4841438 | System for generating mask pattern for vector data processor | Yuuichi Sasaki | 1989-06-20 |