Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868556 | Cathode ray tube controller | Jyoji Murakami, Junya Tempaku | 1989-09-19 |
| 4857220 | Base oil of lubricating oil for mechanical apparatuses with orifice mechanism | — | 1989-08-15 |
| 4822507 | Lubricating oil composition serving as sliding surface oil and metal working oil, and method of lubricating working machinery using said oil composition | Hideo Kanamori | 1989-04-18 |