Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887496 | Method of making drills, endmills and other rotating-and-cutting tools | — | 1989-12-19 |
| 4882502 | Integrated circuit for controlling the loads of automobile circuitry | — | 1989-11-21 |
| 4879360 | Polyphenylene ether resin composition | Tosio Itou, Takayuki Inoue | 1989-11-07 |