Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4805718 | Power transmission system for a four-wheel drive | Kyoji Takenaka | 1989-02-21 |
| 4807015 | Semiconductor device having electrodes and or interconnections of refractory metal film containing silicon oxide | Nobuyoshi Kobayashi, Nobuo Hara, Naoki Yamamoto | 1989-02-21 |