Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822093 | Vehicle seat with rotatable backrest | Naoki Kawai, Toshiaki Shimogawa, Koji Imai, Toshikazu Ina, Akira Kuno | 1989-04-18 |
| 4807934 | Device for moving up and down and tilting a headrest of a vehicle seat | Kazuo Sakakibara, Toshiaki Shimogawa, Koji Imai, Toshikazu Ina | 1989-02-28 |
| 4805733 | Active silencer | Masahiko Kato, Masanori Katou, Katsuyuki Tanaka, Koji Ito | 1989-02-21 |
| 4802706 | Rotary seat for vehicle | Sadahisa Onimaru, Toshiaki Shimogawa, Masahiro Taguchi | 1989-02-07 |