Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4500099 | Elastic supporting and sealing member with thermal foaming strip | Katsutoshi Kitagawa, Kiyoshi Isogai, Nobuo Ohmori, Makoto Okamoto, Itsuo Koga +1 more | 1985-02-19 |
| 4466397 | Flow control device of a helically-shaped intake port | Shinichi Kato, Katsuhiko Motosugi, Kiyoshi Isogai, Ituo Koga | 1984-08-21 |
| 4448754 | Monolithic catalyst catalytic converter with catalyst holding expansible retainer ring | Kiyoshi Isogai, Nobuo Tobi, Itsuo Koga, Masahiko Takeuchi, Makoto Okamoto +1 more | 1984-05-15 |