Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4336776 | Swirl-inducing apparatus for internal combustion engines | Masaharu Sumiyoshi, Setsuro Sekiya, Katsuhiko Motosugi, Hiroshi Takahashi | 1982-06-29 |
| 4323038 | Intake system of a multi-cylinder internal combustion engine | Katsuhiko Motosugi, Hiroshi Takahashi, Toshio Tanahashi | 1982-04-06 |
| 4314529 | Intake system of a multi-cylinder internal combustion engine | Katsuhiko Motosugi, Hiroshi Takahashi, Toshiaki Konomi, Hideaki Matsui | 1982-02-09 |