Issued Patents 1982
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4359022 | Valve for an internal combustion engine | Kiyoshi Nakamura, Masae Nakanishi, Syozo Kawasaki, Toshihiko Ochiai | 1982-11-16 |
| 4341874 | Si.sub.3 N.sub.4 Ceramic powder material and method for manufacturing the same | Michiyasu Komatsu, Tadashi Miyano | 1982-07-27 |
| 4332909 | Silicon nitride based sintered product and method of producing the same | Toshihiko Ochiai | 1982-06-01 |
| 4325334 | Prechamber cup for an internal combustion engine | Syoji Okada, Akio Ando, Masato Sakai | 1982-04-20 |