Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4560104 | Coolant temperature control system of internal combustion engine | Shinichi Nagumo, Fumio Sanezawa | 1985-12-24 |
| 4545333 | System for controlling coolant temperature of internal combustion engine | Shinichi Nagumo, Yoshio Toda, Yasuo Nakajima | 1985-10-08 |
| 4475739 | Piston ring assembly for automotive internal combustion engine | Yasuo Nakajima, Shinichi Nagumo, Takaharu Gotoh | 1984-10-09 |