Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4986345 | Rotary heat exchanger | Yoshinori Hirano, Hitoshi Shimonosono | 1991-01-22 |
| 4934448 | Rotary heat exchanger | Yoshinori Hirano, Hitoshi Shimonosono | 1990-06-19 |
| 4565162 | Cooling system of an internal combustion engine | Nakanobu Seki, Yoshimasa Hayashi | 1986-01-21 |
| 4462757 | Fan blade structure | — | 1984-07-31 |