Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5617995 | Combustion heater | Sadahisa Onimaru, Takashi Inoue, Hiroshi Okada, Akikazu Kojima, Niro Takaki | 1997-04-08 |
| 5616021 | Fuel burning heater | Sadahisa Onimaru, Takashi Inoue, Hiroshi Okada | 1997-04-01 |