Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6234164 | Intake and discharge tube closure detector for combustion device of forced intake and discharge type | — | 2001-05-22 |
| 6223992 | Air-conditioning system with timer device | Akira Kanda | 2001-05-01 |
| 6089221 | Space heater | Hiroshi Mano | 2000-07-18 |