Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5236044 | Heat exchanger tank partition device | Yoshikiyo Nagasaka | 1993-08-17 |
| 5205349 | Heat exchanger bracket mounting structure | Yoshikiyo Nagasaka | 1993-04-27 |
| 4848214 | Supply and return air plenum unit for duct air-conditioning systems | Shigeo Tanaka | 1989-07-18 |
| 4828019 | Indoor unit for room air conditioners and air conditioning system using the same | Yutaka Ishizuka | 1989-05-09 |
| 4805418 | Indoor unit for room air conditioners | Yutaka Ishizuka | 1989-02-21 |
| 4696340 | Air conditioner | Yuji Kawamura, Koichi Kashima | 1987-09-29 |