Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5970722 | Air conditioning apparatus returning refrigerating machine oil to compressor by two restrictors and method of controlling air conditioning apparatus | Etsuo Shibata, Kenji Yao | 1999-10-26 |
| 4926653 | Multi-room type air-conditioning equipment | Masaaki Masuda, Masanori Kotani, Shuichi SAKATA | 1990-05-22 |