Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6792771 | Air-conditioning apparatus | Chun-cheng Piao, Ryuichi Sakamoto, Kazuo Yonemoto, Shotaro Mishina, Akira Kamino | 2004-09-21 |
| 6786059 | Refrigeration system | Chun-cheng Piao, Ryuichi Sakamoto, Yuji Watanabe, Kazuo Yonemoto | 2004-09-07 |
| 6708517 | Heat pump | Chun-cheng Piao, Ryuichi Sakamoto, Yuji Watanabe, Kazuo Yonemoto | 2004-03-23 |
| 6672099 | Refrigeration system | Chun-cheng Piao, Ryuichi Sakamoto, Yuji Watanabe, Kazuo Yonemoto | 2004-01-06 |