Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |
| 6629427 | Refrigerating system | Chung-cheng Piao, Ryuichi Sakamoto, Yuji Watanabe, Kazuo Yonemoto | 2003-10-07 |
| 6619064 | Air conditioning system | Chun-cheng Piao, Ryuichi Sakamoto, Yuji Watanabe, Kazuo Yonemoto | 2003-09-16 |
| 6539744 | Air-conditioning apparatus | Chun-cheng Piao, Ryuichi Sakamoto, Kazuo Yonemoto, Shotaro Mishina, Akira Kamino | 2003-04-01 |
| 6484525 | Air conditioner | Chun-cheng Piao, Ryuichi Sakamoto, Yuji Watanabe, Kazuo Yonemoto | 2002-11-26 |
| 6484528 | Air-conditioner | Chun-cheng Piao, Ryuichi Sakamoto, Kazuo Yonemoto, Shotaro Mishina, Akira Kamino | 2002-11-26 |