Issued Patents All Time
Showing 1–25 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12163707 | Refrigeration cycle apparatus and four-way valve | Takeru Miyazaki, Atsushi Yoshimi, Eiji Kumakura, Ikuhiro Iwata, Tomoatsu Minamida +1 more | 2024-12-10 |
| 12092374 | Refrigerant cycle system | Takuro Yamada, Atsushi Yoshimi, Eiji Kumakura, Ikuhiro Iwata, Kazuhiro Furusho +4 more | 2024-09-17 |
| 12066222 | Refrigeration cycle device | Eiji Kumakura, Ikuhiro Iwata, Kazuhiro Furusho, Ryusuke Fujiyoshi | 2024-08-20 |
| 12007150 | Refrigeration cycle device | Ikuhiro Iwata, Eiji Kumakura, Kazuhiro Furusho, Ryusuke Fujiyoshi | 2024-06-11 |
| 11976851 | Refrigeration cycle device | Ikuhiro Iwata, Eiji Kumakura, Kazuhiro Furusho, Ryusuke Fujiyoshi | 2024-05-07 |
| 11959667 | Refrigeration cycle device | Ikuhiro Iwata, Eiji Kumakura, Kazuhiro Furusho, Ryusuke Fujiyoshi | 2024-04-16 |
| 11739990 | Chiller with an outdoor unit transferring heat to an indoor unit using carbon dioxide | Ryuusuke Fujiyoshi, Kyou Tomikawa, Yoshihiko Hagiwara | 2023-08-29 |
| 11739995 | Refrigeration cycle device | Takuro Yamada, Atsushi Yoshimi, Eiji Kumakura, Ikuhiro Iwata, Takeru Miyazaki | 2023-08-29 |
| 11585568 | Drainage mechanism and air conditioning system including the same | Keita KITAGAWA, Akihiro Eguchi, Yoshito Matsuda, Tarou Yasumatsu, Takayoshi Yamamoto +2 more | 2023-02-21 |
| 11293670 | Chiller with an outdoor unit transferring heat to an indoor unit using carbon dioxide | Ryuusuke Fujiyoshi, Kyou Tomikawa, Yoshihiko Hagiwara | 2022-04-05 |
| 10247448 | Method of producing refrigeration with R1233zd | Kenichi Masaki, Md Anwar Hossain | 2019-04-02 |
| 9869498 | Refrigerant charging method for refrigeration device having carbon dioxide as refrigerant | Toshiyuki Kurihara | 2018-01-16 |
| 8844300 | Refrigerant pipe washing method, air conditioner updating method, and air conditioner | Kazuhide Mizutani, Atsushi Yoshimi, Manabu Yoshimi | 2014-09-30 |
| 8656729 | Air conditioning system with defrosting operation | Toshiyuki Kurihara | 2014-02-25 |
| 8479526 | Refrigerant charging method for refrigeration device having carbon dioxide as refrigerant | Toshiyuki Kurihara | 2013-07-09 |
| 8230691 | Air conditioner and air conditioner cleaning method | Toshiyuki Kurihara | 2012-07-31 |
| 8156752 | Air conditioning system | Toshiyuki Kurihara | 2012-04-17 |
| 7971451 | Air conditioner | Tomohiro Yabu, Norihiro Takenaka, Tetsuya Morizane | 2011-07-05 |
| 7971909 | Pipe joint, refrigeration device, heat pump hot water supply device, closing valve, water supply piping, method of connecting piping, and in-the field piping method | Haruo Nakata, Junichirou Tanaka | 2011-07-05 |
| 7752855 | Air conditioner with refrigerant quantity judging mode | Junichi Shimoda, Kenji Sato, Kazuhide Mizutani | 2010-07-13 |
| 7752861 | Outdoor unit of air conditioner | Hiroki Ishihara, Toshiaki Mukaidani, Tadashi Sao | 2010-07-13 |
| 7690209 | Refrigerant charging method in refrigeration system using carbon dioxide as refrigerant | Toshiyuki Kurihara | 2010-04-06 |
| 7647784 | Refrigeration device and method for detecting refrigerant amount of refrigeration device | Kazuhide Mizutani | 2010-01-19 |
| 7614246 | Air conditioning apparatus | Tomohiro Yabu, Jun Koizumi | 2009-11-10 |
| 7506518 | Refrigeration device and method for detecting refrigerant amount of refrigeration device | Kazuhide Mizutani | 2009-03-24 |