Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12422175 | Refrigerant cycle system | Eiji Kumakura, Takuro Yamada, Atsushi Yoshimi, Ikuhiro Iwata | 2025-09-23 |
| 12174112 | Gas detector and leakage-gas detection system | Tomoyuki Haikawa, Kazuyuki Satou, Satoshi Wada, Masaki YUMOTO | 2024-12-24 |
| 12163707 | Refrigeration cycle apparatus and four-way valve | Takeru Miyazaki, Hiromune Matsuoka, Atsushi Yoshimi, Eiji Kumakura, Ikuhiro Iwata +1 more | 2024-12-10 |
| 12140358 | Refrigerant cycle system | Takuro Yamada, Eiji Kumakura, Atsushi Yoshimi, Ikuhiro Iwata | 2024-11-12 |
| 12092374 | Refrigerant cycle system | Takuro Yamada, Atsushi Yoshimi, Eiji Kumakura, Ikuhiro Iwata, Kazuhiro Furusho +4 more | 2024-09-17 |
| 11280525 | Refrigeration apparatus | Tomoyuki Haikawa, Shigeharu Taira | 2022-03-22 |
| 11274845 | Method of searching for refrigerant leak location | Tomoyuki Haikawa, Shigeharu Taira | 2022-03-15 |
| 11268718 | Refrigeration apparatus | Tomoyuki Haikawa, Shigeharu Taira | 2022-03-08 |
| 11131470 | Indoor unit for refrigeration apparatus | Tomoyuki Haikawa, Shigeharu Taira | 2021-09-28 |
| 10794615 | Refrigeration apparatus | Tomoyuki Haikawa, Shigeharu Taira | 2020-10-06 |
| 10281184 | Air conditioner | Tomoyuki Haikawa | 2019-05-07 |
| 9546806 | Air conditioner | Tomoyuki Haikawa, Youichi Ohnuma | 2017-01-17 |
| 9140370 | Channel switching valve and heat pump system using the same | Takeshi Kannoo, Kouji Shibaike | 2015-09-22 |