Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12292226 | Defrost system which utilizes electric heater for thermosiphon | Choiku Yoshikawa, Toshio KUTSUNA, Daiki Kayashima, Nobuo OOSUGA | 2025-05-06 |
| 11105564 | Plate stack and heat exchanger | Masato Takeda, Yasushi Tomiyama, Yuki Matsumoto | 2021-08-31 |
| 7818971 | CO2 cooling and heating apparatus and method having multiple refrigerating cycle circuits | Hiroshi Yamaguchi, Katsumi Fujima, Choiku Yoshikawa | 2010-10-26 |