Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6158230 | Controller for air conditioner | — | 2000-12-12 |
| 6079219 | Air conditioner | — | 2000-06-27 |
| 5832735 | Control system for multiple-type air conditioner | Satoshi Matsumoto | 1998-11-10 |
| 5775116 | Defrosting control method for air conditioner | Satoshi Matsumoto, Masayuki Shimizu | 1998-07-07 |
| 5735135 | Air conditioner | Junichi Goya, Yasunori Ohama, Hideo Maeda, Kiyoshi Kobayashi, Toshimasa Tsukui +1 more | 1998-04-07 |
| 5513796 | Dual control device of an air conditioner | Satoshi Matsumoto, Masayuki Shimizu | 1996-05-07 |
| 5379606 | Control device for an air conditioner | Masayuki Shimizu, Minoru Kato, Tetsuo Inoue, Masakazu Hosoya | 1995-01-10 |
| 5227981 | Initial process system after cutoff of power source and process system at the time of cutoff of power source | Masakazu Hosoya, Masayuki Shimizu | 1993-07-13 |
| 5156010 | Defrost control method for a heat pump | Tetsuo Inoue, Masayuki Shimizu, Kikuo Takekawa, Yuji Tsuchiyama | 1992-10-20 |
| 5113665 | Control device for air conditioner | — | 1992-05-19 |
| 4841738 | Method and apparatus of automatically switching between cooling and heating modes of an air conditioner | Katsumasa Minakawa, Masayuki Shimizu | 1989-06-27 |
| 4698744 | Inverter apparatus | Kiyoshi Itani, Hisashi Tokizaki, Tomohide Funagoshi, Nobuo Ohtsuka, Katsuhiro Ohkubo | 1987-10-06 |