Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7251950 | Heating/cooling system | Kenzo Matsumoto, Shigeya Ishigaki, Hiroshi Nishikawa | 2007-08-07 |
| 7228700 | Heating/cooling system | Kenzo Matsumoto, Hiroshi Nishikawa | 2007-06-12 |
| 6824367 | Multi-stage compression type rotary compressor and a setting method of displacement volume ratio for the same | Kenzo Matsumoto, Kazuaki Fujiwara, Haruhisa Yamasaki, Kentaro Yamaguchi, Noriyuki Tsuda +2 more | 2004-11-30 |