Issued Patents 2004
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6824367 | Multi-stage compression type rotary compressor and a setting method of displacement volume ratio for the same | Kazuaki Fujiwara, Haruhisa Yamasaki, Yoshio Watabe, Kentaro Yamaguchi, Noriyuki Tsuda +2 more | 2004-11-30 |
| 6748754 | Multistage rotary compressor and refrigeration circuit system | Noriyuki Tsuda, Haruyuki Yamasaki, Kazuya Sato, Masaya Tadano | 2004-06-15 |
| 6732542 | Defroster of refrigerant circuit and rotary compressor | Haruhisa Yamasaki, Masaya Tadano, Kazuya Sato, Dai Matsuura, Takayasu Saito | 2004-05-11 |
| 6692242 | Multi-cylinder rotary compressor | Akira Hashimoto, Midori Futakawame, Masazumi Sakaniwa, Hiroyuki Sawabe | 2004-02-17 |
| 6679688 | Reed valve restriction plate with anti-sticking means | Takashi Sato, Yoshiaki Hiruma | 2004-01-20 |
| 6676393 | Multi-cylinder rotary compressor | Akira Hashimoto, Midori Futakawame, Masazumi Sakaniwa, Hiroyuki Sawabe | 2004-01-13 |