Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7798787 | Internal intermediate pressure multistage compression type rotary compressor, manufacturing method thereof and displacement ratio setting method | Haruhisa Yamasaki, Kazuya Sato, Masaya Tadano, Satoshi Imai, Akira Sugawara +1 more | 2010-09-21 |
| 7600986 | Filtering device for multistage compression type rotary compressor | Haruhisa Yamasaki, Kazuya Sato, Masaya Tadano, Satoshi Imai, Akira Sugawara +1 more | 2009-10-13 |
| 7520733 | Multistage compression type rotary compressor | Haruhisa Yamasaki, Kazuya Sato, Masaya Tadano, Satoshi Imai, Akira Sugawara +1 more | 2009-04-21 |
| 7131821 | Internal intermediate pressure multistage compression type rotary compressor, manufacturing method thereof and displacement ratio setting method | Haruhisa Yamasaki, Kazuya Sato, Masaya Tadano, Satoshi Imai, Akira Sugawara +1 more | 2006-11-07 |