Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8277207 | Oil supply method of two-stage screw compressor, two-stage screw compressor applying the method, and method of operating refrigerating machine having the compressor | Takayuki Kishi, Kazuya Yamada, Toshiyuki Sakaguchi | 2012-10-02 |
| 7722346 | Oil supply method of two-stage screw compressor, two-stage screw compressor applying the method, and method of operating refrigerating machine having the compressor | Takayuki Kishi, Kazuya Yamada, Toshiyuki Sakaguchi | 2010-05-25 |