Issued Patents All Time
Showing 76–81 of 81 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7655299 | Surface-coated cutting tool made of hard metal and manufacturing method for same | Tomoyuki Masuno, Akira Osada, Eiji Nakamura | 2010-02-02 |
| 5842846 | Hermetic type compressor having an oil feed part | Hirotsugu Fukuoka, Hiroshi Matsunaga, Shinji Fujiwara | 1998-12-01 |
| 5685703 | Hermetically sealed rotary compressor having an oil supply passage to the compression compartment | Hirotsugu Fukuoka, Hiroshi Matsunaga, Shigeru Muramatsu | 1997-11-11 |
| 5607291 | Closed compressor | Hiroshi Matsunaga, Shigeru Muramatsu, Shinji Fujiwara | 1997-03-04 |
| 5545021 | Hermetically sealed rotary compressor having an oil supply capillary passage | Hirotsugu Fukuoka, Hiroshi Matsunaga, Shigeru Muramatsu | 1996-08-13 |
| 5518381 | Closed rotary compressor | Hiroshi Matsunaga, Shinji Fujiwara, Hirotsugu Fukuoka, Yasuhiko Sano | 1996-05-21 |