Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5664935 | Vacuum pump | Akira Nishiuchi, Masahiro Mase, Noboru Matsumura, Takashi Nagaoka | 1997-09-09 |
| 5613843 | Package-type screw compressor | Seiji Tsuru, Shinichi Hirose, Junji Okita, Tadashi Kaneki | 1997-03-25 |