Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5664935 | Vacuum pump | Akira Nishiuchi, Masahiro Mase, Katsuaki Kikuchi, Takashi Nagaoka | 1997-09-09 |
| 5536148 | Turbo vacuum pump | Akira Nishiuchi, Masahiro Mase, Katsuaki Kikuchi, Takashi Nagaoka, Seiji Sakagami | 1996-07-16 |