Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5664935 | Vacuum pump | Masahiro Mase, Noboru Matsumura, Katsuaki Kikuchi, Takashi Nagaoka | 1997-09-09 |
| 5536148 | Turbo vacuum pump | Masahiro Mase, Noboru Matsumura, Katsuaki Kikuchi, Takashi Nagaoka, Seiji Sakagami | 1996-07-16 |
| 5501583 | Turbo vacuum pump | Takashi Nagaoka, Shinjiro Ueda, Seiji Sakagami, Hirofumi Sakurai | 1996-03-26 |
| 5380171 | Turbo vacuum pump | Takashi Nagaoka, Shinjiro Ueda, Seiji Sakagami, Hirofumi Sakurai | 1995-01-10 |
| 4904155 | Vacuum pump | Takashi Nagaoka, Ichiro Gyobu, Kimio Muramatsu, Keiji Ueyama, Masahiro Mase +1 more | 1990-02-27 |