Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7140846 | Vacuum pump having main and sub pumps | Shinya Yamamoto, Satoru Kuramoto, Osamu Uchiyama, Daisuke Sato, Masahiro Kawaguchi +3 more | 2006-11-28 |
| 7108492 | Roots pump | Shinya Yamamoto, Mamoru Kuwahara, Nobuaki Hoshino | 2006-09-19 |