Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6517329 | Electromagnetic blower and two-passage air supply apparatus | Nobuyuki Nozawa, Akira Takanaka | 2003-02-11 |
| 6341943 | Blower | Giichiro Shimizu, Masaaki Tanabe, Hirokazu Nagai, Akira Takanaka | 2002-01-29 |
| 5042521 | Switching apparatus for suction system in a vacuum pump | — | 1991-08-27 |
| 4900338 | Gas separation/extraction apparatus for separating and extracting a desired gas from a gas mixture and a balance valve therefor | Haruki Nakao | 1990-02-13 |
| 4624608 | Pilot pin-locking device in drilling machines | Toshio Mikiya | 1986-11-25 |