Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8355237 | Ion generator | Kazuyoshi Onezawa, Yoshinari Fukada, Akira Goto | 2013-01-15 |
| 7408562 | Ion generating apparatus | — | 2008-08-05 |
| 5558122 | Electric signals supplying device in solenoid valve | Takahide Kawamura | 1996-09-24 |