Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7025798 | Tabletop-type air cleaner | — | 2006-04-11 |
| 6953555 | Diesel particulate removing apparatus | — | 2005-10-11 |
| 6506238 | Electric dust collecting unit | — | 2003-01-14 |
| 6368392 | Electric dust collecting unit | Shigemitsu Ohtake | 2002-04-09 |
| 4547129 | Air stream generating apparatus | — | 1985-10-15 |