Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7337493 | Upright-type electric vacuum cleaner with detachable dust collector | Shuzo Ueyama, Shinichi Hagino, Jun Yoshida, Yoshihiro Mori | 2008-03-04 |
| 7171723 | Floor suction tool for electric vacuum cleaners | Toshinari Kobayashi, Yoshiaki Matsumoto | 2007-02-06 |
| 6732404 | Electric vacuum cleaner having exhaust air return feature | Nobuaki Takahashi | 2004-05-11 |