Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11317775 | Dust-collecting device and vacuum cleaner | Nobuhide Okitsu, Akiyoshi Tanaka, Fumiki Mano, Mai Oikawa, Satoshi Ohshita | 2022-05-03 |
| 7496988 | Electric vacuum cleaner provided with a dust separation section for separating sucked dust and dust collecting section for collecting the dust | Ritsuo Takemoto, Masatoshi Tanaka, Hiroshi Yokoyama, Hitoshi Suzuki, Yoshihiro Tsuchiya +4 more | 2009-03-03 |
| 7337492 | Vacuum cleaner having a noise blocking member facing an intake vent of a motor fan | Mai Matsuno, Masatoshi Tanaka, Kenji Harada, Ritsuo Takemoto | 2008-03-04 |
| 7198656 | Vacuum cleaner | Ritsuo Takemoto, Masatoshi Tanaka, Hiroshi Yokoyama, Hitoshi Suzuki, Yoshihiro Tsuchiya +5 more | 2007-04-03 |