Issued Patents 2022
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11452424 | Electric vacuum cleaner apparatus | Tsuyoshi Sato, Masatoshi Tanaka | 2022-09-27 |
| 11406236 | Electric vacuum cleaning apparatus | Masatoshi Tanaka, Satoshi Goto | 2022-08-09 |
| 11311164 | Electrical equipment using battery as power supply and vacuum cleaner | Yusuke Abe, Naoko Shinagawa, Takayoshi Shimizu, Fumiki Mano | 2022-04-26 |
| 11272820 | Electric vacuum cleaner device | Tsuyoshi Sato, Masatoshi Tanaka, You Torizawa, Hiromitsu Ichikawa, Hiromitsu Murata +2 more | 2022-03-15 |