Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7276099 | Electric vacuum cleaner | Shoji Hayashi, Yukiji Iwase, Yasuyuki Hiruta, Susumu Sato, Naofumi Kitagawa +4 more | 2007-10-02 |
| 7207083 | Electric vacuum cleaner | Shoji Hayashi, Yukiji Iwase, Yasuyuki Hiruta, Susumu Sato, Naofumi Kitagawa +4 more | 2007-04-24 |