Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7306640 | Vacuum cleaner | Yoshiki Kuroki, Seiji Yamaguchi, Tomonori Kato, Masashi Okushima, Yuichi Shimizu +7 more | 2007-12-11 |
| 7047593 | Vacuum cleaner capable of compressing dirt | Hidenori Kitamura, Saburo Kajikawa, Masakazu Onda, Seiji Ishikawa, Yasunori Tsuzaki +3 more | 2006-05-23 |