Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7736406 | Vacuum cleaner | Hideaki Sakatani, Seiji Ishikawa, Atsushi Kitai | 2010-06-15 |
| 7306640 | Vacuum cleaner | Seiji Yamaguchi, Tomonori Kato, Masashi Okushima, Yuichi Shimizu, Tomomi Mitani +7 more | 2007-12-11 |