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 |
| 6536073 | Electric vacuum cleaner | Hiroyuki Uratani, Yoshiaki Ohnishi, Masaki Shibuya, Kazuma Suo, Saburo Kajikawa | 2003-03-25 |