Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7396390 | Oxygen enrichment apparatus | Nobuhiro Hayashi, Toshiyuki Yoshida, Yasuo Oshima, Yoshitaka Murata, Teruyuki Yasuda | 2008-07-08 |
| 7131164 | Vacuum cleaner and suction nozzle employed therein | Hiroyuki Uratani, Masakuni Soejima, Koichi Fujita, Masaki Shibuya, Hidetoshi Imai +2 more | 2006-11-07 |