Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7810200 | Electric toothbrush | Norioki Fujimoto, Toru Kamimura | 2010-10-12 |
| 5664421 | Heat pump type air conditioner using circulating fluid branching passage | Ryouichi Katouno, Masahisa Ohtake | 1997-09-09 |
| 5400599 | Hot gas machine | Hiroshi Sekiya, Masahisa Otake, Ryouichi Katohno, Toshikazu Ishihara, Izumi Okamoto +2 more | 1995-03-28 |