Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7386895 | Opening/closing device for toilet seat or toilet lid, and transmission unit for the device | Ryosuke Hayashi, Satoshi Kato, Kenji Hashidume | 2008-06-17 |
| 7293297 | Automatic toilet seat or toilet cover lifting and lowering device | Ryosuke Hayashi, Hiroomi Miyamoto, Kenji Hashidume | 2007-11-13 |
| 7275626 | Damper device | Eiji Fukuzawa, Takayuki Tomura, Naohisa Tanaka, Ryosuke Hayashi, Seiichiro Inoue +1 more | 2007-10-02 |