Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D536841 | Pet toilet seat | Satoshi Hirokawa | 2007-02-13 |
| D533974 | Pet toilet | Satoshi Hirokawa | 2006-12-19 |
| 4710699 | Electronic switching device | — | 1987-12-01 |
| 4704524 | Attachment for electronic switch | Akio Masaki, Yoshio Moriyasu, Kenji Ueda, Yasushi Matsuoka | 1987-11-03 |
| 4654471 | Electronic switch | Akio Masaki, Yoshio Moriyasu, Kenji Ueda | 1987-03-31 |
| 4638262 | Proximity switch with improved response time and antimagnetic field circuitry | — | 1987-01-20 |
| 4515404 | Seat sliding device | Shinichi Nishimura, Saburo Mizuno | 1985-05-07 |
| 4513257 | Proximity switch with oppositely polarized coils | Kenji Ueda | 1985-04-23 |
| 4414478 | Electronic switching device | Kenji Ueda | 1983-11-08 |