Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4570272 | Toilet bowl flushing device | Shojiro Kawaguchi | 1986-02-18 |
| 4401929 | Control apparatus of automatic door | Yukio Yamamura, Koichi Ishino, Masayuki Nakamura | 1983-08-30 |