Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6009568 | Opening-closing device of western style toilet seat and seat cover | — | 2000-01-04 |
| 5842235 | Opening/closing device for opening/closing bodies | — | 1998-12-01 |
| D402018 | Opening and closing device for the seat or the seat lid of a toilet bowl | — | 1998-12-01 |
| 5724683 | Hinge mechanism for supporting the seat or the seat lid of a toilet bowl | Akira Sorimachi | 1998-03-10 |