Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4815882 | Turntable type binder assemblies | — | 1989-03-28 |
| 4693625 | Binder assemblies | — | 1987-09-15 |
| 4624595 | Ring type binder | — | 1986-11-25 |
| 4506416 | Paper clip | Kenzo Miyamoto | 1985-03-26 |
| 4449840 | Binder assembly of the ring type | — | 1984-05-22 |
| 4415290 | Binder assembly of the ring type | — | 1983-11-15 |