Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5829623 | Easily openable can lid | Hideo Otsuka, Hiroyuki Terasawa, Ichio Otsuka, Sunao Morishita | 1998-11-03 |
| 5287718 | Curl forming method for a can end | — | 1994-02-22 |
| 4815626 | Pull-tab for easy-to-open container lid | — | 1989-03-28 |
| 4557397 | Pull tab for readily openable can lid | — | 1985-12-10 |