Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D648246 | Bottom end stop for slide fastener | Masamichi Hasegawa, Shunji Akashi | 2011-11-08 |
| D643778 | Slide fastener | Masamichi Hasegawa, Shunji Akashi | 2011-08-23 |
| 7870649 | Waterproof slide fastener | Masahiro Kusayama | 2011-01-18 |