Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10918171 | Copper alloy fastener element and slide fastener | Takanori Kumei, Atsushi Ogihara, Chikako Hiromi, Yoshio Taira, Muneyoshi Yokota +1 more | 2021-02-16 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10918171 | Copper alloy fastener element and slide fastener | Takanori Kumei, Atsushi Ogihara, Chikako Hiromi, Yoshio Taira, Muneyoshi Yokota +1 more | 2021-02-16 |