Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9572406 | Waterproof slide fastener | Ryo Tanaka, Makoto Takayama, Ryo Mikuma | 2017-02-21 |
| 9055790 | Slide fastener | Ryo Tanaka, Yutaka Tominaga, Ryo Mikuma | 2015-06-16 |
| 8938863 | Fastener stringer and slide fastener | Yoshimichi Yamakita, Yasushi Yamamoto, Nobuhiro Murai | 2015-01-27 |
| D648246 | Bottom end stop for slide fastener | Ryo Mikuma, Shunji Akashi | 2011-11-08 |
| D643778 | Slide fastener | Ryo Mikuma, Shunji Akashi | 2011-08-23 |