Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9510573 | Fishing rod with tubular fixing member | Eiji Sugaya, Michinori Ninomiya | 2016-12-06 |
| 6233862 | Interline fishing rod | Tomoyoshi Tsurufuji, Shoichi Koganei, Eiji Sugaya, Hiroshi Hashimoto, Masaru Akiba +2 more | 2001-05-22 |
| 6108959 | Interline fishing rod | Tomoyoshi Tsurufuji, Shoichi Koganei, Eiji Sugaya, Hiroshi Hashimoto, Masaru Akiba +2 more | 2000-08-29 |