Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6543178 | Intra-line fishing rod | Shunji Sunaga, Shoichi Koganei, Masaru Akiba, Tomoyoshi Tsurufuji, Toyoaki Takimoto +1 more | 2003-04-08 |
| 6408562 | Intra-line fishing rod | Shunji Sunaga, Shoichi Koganei, Masaru Akiba, Tomoyoshi Tsurufuji, Toyoaki Takimoto +1 more | 2002-06-25 |