Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7162839 | Non-slip material | Shunji Ohno, Kazumichi Iwasa, Norio Nakajima, Masanori Tsuji, Tsuyoshi Doi +3 more | 2007-01-16 |
| 7021109 | Method and apparatus for manufacturing slip stopper | Shunji Ohno, Kazumichi Iwasa, Norio Nakajima, Masanori Tsuji, Tsuyoshi Doi +2 more | 2006-04-04 |