Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4982970 | Claw unit with paired separably connected claw elements | Atsushi Otani, Nobuyuki Morikawa, Shunsuke Otani | 1991-01-08 |
| 4680999 | Replaceable tool | Sadao Kojima, Hitoshi Abe, Fumio Ishizaki, Atusi Otani | 1987-07-21 |