Issued Patents 2016
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9333563 | Drilling work control method and drilling work device | Nobuhiko Kitamura, Takamichi Iwamoto, Koshirou Sakamoto | 2016-05-10 |
| 9308588 | Clamping device, clamping method, and hole drilling method | Minoru Ihara | 2016-04-12 |
| 9296048 | Clamp device of a drill and air drive drill | Minoru Ihara | 2016-03-29 |
| 9259793 | Clamping device for portable boring machine and portable air-drive-drilling machine with clamping device | Minoru Ihara | 2016-02-16 |