Issued Patents All Time
Showing 1–7 of 7 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 |
| 9061389 | Working unit | Minoru Ihara | 2015-06-23 |
| 8997625 | Hydraulic feed-rate control apparatus | Takahiro Murai, Minoru Ihara | 2015-04-07 |
| 8591153 | Pneumatic drilling device | Minoru Ihara | 2013-11-26 |