Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8814481 | Oil supply device for hole cutting apparatus | Shohei Omi | 2014-08-26 |
| 8491235 | Rail drilling machine | Shohei Omi | 2013-07-23 |
| 7648315 | Cutter holder | Shohei Omi | 2010-01-19 |
| 7632049 | Hole cutter | Shohei Omi | 2009-12-15 |
| 6314853 | Portable cutting apparatus | Shohei Omi | 2001-11-13 |