Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6979794 | Wire cutting device of wire electric discharge machine | Akiyoshi Kawahara | 2005-12-27 |
| 6844517 | Power supply device for electric discharge machine | Masao Murai, Akiyoshi Kawahara, Akihiro Sakurai | 2005-01-18 |