Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9486869 | Power supply device for electric discharge machining | Tomoyuki Furuta | 2016-11-08 |
| 8975554 | Wire electric discharge machine capable of detecting machining state | Akiyoshi Kawahara, Tomoyuki Furuta | 2015-03-10 |
| 8901448 | Electric discharge machine | Yasuo Arakawa, Tomoyuki Furuta | 2014-12-02 |
| 8735762 | Wire electric discharge machine capable of detecting machining state and determining average voltage in machining gap | Tomoyuki Furuta | 2014-05-27 |
| 8432116 | Torque motor driving device for wire cut electrical discharge machines | Tomoyuki Furuta, Akiyoshi Kawahara | 2013-04-30 |
| 7764601 | Switching between layer 2 switches as destination of IP packets from cards | — | 2010-07-27 |
| 7323654 | Electric discharge machining apparatus | Yasuo Nakashima | 2008-01-29 |
| 7148442 | Power supply device for electric discharge machining | Akiyoshi Kawahara | 2006-12-12 |
| 7054712 | Wire contact/noncontact boundary position detecting apparatus of wire cut discharge machine | Akiyoshi Kawahara, Akihiro Sakurai, Yasuo Nakashima | 2006-05-30 |
| 6844517 | Power supply device for electric discharge machine | Akiyoshi Kawahara, Akihiro Sakurai, Yasuo Nakashima | 2005-01-18 |
| 6130510 | Electric discharge machining power source unit for electric discharge machine | Masaki Kurihara, Akihiro Sakurai, Akiyoshi Kawahara | 2000-10-10 |
| 5600647 | Communication data switching apparatus and communication system with such switching apparatus | — | 1997-02-04 |
| 5521921 | Data communications method and apparatus | — | 1996-05-28 |
| 5355499 | Interruption circuit operable at a high speed | — | 1994-10-11 |
| 4787469 | Power steering system | Hiroshi Yoshida, Hajime Kozuka | 1988-11-29 |
| 4672325 | Clock frequency detection circuit | — | 1987-06-09 |
| 4586162 | Bit pattern check circuit | — | 1986-04-29 |