Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10300542 | Wire electrical discharge machining apparatus and method of manufacturing semiconductor wafer | Takashi Hashimoto, Takashi Yuzawa | 2019-05-28 |
| 10220459 | Wire electric discharge machining apparatus and manufacturing method for thin plate and manufacturing method for semiconductor wafer using wire electric discharge machining apparatus | Atsushi Itokazu, Takashi Hashimoto | 2019-03-05 |
| 9950379 | Wire electric discharge machining apparatus | Tatsushi Sato, Kazuhiko Fukushima | 2018-04-24 |
| 9833854 | Workpiece retainer, wire electric discharge machining device, thin-plate manufacturing method, and semiconductor-wafer manufacturing method | Takashi Yuzawa, Tatsushi Sato, Atsushi Itokazu | 2017-12-05 |
| 9707638 | Wire electric-discharge machining device, wire electric-discharge machining method, thin-plate manufacturing method, and semiconductor wafer manufacturing method | Atsushi Itokazu | 2017-07-18 |
| 9643270 | Wire discharge-machining apparatus with parallel cutting wires | Tatsushi Sato | 2017-05-09 |
| 9387548 | Wire-cut electrical discharge machining apparatus and semiconductor wafer manufacturing method | Tatsushi Sato, Kazuhiko Fukushima | 2016-07-12 |
| 9089916 | Wire electric discharge machining apparatus, wire electric discharge machining method, thin plate manufacturing method, and semiconductor wafer manufacturing method | Atsushi Itokazu, Tatsushi Sato, Takashi Yuzawa, Kazuhiko Fukushima | 2015-07-28 |
| 9050672 | Wire discharge-machining apparatus with parallel cutting wires | Tatsushi Sato | 2015-06-09 |
| 8829383 | Wire electric discharge machine and wire electric discharge machining method | Yasuo Onodera, Tamayo Ohata, Tatsushi Sato, Takashi Yuzawa, Atsushi Taneda | 2014-09-09 |
| 8664559 | Electrical discharge machine | Takayuki Nakagawa, Yoshihito Imai | 2014-03-04 |
| 7518081 | Electric discharge machining apparatus | Takayuki Nakagawa, Yoshihito Imai | 2009-04-14 |
| 6881918 | Electric discharge machining apparatus | Yoshihito Imai, Takayuki Nakagawa | 2005-04-19 |
| 6788019 | Electric discharge machining device and electric discharge machining method | Yoshihito Imai, Takayuki Nakagawa | 2004-09-07 |
| 6781080 | Wire electric discharge machine with stored discharge energy threshold function | Tatsushi Sato, Seiji Satou, Yoshikazu Ukai | 2004-08-24 |
| 6621033 | Electrical discharge machining apparatus | Tatsushi Sato, Yoshihito Imai, Takayuki Nakagawa | 2003-09-16 |
| 6622139 | Information retrieval apparatus and computer-readable recording medium having information retrieval program recorded therein | Takehiro Nakayama, Hiroki Kato | 2003-09-16 |
| 6614234 | Electric discharge machine | Yoshihito Imai, Takuji Magara, Akihiro Goto | 2003-09-02 |
| 6147500 | EDM with jump motion detecting reactive force | Yoshihito Imai, Takuji Magara, Akihiro Goto | 2000-11-14 |
| 6086684 | Electric discharge surface treating method and apparatus | Nagao Saito, Naotake Mohri, Yoshiki Tsunekawa, Kohei Shimamoto, Akihiro Goto +2 more | 2000-07-11 |
| 5973498 | EDM with jump motion detecting reactive force | Yoshihito Imai, Takuji Magara, Akihiro Goto | 1999-10-26 |
| 5919380 | Three-dimensional electrical discharge machining method and apparatus utilizing NC control | Takuji Magara, Akihiro Goto, Yoshihito Imai, Tomoko Sendai, Tatsushi Sato | 1999-07-06 |
| 5837957 | Electric discharge machining apparatus | Tatsushi Sato, Yoshihito Imai, Tomoko Sendai, Takashi Yuzawa, Takuji Magara | 1998-11-17 |
| 5804789 | Surface treating method and apparatus by electric discharge machining | Nagao Saito, Naotake Mouri, Yoshihito Imai, Takuji Magara, Akihiro Goto | 1998-09-08 |
| 5524067 | Image processing device employing coding with edge information preserved | Toshi Minami, Osamu Nakamura | 1996-06-04 |