AK

Akiyoshi Kawahara

FA Fanuc: 30 patents #70 of 1,735Top 5%
📍 Yamanashi, JP: #109 of 1,957 inventorsTop 6%
Overall (All Time): #123,832 of 4,157,543Top 3%
30
Patents All Time

Issued Patents All Time

Showing 1–25 of 30 patents

Patent #TitleCo-InventorsDate
D998661 Wire electric discharge machine Yoshinori Makino, Hisanori KOUDA 2023-09-12
10751820 Wire electrical discharge machine with deterioration detection function for feeder Tomoaki Matsunaga 2020-08-25
10639735 Wire electrical discharge machine Tomoyuki Furuta, Yasuo Nakashima 2020-05-05
10512980 Wire electrical discharge machining system and relative positional relationship calculating method Masashi Masuda 2019-12-24
10376975 Wire electric discharge machine with tension monitoring function Masashi Masuda, Yasuo Nakashima 2019-08-13
10315263 Wire electric discharge machine operating with constant inter-pole distance Yasuo Nakashima 2019-06-11
10265790 Wire electric discharge machine having function of cleaning inside of machining tank Tomoaki Matsunaga, Yasuo Nakashima 2019-04-23
10220458 Machining power supply device for electric discharge machine Yasuo Nakashima 2019-03-05
10124432 Electrical discharge machine Masashi Masuda, Yasuo Nakashima 2018-11-13
10086458 Electrical discharge machine of which axis feeding properties are changeable Yasuo Nakashima 2018-10-02
9987698 Wire electric discharge machine having shaft feed control system discriminating function Tomoyuki Furuta 2018-06-05
9950378 Wire electric discharge machine Tomoyuki Furuta, Shinji Yoda, Yasuo Nakashima 2018-04-24
9815132 Wire electric discharge machine Yasuo Nakashima, Yasuo Hasegawa 2017-11-14
9744608 Wire electric discharge machine Hiroyuki Furukawa 2017-08-29
9459611 Wire electric discharge machine having peak current compensation function Hiroyuki Furukawa 2016-10-04
9314859 Contact detection apparatus for wire electrical discharge machine with capability to vary applied gap voltage Tomoaki Matsunaga, Yushi Takayama 2016-04-19
9233429 Wire-cut electric discharge machine having function of detecting upper surface of workpiece Hiroyuki Furukawa 2016-01-12
9126277 Power supply device for wire electric discharge machine capable of suppressing wire electrode consumption Tomoaki Matsunaga 2015-09-08
8975554 Wire electric discharge machine capable of detecting machining state Masao Murai, Tomoyuki Furuta 2015-03-10
8680422 Wire electrical discharge machine that adjusts flow rate of working fluid based on machining state Masayuki Yoshida 2014-03-25
8432116 Torque motor driving device for wire cut electrical discharge machines Tomoyuki Furuta, Masao Murai 2013-04-30
7282660 Machining fluid level detection device for wire cut electrical discharge machines Tomoyuki Furuta 2007-10-16
7148442 Power supply device for electric discharge machining Masao Murai 2006-12-12
7054712 Wire contact/noncontact boundary position detecting apparatus of wire cut discharge machine Masao Murai, Akihiro Sakurai, Yasuo Nakashima 2006-05-30
6979794 Wire cutting device of wire electric discharge machine Yasuo Nakashima 2005-12-27