SN

Shigekazu Nagai

SM Smc: 134 patents #2 of 737Top 1%
SA Showa Aluminum: 1 patents #122 of 253Top 50%
SK Showa Denko K.K.: 1 patents #940 of 1,736Top 55%
Overall (All Time): #7,519 of 4,157,543Top 1%
137
Patents All Time

Issued Patents All Time

Showing 1–25 of 137 patents

Patent #TitleCo-InventorsDate
8962163 Aluminum alloy for anodization and aluminum alloy component Ryousuke Shimao 2015-02-24
7628727 Automatic speed reducing ratio-switching apparatus Ryuichi Masui 2009-12-08
7562594 Electric actuator capable of converting rotational motion to a linear motion Akio Saitoh, Toru Sugiyama, Masaki Miyahara 2009-07-21
7520191 Actuator Akio Saitoh, Masaki Imamura 2009-04-21
7510495 Automatic speed reducing ratio-switching apparatus Akio Saitoh, Ryuichi Masui, Masaki Imamura 2009-03-31
7448134 Method for producing actuator having guide-equipped frame Akio Saitoh, Masaru Saitoh 2008-11-11
7443121 Actuator control system Akio Saitoh, Toru Sugiyama, Ryuichi Masui, Takeshi Hirose, Masaki Miyahara 2008-10-28
7298108 Control system for electric actuator Takeshi Hirose 2007-11-20
7228751 Ball screw mechanism Ryuuichi Masui 2007-06-12
7220205 Automatic speed reducing ratio-switching apparatus Akio Saitoh, Ryuichi Masui, Masaki Imamura 2007-05-22
D543221 Electric cylinder with guide Akio Saitoh, Toru Sugiyama, Ryuichi Masui 2007-05-22
D542314 Electric cylinder with guide Akio Saitoh, Masaki Miyahara 2007-05-08
D540355 Electric cylinder with guide Akio Saitoh, Masaki Miyahara 2007-04-10
7181988 Actuator Akio Saitoh, Masaru Saitoh 2007-02-27
7159482 Electric actuator Akio Saitoh, Hiroshi Yumiba 2007-01-09
D531119 Vacuum generator Yoshiharu Ito, Yosuke Shirai 2006-10-31
7124657 Electric actuator and method of assembling the same Toru Sugiyama, Masahiko Someya 2006-10-24
7111835 Clamp apparatus Akio Saitoh, Motoshi Togasaki, Kazuyuki Oguma 2006-09-26
7109412 Cable structure Toru Sugiyama, Masahiko Someya 2006-09-19
D525194 Motor controller Akio Saitoh, Takeshi Hirose, Ryoichi Suzuki 2006-07-18
7066649 Actuator Akio Saitoh 2006-06-27
7055320 Actuator Akio Saitoh, Masaru Saitoh 2006-06-06
D520960 Vacuum equipment Yoshiharu Ito, Takashi Toyama 2006-05-16
D520959 Vacuum switch Yoshiharu Ito, Takashi Toyama 2006-05-16
7042187 Control apparatus for electric actuator Takeshi Hirose 2006-05-09