KS

Keiji Sakamoto

FA Fanuc: 44 patents #31 of 1,735Top 2%
PA Panasonic: 22 patents #856 of 21,108Top 5%
RE Renesas Electronics: 10 patents #332 of 4,529Top 8%
Nichia: 10 patents #182 of 1,531Top 15%
FL Fujitsu Fanuc Limited: 2 patents #48 of 96Top 50%
GA Gates: 2 patents #99 of 351Top 30%
Sumitomo Electric Industries: 2 patents #9,741 of 21,551Top 50%
HI Hitachi: 1 patents #17,742 of 28,497Top 65%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
KA Kao: 1 patents #1,961 of 3,221Top 65%
TC Toyo Ink Mfg. Co.: 1 patents #227 of 499Top 50%
Overall (All Time): #15,798 of 4,157,543Top 1%
96
Patents All Time

Issued Patents All Time

Showing 76–96 of 96 patents

Patent #TitleCo-InventorsDate
4816734 Speed control system Mitsuo Kurakake 1989-03-28
4794628 Counter circuit with mislatching prevention Yukio Toyozawa 1988-12-27
4782275 Reference point return method Yukio Toyosawa 1988-11-01
4741685 Injection drive apparatus Yoshiharu Inaba, Fumio Mitoguchi, Masatoyo Sogabe 1988-05-03
4734025 Injection molding machine dwell control system Hideaki Kawamura, Nobuyuki Kiya 1988-03-29
4719400 Motor control apparatus Mitsuo Kurakake 1988-01-12
4703245 Method and apparatus for controlling permanent magnet synchronous motor by using pulse width modulation Toshio Kobayashi 1987-10-27
4703246 Control method and apparatus for synchronous motor Toshio Kobayashi 1987-10-27
4695780 Servomotor velocity control system Mitsuo Kurakake, Yukio Toyosawa 1987-09-22
4680518 Servomotor velocity control method Mitsuo Kurakake, Yukio Toyosawa 1987-07-14
4629958 Synchronous motor control system Mitsuo Kurakake 1986-12-16
4628240 Synchronous motor control system Mitsuo Kurakake, Jiro Kinoshita 1986-12-09
4623831 Rotor position sensing apparatus for motors Yukio Toyozawa 1986-11-18
4611159 AC motor control system Mitsuo Kurakake 1986-09-09
4573002 Servomotor control system Mitsuo Kurakake 1986-02-25
4547719 Synchronous motor drive apparatus Shinji Seki 1985-10-15
4521724 Apparatus for processing energy regenerated by an AC motor Yukio Toyozawa 1985-06-04
4477762 Servomotor control method and apparatus therefor Mitsuo Kurakake 1984-10-16
4458192 A.C. Motor drive apparatus Shinji Seki 1984-07-03
4449177 Discharging circuit for power source device with rectifier circuit Yoshinori Kozai, Katsuo Kobari 1984-05-15
4291265 Protective system for inverter circuit used in driving AC motors Shigeki Kawada, Hiroshi Ishida 1981-09-22