Inventor
NAKAMURA SHIGEKAZU
JP14 patents
⚠️ This page may combine multiple inventors who share the name “NAKAMURA SHIGEKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
COPAL CO LTD
10 patentsUS5775791AJul 7, 1998
Surface emission apparatus
COPAL CO LTD200 citations98
US5073710ADec 17, 1991
Optical displacement detector including a displacement member's surface having a diffractive pattern and a holographic lens pattern
COPAL CO LTD68 citations96
US4984474AJan 15, 1991
Torque sensor
COPAL CO LTD111 citations95
US5253526AOct 19, 1993
Capacitive acceleration sensor with free diaphragm
COPAL CO LTD37 citations92
US4616281AOct 7, 1986
Displacement detecting apparatus comprising magnetoresistive elements
COPAL CO LTD38 citations92
US4603365AJul 29, 1986
Magnetic detection apparatus
COPAL CO LTD38 citations92
US4470873ASep 11, 1984
Method of manufacturing magnetic sensor comprising at least two magnetoresistive elements
COPAL CO LTD45 citations92
US4425557AJan 10, 1984
Non-contact magnetic potentiometer
COPAL CO LTD42 citations92
US4395695AJul 26, 1983
Non-contact magnetic potentiometer
COPAL CO LTD34 citations92
US4646194AFeb 24, 1987
PG yoke position detecting apparatus
COPAL CO LTD0 citations50
YASKAWA DENKI SEISAKUSHO KK
3 patentsUS7362069B2Apr 22, 2008
Voltage source inverter control method
YASKAWA DENKI SEISAKUSHO KK7 citations68
US7521889B2Apr 21, 2009
Method of braking induction motor and control apparatus
YASKAWA DENKI SEISAKUSHO KK2 citations62
US7463005B2Dec 9, 2008
Method and device for sensorless vector control for AC motor
YASKAWA DENKI SEISAKUSHO KK6 citations62