Inventor
SHIKAGAWA TSUTOMU
JP18 patents
⚠️ This page may combine multiple inventors who share the name “SHIKAGAWA TSUTOMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FANUC CORP
17 patentsUS10848073B2Nov 24, 2020
Motor drive apparatus equipped with discharge circuit of capacitor of DC link
FANUC CORP5 citations72
US10306813B2May 28, 2019
Apparatus with motor drive device, to which motor drive device can be easily attached
FANUC CORP2 citations72
US10823783B2Nov 3, 2020
Motor drive device having failure detection function
FANUC CORP2 citations71
US10090791B2Oct 2, 2018
Machine learning apparatus and method for learning correction value in motor current control, correction value computation apparatus including machine learning apparatus and motor driving apparatus
FANUC CORP5 citations71
US10054640B2Aug 21, 2018
Motor driving device including dynamic braking circuit
FANUC CORP4 citations71
US9021873B2May 5, 2015
Brake abnormality diagnosis method and brake abnormality diagnosis device
FANUC CORP3 citations62
US10715059B2Jul 14, 2020
Motor driving device and failure detecting method
FANUC CORP1 citations60
US10148211B2Dec 4, 2018
Machine learning apparatus and method for learning correction value in motor current control, correction value computation apparatus including machine learning apparatus and motor driving apparatus
FANUC CORP1 citations51
US12525782B2Jan 13, 2026
Motor drive device provided with charging control unit
FANUC CORP0 citations50
US11424696B2Aug 23, 2022
Motor drive device
FANUC CORP0 citations50
US10922182B2Feb 16, 2021
Motor driving device and determination method
FANUC CORP0 citations50
US9933034B2Apr 3, 2018
Motor drive apparatus equipped with life prediction function for motor brake
FANUC CORP1 citations50
US10456932B2Oct 29, 2019
Conduction path structure of robot
FANUC CORP0 citations49
US9647581B2May 9, 2017
Motor drive having function of detecting failure in dynamic braking circuit
FANUC CORP1 citations48
US9050961B2Jun 9, 2015
Brake drive and control device for detecting short circuit failure of switching element
FANUC CORP0 citations41
US10300598B2May 28, 2019
Robot with daisy-chainable robot arm
FANUC CORP0 citations38
US10763765B2Sep 1, 2020
Brake control system and method of fault detection
FANUC CORP0 citations37