Inventor
KATAYAMA YASUNORI
JP21 patents
⚠️ This page may combine multiple inventors who share the name “KATAYAMA YASUNORI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
20 patentsUS5333240AJul 26, 1994
Neural network state diagnostic system for equipment
HITACHI LTD234 citations99
US4736296AApr 5, 1988
Method and apparatus of intelligent guidance in natural language
HITACHI LTD250 citations98
US5430642AJul 4, 1995
Control device for controlling a controlled apparatus, and a control method therefor
HITACHI LTD117 citations97
US5109509AApr 28, 1992
System for processing natural language including identifying grammatical rule and semantic concept of an undefined word
HITACHI LTD232 citations96
US5930136AJul 27, 1999
Control device for controlling a controlled apparatus, and a control method therefor
HITACHI LTD39 citations92
US5541832AJul 30, 1996
Control device for controlling a controlled apparatus, and a control method therefor
HITACHI LTD39 citations92
US5331565AJul 19, 1994
Control system having optimality decision means
HITACHI LTD21 citations92
US5303385AApr 12, 1994
Control system having optimality decision means
HITACHI LTD23 citations92
US4983875AJan 8, 1991
Actuator
HITACHI LTD28 citations92
US4367811AJan 11, 1983
Elevator control system
HITACHI LTD40 citations92
US4350225ASep 21, 1982
Elevator control system
HITACHI LTD43 citations92
US5812389ASep 22, 1998
Power distribution control system
HITACHI LTD33 citations91
US5414619AMay 9, 1995
Method and device for controlling object to be controlled using learning function
HITACHI LTD46 citations90
US5375448ADec 27, 1994
Non-interference control method and device
HITACHI LTD21 citations90
US4378059AMar 29, 1983
Abnormal elevator speed detector
HITACHI LTD33 citations90
US4387436AJun 7, 1983
Method and apparatus for detecting elevator car position
HITACHI LTD23 citations80
US4553640ANov 19, 1985
Controller for elevator
HITACHI LTD17 citations73
US6073054AJun 6, 2000
Information processing system
HITACHI LTD14 citations72
US5553003ASep 3, 1996
Distributed control system
HITACHI LTD14 citations71
US4661757AApr 28, 1987
Controller for AC elevator
HITACHI LTD6 citations57