Inventor
KAMEYAMA MASAYOSHI
JP5 patents
Patents
5 patentsUS4726643AFeb 23, 1988
Optical star coupler and method for manufacturing the same
HITACHI LTD34 citations91
US4842359AJun 27, 1989
Optical star coupler and method of manufacturing the same
HITACHI LTD15 citations81
US4057845ANov 8, 1977
Group control system for visual information processing
HITACHI LTD8 citations73
US4132939AJan 2, 1979
Driving signal control circuit
HITACHI LTD7 citations72
US4044311AAug 23, 1977
Feature extraction system for extracting a predetermined feature from a signal
HITACHI LTD3 citations57