Inventor
SHIMABUKURO HAJIME
JP4 patents
Patents
4 patentsUS4457598AJul 3, 1984
Reflector and method for manufacturing the same
NHK SPRING CO LTD23 citations81
US4457587AJul 3, 1984
Reflector and method for manufacturing the same
NHK SPRING CO LTD26 citations81
US4431268AFeb 14, 1984
Reflector and method for manufacturing the same
NHK SPRING CO LTD15 citations72
US4136079AJan 23, 1979
Urea compound having carboxylate radical and method for producing the same
NHK SPRING CO LTD6 citations57