Inventor
NAGAOKA AKIRA
JP4 patents
Patents
4 patentsUS4970384ANov 13, 1990
Optical sensor for detecting distance to an object including anamorphic light receiving lens
MATSUSHITA ELECTRIC WORKS LTD23 citations90
US4876446AOct 24, 1989
Optical sensor with optical interconnection board
MATSUSHITA ELECTRIC WORKS LTD35 citations90
US4656462AApr 7, 1987
Object detecting apparatus including photosensors for restricted detection area
MATSUSHITA ELECTRIC WORKS LTD51 citations90
US5138302AAug 11, 1992
Photoelectric, scattered light smoke detector
MATSUSHITA ELECTRIC WORKS LTD32 citations89