Inventor
SEKIYA TOSHIFUMI
JP5 patents
Patents
5 patentsUS4825683AMay 2, 1989
Apparatus for evaluating an oxygen sensor
NGK SPARK PLUG CO8 citations72
US4620437ANov 4, 1986
Gas sensor
NGK SPARK PLUG CO11 citations72
US4532179AJul 30, 1985
Metal-ceramic bonded material
NGK SPARK PLUG CO15 citations72
US4415877ANov 15, 1983
Gas sensing element
NGK SPARK PLUG CO11 citations71
US4417228ANov 22, 1983
Gas component detector
NGK SPARK PLUG CO6 citations61