Inventor

OKAWA TEPPEI

JP4 patents

Patents

4 patents

US6346179B1Feb 12, 2002

Gas sensor

NGK SPARK PLUG CO73 citations93

US6182498B1Feb 6, 2001

Oxygen sensor

NGK SPARK PLUG CO23 citations91

US6210552B1Apr 3, 2001

Oxygen sensor

NGK SPARK PLUG CO17 citations83

US4857275AAug 15, 1989

Thick-film gas-sensitive element

NGK SPARK PLUG CO12 citations72