Inventor

SAWAMOTO HIROYUKI

JP4 patents

⚠️ This page may combine multiple inventors who share the name “SAWAMOTO HIROYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TOYOTA MOTOR CO LTD

2 patents

US5088281AFeb 18, 1992

Method and apparatus for determining deterioration of three-way catalysts in double air-fuel ratio sensor system

TOYOTA MOTOR CO LTD111 citations95

US5657734AAug 19, 1997

Fuel evaporative-gas emission preventing apparatus

TOYOTA MOTOR CO LTD37 citations90

ALPS ELECTRIC CO LTD

2 patents

US6583826B1Jun 24, 2003

Intermediate frequency circuit in television tuner with large attenuation of audio if signal in adjacent channel

ALPS ELECTRIC CO LTD10 citations72

US7129994B2Oct 31, 2006

Television tuner having level of harmonics of oscillation signal suppressed low

ALPS ELECTRIC CO LTD8 citations70