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Inventor

YAMASAKI HIROFUMI

US11 patents
⚠️ This page may combine multiple inventors who share the name “YAMASAKI HIROFUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TOYOTA MOTOR CO LTD

5 patents
US5060618AOct 29, 1991

Method and apparatus for controlling torque variations in an internal combustion engine

TOYOTA MOTOR CO LTD20 citations73
US5058556AOct 22, 1991

Device for determining activated condition of an oxygen sensor

TOYOTA MOTOR CO LTD18 citations73
US5146885ASep 15, 1992

Air-fuel ratio control device for an engine

TOYOTA MOTOR CO LTD6 citations62
US5092297AMar 3, 1992

Air-fuel ratio control device for a vehicle engine

TOYOTA MOTOR CO LTD3 citations62
US5080074AJan 14, 1992

Air-fuel ratio control device of an internal combustion engine

TOYOTA MOTOR CO LTD0 citations41

FUJITSU TEN LTD

2 patents
US5190008AMar 2, 1993

Lean burn internal combustion engine

FUJITSU TEN LTD25 citations92
US5067465ANov 26, 1991

Lean burn internal combustion engine

FUJITSU TEN LTD13 citations73

SAKURA COLOR PROD CORP

1 patent
US5762694AJun 9, 1998

Ink composition for marking pen

SAKURA COLOR PROD CORP22 citations90

SHARP KK

1 patent
US6637637B2Oct 28, 2003

Reflow apparatus

SHARP KK9 citations71

FIJITSU TEN LIMITED

1 patent
US4870583ASep 26, 1989

Constant speed cruise control system of the duty ratio control type

FIJITSU TEN LIMITED19 citations69

YAMASAKI HIROFUMI

1 patent
US8088713B2Jan 3, 2012

Superconducting fault-current limiting element and the process for producing the same

YAMASAKI HIROFUMI2 citations47