Inventor

Hiroyuki Haga

Inventor

Numazu, JP

Overview

1988–2021

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 23 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

Y02Tprimary

Y02TClimate change mitigation technologies related to transportation15%

F02DControlling combustion engines13%

F02MSupplying combustion engines in general with combustible mixtures or constituents thereof10%

F02BInternal-combustion piston engines7%

F01LCyclically operating valves for machines or engines4%

H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems4%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications4%

B60KArrangement or mounting of propulsion units or of transmissions in vehicles3%

B60LPropulsion of electrically-propelled vehicles3%

B60WConjoint control of vehicle sub-units of different type or different function3%

PatentTitleYear

11,121,793Base station device, and mobile station device2021 10,619,587Control device for internal combustion engine2020 10,601,308Power factor improving converter, and power supply device including power factor improving converter2020 10,415,514Control device for internal combustion engine and control method for internal combustion engine2019 10,247,118Control apparatus for internal combustion engine2019 9,822,672'Internal combustion engine'2017 9,759,136'Variable valve operating system'2017 9,464,541'Control device of internal combustion engine and variable valve device of internal combustion engine'2016 8,555,615'Internal combustion engine exhaust gas control system and control method of internal combustion engine exhaust gas control system'2013 8,494,698'Hybrid system control apparatus and hybrid system control method'2013 8,291,697'Internal combustion engine control device'2012 8,196,404'Exhaust gas recirculation system for internal combustion engine and method for controlling the same'2012 8,051,659'Control apparatus for internal combustion engine and method for controlling the same'2011 7,854,168'Thickness measuring device for vessel steel plate'2010 7,513,161'Device for measuring thickness of vessel steel plate'2009 7,221,208'Switching circuit'2007 6,984,966'Switching power supply'2006 6,678,224'Tracking error balance adjustment circuit and a current control circuit used for an optical disk playback apparatus, and an optical disk playback apparatus including the same'2004 6,587,360'Polyphase rectifying apparatus having single-phase rectifiers controlled by common control signal'2003 6,504,799'Tracking error balance adjustment circuit and a current control circuit used for an optical disk playback apparatus, and an optical disk playback apparatus including the same'2003 5,451,900'Pulse width modulation circuit'1995 5,189,349'Drive circuit for multi-phase brushless DC motor including drive current detector'1993 4,733,162'Thermal shutoff circuit'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–2004Patents assigned to TOSHIBA KK (5)· patent assignee history

1988–2021Based in Tokyo, JP· patent location history

2003–2020Based in Hanno, JP· patent location history

2009–2010Based in Yokohama, JP· patent location history

2011–2020Patents assigned to TOYOTA MOTOR CO LTD (11)· patent assignee history

2011–2013Based in Susono, JP· patent location history

2012–2013Patents assigned to HAGA HIROYUKI (4)· patent assignee history

2012–2013Patents assigned to MATSUMOTO ISAO (4)· patent assignee history

2012–2013Patents assigned to MURATA HIROKI (4)· patent assignee history

2016–2020Based in Numazu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
TOYOTA MOTOR CO LTD	11	2011–2020
TOSHIBA KK	5	1988–2004
HAGA HIROYUKIself	4	2012–2013
MATSUMOTO ISAO	4	2012–2013
MURATA HIROKI	4	2012–2013

Locations

Location	Patents	Span
Numazu, JP	6	2016–2020
Susono, JP	5	2011–2013
Tokyo, JP	3	1988–2021
Hanno, JP	2	2003–2020
Yokohama, JP	2	2009–2010