Inventor

Hiroaki Maeda

Inventor

Toyota, JP

Overview

38→

Patents

1976–2017

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 38 as inventor

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

F16Hprimary

F16HGearing30%

H03FAmplifiers15%

B60WConjoint control of vehicle sub-units of different type or different function10%

G03GElectrography7%

B60KArrangement or mounting of propulsion units or of transmissions in vehicles5%

H04BTransmission5%

F04BPositive-displacement machines for liquids3%

F16DCouplings for transmitting rotation3%

G01SRadio direction-finding3%

H04LTransmission of digital information, e.g. telegraphic communication3%

PatentTitleYear

9,590,827'Distortion compensation apparatus, wireless communication system, and distortion compensation method'2017 9,590,802'Navigation signal transmitter and method for generating navigation signal'2017 9,231,626'Wireless communication apparatus, Doherty amplifier, and method for controlling wireless communication'2016 9,091,969'Electrophotographic image forming apparatus'2015 8,909,112'Image forming apparatus having support members with predetermined electric potentials'2014 8,680,921'Amplifying apparatus, transmitter, and amplifying apparatus control method'2014 8,618,978'Position information providing system indoor transmitter and method for providing position information'2013 8,558,616'Amplifying apparatus'2013 8,406,660'Image forming apparatus including counter-rotating developing rollers and controlling method'2013 8,364,101'Amplifying device and transmitter apparatus'2013 8,320,799'Recycling image forming apparatus'2012 8,022,763'Amplifier failure detection apparatus'2011 7,786,797'Amplifying apparatus'2010 7,456,688'Signal extraction circuit and distortion-compensated amplifier incorporating the same'2008 7,456,687'Amplifier unit and method of detecting failure in the same'2008 7,080,445'Method for connecting printed circuit boards and connected printed circuit boards'2006 6,161,672'Shift-locking device for a vehicle transmission'2000 6,074,321'Transaxle assembly'2000 5,813,506'Direct-coupled clutch for torque converter'1998 5,720,375'Coupling device for use in differential gear devices'1998 5,637,048'Power train device'1997 5,139,122'Torque converter including a lock-up clutch'1992 4,885,960'Control system for automatic transmission'1989 4,860,873'Lubricating system for friction engaging means in transmission'1989 4,706,549'Oil pressure control system for power transmissions'1987 4,368,653'Hydromechanical transmission'1983 4,261,229'Automatic speed ratio control system for stepless transmission of automotive vehicles'1981 4,254,672'Control system for a stepless variable speed transmission'1981 4,253,347'Automatic speed ratio control system for stepless transmission of automotive vehicles'1981 4,232,568'Output split-type mechanical and hydraulic transmission'1980 4,229,998'Automatic speed ratio control system for stepless transmission of automotive vehicles'1980 4,220,059'Speed ratio control system for stepless transmission of vehicles'1980 4,184,385'Output split-type mechanical and hydraulic transmission'1980 4,170,153'Hydromechanical transmission'1979 4,131,035'Hydromechanical transmission'1978 3,978,772'Piston shoe for fluid pressure pump motor'1976 3,969,958'Output split type hydrostatic transmission'1976 3,943,715'Servo mechanism'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–2000Patents assigned to AISIN SEIKI (22)· patent assignee history

1976–2000Based in Toyota, JP· patent location history

2008–2017Patents assigned to FUJITSU LTD (9)· patent assignee history

2008–2013Based in Kawasaki, JP· patent location history

2012–2017Patents assigned to MAEDA HIROAKI (9)· patent assignee history

2012–2015Patents assigned to RICOH CO LTD (4)· patent assignee history

2012–2014Based in Ebina, JP· patent location history

2013–2014Patents assigned to HONDA HIROTAKE (3)· patent assignee history

2013–2017Based in Yokohama, JP· patent location history

2013–2017Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
AISIN SEIKI	22	1976–2000
FUJITSU LTD	9	2008–2017
MAEDA HIROAKIself	9	2012–2017
RICOH CO LTD	4	2012–2015
HONDA HIROTAKE	3	2013–2014

Locations

Location	Patents	Span
Toyota, JP	19	1976–2000
Kawasaki, JP	6	2008–2013
Yokohama, JP	4	2013–2017
Kanagawa, JP	3	2013–2017
Ebina, JP	2	2012–2014