Inventor

Daisuke Maeda

Inventor

Tokyo, JP

Overview

47→

Patents

2004–2021

Patent span

Chemistry

Primary field (CPC C)

Patents· 47 as inventor

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

B62Dprimary

B62DMotor vehicles8%

H02PControl or regulation of electric motors, electric generators or dynamo-electric converters8%

C22CAlloys7%

G01CMeasuring distances, levels or bearings7%

G01PMeasuring linear or angular speed, acceleration, deceleration, or shock7%

C21DModifying the physical structure of ferrous metals6%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds4%

H01LSemiconductor devices4%

B21BRolling of metal3%

B81BMicrostructural devices or systems, e.g. micromechanical devices3%

PatentTitleYear

11,061,297Nonlinear optically active copolymer into which alicyclic group has been introduced2021 10,989,731Physical quantity sensor2021 10,955,243Inertial sensor2021 10,717,818Polymer containing triazine ring and composition containing same2020 10,655,192Hot-rolled steel sheet2020 10,604,681Solvent-free light-curable adhesive composition2020 10,551,192Inertial sensor2020 10,459,003Signal detection method for capacitance detection type sensor, MEMS sensor, and system2019 10,444,758Autonomous traveling device2019 10,435,772Steel sheet2019 10,428,409Hot-rolled steel sheet with excellent press formability and production method thereof2019 10,324,107Acceleration detection device2019 10,273,566Hot-rolled steel sheet and method for producing same2019 10,226,800Hot-rolled steel sheet2019 10,121,040Recognition apparatus, recognition method, storage medium, management system, and conveyance system2018 9,896,737'Hot-rolled steel sheet'2018 9,810,734'Compound sensor including a plurality of detection elements and a plurality of fault detection circuits'2017 9,772,809'Printed matter delivery system, image forming apparatus, and printed matter delivery apparatus'2017 9,745,470'Film-forming composition'2017 9,692,531'Method and system of measuring communication quality'2017 9,685,572'Protective sheet for rear surface of solar cell'2017 9,617,626'High-strength steel sheet exhibiting excellent stretch-flange formability and bending workability, and method of producing molten steel for the high-strength steel sheet'2017 9,557,345'Inertial sensor'2017 9,382,381'Aromatic polyamide and film-forming composition containing same'2016 9,279,827'Sensor module and sensor system'2016 9,238,848'High-strength steel sheet and method for producing same'2016 9,086,427'Inertial sensor'2015 8,531,148'Control apparatus and control method for AC electric motor'2013 8,436,563'Control unit and control method for permanent magnet synchronous motor'2013 8,421,395'Synchronous motor and control method of synchronous motor'2013 8,035,330'Apparatus and method for driving synchronous motor'2011 7,865,283'Vehicle steering system'2011 7,859,210'Semiconductor device for driving motor, three-phase motor and motor driving apparatus with the semiconductor device and fan motor'2010 7,839,113'Apparatus and method for driving synchronous motor'2010 7,821,223'Vector controller for a permanent magnet motor and inverter module'2010 7,735,597'Steering apparatus for vehicle'2010 7,665,572'Vehicle steering system'2010 7,619,385'Motor controller, washing machine, air conditioner and electric oil pump'2009 7,613,556'Vehicle steering system'2009 7,610,134'Vehicle steering system'2009 7,568,989'Rotation transmitting apparatus and vehicle steering apparatus'2009 7,516,003'Vehicle steering system'2009 7,479,089'Differential gear apparatus'2009 7,443,120'Field weakening vector controller for permanent magnet synchronous motor and control module'2008 7,392,121'Vehicle steering system'2008 6,683,769'Protective relay apparatus'2004 6,678,136'Protective relay apparatus'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004–2013Patents assigned to HITACHI LTD (11)· patent assignee history

2004–2011Based in Hitachi, JP· patent location history

2008–2011Patents assigned to JTEKT CORP (9)· patent assignee history

2008–2011Based in Kashiwara, JP· patent location history

2013–2019Patents assigned to MAEDA DAISUKE (11)· patent assignee history

2015–2021Patents assigned to HITACHI AUTOMOTIVE SYSTEMS LTD (9)· patent assignee history

2015–2021Based in Tokyo, JP· patent location history

2016–2020Patents assigned to NIPPON STEEL & SUMITOMO METAL CORP (7)· patent assignee history

2016–2021Based in Funabashi, JP· patent location history

2017–2019Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	11	2004–2013
MAEDA DAISUKEself	11	2013–2019
HITACHI AUTOMOTIVE SYSTEMS LTD	9	2015–2021
JTEKT CORP	9	2008–2011
NIPPON STEEL & SUMITOMO METAL CORP	7	2016–2020

Locations

Location	Patents	Span
Tokyo, JP	14	2015–2021
Kashiwara, JP	9	2008–2011
Hitachi, JP	8	2004–2011
Funabashi, JP	5	2016–2021
Kanagawa, JP	3	2017–2019