Inventor

Kinya Nakatsu

Inventor

Hitachinaka, JP

Overview

1999–2021

Patent span

Electricity

Primary field (CPC H)

Patents· 94 as inventor

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

H02Mprimary

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 systems18%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1017%

H05KPrinted circuits16%

Y02TClimate change mitigation technologies related to transportation10%

B60LPropulsion of electrically-propelled vehicles9%

H01LSemiconductor devices6%

H02PControl or regulation of electric motors, electric generators or dynamo-electric converters5%

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

B60YIndexing scheme relating to aspects cross-cutting vehicle technology2%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2%

PatentTitleYear

11,089,702Power conversion apparatus and electric vehicle2021 10,966,355Electric power conversion apparatus2021 10,856,450Power conversion apparatus2020 10,524,398Electric power conversion apparatus2019 10,348,214Power module, power converter device, and electrically powered vehicle2019 10,321,585Power conversion apparatus and electric vehicle2019 10,238,015Power conversion apparatus2019 10,178,780Power conversion apparatus and electric vehicle2019 10,136,555Power conversion apparatus having a metal plate for heat dissipation2018 9,912,248'Power module'2018 9,888,591'Power conversion apparatus and electric vehicle'2018 9,729,076'Power module, power converter device, and electrically powered vehicle'2017 9,648,791'Electric power conversion apparatus'2017 9,609,789'Power conversion apparatus'2017 9,591,789'Power semiconductor module and power module'2017 9,585,292'Power converter'2017 9,583,264'Capacitor device and electrical power conversion device'2017 9,565,791'Power conversion apparatus'2017 9,510,487'Power conversion apparatus'2016 9,439,332'Power module'2016 9,433,134'Power semiconductor module and power converter using the same'2016 9,419,535'Electric power converter'2016 9,407,163'Power module, power converter device, and electrically powered vehicle'2016 9,362,261'Power semiconductor module'2016 9,307,666'Electric circuit device, electric circuit module, and power converter'2016 9,210,834'Power converter'2015 9,159,506'Capacitor module and power conversion device'2015 9,137,932'Electric power conversion apparatus'2015 9,095,079'Power conversion apparatus and electric vehicle'2015 9,042,101'Electric power conversion apparatus'2015 9,000,553'Power module and power converter containing power module'2015 8,952,525'Semiconductor module and method for manufacturing semiconductor module'2015 8,946,567'Power module, power converter device, and electrically powered vehicle'2015 8,917,509'Electric power conversion apparatus'2014 8,902,623'Power inverter'2014 8,863,869'Power conversion apparatus and electric vehicle'2014 8,847,374'Power semiconductor module and manufacturing method thereof'2014 8,743,548'Electric circuit device, electric circuit module, and power converter'2014 8,723,306'Power semiconductor unit, power module, power semiconductor unit manufacturing method, and power module manufacturing method'2014 8,699,254'Power inverter'2014 8,675,364'Power module and power conversion device'2014 8,674,636'Power conversion device'2014 8,659,130'Power module and power module manufacturing method'2014 8,653,652'Semiconductor device, power semiconductor module and power conversion device equipped with power semiconductor module'2014 8,634,220'Power conversion apparatus'2014 8,587,977'Power inverter'2013 8,503,209'Power conversion apparatus and cooling structure therefor'2013 8,462,531'Power inverter'2013 8,422,235'Semiconductor device, and power conversion device using semiconductor device'2013 8,416,574'Electric power conversion apparatus'2013 8,411,441'Power converter'2013 8,376,069'Power conversion apparatus and electric vehicle'2013 8,373,300'Power conversion apparatus and electric vehicle'2013 8,240,411'Power conversion apparatus and electric vehicle'2012 8,212,382'Power conversion apparatus and electric vehicle'2012 D0651565'Portion of power module for power inverter'2012 D0651170'Portion of a power module for power inverter'2011 8,081,472'Electric circuit device, electric circuit module, and power converter'2011 8,064,234'Power conversion apparatus'2011 7,978,471'Electric power conversion apparatus'2011 7,978,468'Power converter'2011 7,968,925'Power semiconductor module for inverter circuit system'2011 7,969,735'Power converter'2011 7,961,472'Electric circuit device, electric circuit module, and power converter'2011 7,952,876'Electric power converter'2011 7,859,105'Power converter, power system provided with same, and mobile body'2010 7,830,689'Power converter'2010 7,816,786'Semiconductor unit, and power conversion system and on-vehicle electrical system using the same'2010 7,812,443'Power semiconductor module for inverter circuit system'2010 7,745,952'Electric circuit module with improved heat dissipation characteristics using a fixing tool for fixing an electric apparatus to a heat sink'2010 7,742,303'Electric power converter'2010 7,692,923'Power converter'2010 D0601499'Portions of capacitor module for power inverter'2009 D0598846'Portion of power module for power inverter'2009 7,570,008'Power module, power converter, and electric machine system for mounting in vehicle'2009 7,504,720'Semiconductor unit, and power conversion system and on-vehicle electrical system using the same'2009 7,271,557'AC motor driving apparatus and method of controlling the same'2007 7,206,204'Electric circuit module'2007 7,124,714'Fuel supply apparatus using low boiling point fuel and its control method'2006 7,059,276'Fuel supply apparatus using low boiling point fuel and its control method'2006 6,960,980'Power converter with shunt resistor'2005 6,951,207'Fuel supply apparatus using low boiling point fuel and its control method'2005 6,927,665'Power converter'2005 6,918,370'Fuel supply apparatus using low boiling point fuel and its control method'2005 6,910,468'Fuel supply apparatus using low boiling point fuel and its control method'2005 6,873,240'Power converter'2005 6,844,700'Inverter apparatus'2005 6,794,854'Vehicle power converted with shunt resistor having plate-shape resistive member'2004 6,741,063'Inverter apparatus'2004 6,556,464'PWM converter system'2003 6,496,397'Inverter device'2002 6,486,548'Semiconductor module and power converting apparatus using the module'2002 6,144,571'Semiconductor module, power converter using the same and manufacturing method thereof'2000 5,949,663'Inverter apparatus capable of readily modification of the specification and performance thereof'1999

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999–2021Patents assigned to HITACHI LTD (65)· patent assignee history

1999–2015Based in Hitachi, JP· patent location history

2007–2021Based in Hitachinaka, JP· patent location history

2011–2016Patents assigned to NAKATSU KINYA (28)· patent assignee history

2011–2019Patents assigned to HITACHI AUTOMOTIVE SYSTEMS LTD (25)· patent assignee history

2011–2016Patents assigned to TOKUYAMA TAKESHI (16)· patent assignee history

2011–2016Patents assigned to SATOH TOSHIYA (9)· patent assignee history

2016–2018Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	65	1999–2021
NAKATSU KINYAself	28	2011–2016
HITACHI AUTOMOTIVE SYSTEMS LTD	25	2011–2019
TOKUYAMA TAKESHI	16	2011–2016
SATOH TOSHIYA	9	2011–2016

Locations

Location	Patents	Span
Hitachinaka, JP	65	2007–2021
Hitachi, JP	19	1999–2015
Tokyo, JP	10	2016–2018