Inventor

Kinya Aota

Inventor

Hitachi, JP

Overview

2000–2020

Patent span

Performing operations

Primary field (CPC B)

Patents· 65 as inventor

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

B23Kprimary

B23KSoldering or unsoldering24%

Y10TTechnical subjects covered by former us classification19%

B61DBody details or kinds of railway vehicles10%

E04CStructural elements10%

B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling6%

H05BElectric heating6%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution4%

H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy4%

Y02PClimate change mitigation technologies in the production or processing of goods3%

B22FWorking metallic powder1%

PatentTitleYear

10,796,807Nuclear reactor fuel rod and fuel assembly having bundled same2020 10,787,725High entropy alloy article, method for manufacturing same, and product using same2020 10,702,944Alloy structure and method for producing alloy structure2020 10,576,538Alloy structure and method for producing alloy structure2020 9,748,554'Electric storage device and method for manufacturing electric storage device'2017 9,065,124'Battery pack and method for welding cells'2015 8,673,470'Secondary cell'2014 8,568,916'Lithium ion secondary battery'2013 8,507,118'Secondary battery and fabrication method thereof'2013 8,053,105'Lithium-ion secondary battery'2011 D0644176'Battery'2011 D0644178'Battery'2011 D0642978'Battery'2011 7,896,933'Hydrogen supplying apparatus and method of manufacturing hydrogen supplying apparatus'2011 7,867,644'Secondary battery and secondary battery manufacturing method'2011 7,665,651'Method of joining two members by friction stir welding'2010 7,661,575'Friction stirring-welding method'2010 7,635,075'Method of friction stir-spot welding and welding apparatus'2009 7,562,802'Friction stir welding method and structure body formed'2009 7,520,104'Friction stir welding member'2009 7,513,409'Friction stir welding method and structure body'2009 7,480,992'Cooling plate and manufacturing method thereof, and sputtering target and manufacturing method thereof'2009 7,416,769'Friction stir welding member'2008 7,413,107'Friction stir welding method and structure body'2008 7,287,683'Method of joining two members by friction stir welding'2007 7,178,303'Friction stir welding hollow frame member'2007 7,114,304'Friction stir welding member'2006 7,097,091'Friction stir welding method and component part welded by the method'2006 7,073,701'Method of joining two members by friction stir welding'2006 7,056,594'Friction stir welding method and structure body'2006 7,036,707'Friction stir welding method, frame members used therein, and product formed thereby'2006 7,032,804'Friction stir welding method and structure body'2006 7,032,805'Manufacturing method of structure body and structure body formed'2006 6,983,873'Friction stir welding method and structure body formed'2006 6,978,923'Friction stir welding method'2005 6,966,481'Friction stir welding method'2005 6,953,144'Friction stir wilding method and structure body'2005 6,946,206'Friction stir welding method and structure body'2005 6,936,332'Extruded frame member for use in friction stir welding'2005 6,866,181'Friction stir welding method'2005 6,862,860'Friction stir welding method of opposite sides of panels'2005 6,840,426'Friction stir welding method and structure body formed by friction stir welding'2005 6,739,495'Friction stir welding method and component part welded by the method'2004 6,722,286'Structure and railway car'2004 6,716,538'Structural body formed by friction stir welding'2004 6,715,665'Friction stir welding method and apparatus, and welded structure'2004 6,640,515'Frame member used in friction stir welding'2003 6,619,534'Friction stir welding method using members which overlap and have protrusion at the weld location prior to the welding'2003 6,613,447'Structural body formed by friction stir welding and having protrusion at the weld provided prior to the welding'2003 6,607,837'Structural body formed by friction stir welding method'2003 6,595,403'Friction stir welding method'2003 6,585,443'Structural body formed by friction stir welding two members, one of which has a protruding portion'2003 6,581,819'Panel structure, a friction stir welding method, and a panel'2003 6,540,128'Friction stir welding method and apparatus, and welded structure'2003 6,533,493'Structural body'2003 6,530,713'Structural body'2003 6,527,470'Structural body and friction stir welding method'2003 6,419,144'Method of forming structural body using friction stir welding, and structural body formed'2002 6,382,498'Friction stir welding method including positioning of rotary tool, and structural body formed thereby'2002 6,378,754'Friction stir welding method including removal of protruding portion, and structural body formed thereby'2002 6,305,866'Structure joined by friction stir welding'2001 6,299,050'Friction stir welding apparatus and method'2001 6,237,829'Friction stir welding apparatus'2001 6,193,137'Constructive body and friction stir welding method'2001 6,050,474'Friction stir welding method, frame members used therein, and product formed thereby'2000

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2000–2020Patents assigned to HITACHI LTD (52)· patent assignee history

2000–2015Based in Hitachi, JP· patent location history

2003–2010Based in Kudamatsu, JP· patent location history

2003Based in Ibaraki-shi, JP· patent location history

2011–2014Patents assigned to HITACHI VEHICLE ENERGY LTD (8)· patent assignee history

2013–2015Patents assigned to AOTA KINYA (4)· patent assignee history

2013–2014Patents assigned to FUJITA TOSHIRO (2)· patent assignee history

2017Based in Hitachinaka, JP· patent location history

2020Patents assigned to HITACHI METALS LTD (3)· patent assignee history

2020Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	52	2000–2020
HITACHI VEHICLE ENERGY LTD	8	2011–2014
AOTA KINYAself	4	2013–2015
HITACHI METALS LTD	3	2020
FUJITA TOSHIRO	2	2013–2014

Locations

Location	Patents	Span
Hitachi, JP	38	2000–2015
Kudamatsu, JP	21	2003–2010
Tokyo, JP	4	2020
Hitachinaka, JP	1	2017
Ibaraki-shi, JP	1	2003