Inventor

Kenji Nakai

Inventor
Fukaya, JP

Overview

31→
Patents
1985–2020
Patent span
General tagging of new technological developments
Primary field (CPC Y)

Patents· 31 as inventor

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

H01Mprimary
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy17%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution17%
Y02PClimate change mitigation technologies in the production or processing of goods11%
Y02TClimate change mitigation technologies related to transportation7%
Y10TTechnical subjects covered by former us classification6%
A61BDiagnosis4%
G01RMeasuring electric variables3%
H01LSemiconductor devices3%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h103%
B41JTypewriters2%
PatentTitleYear
10,860,193Distributed computing transition screen display based on application type202010,339,348Reading device201910,032,650Die mounting system and die mounting method20189,887,111'Die mounting system and die mounting method'20189,590,431'Battery controller, battery system'20179,557,388'Battery control device'20179,077,043'Secondary battery cell'20158,928,282'Control system for assembled battery'20158,887,758'Solenoid valve control device'20148,874,199'Electrocardiogram analyzer'20148,568,916'Lithium ion secondary battery'20138,132,663'Conveyor table of cutting machine'20128,053,105'Lithium-ion secondary battery'20117,989,107'Lithium-ion secondary battery'20117,867,644'Secondary battery and secondary battery manufacturing method'20117,767,342'Positive electrode active material including a lithium transition metal complex oxide and an oxide of a dissimilar element'20107,248,044'Magnetic flux measuring apparatus by hysteresis characteristic type digital FLL using counter system for squid'20077,144,376'Liable cardiac muscle diagnosing apparatus and liable cardiac muscle analyzing method by magnetic field measurements'20067,123,952'Cardiac magnetic field diagnozer for atrial flutter and atrial fibrillation and method for identifying electric turning path of atrial flutter and atrial fibrillation'20066,941,165'Cardiac magnetic field diagnosing apparatus by late ventricular potential and method of locating intramyocardial excitement uneven propagation portion'20056,803,149'Non-aqueous electrolytic solution secondary battery'20046,733,925'Non-aqueous electrolytic solution secondary battery with electrodes having a specific thickness and porosity'20046,706,446'Non-aqueous electrolytic solution secondary battery'20046,509,114'Cylindrical lithium-ion battery'20036,447,946'Lithium-ion battery'20025,962,167'Non-aqueous liquid electrolyte secondary cell'19995,544,502'Knitting yarn feeding apparatus for flat knitting machine'19965,305,021'Thermal head'19945,223,855'Thermal head for a printer'19935,042,155'Image forming member drive device of an automatic drawing apparatus'19914,509,693'Electromagnetic fuel injector'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–2020Based in Kyoto, JP· patent location history
1999–2010Patents assigned to SHIN KOBE ELECTRIC MACHINERY (7)· patent assignee history
2004–2013Based in Fukaya, JP· patent location history
2005–2006Patents assigned to TAKENAKA CORP (3)· patent assignee history
2005–2014Based in Morioka, JP· patent location history
2011–2013Patents assigned to HITACHI VEHICLE ENERGY LTD (4)· patent assignee history
2011–2017Based in Hitachinaka, JP· patent location history
2012–2017Patents assigned to NAKAI KENJI (8)· patent assignee history
2015–2017Patents assigned to HITACHI AUTOMOTIVE SYSTEMS LTD (4)· patent assignee history
2018–2019Based in Chiryu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NAKAI KENJIself82012–2017
SHIN KOBE ELECTRIC MACHINERY71999–2010
HITACHI AUTOMOTIVE SYSTEMS LTD42015–2017
HITACHI VEHICLE ENERGY LTD42011–2013
TAKENAKA CORP32005–2006
Locations
LocationPatentsSpan
Fukaya, JP62004–2013
Morioka, JP52005–2014
Hitachinaka, JP42011–2017
Chiryu, JP32018–2019
Kyoto, JP21991–2020