LexDanaLexDanabeta
Inventor

Koichi Hirota

Inventor
Echizen-shi, JP

Overview

70→
Patents
1986–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 70 as inventor

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

H01Fprimary
H01FMagnets20%
B22FWorking metallic powder10%
C22CAlloys10%
Y10TTechnical subjects covered by former us classification6%
H02KDynamo-electric machines6%
C07CAcyclic or carbocyclic compounds5%
B60NSeats specially adapted for vehicles5%
E05BLocks5%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for3%
E05FDevices for moving wings into open or closed position2%
PatentTitleYear
10,937,578Method for preparing R--Fe--B sintered magnet202110,720,271R-Fe-B sintered magnet202010,573,438R-(Fe, Co)-B sintered magnet and making method202010,515,747R-Fe-B sintered magnet and making method201910,410,775R--Fe--B sintered magnet and making method201910,073,427Operation detecting device of opening and closing body for vehicle201810,074,477Rare earth sintered magnet and making method20189,953,750Nd based sintered magnet20189,892,831'R-Fe—B sintered magnet and making method'20189,742,248'Method for assembling rotor for use in IPM rotary machine'20179,156,439'Automatic opening and closing apparatus of opening and closing member for vehicle and structural member included in vehicle'20158,983,736'Grille shutter control device'20158,975,850'Driving control device of opening and closing body for vehicle'20158,826,592'Window regulator device'20148,823,235'Rotor for axial gap-type permanent magnetic rotating machine'20148,756,793'Method for assembling rotor for use in IPM rotary machine'20148,695,210'Method of manufacturing an Nd based sintered magnet'20148,638,017'Rotor for permanent magnet rotating machine'20148,562,034'Opening-and-closing member drive control apparatus for vehicle'20138,496,219'Seat sliding apparatus for a vehicle'20138,478,491'Seat control device, method, and program'20138,420,010'Method for preparing rare earth permanent magnet material'20138,377,233'Preparation of rare earth permanent magnet material'20138,269,392'Rotor for permanent magnet rotary machine'20128,231,740'Method for preparing rare earth permanent magnet material'20128,211,327'Preparation of rare earth permanent magnet material'20128,075,707'Method for preparing rare earth permanent magnet material'20118,012,269'Nd-Fe-B rare earth permanent magnet material'20117,988,795'R-T-B—C rare earth sintered magnet and making method'20117,986,151'Head rest device for vehicle'20117,955,443'Method for preparing rare earth permanent magnet material'20117,883,587'Method for preparing rare earth permanent magnet'20117,866,745'Vehicle seat'20117,770,967'Head rest device'20107,642,985'Seat for vehicle'20107,568,544'Occupant protection device for vehicle'20097,559,996'Rare earth permanent magnet, making method, and permanent magnet rotary machine'20097,531,933'Permanent magnet rotating machine'20097,520,941'Functionally graded rare earth permanent magnet'20097,488,393'Rare earth permanent magnet'20097,488,394'Rare earth permanent magnet'20097,488,395'Functionally graded rare earth permanent magnet'20097,485,193'R-FE-B based rare earth permanent magnet material'20097,204,891'Remelting of rare earth magnet scrap and/or sludge, magnet-forming alloy, and sintered rare earth magnet'20077,140,653'Outside handle apparatus and connector mechanism'20067,064,456'Door lock release device'20067,031,814'Occupant protection apparatus for vehicle'20067,029,054'Outside handle device'20066,998,969'Door lock apparatus for vehicle'20066,976,726'Outside handle device for a vehicle door'20056,960,240'Remelting of rare earth magnet scrap and/or sludge, magnet-forming alloy, and sintered rare earth magnet'20056,881,912'Door open/close operating device'20056,866,310'Door latch operation device for vehicle'20056,717,290'Vehicular door latch operation control device'20046,527,822'Quenched thin ribbon of rare earth/iron/boron-based magnet alloy'20036,445,147'Movable body control system for vehicle'20026,419,723'Thin ribbon of rare earth-based permanent magnet alloy'20026,392,084'Method for production of organic fluorine compound'20026,322,637'Thin ribbon of rare earth-based permanent magnet alloy'20016,319,335'Quenched thin ribbon of rare earth/iron/boron-based magnet alloy'20016,034,264'Method for production of nuclear halogenated aromatic compound possessing cyano groups'20006,015,449'Rain drop detecting device'20005,789,582'Method for production of nuclear halogenated aromatic compound possesing cyano groups'19985,523,473'Method of producing naphthalenedicarboxylic acids and diaryldicarboxylic acids'19965,284,091'Plate roll and an adhesive sheet therefor'19945,144,066'Method of producing naphthalenedicarboxylic acids and diaryldicarboxylic acids'19924,782,179'3-amino-2,4,5-trifluorobenzoic acid and a method for manufacture thereof'19884,769,492'Method for production of 2,3,4,5-tetrafluorobenzoic acid'19884,689,179'Method for production of fluorinated quinones'19874,572,805'2,3,5,6-Tetrafluorophenyl (meth) acrylates and method for production thereof'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–1996Based in Suita, JP· patent location history
1994–2017Based in Tokyo, JP· patent location history
2000–2018Patents assigned to AISIN SEIKI (24)· patent assignee history
2001–2021Patents assigned to SHINETSU CHEMICAL CO (36)· patent assignee history
2001–2003Based in Fukui, JP· patent location history
2005–2018Based in Takahama, JP· patent location history
2009–2021Based in Echizen-shi, JP· patent location history
2011–2015Patents assigned to HIROTA KOICHI (16)· patent assignee history
2011–2014Patents assigned to MINOWA TAKEHISA (10)· patent assignee history
2011–2014Patents assigned to NAKAMURA HAJIME (10)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SHINETSU CHEMICAL CO362001–2021
AISIN SEIKI242000–2018
HIROTA KOICHIself162011–2015
MINOWA TAKEHISA102011–2014
NAKAMURA HAJIME102011–2014
Locations
LocationPatentsSpan
Echizen-shi, JP252009–2021
Takahama, JP212005–2018
Tokyo, JP61994–2017
Suita, JP61986–1996
Fukui, JP42001–2003