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Inventor

Kouki Yamamoto

Inventor
Tokyo, JP

Overview

34→
Patents
2000–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 34 as inventor

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

G11Cprimary
G11CStatic stores21%
H02KDynamo-electric machines15%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters8%
H03FAmplifiers8%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for6%
B60LPropulsion of electrically-propelled vehicles4%
B62DMotor vehicles4%
E05FDevices for moving wings into open or closed position4%
H05KPrinted circuits4%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h104%
PatentTitleYear
11,104,380Display controller202111,077,794Vehicle periphery display device202111,082,631Image processing device202110,862,440High-frequency amplifier202010,756,165High-frequency transistor20208,674,647'Drive device for alternating current motor and electric motor vehicle'20148,040,186'Radio frequency amplifier circuit and mobile communication terminal using the same'20117,671,558'Induction motor controller'20107,639,080'Radio frequency amplifier circuit and mobile communication terminal using the same'20097,545,116'Driver for induction motor and method of driving the same'20097,425,873'Radio frequency amplification apparatus'20087,312,403'Circuit component mounting device'20077,190,982'Radio frequency device'20077,104,363'Power transmission system for elevator'20066,917,133'Air conditioner having permanent magnet rotating electric machine'20056,735,144'Semiconductor integrated circuit device'20046,697,289'Redundant address setting circuit and semiconductor memory device including the same'20046,675,938'Door system including linear motor driving mechanism'20046,541,880'Linear motor'20036,525,442'Permanent magnet rotating electric machine'20036,525,510'Vehicle operating system'20036,467,584'Door system including linear motor driving mechanism'20026,453,400'Semiconductor integrated circuit device'20026,441,525'Permanent magnet rotating electric machine'20026,441,523'Very high permanent magnet type electric rotating machine system'20026,377,501'Semiconductor integrated circuit device'20026,376,958'Permanent magnet type synchronous motor and air compressor'20026,339,817'Semiconductor memory including main and sub memory portions having plural memory cell groups and a bidirectional data transfer circuit'20026,252,788'Semiconductor integrated circuit device'20016,243,279'Semiconductor integrated circuit device'20016,191,996'Semiconductor memory device and data transmission method'20016,151,256'Semiconductor integrated circuit device'20006,101,146'Semiconductor integrated circuit device'20006,016,280'Semiconductor integrated circuit device'2000

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2000–2004Patents assigned to NEC CORP (11)· patent assignee history
2000–2006Based in Tokyo, JP· patent location history
2002–2014Patents assigned to HITACHI LTD (10)· patent assignee history
2002–2010Based in Hitachinaka, JP· patent location history
2007–2008Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (3)· patent assignee history
2007–2020Based in Shiga, JP· patent location history
2009–2010Patents assigned to HITACHI IND EQUIPMENT SYS (2)· patent assignee history
2021Patents assigned to AISIN SEIKI (3)· patent assignee history
2021Based in Kariya, JP· patent location history
2021Based in Anjo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NEC CORP112000–2004
HITACHI LTD102002–2014
AISIN SEIKI32021
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD32007–2008
HITACHI IND EQUIPMENT SYS22009–2010
Locations
LocationPatentsSpan
Tokyo, JP122000–2006
Hitachinaka, JP112002–2010
Shiga, JP62007–2020
Kariya, JP12021
Anjo, JP12021