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Inventor

Yutaka Takei

Inventor
Tokyo, JP

Overview

17→
Patents
1981–2017
Patent span
Electricity
Primary field (CPC H)

Patents· 17 as inventor

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

H04Nprimary
H04NPictorial communication, e.g. television22%
LOC1417%
G11BInformation storage based on relative movement between record carrier and transducer13%
B29CShaping or joining of plastics9%
C22CAlloys9%
H01FMagnets9%
C23CCoating metallic material4%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them4%
G03DApparatus for processing exposed photographic materials4%
H01HElectric switches4%
PatentTitleYear
D0788737'Telephone'20178,692,775'Key structure of operation section of electronic device, input device and electronic device using same'2014D0687405'Portable wireless telephone'20137,664,256'Mobile terminal apparatus'2010D0559249'Portable hard disk drive'2008D0511344'Portable hard disc drive'20056,555,182'Surface hardened resins for disk substrates, methods of manufacture thereof and production devices for the manufacture thereof'20036,034,710'Image forming method for silver halide photographic material'20006,002,498'Image processing method and image forming method'19995,966,505'Image outputting method and converting information producing method'19995,949,962'Method for calculating color correction conditions, a method for determining an exposure amount for printing, an image processing apparatus, a printing exposure apparatus and a storage medium'19995,926,291'Method of calculating color correcting condition and medium for storing the method'19995,559,577'Device for replenishing solid processing agent used in a light-sensitive material processing apparatus'19964,508,752'Method for manufacturing a magnetic recording medium'19854,362,581'Magnetic alloy'19824,332,834'Method of manufacturing a magnetic recording medium'19824,299,622'Magnetic alloy'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–2010Patents assigned to SONY CORP (8)· patent assignee history
1981–1985Based in Sendai, JP· patent location history
1996–2000Patents assigned to KONISHIROKU PHOTO IND (6)· patent assignee history
1996–2014Based in Tokyo, JP· patent location history
1999–2000Based in Hino, JP· patent location history
2003Patents assigned to AGENCY IND SCIENCE TECHN (1)· patent assignee history
2013–2014Patents assigned to TAKEI YUTAKA (2)· patent assignee history
2013Patents assigned to NEC CASIO MOBILE COMM LTD (1)· patent assignee history
2013Based in Kanagawa, JP· patent location history
2017Based in Kawasaki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SONY CORP81981–2010
KONISHIROKU PHOTO IND61996–2000
TAKEI YUTAKAself22013–2014
AGENCY IND SCIENCE TECHN12003
NEC CASIO MOBILE COMM LTD12013
Locations
LocationPatentsSpan
Tokyo, JP71996–2014
Hino, JP41999–2000
Sendai, JP31981–1985
Kawasaki, JP12017
Kanagawa, JP12013