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Inventor

Hajime Utsunomiya

Inventor
Tokyo, JP

Overview

72→
Patents
1989–2012
Patent span
Physics
Primary field (CPC G)

Patents· 72 as inventor

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

G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer62%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests16%
Y10TTechnical subjects covered by former us classification14%
B82YSpecific uses or applications of nanostructures3%
C23CCoating metallic material3%
B23KSoldering or unsoldering1%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices1%
H04NPictorial communication, e.g. television1%
PatentTitleYear
8,229,275'Method for controlling recorder and apparatus for controlling recorder'20128,107,349'Optical head device and optical recording and reading system'20127,960,006'Optical recording medium and recording film material'20117,859,968'Information readout method for non mask layer type optical information medium'20107,738,335'Method and apparatus for recording information on an optical recording medium'20107,701,838'Optical information medium including an information bearing surface and a functional layer, and reading method'20107,554,894'Data recording and readingout system'20097,496,019'Information readout method for non mask layer type optical information medium'20097,479,363'Optical recording medium and method for optically recording data in the same'20097,336,592'Optical information recording medium'20087,324,426'Optical information recording medium'20087,321,543'Optical information recording medium'20087,297,472'Processing method for photoresist master, production method for recording medium-use mater, production method for recording medium, photoresist master, recording medium-use master and recording medium'20077,231,649'Optical recording medium and method for optically recording data in the same'20077,227,832'Optical recording medium and method of recording information to optical recording medium'20077,197,005'Optical recording method and medium'20077,182,990'Optical information recording medium'20077,177,254'Optical recording method for high transfer rates'20077,167,440'Optical information recording medium'20077,166,347'Optical information recording medium'20077,160,597'Optical information recording medium'20077,157,128'Optical information recording medium'20077,154,836'Optical recording/reproducing method and optical recording medium'20067,141,289'Optical information recording medium'20067,141,288'Optical information recording medium'20067,143,426'Multilayer optical recording medium with thickness ranges reducing interlayer cross-talk'20067,136,343'Optical recording/reproducing method and optical recording medium'20067,083,894'Optical recording medium'20066,999,392'Optical recording method and optical recording medium'20066,996,055'Optical recording medium and method for optically recording data in the same'20066,965,556'Optical information medium having high resolution beyond a diffraction limit and reading method'20056,898,174'Optical recording medium'20056,798,733'Optical recording method and medium'20046,677,104'Optical information medium'20046,665,260'Optical recording medium including protruding winding parts used as prepits'20036,618,349'Optical recording medium and its designing method'20036,605,328'Optical recording medium'20036,537,721'Optical recording medium and method for its initialization'20036,515,952'Optical recording method'20036,496,462'Optical recording method, optical recording apparatus, and optical recording medium'20026,495,308'Optical recording method and optical recording medium'20026,465,070'Optical recording medium'20026,461,710'Optical recording medium'20026,449,240'System, method and information medium for storing and reading information as a difference in a surface potential or a surface charge density'20026,438,085'Optical recording method'20026,430,128'Method for reading optical information medium and optical information medium'20026,329,036'Optical recording medium and use'20016,249,509'Optical device with protective cover'20016,226,256'Optical recording disc having synchronization mark pattern and method of its recording and reproduction'20016,192,024'Optical recording medium'20016,169,722'Phase change type optical recording medium having minute length recorded marks'20016,154,437'Phase-change optical recording medium and its writing with high reliability after long period use and/or high environmental temperature storage'20006,146,733'Optical recording medium'20006,125,101'Phase-change type optical recording medium having recording marks wider than a recording track'20006,115,351'Phase change optical recording medium and its writing with high reliability after long period use and/or high environmental temperature storage'20006,103,330'Optical recording medium and fabrication method therefor'20006,096,400'Optical recording medium'20006,087,067'Optical recording medium'20006,051,363'Method for making an optical recording medium'20006,040,030'Optical recording medium'20006,030,679'Optical recording material and its fabrication method'20005,965,323'Method for preparing optical recording medium'19995,710,746'Magneto-optical recording medium and reading method with magnetic layers of different coercivity'19985,700,567'Magneto-optical recording medium'19975,593,789'Magneto-optical recording medium'19975,590,099'Magneto-optical recording method and method for making information-carrying magneto-optical recording medium'19965,577,020'Magneto-optical disc with intermediate film layer between a recording film and a dielectric film'19965,571,629'Optical recording medium'19965,552,237'Magnetooptical recording medium'19965,430,706'Magneto-optical disk having lands and grooves for recording information'19954,902,584'Optical recording medium'19904,849,304'Optical recording medium'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–2012Patents assigned to TDK CORP (69)· patent assignee history
1989–2001Based in Nagano, JP· patent location history
2000Patents assigned to TDKCORPORATION (2)· patent assignee history
2000–2012Based in Tokyo, JP· patent location history
2000Based in Saitama-shi, JP· patent location history
2003–2009Based in Chuo-ku, JP· patent location history
2012Patents assigned to UTSUNOMIYA HAJIME (2)· patent assignee history
2012Patents assigned to KATO TATSUYA (1)· patent assignee history
2012Patents assigned to KAWANO NORIYUKI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TDK CORP691989–2012
TDKCORPORATION22000
UTSUNOMIYA HAJIMEself22012
KATO TATSUYA12012
KAWANO NORIYUKI12012
Locations
LocationPatentsSpan
Tokyo, JP442000–2012
Nagano, JP211989–2001
Chuo-ku, JP62003–2009
Saitama-shi, JP12000