LexDanaLexDanabeta
Inventor

Osamu Kawamae

Inventor
Yokohama, JP

Overview

59→
Patents
1995–2021
Patent span
Physics
Primary field (CPC G)

Patents· 59 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 transducer46%
H04NPictorial communication, e.g. television15%
H03MCoding12%
H04LTransmission of digital information, e.g. telegraphic communication10%
H04KSecret communication7%
G06TImage data processing or generation, in general3%
G06FElectric digital data processing2%
H02JElectric power networks2%
B60LPropulsion of electrically-propelled vehicles1%
H01FMagnets1%
PatentTitleYear
10,971,953Contactless power receiving device, contactless power transfer device, and contactless power transfer and receiving device202110,971,952Wireless power transfer device202110,652,595Content transmission device and content transmission method thereof20208,789,618'Optical disc, optical disc recording method, optical disc reproduction method, optical disc device and storage system'20148,760,981'Optical disc device and optical disc recording/reproducing method'20148,730,771'Recording/reproducing device'20148,695,024'Disc changer with detachable optical disc storage magazine for storing multiple optical discs'20148,483,025'Data recording and reproducing apparatus and data library device'20138,416,660'Recording quality evaluation method of optical disk and optical disk storage system'20138,407,533'Method of recording/reproducing digital data and apparatus for same'20138,369,194'Optical disc device, optical disc recording method, and reproduction method'20138,356,235'Recording and reproducing data to/from a recording medium having a user data area and an information area for storing information about the recording medium'20138,311,219'Reproducing apparatus, recording apparatus and display apparatus'20128,103,878'Control device, update method and control software'20128,074,071'Reproducing apparatus, recording apparatus and display apparatus'20117,984,340'Method of recording/reproducing digital data and apparatus for same'20117,984,339'Method of recording/reproducing digital data and apparatus for same'20117,979,753'Method of recording/reproducing digital data and apparatus for same'20117,779,256'Reproducing apparatus, recording apparatus and display apparatus'20107,751,587'Data production method and apparatus'20107,747,910'Method of recording/reproducing digital data and apparatus for same'20107,657,817'Recording and reproducing data to/from a recording medium having a user data area and an information area for storing information about the recording medium'20107,647,542'Recording and reproducing data to/from a recording medium having a user data area and an information area for storing information about the recording medium'20107,620,874'Recording method for recording data on a recording medium'20097,594,155'Recording and reproducing data to/from a recording medium having a user data area and an information area for storing information about the recording medium'20097,590,915'Recording and reproducing data to/from a recording medium having a user data area and an information area for storing information about the recording medium'20097,441,163'Method of recording/reproducing digital data and apparatus for same'20087,421,626'Method of recording/reproducing digital data and apparatus for same'20087,421,627'Method of recording/reproducing digital data and apparatus for same'20087,406,636'Method of recording/reproducing digital data and apparatus for same'20087,379,547'Reproducing apparatus, recording apparatus and display apparatus'20087,336,786'Reproduction apparatus'20087,317,738'Data transmission method for embedded data, data transmitting and reproducing apparatuses and information recording medium therefor'20087,305,606'Method of recording/reproducing digital data and apparatus for same'20077,281,194'Recording method for recording data on a recording medium'20077,248,607'Data transmission method for embedded data, data transmitting and reproducing apparatuses and information recording medium therefor'20077,155,015'Optical disk apparatus and data randomizing method using for optical disk apparatus'20067,116,893'Data recording/reproduction apparatus and method'20067,043,645'Reproducing apparatus, recording apparatus and display apparatus'20067,019,927'Information signal recording and playback method and apparatus therefor'20066,918,079'Recording method, reproducing method, recording apparatus, and reproducing apparatus'20056,882,728'Reproduction apparatus and decoding apparatus'20056,778,757'Data recording/reproduction apparatus and method'20046,657,831'Information signal recording and playback method and apparatus therefor'20036,578,149'METHOD FOR REPRODUCING DATA, APPARATUS FOR REPRODUCING DATA, METHOD FOR CODING DATA, METHOD FOR RECORDING DATA, APPARATUS FOR RECORDING AND REPRODUCING DATA, METHOD FOR AUTHENTICATION, SEMICONDUCTOR CHIP, REPRODUCING APPARATUS, RECORDING APPARATUS AND DATA PROCESSING APPARATUS'20036,424,477'Information signal recording and playback method and apparatus therefor'20026,404,781'Data transmission method for embedded data, data transmitting and reproducing apparatuses and information recording medium therefor'20026,347,353'Information medium having digital signals recorded thereon'20026,332,174'Digital signal reproducing apparatus'20016,324,618'Optical disk reproducing apparatus'20016,233,649'Digital signal reproducing method'20016,154,806'Method for recording digital signals on multiple-layered disks'20006,076,135'Information medium having a plurality of recording surfaces'20006,014,766'Digital signal reproduction apparatus'20005,966,721'Digital signal recording method and disk reproducing apparatus'19995,956,193'Information signal recording and playback method and apparatus therefor'19995,920,579'Digital signal reproduction apparatus'19995,589,995'Header information of information signal recording and reproducing method and apparatus therefor'19965,442,612'Digital signal reproduction devices, integrated circuits for use therewith, and digital signal reproduction methods'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–2013Patents assigned to HITACHI LTD (49)· patent assignee history
1995–2014Based in Kawasaki, JP· patent location history
1996–2013Based in Yokohama, JP· patent location history
2007Based in Tokyo, JP· patent location history
2010–2014Patents assigned to HITACHI LG DATA STORAGE INC (5)· patent assignee history
2011–2014Patents assigned to KAWAMAE OSAMU (12)· patent assignee history
2013–2014Patents assigned to HITACHI CONSUMER ELECTRONICS (6)· patent assignee history
2020–2021Patents assigned to MAXELL LTD (3)· patent assignee history
2020Based in Otokuni-gun, JP· patent location history
2021Based in Kyoto, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD491995–2013
KAWAMAE OSAMUself122011–2014
HITACHI CONSUMER ELECTRONICS62013–2014
HITACHI LG DATA STORAGE INC52010–2014
MAXELL LTD32020–2021
Locations
LocationPatentsSpan
Yokohama, JP451996–2013
Kawasaki, JP101995–2014
Kyoto, JP22021
Otokuni-gun, JP12020
Tokyo, JP12007