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Inventor

Toshimitsu Miyauchi

Inventor
Hachioji, JP

Overview

7→
Patents
1977–1985
Patent span
Physics
Primary field (CPC G)

Patents· 7 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 transducer70%
G06FElectric digital data processing10%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light10%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
PatentTitleYear
4,556,965'Information recording apparatus having automatic focusing'19854,308,612'Optical information recording apparatus including error checking circuit'19814,301,527'Optical head for a videodisc recorder/player'19814,298,974'Optical head for a videodisc player/recorder'19814,283,785'Optical information recording apparatus'19814,241,240'Optical information recording apparatus'19804,051,528'Apparatus for optically reconstructing information'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1985Patents assigned to HITACHI LTD (7)· patent assignee history
1977–1985Based in Hachioji, JP· patent location history
1981Based in Hachiouji, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD71977–1985
Locations
LocationPatentsSpan
Hachioji, JP61977–1985
Hachiouji, JP11981