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Inventor

Sakashi Ootaki

Inventor
Saitama, JP

Overview

9→
Patents
1991–2000
Patent span
Physics
Primary field (CPC G)

Patents· 9 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 transducer64%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein36%
PatentTitleYear
6,151,154'Optical pickup, aberration correction unit and astigmatism measurement method'20006,078,554'Wave-front aberration compensation unit, wave-front aberration compensation device, and optical pickup'20005,949,748'Optical write/read head with a pretilted liquid crystal panel'19995,936,923'Optical pickup with aberration correcting panel including a liquid crystal'19995,901,131'Optical pickup used with both DVD and CD'19995,734,637'Optical pickup used with both DVD and CD'19985,673,246'Optical pickup device'19975,459,593'Reflection type liquid crystal display apparatus which prevents rotation of the polarization plane'19955,009,490'Photo-conductive liquid crystal light valve'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–2000Patents assigned to PIONEER ELECTRONIC CORP (9)· patent assignee history
1991–2000Based in Saitama, JP· patent location history
1995Based in Tsuragashima, JP· patent location history
1997–1999Based in Tsurugashima, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
PIONEER ELECTRONIC CORP91991–2000
Locations
LocationPatentsSpan
Saitama, JP41991–2000
Tsurugashima, JP41997–1999
Tsuragashima, JP11995