Toyokazu Takahashi

USPTO Granted Patents = 5 (Patent Applications = 1)

Average Co-Inventor Count = 1.9

ph-index = 2

Forward Citations = 16(Granted Patents)

Location History:

Kanagawa, JP (2004 - 2006)
Tokyo, JP (2010 - 2023)

Company Filing History:

Sony Group Corporation

patents

Years Active: 2004-2023

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5 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11662629 - Liquid crystal light control device, and method of manufacturing liquid crystal light control device (2023-05-30),

2. 8125876 - Objective lens, optical pickup apparatus using the same, optical recording/reproduction apparatus using the same, and method of correcting aberration using the same (2012-02-28),

3. 7826328 - Optical pickup device and optical disk apparatus using the same (2010-11-02),

4. 7050379 - Optical pickup-use object lens, optical pickup and optical disk unit (2006-05-23),

5. 6819491 - Objective lens unit for optical pickup, optical pickup and disc driving device (2004-11-16),

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1 patent pending:

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