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Osamu Kumasaka

USPTO Granted Patents = 6

Average Co-Inventor Count = 4.1

ph-index = 3

Forward Citations = 24(Granted Patents)

Location History:

Koufu, JP (2003 - 2008)
Saitama, JP (2009)
Tsurugashima, JP (2010)

Company Filing History:

Pioneer Corporation

Years Active: 2003-2010

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6 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7663124 - Beam recording method and device (2010-02-16),

2. 7486011 - Thread-type electron emission element (2009-02-03),

3. 7336585 - Information recording apparatus and method for recording information and information recording medium (2008-02-26),

4. 7203144 - Information recording apparatus and method for recording information patterns with a deflecting beam irradiated to a recording medium (2007-04-10),

5. 6686597 - Substrate rotating device, and manufacturing method and apparatus of recording medium master (2004-02-03),

6. 6650611 - Master disc manufacturing apparatus (2003-11-18),

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