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For the Inventor, By the Inventor

Yamanashi-ken, Japan

Yoichi Okumura

USPTO Granted Patents = 3

Average Co-Inventor Count = 3.7

ph-index = 2

Forward Citations = 6(Granted Patents)


Location History:

  • Tsurugashima, JP (2004)
  • Saitama, JP (2005)
  • Yamanashi-ken, JP (2009)

Company Filing History:

goldMedal3 out of 2,646 
 
Pioneer Corporation
 patents

Years Active: 2004-2009

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3 patents (USPTO):Explore Patents
1. 7524612 - Information recording medium and process for producing the same (2009-04-28),
2. 6906995 - Information read/write medium (2005-06-14),
3. 6724716 - Phase-change type optical storage medium having multiple recording layers (2004-04-20),
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