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For the Inventor, By the Inventor

Fukushima-ken, Japan

Hiroki Hirashima

USPTO Granted Patents = 3

Average Co-Inventor Count = 2.0

ph-index = 3

Forward Citations = 13(Granted Patents)


Location History:

  • Fukushima, JP (2003)
  • Fukushima-ken, JP (2006 - 2010)

Company Filing History:

goldMedal2 out of 4,048 
 
Alps Electric Co., Ltd.
 patents
silverMedal1 out of 58,130 
 
Sony Corporation
 patents
bronzeMedal1 out of 832,761 
Other
 patents
where one patent can have more than one assignee

Years Active: 2003-2010

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3 patents (USPTO):Explore Patents
1. 7755227 - Vibration generator (2010-07-13),
2. 7080306 - Disk device with improved error-correction capability (2006-07-18),
3. 6535346 - Dual head disk drive unit for differing recording densities (2003-03-18),
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