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For the Inventor, By the Inventor

Kokubunji, Japan

Kenzo Ichikawa

USPTO Granted Patents = 6 

Average Co-Inventor Count = 1.7

ph-index = 2

Forward Citations = 58(Granted Patents)


Location History:

  • Tokyo, JP (2003)
  • Kokubunji-shi, JP (2017)
  • Kokubunji, JP (2013 - 2020)

Company Filing History:

goldMedal5 out of 5,229 
 
Casio Computer Co., Ltd.
 patents
silverMedal1 out of 30 
 
Casio Computerco., Ltd.
 patents

Years Active: 2003-2025

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6 patents (USPTO):Explore Patents
1. 12512085 - Keyboard instrument (2025-12-30),
2. 12315474 - Keyboard instrument (2025-05-27),
3. 10852770 - Electronic device having a waterproof structure (2020-12-01),
4. 9693731 - Electronic device (2017-07-04),
5. 8422246 - Electronic apparatus (2013-04-16),
6. 6644455 - Rental system, machine and method for providing rental items (2003-11-11),
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