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Hitachi, Japan

Tatsuya Ohtaka

This inventor holds 8 USPTO granted patents and 1 EPO patent. Top assignees: Hitachi Cable, Inc., Asmo Co., Ltd., Nec Electronics Corporation. Active years: 1999-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tatsuya Ohtaka. Retrieved from https://idiyas.com/inventor/tatsuya-ohtaka

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 8

% Patents Active = 25.0


Average Co-Inventor Count = 3.8

ph-index = 5

Forward Citations = 166(Granted Patents)


Location History:

  • Ibaraki-ken, JP (1999)
  • Ibaraki, JP (2003)
  • Tokyo, JP (2005 - 2007)
  • Hitachi, JP (2008 - 2012)

Company Filing History:

goldMedal8 out of 836 
 
Hitachi Cable, Inc.
 patents
silverMedal2 out of 800 
 
Asmo Co., Ltd.
 patents
bronzeMedal1 out of 2,467 
 
Nec Electronics Corporation
 patents
where one patent can have more than one assignee

Years Active: 1999-2012

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8 patents (USPTO):Explore Patents
1. 8299807 - Foreign object detection sensor and method for manufacturing the same (2012-10-30),
2. 7534957 - Cord switch and detecting apparatus using the same (2009-05-19),
3. 7424830 - Torque sensor (2008-09-16),
4. 7236373 - Electronic device capable of preventing electromagnetic wave from being radiated (2007-06-26),
5. 7217370 - Wiring board and process for producing the same (2007-05-15),
6. 6924987 - Wiring board and process for producing the same (2005-08-02),
7. 6509643 - Tab tape with stiffener and semiconductor device using same (2003-01-21),
8. 6002167 - Semiconductor device having lead on chip structure (1999-12-14),

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Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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