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For the Inventor, By the Inventor

Kounan, Japan

Hirohito Ito

This inventor holds 7 USPTO granted patents and 1 EPO patent. Top assignee: Ngk Spark Plug Company, Limited. Active years: 1999-2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirohito Ito. Retrieved from https://idiyas.com/inventor/hirohito-ito-9zuh5a2v

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

USPTO Granted Patents = 7

% Patents Active = 100.0


Average Co-Inventor Count = 2.5

ph-index = 4

Forward Citations = 54(Granted Patents)


Location History:

  • Nagoya, JP (1999 - 2001)
  • Konan, JP (2003 - 2004)
  • Kounan, JP (2008 - 2009)

Company Filing History:

goldMedal7 out of 2,606 
 
Ngk Spark Plug Company, Limited
 patents

Years Active: 1999-2009

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7 patents (USPTO):Explore Patents
1. 7615915 - Spark plug (2009-11-10),
2. 7352121 - Spark plug (2008-04-01),
3. 6688932 - Method for manufacturing spark plug and caulking metallic mold (2004-02-10),
4. 6559579 - Alumina-based sintered body insulator for spark plugs (2003-05-06),
5. 6265816 - Spark plug, insulator for spark plug and process for fabricating the insulator (2001-07-24),
6. 6214150 - Method of transfer printing a ceramic spark plug insulator (2001-04-10),
7. 5976674 - Transfer sheet, a method of transferring a figuration therefrom and a (1999-11-02),

I specialize in the sphere of innovations, inventions, inventors, patent attorneys, assignees, and patents.

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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