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For the Inventor, By the Inventor

Nagoya, Japan

Naoki Hirai

This inventor holds 6 USPTO granted patents and 5 EPO patents. Top assignee: Ngk Insulators, Inc.. Active years: 2012-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Naoki Hirai. Retrieved from https://idiyas.com/inventor/naoki-hirai

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

USPTO Granted Patents = 6

% Patents Active = 83.3


Average Co-Inventor Count = 1.6

ph-index = 1

Forward Citations = 4(Granted Patents)


Company Filing History:

goldMedal6 out of 5,075 
 
Ngk Insulators, Inc.
 patents

Years Active: 2012-2015

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6 patents (USPTO):Explore Patents
1. 9026388 - Method for determining drop in capacity of sodium—sulfur battery (2015-05-05),
2. 8957640 - Method for accurately and precisely calculating state of charge of a sodium-sulfur battery (2015-02-17),
3. 8914243 - Method for calculating number of healthy strings of sodium-sulfur battery and failure detection method using same (2014-12-16),
4. 8866446 - End-of-discharge voltage correction device and end-of-discharge voltage correction method (2014-10-21),
5. 8257846 - Temperature increasing method for sodium-sulfur battery (2012-09-04),
6. 8163407 - Method for controlling sodium-sulfur battery (2012-04-24),
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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