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For the Inventor, By the Inventor

Yokkaichi, Japan

Kazuhiro Sakai

This inventor holds 6 USPTO granted patents and 3 EPO patents. Top assignees: Mitsubishi Materials Corporation, Hi-Silicon Co., Ltd.. Active years: 1994-2016.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuhiro Sakai. Retrieved from https://idiyas.com/inventor/kazuhiro-sakai-p68ckge9

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

Calculating rank
USPTO Granted Patents = 6

% Patents Active = 83.3


Average Co-Inventor Count = 2.6

ph-index = 2

Forward Citations = 18(Granted Patents)


Company Filing History:

goldMedal5 out of 1,557 
 
Mitsubishi Materials Corporation
 patents
silverMedal1 out of 2 
 
Hi-Silicon Co., Ltd.
 patents

Years Active: 1994-2016

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6 patents (USPTO):Explore Patents
1. 9238876 - Method of washing polycrystalline silicon, apparatus for washing polycrystalline silicon, and method of producing polycrystalline silicon (2016-01-19),
2. 8875720 - Apparatus and method for washing polycrystalline silicon (2014-11-04),
3. 8372372 - Clean bench and method of producing raw material for single crystal silicon (2013-02-12),
4. 7976599 - Clean bench and method of producing raw material for single crystal silicon (2011-07-12),
5. 7905963 - Apparatus and method for washing polycrystalline silicon (2011-03-15),
6. 5346557 - Process for cleaning silicon mass and the recovery of nitric acid (1994-09-13),
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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