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For the Inventor, By the Inventor

Miyagi, Japan

Etsuo Otsuki

This inventor holds 3 USPTO granted patents and 3 published patent applications. Top assignee: Tokin Corporation. Active years: 1990-1997.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Etsuo Otsuki. Retrieved from https://idiyas.com/inventor/etsuo-otsuki

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

USPTO Granted Patents = 3 

% Patents Active = 100.0

Average Co-Inventor Count = 2.4

ph-index = 3

Forward Citations = 29(Granted Patents)


Location History:

  • Miyagi, JP (1990 - 1991)
  • Sendai, JP (1997)

Company Filing History:

goldMedal3 out of 162 
 
Tokin Corporation
 patents

Years Active: 1990-1997

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3 patents (USPTO):Explore Patents
1. 5614805 - Method and apparatus for charging a secondary battery by supplying (1997-03-25),
2. 5011552 - Method for producing a rare earth metal-iron-boron permanent magnet by (1991-04-30),
3. 4898625 - Method for producing a rare earth metal-iron-boron permanent magnet by (1990-02-06),
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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