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For the Inventor, By the Inventor

Sano, Japan

Yoshiji Kawamura

This inventor holds 7 USPTO granted patents and 1 published patent application. Top assignees: Fujinon Corporation, Fujifilm Corporation, Fujinon Sano Corporation. Active years: 2006-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshiji Kawamura. Retrieved from https://idiyas.com/inventor/yoshiji-kawamura

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 = 14.3

Average Co-Inventor Count = 1.4

ph-index = 2

Forward Citations = 10(Granted Patents)


Location History:

  • Tochigi, JP (2006 - 2010)
  • Sano, JP (2009 - 2012)

Company Filing History:

goldMedal5 out of 695 
 
Fujinon Corporation
 patents
silverMedal1 out of 16,980 
 
Fujifilm Corporation
 patents
bronzeMedal1 out of 4 
 
Fujinon Sano Corporation
 patents

Years Active: 2006-2012

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7 patents (USPTO):Explore Patents
1. 8094246 - Polarization conversion device, polarized illumination optical device, and liquid crystal projector (2012-01-10),
2. 8035759 - Polarization conversion device, polarized illumination optical device, and liquid crystal projector (2011-10-11),
3. 8031288 - Polarization conversion element, polarized light illumination optical element, and liquid crystal projector (2011-10-04),
4. 7715301 - Wave plate (2010-05-11),
5. 7612939 - Transmissive phase plate, polarized beam splitter, and projection display (2009-11-03),
6. 7538944 - Polarizing filter, and method for fabricating same (2009-05-26),
7. 7130123 - Polarization conversion element and optical system containing such polarization conversion element (2006-10-31),
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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