Tokyo, Japan

Seiichirou Yokoya

This inventor holds 2 USPTO granted patents and 3 published patent applications and 3 EPO patents. Top assignee: Sumitomo Chemical Company, Limited. Active years: 2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Seiichirou Yokoya. Retrieved from https://idiyas.com/inventor/seiichirou-yokoya

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

USPTO Granted Patents = 2 

% Patents Active = 100.0

 

Average Co-Inventor Count = 3.4

ph-index = 1

Forward Citations = 1(Granted Patents)


Location History:

  • Tokyo, JP (2018)
  • Ibaraki, JP (2018)

Company Filing History:


Years Active: 2018

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2 patents (USPTO):Explore Patents

Title: Seiichirou Yokoya: Innovator in Light Emitting Devices

Introduction

Seiichirou Yokoya is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of light-emitting devices, holding a total of 2 patents. His work focuses on innovative compositions that enhance the performance of phosphorescent compounds.

Latest Patents

Yokoya's latest patents include a composition and light-emitting device that utilizes a phosphorescent compound with a specific emission spectrum. The first patent describes a composition containing a phosphorescent compound with an emission spectrum whose maximum peak wavelength is between 380 nm and less than 495 nm, along with two or more phosphorescent compounds with emission spectra between 495 nm and less than 750 nm. The second patent also involves a composition with a first phosphorescent compound having an emission spectrum from 400 nm to less than 480 nm and a second phosphorescent compound with an emission spectrum from 480 nm to less than 680 nm.

Career Highlights

Seiichirou Yokoya is currently employed at Sumitomo Chemical Company, Limited, where he continues to develop innovative technologies in the field of light-emitting devices. His expertise and research have positioned him as a key figure in advancing phosphorescent materials.

Collaborations

Yokoya collaborates with notable colleagues such as Toshiaki Sasada and Makoto Anryu, contributing to a dynamic research environment that fosters innovation.

Conclusion

Seiichirou Yokoya's work in the field of light-emitting devices showcases his dedication to innovation and excellence. His patents reflect a commitment to advancing technology in phosphorescent compounds, making a significant impact in the industry.

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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