Kanagawa, Japan

Tomokazu Umemoto

This inventor holds 7 USPTO granted patents and 1 published patent application and 3 EPO patents. Top assignees: Mitsubishi Chemical Corporation, Oji Holdings Corporation. Active years: 2014-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tomokazu Umemoto. Retrieved from https://idiyas.com/inventor/tomokazu-umemoto

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 = 100.0

 

Average Co-Inventor Count = 5.5

ph-index = 2

Forward Citations = 11(Granted Patents)


Location History:

  • Kanagawa, JP (2014 - 2023)
  • Tokyo, JP (2024)

Company Filing History:


Years Active: 2014-2024

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7 patents (USPTO):Explore Patents

Title: An Insight into the Innovations of Tomokazu Umemoto

Introduction

Tomokazu Umemoto, a distinguished inventor based in Kanagawa, Japan, has made significant contributions to the field of organic electroluminescence. With a total of seven patents to his name, Umemoto has focused on developing advanced materials that enhance the performance and durability of organic electroluminescent devices. His innovative approach has positioned him as a key figure in the realm of light-emitting technology.

Latest Patents

Umemoto's latest patents demonstrate his expertise in polymer science and organic electronics. His notable inventions include:

1. Polymer, composition for organic electroluminescent element.

2. Organic electroluminescent element.

3. Organic EL display device.

4. Organic EL lighting.

5. Manufacturing method for organic electroluminescent element.

These patents feature a highly durable polymer that exhibits a superior hole-injection/transport capacity. The polymer's structure includes specific repeating units, allowing for the incorporation of various aromatic hydrocarbon groups and substituents that enhance its performance in organic electroluminescent applications.

Career Highlights

Throughout his career, Tomokazu Umemoto has worked with reputable companies, including Mitsubishi Chemical Corporation and Oji Holdings Corporation. His experiences at these organizations have equipped him with a robust understanding of polymer chemistry and electroluminescent technology, enabling him to drive innovations that have substantial implications for the industry.

Collaborations

Collaboration has played an essential role in Umemoto's career. He has worked alongside esteemed colleagues, such as Hideki Gorohmaru and Koichiro Iida. These partnerships have fostered an environment of creativity and knowledge sharing, leading to groundbreaking advancements in the field of organic electronics.

Conclusion

Tomokazu Umemoto stands out as a pioneering inventor in the organic electroluminescent sphere. His seven patents reflect a commitment to innovation, with a focus on creating materials that improve the efficiency and durability of electronic devices. As the field continues to evolve, Umemoto's contributions will undoubtedly leave a lasting impact on the future of lighting and display technologies.

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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