Toyonaka, Japan

Kenji Okumoto

This inventor holds 3 USPTO granted patents. Top assignees: Daicel Chemical Industries, Ltd., Other. Active years: 2004-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kenji Okumoto. Retrieved from https://idiyas.com/inventor/kenji-okumoto-k100zbvx

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

Calculating rank

Average Co-Inventor Count = 4.0

ph-index = 3

Forward Citations = 10(Granted Patents)


Company Filing History:

goldMedal2 out of 1,165 
 
Daicel Chemical Industries, Ltd.
 patents
silverMedal3 out of 834,659 
Other
 patents
where one patent can have more than one assignee

Years Active: 2004-2007

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3 patents (USPTO):Explore Patents

Title: Kenji Okumoto: Innovator in Organic Electroluminescent Devices

Introduction

Kenji Okumoto is a notable inventor based in Toyonaka, Japan. He has made significant contributions to the field of organic electroluminescent devices, holding a total of 3 patents. His work focuses on enhancing the performance and durability of these devices through innovative materials.

Latest Patents

One of Okumoto's latest patents involves a vinyl polymer and an organic electroluminescent device. This device features an organic layer situated between a pair of electrodes. The organic layer, particularly the hole-transporting layer, incorporates a polymer of a vinyl compound. The polymer is characterized by a glass transition temperature ranging from about 200 to 250°C, which provides high heat resistance. This advancement significantly improves the heat resistance of organic EL devices, making them more reliable and efficient.

Career Highlights

Throughout his career, Kenji Okumoto has worked with prominent companies, including Daicel Chemical Industries, Ltd. His expertise in polymer chemistry and organic electronics has positioned him as a key figure in the development of advanced materials for electronic applications.

Collaborations

Okumoto has collaborated with esteemed colleagues such as Yasuhiko Shirota and Yutaka Ohsedo. These partnerships have fostered innovation and contributed to the advancement of technology in the field of organic electronics.

Conclusion

Kenji Okumoto's contributions to organic electroluminescent devices highlight his role as a leading inventor in the industry. His innovative approaches and collaborations continue to influence the development of advanced electronic materials.

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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