Tokyo, Japan

Keiji Horikawa

This inventor holds 5 USPTO granted patents and 1 published patent application. Top assignee: Joled Inc.. Active years: 2017-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiji Horikawa. Retrieved from https://idiyas.com/inventor/keiji-horikawa-c4n07chy

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

Calculating rank
USPTO Granted Patents = 5 

% Patents Active = 100.0

Average Co-Inventor Count = 1.8

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 2017-2021

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5 patents (USPTO):Explore Patents

Title: Keiji Horikawa: Innovator in Organic Electroluminescence Technology

Introduction

Keiji Horikawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of organic electroluminescence (EL) technology. With a total of 5 patents to his name, Horikawa continues to push the boundaries of innovation in display technology.

Latest Patents

Horikawa's latest patents include advancements in organic EL display panels. One notable patent describes an organic EL display panel that features a multilayer sealing layer. This panel consists of a substrate, multiple organic EL elements, and a sealing layer arranged in a specific order. The sealing layer is designed with a three-layered structure, where each layer comprises amorphous silicon nitride. The composition of these layers is meticulously crafted to enhance the performance of the display. Another patent focuses on an organic EL display panel that includes a multi-layered wiring laminate and a resin sealing layer, which provides improved durability and functionality.

Career Highlights

Horikawa has established himself as a key figure in the development of organic EL technology. His work at Joled Inc. has been instrumental in advancing the capabilities of display panels. His innovative designs and methods have garnered attention in the industry, showcasing his expertise and commitment to excellence.

Collaborations

Throughout his career, Horikawa has collaborated with talented individuals such as Akifumi Okigawa and Kenji Harada. These partnerships have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.

Conclusion

Keiji Horikawa's contributions to organic electroluminescence technology have made a lasting impact on the industry. His innovative patents and collaborative efforts continue to shape the future of display technology.

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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