Yokohama, Japan

Eiji Matsuzaki

This inventor holds 34 USPTO granted patents and 4 published patent applications, primarily in Organic Electroluminescence. Top assignees: Hitachi, Ltd., Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.. Active years: 1990-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Eiji Matsuzaki. Retrieved from https://idiyas.com/inventor/eiji-matsuzaki

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

USPTO Granted Patents = 34 

% Patents Active = 97.1

Average Co-Inventor Count = 4.1

ph-index = 13

Forward Citations = 378(Granted Patents)


Company Filing History:


Years Active: 1990-2019

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Areas of Expertise:
Organic EL Display
Manufacturing Method
Gel-State Encapsulant
Desiccant Incorporation
Thin Film Transistor
Electronic Apparatus
Gas Discharge Panel
Sputtering Method
Wiring Structure
Plasma Display
Electroluminescence Device
High Molecular-Weight Medium
34 patents (USPTO):Explore Patents

Title: Innovator Spotlight: Eiji Matsuzaki and His Contributions to Organic EL Display Technology

Introduction: Eiji Matsuzaki, a prominent inventor based in Yokohama, Japan, holds an impressive portfolio of 34 patents. His work primarily focuses on organic electroluminescent (EL) display technologies, where he has made significant advancements that enhance display performance and durability.

Latest Patents: One of Matsuzaki's latest inventions involves an organic EL display utilizing a gel-state encapsulant that incorporates a desiccant and a high molecular-weight medium. This innovative design includes a sealing substrate oppositely facing an element substrate, which features organic EL layers arranged in a matrix. The encapsulation process involves filling the inner space between the substrates with a gel-state desiccant. This unique approach ensures that moisture intrusion is minimized while simultaneously enhancing the mechanical strength of the display device. By completely filling the inner space with the gel-state desiccant, Matsuzaki has successfully eliminated gaps that can compromise performance.

Career Highlights: Throughout his career, Eiji Matsuzaki has been affiliated with notable organizations, such as Hitachi, Ltd. and Hitachi Displays, Ltd. His contributions have been pivotal in advancing display technologies, positioning him as a leading figure in the field of organic EL devices. His innovative mindset and technical proficiency have solidified his reputation as a noteworthy inventor.

Collaborations: Matsuzaki has engaged with talented colleagues throughout his career, including Satoru Kase and Yoshinori Ishii. These collaborations have fostered an environment of creativity and innovation, further pushing the boundaries of display technology.

Conclusion: Eiji Matsuzaki’s contributions to organic EL display technology through his numerous patents demonstrate his role as a significant innovator in the field. His work not only enhances the functionality of these devices but also sets new standards for durability and performance in the competitive landscape of display technologies. As he continues to innovate, Matsuzaki's legacy will undoubtedly leave a lasting impact on 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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