Osaka, Japan

Kiyohiko Takagi

This inventor holds 4 USPTO granted patents and 1 published patent application and 1 EPO patent. Top assignees: Panasonic Corporation, Matsushita Electric Industrial Co., Ltd.. Active years: 2005-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kiyohiko Takagi. Retrieved from https://idiyas.com/inventor/kiyohiko-takagi

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

USPTO Granted Patents = 4 

% Patents Active = 75.0

 

Average Co-Inventor Count = 2.7

ph-index = 2

Forward Citations = 32(Granted Patents)


Company Filing History:


Years Active: 2005-2013

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4 patents (USPTO):Explore Patents

Title: Kiyohiko Takagi: Innovator in Organic EL Technology

Introduction

Kiyohiko Takagi is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of organic electroluminescent (EL) devices, holding a total of 4 patents. His innovative work has paved the way for advancements in display technology.

Latest Patents

Takagi's latest patents include groundbreaking technologies in organic EL devices. One of his notable patents is for an "Organic EL device and method for manufacturing same." This patent describes a manufacturing method that involves providing a substrate with a pixel electrode, forming a liquid repellent organic film, and selectively radiating light to oxidize the pixel electrode's surface. This process allows for the application of an organic functional material to create an organic functional layer on the pixel electrode.

Another significant patent is for an "Organic EL display panel and manufacturing method thereof." This invention provides a technique for easily forming a bank with a lyophilic lower part of the inner lateral surface. The organic EL display panel contains multiple organic EL elements, each comprising a substrate, an anode, an organic light-emitting layer, and a cathode. The innovative design regulates the area of the organic light-emitting layer, enhancing the efficiency of the display.

Career Highlights

Throughout his career, Kiyohiko Takagi has worked with renowned companies such as Panasonic Corporation and Matsushita Electric Industrial Co., Ltd. His experience in these organizations has contributed to his expertise in developing advanced technologies in the field of organic EL devices.

Collaborations

Takagi has collaborated with notable colleagues, including Shuhei Nakatani and Yoshihiro Yanagi. These partnerships have fostered a collaborative environment that has led to innovative breakthroughs in their respective fields.

Conclusion

Kiyohiko Takagi's contributions to organic EL technology have significantly impacted the industry. His patents and collaborations reflect his dedication to innovation and excellence in the field. His work continues to inspire future advancements in 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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