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For the Inventor, By the Inventor

Suwa, Japan

Koji Yasukawa

This inventor holds 7 USPTO granted patents. Top assignee: Seiko Epson Corporation. Active years: 2010-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Koji Yasukawa. Retrieved from https://idiyas.com/inventor/koji-yasukawa-2hm0opae

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

Calculating rank
USPTO Granted Patents = 7

% Patents Active = 85.7

Average Co-Inventor Count = 2.0

ph-index = 4

Forward Citations = 45(Granted Patents)


Company Filing History:

goldMedal7 out of 34,305 
 
Seiko Epson Corporation
 patents

Years Active: 2010-2014

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7 patents (USPTO):Explore Patents
1. 8922112 - Light emitting device (2014-12-30),
2. 8415685 - Light-emitting element, light-emitting apparatus, display, and electronic device (2013-04-09),
3. 8314419 - Light-emitting element, light-emitting device, display, and electronic equipment (2012-11-20),
4. 7960912 - Light-emitting device that includes a plurality of light-emitting layers stacked on top of each other, display, and electronic apparatus (2011-06-14),
5. 7947992 - Light-emitting element, display device, and electronic apparatus (2011-05-24),
6. 7863814 - Organic electroluminescent device comprising a stack partition structure (2011-01-04),
7. 7755281 - Electroluminescent device having island-shaped barrier layers (2010-07-13),

Title: The Innovative Contributions of Koji Yasukawa

Introduction

Koji Yasukawa is a prominent inventor based in Suwa, Japan. He has made significant contributions to the field of light-emitting devices, holding a total of 7 patents. His work has been instrumental in advancing technology in this area, particularly through his innovative designs and applications.

Latest Patents

Yasukawa's latest patents include a groundbreaking light-emitting device. This device features a light-emitting element that comprises a reflective layer within a substrate, a first electrode that passes through the reflective layer, and a second electrode with translucent reflectivity. The design incorporates multiple organic material layers, including a light-emitting layer situated between the first and second electrodes. Notably, the first organic material layer has varying thicknesses in different sub-regions of the light-emitting region, enhancing its functionality.

Another significant patent involves a light-emitting element that includes a cathode, an anode, and a light-emitting portion situated between them. This element is designed to emit light when energized, with a hole-injection layer that is in direct contact with the anode and the light-emitting layer. This layer is primarily composed of a benzidine derivative, showcasing Yasukawa's innovative approach to improving light-emitting technologies.

Career Highlights

Koji Yasukawa is currently associated with Seiko Epson Corporation, where he continues to push the boundaries of innovation in light-emitting devices. His expertise and dedication to research have led to numerous advancements in the field, making him a valuable asset to his company and the industry at large.

Collaborations

Yasukawa has collaborated with notable colleagues, including Masayuki Mitsuya and Hidetoshi Yamamoto. These partnerships have fostered a creative environment that encourages the exchange of ideas and the development of cutting-edge technologies.

Conclusion

Koji Yasukawa's contributions to the field of light-emitting devices are noteworthy and impactful. His innovative patents and collaborations reflect his commitment to advancing technology. As he continues his work at Seiko Epson Corporation, the future of light-emitting technology looks promising.

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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