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For the Inventor, By the Inventor

Otsu, Japan

Yasunori Ichihashi

This inventor holds 8 USPTO granted patents and 5 published patent applications and 8 EPO patents. Top assignee: Toray Industries, Inc.. Active years: 2013-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasunori Ichihashi. Retrieved from https://idiyas.com/inventor/yasunori-ichihashi

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

Calculating rank
USPTO Granted Patents = 8 

% Patents Active = 87.5

 

Average Co-Inventor Count = 3.7

ph-index = 1

Forward Citations = 7(Granted Patents)


Company Filing History:

goldMedal8 out of 3,586 
 
Toray Industries, Inc.
 patents

Years Active: 2013-2026

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8 patents (USPTO):Explore Patents
1. 12583875 - Pyrromethene-boron complex, color conversion composition, color conversion film, light source unit, display, and illumination device (2026-03-24),
2. 12161045 - Pyrromethene boron complex, light emitting element using same, display device, lighting device, color conversion composition, color conversion film, color conversion substrate, light source unit and display (2024-12-03),
3. 11957020 - Light-emitting device, display and color conversion substrate (2024-04-09),
4. 11149196 - Pyrromethene-boron complex, color-changing composition, color-changing film, light source unit including same, display, and lighting (2021-10-19),
5. 10907094 - Pyrromethene-boron complex, color conversion composition, color conversion film, light source unit, display, and illumination apparatus (2021-02-02),
6. 10836959 - Pyrromethene-boron complex, color-changing composition, color-changing film, light source unit including same, display, and lighting (2020-11-17),
7. 9935273 - Fluoranthene derivative, light-emitting device material containing same, and light-emitting device (2018-04-03),
8. 8502201 - Light-emitting element (2013-08-06),

Title: Yasunori Ichihashi: Innovator in Light Emitting Technologies

Introduction

Yasunori Ichihashi is a prominent inventor based in Otsu, Japan. He has made significant contributions to the field of light-emitting technologies, holding a total of 8 patents. His work focuses on developing advanced materials and devices that enhance light emission efficiency and color purity.

Latest Patents

Ichihashi's latest patents include a pyrromethene boron complex, which serves as a red light fluorescent material with improved emission efficiency and color purity. This complex is represented by a specific general formula and meets certain criteria for performance. Additionally, he has developed a light-emitting device that incorporates multiple partially drivable light sources and a color conversion component. This component is designed to convert incident light from the sources and emit outgoing light in a different wavelength region, utilizing a pyrromethene derivative.

Career Highlights

Yasunori Ichihashi is currently associated with Toray Industries, Inc., where he continues to innovate in the field of light-emitting technologies. His work has garnered attention for its potential applications in various display and lighting devices.

Collaborations

Ichihashi collaborates with notable colleagues, including Daisaku Tanaka and Takeshi Arai. Their combined expertise contributes to the advancement of technologies in their field.

Conclusion

Yasunori Ichihashi's contributions to light-emitting technologies demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of materials science and their applications in modern 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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