Wakayama, Japan

Yoshihiro Ueno

This inventor holds 14 USPTO granted patents and 1 EPO patent, primarily in Electrophotographic Toner. Top assignee: Kao Corporation. Active years: 1995-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshihiro Ueno. Retrieved from https://idiyas.com/inventor/yoshihiro-ueno-hqj2tsq3

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

Calculating rank

% Patents Active = 78.6


Average Co-Inventor Count = 2.9

ph-index = 4

Forward Citations = 39(Granted Patents)


Company Filing History:


Years Active: 1995-2014

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Areas of Expertise:
Electrophotographic Toner
Polyester
Resin Binder
Toner Composition
Nonmagnetic Black Toner
Electrostatic Development
Image Development
Developer Composition
14 patents (USPTO):Explore Patents

Title: Innovations of Yoshihiro Ueno

Introduction

Yoshihiro Ueno is a prominent inventor based in Wakayama, Japan. He has made significant contributions to the field of electrophotography, holding a total of 14 patents. His work focuses on developing advanced materials for toners used in various printing technologies.

Latest Patents

Ueno's latest patents include innovative formulations for electrophotographic toners. One of his notable inventions is a resin binder for use in a toner, which is derived from a polycondensation resin. This resin is created by polycondensing an alcohol component that includes an aliphatic polyhydric alcohol with secondary carbon atoms and a carboxylic acid component. This toner is particularly effective in developing latent images formed through electrophotography and related methods. Another significant patent involves a polyester for toner, which is also obtained through polycondensation. This polyester incorporates a fumaric acid-modified rosin and serves as a resin binder for toners used in electrostatic latent image development.

Career Highlights

Yoshihiro Ueno is currently employed at Kao Corporation, where he continues to innovate in the field of toner technology. His expertise and dedication have led to advancements that enhance the quality and efficiency of printing processes.

Collaborations

Ueno has collaborated with notable colleagues, including Tetsuhiro Semura and Yoshitomo Kimura. Their combined efforts contribute to the ongoing development of cutting-edge technologies in the industry.

Conclusion

Yoshihiro Ueno's contributions to toner technology and electrophotography demonstrate his commitment to innovation. His patents reflect a deep understanding of materials science and a drive to improve printing technologies.

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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