Yamatokoriyama, Japan

Yumi Yoshimura

This inventor holds 4 USPTO granted patents and 1 published patent application. Top assignee: Sharp Kabushiki Kaisha Corporation. Active years: 1992-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yumi Yoshimura. Retrieved from https://idiyas.com/inventor/yumi-yoshimura

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 = 100.0

Average Co-Inventor Count = 4.0

ph-index = 4

Forward Citations = 89(Granted Patents)


Location History:

  • Yamatokooriyama, JP (1992 - 1993)
  • Yamatokoriyama, JP (1993 - 1994)

Company Filing History:


Years Active: 1992-1994

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4 patents (USPTO):Explore Patents

Title: Yumi Yoshimura: Innovator in Liquid Crystal Display Technology

Introduction

Yumi Yoshimura is a prominent inventor based in Yamatokoriyama, Japan. She has made significant contributions to the field of liquid crystal display (LCD) technology. With a total of 4 patents to her name, her work has advanced the understanding and functionality of LCD devices.

Latest Patents

Yumi's latest patents include innovative solutions for improving liquid crystal display devices. One of her notable inventions is a liquid crystal display device with positive and negative compensating. This invention addresses the issue of viewing angle limitations in LCDs that use uniaxially drawn polymer films as phase difference plates. By preparing polymer films from polycarbonate and polystyrene with differing optical properties, she has developed a method to enhance optical compensation in LCD cells.

Another significant patent is for a liquid crystal display that incorporates positive and negative uniaxially oriented polymer films. In this design, a series of polarizers and polymer films are arranged to optimize the optical performance of supertwist type liquid crystal displays. Each polymer film is carefully selected for its optical anisotropy, contributing to improved display quality.

Career Highlights

Yumi Yoshimura is currently employed at Sharp Kabushiki Kaisha Corporation, where she continues to innovate in the field of display technology. Her work has not only contributed to the advancement of LCDs but has also positioned her as a key figure in the industry.

Collaborations

Throughout her career, Yumi has collaborated with esteemed colleagues such as Toshiyuki Yoshimizu and Hiroshi Ohnishi. These partnerships have fostered a creative environment that has led to groundbreaking advancements in liquid crystal technology.

Conclusion

Yumi Yoshimura's contributions to liquid crystal display technology exemplify her innovative spirit and dedication to improving display quality. Her patents reflect a deep understanding of optical properties and their application in modern technology. As she continues her work at Sharp Kabushiki Kaisha Corporation, her impact on the industry is sure to grow.

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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