Tokyo, Japan

Shigeharu Yoshikawa

This inventor holds 2 USPTO granted patents. Top assignee: Mitsubishi Denki Kabushiki Kaisha. Active years: 2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeharu Yoshikawa. Retrieved from https://idiyas.com/inventor/shigeharu-yoshikawa

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


% Patents Active = 100.0

Average Co-Inventor Count = 5.5

ph-index = 2

Forward Citations = 18(Granted Patents)


Company Filing History:


Years Active: 2000

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2 patents (USPTO):Explore Patents

Title: Shigeharu Yoshikawa: Innovator in Projection Technology

Introduction

Shigeharu Yoshikawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of projection technology, particularly in the development of liquid crystal display devices. With a total of 2 patents, his work has had a notable impact on the industry.

Latest Patents

Yoshikawa's latest patents include a "Projection-type liquid crystal display device" and a "Projection-type liquid crystal display apparatus." The first patent describes a device that features a light source, a liquid crystal light valve, and a controller that manages the common voltage and source voltage based on temperature readings. This innovation aims to reduce fluctuations in light transmittance, enhancing the overall performance of the display. The second patent focuses on preventing image deterioration due to temperature variations in liquid crystal panels. It incorporates temperature detectors and heater elements to maintain optimal conditions for image projection.

Career Highlights

Throughout his career, Yoshikawa has been associated with Mitsubishi Electric Corporation, where he has played a crucial role in advancing projection technology. His expertise in liquid crystal displays has positioned him as a key figure in the field.

Collaborations

Yoshikawa has collaborated with notable colleagues, including Katsumi Asakawa and Hiroaki Ishitani. Their combined efforts have contributed to the development of innovative technologies in the projection industry.

Conclusion

Shigeharu Yoshikawa's contributions to projection technology through his patents and collaborations highlight his importance as an inventor. His work continues to influence advancements in liquid crystal display devices, showcasing the impact of innovation in this field.

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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