Nara, Japan

Tsutomu Yoshikawa

This inventor holds 5 USPTO granted patents and 2 published patent applications. Top assignee: Panasonic Intellectual Property Management Co., Ltd.. Active years: 2018-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tsutomu Yoshikawa. Retrieved from https://idiyas.com/inventor/tsutomu-yoshikawa-gouv4vgp

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

Calculating rank
USPTO Granted Patents = 5 

% Patents Active = 100.0

Average Co-Inventor Count = 1.2

ph-index = 2

Forward Citations = 14(Granted Patents)


Company Filing History:


Years Active: 2018-2020

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5 patents (USPTO):Explore Patents

Title: Tsutomu Yoshikawa: Innovator in Light Conversion Technology

Introduction

Tsutomu Yoshikawa is a prominent inventor based in Nara, Japan. He has made significant contributions to the field of light conversion technology, holding a total of 5 patents. His innovative work focuses on enhancing the efficiency and functionality of light conversion devices.

Latest Patents

Yoshikawa's latest patents include a phosphor wheel and a light conversion device that incorporates this technology. The phosphor wheel features a disk-shaped member that rotates around a central axis, with a phosphor layer applied to its outer face. This design includes a hollow-box structure that creates an enclosed space, where a coolant is sealed. The coolant transitions from a liquid to a gas state at a predetermined temperature, optimizing the performance of the device. Additionally, his light conversion device integrates a phosphor wheel, a circulation fan, a motor, and a heat absorber, all housed within a casing unit. This innovative design allows for efficient cooling and improved light conversion.

Career Highlights

Yoshikawa is currently employed at Panasonic Intellectual Property Management Co., Ltd., where he continues to develop cutting-edge technologies. His work has been instrumental in advancing the capabilities of light conversion systems, making them more effective for various applications.

Collaborations

Throughout his career, Yoshikawa has collaborated with notable colleagues, including Kenji Ikeo and Masahiro Inata. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas.

Conclusion

Tsutomu Yoshikawa's contributions to light conversion technology exemplify his dedication to innovation. His patents reflect a commitment to enhancing the efficiency of light systems, making a lasting impact in the 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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