Tokyo, Japan

Shigeru Yoshikawa

This inventor holds 3 USPTO granted patents and 2 published patent applications and 2 EPO patents. Top assignees: Ebara Corporation, Fujitsu Corporation. Active years: 1985-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeru Yoshikawa. Retrieved from https://idiyas.com/inventor/shigeru-yoshikawa-n4deyw8y

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

Calculating rank
USPTO Granted Patents = 3 

% Patents Active = 100.0

 

Average Co-Inventor Count = 2.3

ph-index = 2

Forward Citations = 23(Granted Patents)


Company Filing History:


Years Active: 1985-2023

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3 patents (USPTO):Explore Patents

Title: Shigeru Yoshikawa: Innovator in Sealing Systems

Introduction

Shigeru Yoshikawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of sealing systems, holding a total of 3 patents. His innovative designs have been instrumental in enhancing the efficiency and reliability of various mechanical systems.

Latest Patents

Yoshikawa's latest patents focus on advanced sealing systems. One of his notable inventions includes a double mechanical seal that features both a pump-side sealing mechanism and an atmospheric-side sealing mechanism. This system is designed to work with a pump mechanism driven by a rotational shaft. It incorporates a first medium circulation line that circulates a fluid barrier-and-cooling medium between two chambers, ensuring that the medium is distinct from the fluid handled by the centrifugal pump. Additionally, the design includes a heat exchanger and a shut-off valve, along with a second medium circulation line that bypasses the shut-off valve. A medium pressurizing pump and an on-off valve are also part of this innovative sealing system.

Career Highlights

Throughout his career, Shigeru Yoshikawa has worked with notable companies such as Ebara Corporation and Fujitsu Corporation. His experience in these organizations has allowed him to refine his skills and contribute to various projects that emphasize innovation in mechanical engineering.

Collaborations

Yoshikawa has collaborated with esteemed colleagues, including Junichi Hayakawa and Tsuneo Mizuno. These partnerships have fostered a creative environment that has led to the development of cutting-edge technologies in sealing systems.

Conclusion

Shigeru Yoshikawa's contributions to sealing systems exemplify his dedication to innovation and engineering excellence. His patents reflect a deep understanding of mechanical systems and a commitment to improving their functionality. His work continues to influence the industry and inspire future inventors.

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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