Yokohama, Japan

Yoshimasa Matsui

This inventor holds 2 USPTO granted patents and 4 EPO patents. Top assignee: Hitachi, Ltd.. Active years: 2011-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshimasa Matsui. Retrieved from https://idiyas.com/inventor/yoshimasa-matsui

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

Calculating rank

% Patents Active = 100.0

 

Average Co-Inventor Count = 4.8

ph-index = 2

Forward Citations = 4(Granted Patents)


Company Filing History:


Years Active: 2011-2014

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2 patents (USPTO):Explore Patents

Title: Innovations by Yoshimasa Matsui

Introduction

Yoshimasa Matsui is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of engineering, particularly in the development of advanced braking systems. With a total of 2 patents, his work reflects a commitment to innovation and improvement in automotive technology.

Latest Patents

Matsui's latest patents include a disk brake and a method of producing the same. The disk brake design addresses issues related to the obverse-reverse orientation of a cover member during installation. The cylinder portion, which accommodates a piston, is formed from a plate-shaped cover member that constitutes the bottom and a caliper body main part. This innovative design ensures that the cover member is securely joined to the caliper body, effectively closing the opening. Additionally, a projection on one side of the cover member and a blind hole on the other side facilitate proper installation and machining processes.

Another significant patent involves a disk brake that features a flange portion on the outer periphery of the caliper body. This design allows for the insertion of a cutting tool for machining the cylinder bore. The flange portion is larger than the general surface of the outer peripheral wall, ensuring a sufficient welding margin when a lid member is secured to the opening by friction stir welding. This innovation not only enhances the structural integrity of the disk brake but also reduces its overall weight by minimizing wall thickness.

Career Highlights

Yoshimasa Matsui is currently employed at Hitachi, Ltd., where he continues to develop innovative solutions in the automotive sector. His work has been instrumental in advancing braking technology, contributing to safer and more efficient vehicles.

Collaborations

Matsui has collaborated with talented coworkers such as Keisuke Nanri and Junichi Nagasawa. Their combined expertise has fostered a creative environment that encourages the development of groundbreaking technologies.

Conclusion

Yoshimasa Matsui's contributions to the field of engineering, particularly in disk brake technology, highlight his innovative spirit and dedication to improving automotive safety. His patents reflect a deep understanding of engineering principles and a commitment to excellence in design.

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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