Tokyo, Japan

Kentaro Matsubara

This inventor holds 5 USPTO granted patents and 1 published patent application. Top assignees: Tetsudo Kizai Kogyo Company Limited, Tokai Rubber Industries, Ltd.. Active years: 1979-1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kentaro Matsubara. Retrieved from https://idiyas.com/inventor/kentaro-matsubara

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

USPTO Granted Patents = 5 

% Patents Active = 100.0

Average Co-Inventor Count = 1.7

ph-index = 3

Forward Citations = 23(Granted Patents)


Company Filing History:


Years Active: 1979-1985

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5 patents (USPTO):Explore Patents

Title: Kentaro Matsubara: Innovator in Rail Fastening Technology

Introduction

Kentaro Matsubara is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of rail fastening technology, holding a total of 5 patents. His innovative designs have improved the safety and efficiency of rail systems.

Latest Patents

Matsubara's latest patents include a rail fastening device and an elastic rail fastening device. The rail fastening device features a curved tapered spring designed to engage a rail flange, preventing lateral and tilting motion of the rail. This spring is secured by a fastening element with a detent that is rotated and slid into a shaped hole in an anchor embedded in the tie supporting the rail. The elastic rail fastening device is designed for securing a rail to a concrete tie with a spike. It includes a top pressing spring that holds the rail against the tie, with one end supported beneath a shoulder on the metal spike. Additionally, a side spring is inserted to receive transverse pressure acting on the rail.

Career Highlights

Throughout his career, Matsubara has worked with prominent companies such as Tetsudo Kizai Kogai Company Limited and Tokai Rubber Industries, Ltd. His work has been instrumental in advancing rail fastening technologies, contributing to safer and more reliable rail systems.

Collaborations

Matsubara has collaborated with various professionals in his field, including his coworker Yoshio Matsuo. Their joint efforts have led to innovative solutions in rail fastening technology.

Conclusion

Kentaro Matsubara's contributions to rail fastening technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence the safety and efficiency of rail systems worldwide.

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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