Tokyo, Japan

Hiroko Matsumura

This inventor holds 1 USPTO granted patent and 6 published patent applications, plus 4 CIPO patents and 3 EPO patents. Top assignee: Mitsubishi Chemical Corporation. Active years: 2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroko Matsumura. Retrieved from https://idiyas.com/inventor/hiroko-matsumura

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

Calculating rank
USPTO Granted Patents = 1 

% Patents Active = 100.0


 

Average Co-Inventor Count = 12.0

ph-index = 1


Company Filing History:


Years Active: 2024

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1 patent (USPTO):Explore Patents

Title: Hiroko Matsumura: Innovator in Carbon Fiber Technology

Introduction

Hiroko Matsumura is a prominent inventor based in Chiyoda-ku, Japan. She has made significant contributions to the field of carbon fiber technology, particularly in the development of advanced materials. Her innovative work has led to the creation of a patented method that enhances the properties of carbon fibers.

Latest Patents

Hiroko Matsumura holds a patent for a carbon fiber precursor acrylic fiber, carbon fiber, and the method for producing the same. The first aspect of her invention involves carbon fiber with a surface monofilament that has a center line average roughness Ra of 6.0 nm or more and 13 nm or less. Additionally, the monofilament has a long diameter/short diameter ratio of 1.11 or more and 1.245 or less. The second aspect pertains to the carbon fiber precursor acrylic fiber, which features a surface monofilament with a center line average roughness Ra of 18 nm or more and 27 nm or less, also maintaining the specified diameter ratio. The carbon fiber is produced by stabilizing and carbonizing the precursor acrylic fiber under specific conditions.

Career Highlights

Hiroko Matsumura is associated with Mitsubishi Chemical Corporation, where she has been instrumental in advancing carbon fiber technologies. Her work has not only contributed to the company's portfolio but has also positioned her as a key figure in the industry.

Collaborations

Hiroko collaborates with notable colleagues, including Naomasa Matsuyama and Yuutarou Nakamura. Their combined expertise fosters innovation and drives research in the field of materials science.

Conclusion

Hiroko Matsumura's contributions to carbon fiber technology exemplify her innovative spirit and dedication to advancing material science. Her patented methods and collaborations highlight her role as a leading inventor in this critical 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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