Ohtake, Japan

Hiroaki Yoneyama

This inventor holds 3 USPTO granted patents. Top assignee: Mitsubishi Rayon Company, Limited. Active years: 1991-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroaki Yoneyama. Retrieved from https://idiyas.com/inventor/hiroaki-yoneyama

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


% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 3

Forward Citations = 68(Granted Patents)


Location History:

  • Otake, JP (1992)
  • Ohtake, JP (1991 - 1994)

Company Filing History:


Years Active: 1991-1994

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3 patents (USPTO):Explore Patents

Title: Hiroaki Yoneyama: Innovator in Carbon Fiber Technology

Introduction

Hiroaki Yoneyama is a prominent inventor based in Ohtake, Japan. He has made significant contributions to the field of carbon fiber technology, holding a total of 3 patents. His work focuses on developing high-performance materials that have applications in various industries.

Latest Patents

Yoneyama's latest patents include innovations in carbon fibers that exhibit high tenacity and high modulus of elasticity. One notable patent describes a carbon fiber with a fiber diameter ranging from 1 to 6 micrometers, a strand tenacity of 430 kg/mm² or more, a strand modulus of elasticity of 28 ton/mm² or more, and a density of 1.755 g/cm³ or more. This advanced carbon fiber is particularly valuable as a raw material for composite materials used in sporting goods, such as fishing rods and golf clubs, as well as in the aerospace industry. Another patent focuses on carbon-based porous hollow fiber membranes and the methods for producing them.

Career Highlights

Hiroaki Yoneyama is associated with Mitsubishi Rayon Company, Limited, where he continues to push the boundaries of material science. His innovative work has positioned him as a key figure in the development of advanced carbon fiber technologies.

Collaborations

Yoneyama has collaborated with notable colleagues, including Munetsugu Nakatani and Yoshitaka Imai, to further enhance the research and development of carbon fiber applications.

Conclusion

Hiroaki Yoneyama's contributions to carbon fiber technology have established him as a leading inventor in the field. His patents reflect a commitment to innovation that benefits multiple industries, showcasing the potential of advanced materials.

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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