Ichihara, Japan

Nobuhiro Natsuyama

This inventor holds 14 USPTO granted patents and 1 published patent application. Top assignees: Sumitomo Chemical Company, Limited, Other. Active years: 1992-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nobuhiro Natsuyama. Retrieved from https://idiyas.com/inventor/nobuhiro-natsuyama

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

USPTO Granted Patents = 14 

% Patents Active = 78.6

Average Co-Inventor Count = 2.3

ph-index = 2

Forward Citations = 19(Granted Patents)


Location History:

  • Chiba, JP (1992 - 2016)
  • Ichihara, JP (1993 - 2017)

Company Filing History:


Years Active: 1992-2017

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14 patents (USPTO):Explore Patents

Title: Nobuhiro Natsuyama: Innovator in Thermoplastic Elastomer Technology

Introduction

Nobuhiro Natsuyama is a prominent inventor based in Ichihara, Japan. He has made significant contributions to the field of thermoplastic elastomers, holding a total of 14 patents. His innovative approaches have led to advancements in material compositions and production methods.

Latest Patents

Natsuyama's latest patents include a method for producing a thermoplastic elastomer composition and a method for producing a flame-retardant thermoplastic elastomer composition. The first patent outlines a process that involves dynamically vulcanizing a mixture of an oil-extended ethylene-α-olefin-based copolymerized rubber and a propylene-based resin. This method results in a thermoplastic elastomer that meets specific viscosity and softening agent requirements. The second patent focuses on creating a flame-retardant thermoplastic elastomer composition that maintains mechanical properties and softness while preventing mold staining during injection molding.

Career Highlights

Throughout his career, Natsuyama has worked with notable companies, including Sumitomo Chemical Company, Limited. His expertise in thermoplastic elastomers has positioned him as a key figure in the industry, contributing to the development of innovative materials.

Collaborations

Natsuyama has collaborated with talented individuals such as Hironobu Shigematsu and Ryosuke Kurokawa. These partnerships have fostered a creative environment that has led to the successful development of new technologies.

Conclusion

Nobuhiro Natsuyama's work in thermoplastic elastomers showcases his dedication to innovation and material science. His patents and collaborations highlight his significant impact on the industry, making him a noteworthy inventor in his 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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