Sodegaura, Japan

Hiroshi Yamada

This inventor holds 1 USPTO granted patent. Top assignee: Idemitsu Kosan Company, Limited. Active years: 1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Yamada. Retrieved from https://idiyas.com/inventor/hiroshi-yamada-ohg70ji0

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 = 5.0

ph-index = 1

Forward Citations = 5(Granted Patents)


Company Filing History:


Years Active: 1994

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1 patent (USPTO):Explore Patents

Title: Hiroshi Yamada: Innovator in Styrene-based Resin Composition

Introduction

Hiroshi Yamada is a notable inventor based in Sodegaura, Japan. He has made significant contributions to the field of materials science, particularly in the development of styrene-based resin compositions. His innovative work has led to advancements in the production of moldings that exhibit exceptional properties.

Latest Patents

Hiroshi Yamada holds a patent for a styrene-based resin composition and the process for producing moldings. This composition contains as main components (A) 100 parts by weight of a styrene-based polymer with a syndiotactic configuration and (B) 0.01 to 25 parts by weight of one or more nucleating agents. These agents include metal salts of organic acids, inorganic compounds, organophosphorus compounds, and metal salts of ionic hydrocarbon copolymers. The process involves molding the resin composition at temperatures between room temperature and 200 degrees Celsius. The resulting moldings are characterized by high crystallinity and excellent heat, solvent, and chemical resistance.

Career Highlights

Hiroshi Yamada is currently employed at Idemitsu Kosan Company, Limited, where he continues to innovate in the field of polymer materials. His work has not only contributed to the company's portfolio but has also advanced the industry standards for resin compositions.

Collaborations

Hiroshi has collaborated with notable colleagues such as Komei Yamasaki and Toshikazu Ijitsu. Their combined expertise has fostered a productive environment for innovation and development in their projects.

Conclusion

Hiroshi Yamada's contributions to the field of styrene-based resin compositions highlight his role as a key innovator in materials science. His patented work demonstrates the potential for enhanced performance in moldings, showcasing the importance of innovation in this sector.

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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