Yokosuka, Japan

Tetsuyo Kawahara

This inventor holds 1 USPTO granted patent. Top assignee: Nippon Zeon Company, Ltd.. Active years: 1976.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tetsuyo Kawahara. Retrieved from https://idiyas.com/inventor/tetsuyo-kawahara

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 = 5.0

ph-index = 1

Forward Citations = 3(Granted Patents)


Company Filing History:


Years Active: 1976

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1 patent (USPTO):Explore Patents

Title: Tetsuyo Kawahara: Innovator in Resin Composition Technology

Introduction

Tetsuyo Kawahara is a notable inventor based in Yokosuka, Japan. He has made significant contributions to the field of materials science, particularly in the development of resin compositions for information carriers. His innovative work has led to the creation of a patented composition that enhances the molding process of these carriers.

Latest Patents

Kawahara holds a patent for a "Resin composition for shaping information carrier." This composition consists of a uniformly kneaded mixture of a composite resin and molding additives. The specific formulation includes 100 parts by weight of a composite resin with a specific viscosity, composed of 90 to 40% by weight of a vinyl chloride resin and 10 to 60% by weight of a methyl methacrylate portion. The composition is designed to have a melt viscosity of 3 × 103 to 3 × 104 poises at 160°C and a break elongation of at least 10% when stretched at 25°C.

Career Highlights

Kawahara is associated with Nippon Zeon Company, Ltd., where he has been instrumental in advancing resin technology. His work has not only contributed to the company's portfolio but has also positioned him as a key figure in the industry.

Collaborations

Throughout his career, Kawahara has collaborated with notable colleagues such as Hiroshi Kitaguchi and Katsuya Nakamura. These partnerships have fostered innovation and have been crucial in the development of new materials and technologies.

Conclusion

Tetsuyo Kawahara's contributions to resin composition technology exemplify the impact of innovative thinking in materials science. His patented work continues to influence the field and showcases the importance of collaboration in driving advancements.

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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