Shizuoka, Japan

Hajime Serizawa

This inventor holds 14 USPTO granted patents and 3 EPO patents. Top assignees: Polyplastics Co., Ltd., Takeda Chemical Industries, Inc., Topas Advanced Polymers Gmbh. Active years: 1992-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hajime Serizawa. Retrieved from https://idiyas.com/inventor/hajime-serizawa

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


% Patents Active = 92.9


Average Co-Inventor Count = 3.4

ph-index = 6

Forward Citations = 281(Granted Patents)


Location History:

  • Mishima, JP (1993 - 1999)
  • Fuji, JP (1999 - 2000)
  • Shizuoka, JP (1992 - 2011)
  • Tokyo, JP (2014)

Company Filing History:


Years Active: 1992-2014

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14 patents (USPTO):Explore Patents

Title: Hajime Serizawa: Innovator in Resinous Materials

Introduction

Hajime Serizawa is a prominent inventor based in Shizuoka, Japan. He has made significant contributions to the field of resinous materials, holding a total of 14 patents. His work focuses on developing innovative solutions for electric wires and optical elements.

Latest Patents

Among his latest patents are a resinous material for covering electric wire and an electric wire manufactured using this resinous material. This resinous material is designed to meet or exceed specific standards, utilizing a cyclic olefin-derived resin. Additionally, he has developed flame-retardant cables that incorporate this advanced resinous material. The formulation includes an olefin-derived resin, an elastomer resin, a cyclic olefin-derived resin with a glass transition point between 120°C and 170°C, and a flame retardant. The material boasts impressive properties, including a tensile elongation of no less than 250% and a heat deformation of no greater than 40%. Another notable patent involves an antihazing agent for noncrystalline cycloolefin resins, which effectively inhibits hazing due to environmental changes while maintaining the transparency of the resins.

Career Highlights

Hajime Serizawa has worked with reputable companies such as Polyplastics Co., Ltd. and Topas Advanced Polymers GmbH. His expertise in resin technology has positioned him as a key figure in the development of advanced materials for various applications.

Collaborations

He has collaborated with notable coworkers, including Hiroyuki Sano and Masaru Kubota, contributing to the advancement of resinous materials and their applications.

Conclusion

Hajime Serizawa's innovative work in resinous materials has led to significant advancements in the field, particularly in electric wire and optical element applications. His contributions continue to influence the industry and pave the way for future innovations.

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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