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For the Inventor, By the Inventor

Mishima, Japan

Hagime Serizawa

This inventor holds 3 USPTO granted patents. Top assignee: Polyplastics Co., Ltd.. Active years: 1993.

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

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

USPTO Granted Patents = 3

% Patents Active = 100.0

Average Co-Inventor Count = 2.6

ph-index = 2

Forward Citations = 16(Granted Patents)


Company Filing History:

goldMedal3 out of 381 
 
Polyplastics Co., Ltd.
 patents

Years Active: 1993

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3 patents (USPTO):Explore Patents
1. 5254609 - Polyarylene sulfide resin composition and process for the preparation (1993-10-19),
2. 5242959 - Polyarylene sulfide resin composition having excellent adhesion and (1993-09-07),
3. 5227427 - Polyarylene sulfide resin composition and process for the preparation of (1993-07-13),

Title: Hagime Serizawa: Innovator in Polyarylene Sulfide Resin Technology

Introduction

Hagime Serizawa is a notable inventor based in Mishima, Japan. He has made significant contributions to the field of materials science, particularly in the development of polyarylene sulfide resin compositions. With a total of 3 patents to his name, Serizawa's work has had a considerable impact on various industrial applications.

Latest Patents

Serizawa's latest patents include innovative formulations that enhance the properties of polyarylene sulfide resins. One of his patents describes a resin composition that comprises (A) 97 to 20 parts by weight of a polyarylene sulfide resin and (B) 3 to 80 parts by weight of a polyamide resin, along with (C) 0.1 to 15 parts by weight of a compound featuring a carbon-carbon double bond and an epoxy group. This composition may also include (D) a radical initiator and/or (E) a filler. Another patent focuses on a polyarylene sulfide resin composition that boasts improved adhesion, consisting of (A) 100 parts by weight of a polyarylene sulfide resin and (B) 0.1 to 15 parts by weight of a compound with a carbon-carbon double bond and an epoxy group, along with optional components (C) a radical initiator and (D) a filler.

Career Highlights

Hagime Serizawa is currently associated with Polyplastics Co., Ltd., where he continues to innovate in the field of polymer materials. His expertise in resin technology has positioned him as a key figure in the development of advanced materials for various applications.

Collaborations

Throughout his career, Serizawa has collaborated with talented individuals such as Masaru Kubota and Hiroyuki Sano. These collaborations have further enriched his research and development efforts, leading to groundbreaking advancements in resin technology.

Conclusion

Hagime Serizawa's contributions to polyarylene sulfide resin technology exemplify the importance of innovation in materials science. His patents reflect a commitment to enhancing the performance and applicability of resin compositions, making a lasting impact in the industry.

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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