Himeji, Japan

Toyokazu Takubo

This inventor holds 7 USPTO granted patents, plus 1 CIPO patent. Top assignee: Idemitsu Petrochemical Co., Ltd.. Active years: 1987-1997.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toyokazu Takubo. Retrieved from https://idiyas.com/inventor/toyokazu-takubo

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 = 1.8

ph-index = 7

Forward Citations = 144(Granted Patents)


Location History:

  • Chiba, JP (1987 - 1988)
  • Himeji, JP (1989 - 1997)

Company Filing History:


Years Active: 1987-1997

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7 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Toyokazu Takubo

Introduction

Toyokazu Takubo is a notable inventor based in Himeji, Japan. He has made significant contributions to the field of materials science, particularly in the development of innovative zipper technologies. With a total of 7 patents to his name, Takubo's work has garnered attention for its practical applications in everyday products.

Latest Patents

One of Takubo's latest inventions is a snap zipper that includes strip-male and strip-female members. This zipper is designed with a portion for fusing to a bag body, made primarily of a polyester type elastomer or a polybutylene terephthalate (PBT) resin. The resin used in the fusion portion has a bending modulus of elasticity of 10,000 kg/cm² or below. Additionally, the composition of the fusion material includes a polyester type elastomer and a polyolefin type resin, with the polyolefin content ranging from 3 to 50% by weight. Another notable patent is for a bag that incorporates this innovative snap zipper, ensuring a strong and reliable fusion to the bag body.

Career Highlights

Takubo is currently employed at Idemitsu Petrochemical Co., Ltd., where he continues to push the boundaries of material innovation. His work has not only advanced zipper technology but has also contributed to the broader field of polymer science.

Collaborations

Throughout his career, Takubo has collaborated with talented individuals such as Atsushi Fujii and Ken-ichi Tanaka. These partnerships have fostered a creative environment that has led to the development of groundbreaking inventions.

Conclusion

Toyokazu Takubo's contributions to the field of zipper technology and materials science are commendable. His innovative patents reflect a commitment to enhancing everyday products through advanced materials. The impact of his work will likely continue to influence the industry for years to come.

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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