Ibaraki, Japan

Hajime Tsukamoto

This inventor holds 3 USPTO granted patents. Top assignees: Kureha Kagaku Kogyo K.k., Kureha Plastics Co., Ltd. Active years: 2000-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hajime Tsukamoto. Retrieved from https://idiyas.com/inventor/hajime-tsukamoto-r1iltm33

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 = 3.6

ph-index = 3

Forward Citations = 57(Granted Patents)


Company Filing History:


Years Active: 2000-2002

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3 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Hajime Tsukamoto

Introduction

Hajime Tsukamoto is a notable inventor based in Ibaraki, Japan. He has made significant contributions to the field of packaging technology, holding a total of 3 patents. His work focuses on developing advanced materials that enhance the functionality and efficiency of packaging solutions.

Latest Patents

One of his latest patents is a packaging film or sheet that features a single-layer or multi-layer design. This innovative film includes at least one layer made from a polyamide resin composition. The composition consists of a copolymer nylon that combines an aliphatic nylon component and an aromatic nylon component in a proportion of at least 5 wt. %. Another significant patent is for a heat-shrinkable multi-layer film. This film comprises a thermoplastic resin layer as the outermost layer, a gas barrier resin layer as the core, and a sealing resin layer as the innermost layer. The sealing layer is formed from a resin material that includes a linear ethylene-1-octene copolymer, ensuring excellent sealing properties, clarity, mechanical strength, stretchability, and bag-making capabilities.

Career Highlights

Hajime Tsukamoto has worked with reputable companies such as Kureha Kagaku Kogyo Co., Ltd. and Kureha Kagaku Koygo Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to innovative packaging solutions.

Collaborations

Throughout his career, Tsukamoto has collaborated with talented individuals, including Junji Yoshii and Yoshihiro Matsukura. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies in packaging.

Conclusion

Hajime Tsukamoto's contributions to the field of packaging technology are noteworthy. His innovative patents and collaborations highlight his commitment to advancing materials that improve packaging efficiency and functionality. His work continues to influence the industry and inspire 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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