Kanagawa, Japan

Yoshitsugu Hamada

This inventor holds 3 USPTO granted patents. Top assignee: Showa Denko Kabushiki Kaisha. Active years: 1989-1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshitsugu Hamada. Retrieved from https://idiyas.com/inventor/yoshitsugu-hamada

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 = 2.8

ph-index = 2

Forward Citations = 29(Granted Patents)


Company Filing History:


Years Active: 1989-1990

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3 patents (USPTO):Explore Patents

Title: Innovations by Yoshitsugu Hamada

Introduction

Yoshitsugu Hamada is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of packaging technology, particularly in the production of printed containers and can covers. With a total of 3 patents to his name, his work reflects a commitment to innovation and quality in manufacturing processes.

Latest Patents

One of his latest patents is a method of producing printed containers for retortable materials. This method involves subjecting the outer surfaces of polyolefin sheets or containers to a flame treatment, achieving a wet index of 45 dyne/cm or higher before printing. The polyolefin used consists of a mixture of a crystalline propylene polymer and an ethylene polymer, ensuring durability and effectiveness in packaging. Another significant patent is the method of preforming a cover member for a can-shaped container. This process involves creating a planar base with a metallic barrier layer and resin layers, which is then premolded and injection molded to form a cover.

Career Highlights

Yoshitsugu Hamada is associated with Showa Denko Kabushiki Kaisha, a company known for its advancements in chemical and material technologies. His work at this company has allowed him to develop innovative solutions that enhance product performance and sustainability in packaging.

Collaborations

Throughout his career, Hamada has collaborated with notable colleagues, including Takeshi Takahashi and Yoshihiko Kawakami. These partnerships have fostered a creative environment that encourages the exchange of ideas and expertise.

Conclusion

Yoshitsugu Hamada's contributions to the field of packaging technology demonstrate his innovative spirit and dedication to improving manufacturing processes. His patents reflect a deep understanding of materials and their applications, making him a valuable figure 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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