Kawasaki, Japan

Seiji Yoshida

This inventor holds 3 USPTO granted patents. Top assignee: Mitsubishi Chemical Industries Limited. Active years: 1976-1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Seiji Yoshida. Retrieved from https://idiyas.com/inventor/seiji-yoshida-pxprvhfn

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 = 5.3

ph-index = 3

Forward Citations = 39(Granted Patents)


Location History:

  • Yokohama, JA (1976)
  • Kawasaki, JP (1987 - 1988)

Company Filing History:


Years Active: 1976-1988

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3 patents (USPTO):Explore Patents

Title: Seiji Yoshida: Innovator in Polycarbonate Technology

Introduction

Seiji Yoshida is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of materials science, particularly in the development of polycarbonate technologies. With a total of 3 patents to his name, Yoshida's work has had a notable impact on various applications, including optical disc substrates.

Latest Patents

Yoshida's latest patents include innovative advancements in polycarbonate materials. One of his patents focuses on a polycarbonate that contains from 25 to 100% by weight of carbonate bond-constituting units, each containing at least one pendant aromatic group, with an average molecular weight ranging from 9,500 to 14,000. Another significant patent involves an optical disc substrate made of a copolycarbonate, which consists of a polycarbonate containing from 5 to 100% by weight of carbonate bond-constituting units with specific structural formulas.

Career Highlights

Seiji Yoshida is currently associated with Mitsubishi Chemical Industries Limited, where he continues to push the boundaries of material innovation. His work has been instrumental in enhancing the performance and durability of polycarbonate products, making them suitable for a variety of applications.

Collaborations

Yoshida has collaborated with notable colleagues in his field, including Masayoshi Hasuo and Seiichi Mukai. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Seiji Yoshida's contributions to polycarbonate technology exemplify the spirit of innovation in materials science. His patents and collaborations reflect a commitment to advancing the field and improving product performance.

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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