Yokohama, Japan

Masamichi Watanabe

This inventor holds 4 USPTO granted patents. Top assignees: Mitsubishi Chemical Industries Limited, Diafoil Company, Ltd.. Active years: 1978-1982.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masamichi Watanabe. Retrieved from https://idiyas.com/inventor/masamichi-watanabe-inyl5n9n

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 = 4.0

ph-index = 3

Forward Citations = 55(Granted Patents)


Location History:

  • Yokohama, JA (1978)
  • Yokohama, JP (1978 - 1982)

Company Filing History:


Years Active: 1978-1982

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4 patents (USPTO):Explore Patents

Title: Masamichi Watanabe: Innovator in Polyester Film Technology

Introduction

Masamichi Watanabe is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of polyester film technology, holding a total of 4 patents. His work has paved the way for advancements in various applications, including magnetic tapes and capacitors.

Latest Patents

Watanabe's latest patents include a polyester film containing fine powder of crosslinked polymer. This invention discloses a polyester film that contains from 0.001% to 4% by weight of fine particles derived from a crosslinked polymer. These particles have an average diameter of 0.1 to 5 micrometers and are beneficial for high-grade films used in diverse applications. Another significant patent involves a polyester film that primarily consists of polyethylene terephthalate, enhanced with granular calcium terephthalate anhydride particles. This film is particularly suitable for metallized and condenser film applications.

Career Highlights

Throughout his career, Watanabe has worked with prominent companies such as Mitsubishi Chemical Industries Limited and Diafoil Company, Ltd. His experience in these organizations has contributed to his expertise in polymer technology and film applications.

Collaborations

Watanabe has collaborated with notable coworkers, including Seiji Sakamoto and Takuo Nakahara. Their joint efforts have further advanced the innovations in polyester film technology.

Conclusion

Masamichi Watanabe's contributions to polyester film technology have had a lasting impact on various industries. His innovative patents and collaborations highlight his role as a key figure in this field.

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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