Kanagawa, Japan

Kana Miyoshi

This inventor holds 3 USPTO granted patents and 2 EPO patents. Top assignee: Mitsubishi Pencil Company, Limited. Active years: 2020-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kana Miyoshi. Retrieved from https://idiyas.com/inventor/kana-miyoshi

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 = 3.0

ph-index = 1

Forward Citations = 1(Granted Patents)


Location History:

  • Kanagawa, JP (2020)
  • Tokyo, JP (2023)

Company Filing History:


Years Active: 2020-2024

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3 patents (USPTO):Explore Patents

Title: Innovations by Kana Miyoshi

Introduction

Kana Miyoshi is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of aqueous ink compositions, particularly for writing instruments. With a total of 3 patents to his name, his work has enhanced the functionality and reliability of writing tools.

Latest Patents

One of his latest patents is an aqueous ink composition for writing instruments. This innovation provides excellent stability of ink flow, suppressing the aggregation of microcapsule pigments and preventing clogging. The composition includes a microcapsule pigment containing a pigment and a medium of a fatty acid polyol ester, with a melting point ideally between 40° C. and 70° C.

Another significant patent is for an aqueous ink composition specifically designed for ballpoint pens. This formulation ensures excellent ink discharge properties at the initial writing, even after prolonged exposure of the pen tip. It contains a graft compound of an allyl alcohol-maleic anhydride-styrene copolymer, resin particles, and water, which work together to enhance the writing experience.

Career Highlights

Kana Miyoshi is currently employed at Mitsubishi Pencil Company, Limited, where he continues to innovate in the field of writing instruments. His work has been instrumental in developing products that meet the needs of consumers for reliable and high-quality writing tools.

Collaborations

He collaborates with talented coworkers, including Kousuke Ogura and Akiko Hirayama, who contribute to the innovative environment at Mitsubishi Pencil Company.

Conclusion

Kana Miyoshi's contributions to aqueous ink compositions have significantly impacted the writing instrument industry. His patents reflect a commitment to enhancing the user experience through innovative solutions.

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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