Tagata, Japan

Masayoshi Koyanagi

This inventor holds 2 USPTO granted patents. Top assignee: Tokyo Electric Co.. Active years: 1992-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masayoshi Koyanagi. Retrieved from https://idiyas.com/inventor/masayoshi-koyanagi

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 = 1.7

ph-index = 2

Forward Citations = 7(Granted Patents)


Location History:

  • Tagata, JP (1992)
  • Shizuoka, JP (1993)

Company Filing History:


Years Active: 1992-1993

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2 patents (USPTO):Explore Patents

Title: Masayoshi Koyanagi: Innovator in Printing Technology

Introduction

Masayoshi Koyanagi is a notable inventor based in Tagata, Japan. He has made significant contributions to the field of printing technology, holding a total of 2 patents. His work focuses on improving the efficiency and functionality of printing machines.

Latest Patents

Koyanagi's latest patents include a "Paper Sheet Guide for a Printer" and a "Sheet Feeding Apparatus for a Printing Machine Featuring a Resiliently." The first patent describes a printer that includes an outer case housing a printing head and a platen, equipped with a paper sheet introducing opening. A paper sheet introducing guide is mounted on the outer case to facilitate the introduction of paper sheets into the printer. The second patent outlines an auto sheet feeder that is demountably mounted on a printing machine, featuring a sequential arrangement of a reversible motor, a transmission mechanism, and a rotatable platen.

Career Highlights

Koyanagi has worked with Tokyo Electric Co., where he has been able to apply his innovative ideas in practical settings. His contributions have helped enhance the performance of printing machines, making them more user-friendly and efficient.

Collaborations

He has collaborated with notable coworkers such as Tadao Fujisawa and Yoshihiro Hamamichi, contributing to various projects that aim to advance printing technology.

Conclusion

Masayoshi Koyanagi's work in the field of printing technology showcases his innovative spirit and dedication to improving machine efficiency. His patents reflect a commitment to enhancing user experience in printing applications.

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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