Kanagawa, Japan

Masaru Yamagishi

This inventor holds 15 USPTO granted patents, primarily in Image Forming Technology. Top assignees: Ricoh Company, Ltd., Ando Electric Company. Active years: 1998-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaru Yamagishi. Retrieved from https://idiyas.com/inventor/masaru-yamagishi

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

% Patents Active = 66.7

Average Co-Inventor Count = 1.3

ph-index = 7

Forward Citations = 159(Granted Patents)


Location History:

  • Tokyo, JP (1998 - 2001)
  • Kanagawa-ken, JP (2008)
  • Kawasaki, JP (2001 - 2009)
  • Kanagawa, JP (2002 - 2018)

Company Filing History:


Years Active: 1998-2018

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Areas of Expertise:
Stacking Apparatus
Length Measurement Device
Image Forming Apparatus
Feeding Method
Medium Discrimination Device
Sheet Size Detection
Double-Sided Image Forming
Sheet Reversing Device
Duplex Sheet Feeding
Tester for Power Supply
Paper Feed Tray
Sheet Conveying Device
15 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Masaru Yamagishi

Introduction

Masaru Yamagishi is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of technology, particularly in the development of advanced apparatuses for handling circuit boards and measuring object lengths. With a total of 15 patents to his name, Yamagishi's work has had a considerable impact on various industries.

Latest Patents

One of Yamagishi's latest patents is a stacking apparatus designed to enhance the efficiency of handling sheets for circuit boards. This apparatus includes a conveyance unit that transports the sheets, a stacking unit that organizes them, and a separation member supply unit that ensures the sheets are separated at any desired position. Another notable patent is the to-be-transferred object length measurement device, which features a first rotating body, a passage detection unit, and a calculation unit that accurately measures the length of objects being transferred. This innovation is crucial for improving the precision of object handling in various applications.

Career Highlights

Throughout his career, Masaru Yamagishi has worked with reputable companies such as Ricoh Company, Ltd. and Ando Electric Company. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking technologies that enhance operational efficiency.

Collaborations

Yamagishi has collaborated with talented individuals in the field, including Yousuke Edo and Yasufumi Takahashi. These partnerships have fostered innovation and have led to the successful development of various technologies.

Conclusion

Masaru Yamagishi's contributions to technology through his patents and collaborations highlight his role as a significant inventor in Japan. His work continues to influence advancements in the industry, showcasing the importance of innovation in driving progress.

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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