Kanagawa, Japan

Masanori Igarashi

This inventor holds 12 USPTO granted patents and 1 published patent application and 3 EPO patents. Top assignees: Ricoh Company, Ltd., Fuji Jukogyo Kabushiki Kaisha. Active years: 1996-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masanori Igarashi. Retrieved from https://idiyas.com/inventor/masanori-igarashi

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

USPTO Granted Patents = 12 

% Patents Active = 41.7

 

Average Co-Inventor Count = 1.3

ph-index = 5

Forward Citations = 53(Granted Patents)


Location History:

  • Mitaka, JP (1996)
  • Tokyo, JP (1997 - 2005)
  • Kanagawa, JP (2013 - 2021)

Company Filing History:


Years Active: 1996-2025

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12 patents (USPTO):Explore Patents

Title: Masanori Igarashi: Innovator in Liquid Discharge Technology

Introduction

Masanori Igarashi is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of liquid discharge technology, holding a total of 12 patents. His innovative work has been instrumental in advancing the efficiency and functionality of liquid discharge apparatuses.

Latest Patents

Igarashi's latest patents include a liquid discharge apparatus and a liquid exchange method. The liquid discharge apparatus features a discharge unit designed to release a liquid, multiple liquid containers that hold liquids of identical colors, and insertion ports for attaching these containers. An acquisition unit gathers information about the attached containers, while the circuitry prompts users to exchange containers when necessary. Another notable patent is a liquid discharge apparatus with a head maintenance method, which includes a liquid discharge head, a cap, and a suction pump. This system is designed to perform maintenance operations, ensuring optimal performance of the liquid discharge head.

Career Highlights

Throughout his career, Masanori Igarashi has worked with notable companies such as Ricoh Company, Ltd. and Fuji Jukogyo Kabushiki Kaisha. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects.

Collaborations

Igarashi has collaborated with esteemed colleagues, including Hirokazu Kuroda and Masaru Kurihara. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Masanori Igarashi's contributions to liquid discharge technology exemplify his innovative spirit and dedication to advancing the field. His patents and collaborations reflect a commitment to excellence and a drive to improve technological 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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