Hofu, Japan

Kanji Yamagishi

This inventor holds 4 USPTO granted patents. Top assignees: Kanebo Rayon, Ltd., Kanebo, Limited. Active years: 1990-1993.

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

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 = 5.5

ph-index = 4

Forward Citations = 41(Granted Patents)


Company Filing History:


Years Active: 1990-1993

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4 patents (USPTO):Explore Patents

Title: **The Innovative Journey of Kanji Yamagishi**

Introduction

Kanji Yamagishi, an inventive mind hailing from Hofu, Japan, has made significant contributions to the field of cellulose technology. With a total of four patents to his name, Yamagishi's work primarily revolves around fine cellulose particles and their production processes, showcasing his commitment to innovation in materials science.

Latest Patents

Among his most notable patents is a comprehensive process for producing fine cellulose particles. This innovative method involves creating fine crosslinked cellulose particles that exhibit unique characteristics. Specifically, these cellulose particles are composed of a II-type cellulose crystalline phase alongside a non-crystalline cellulose phase. They possess a crystallinity between 5 to 35%, and the particles are predominantly spherical to elongated spherical in shape, with an average diameter not exceeding 300 micrometers. Additionally, these fine cellulose particles have an exclusion limit molecular weight by polyethylene glycol of no more than 4,000. The production of these fine crosslinked cellulose particles entails a meticulous process, which includes preparing fine particles of coagulated viscose of cellulose xanthate, subjecting them to a crosslinking reaction, and subsequently neutralizing them with an acid or washing them, ensuring their optimal properties.

Career Highlights

Yamagishi's professional journey includes significant tenures at prominent companies such as Kanebo Limited and Kanebo Rayon, Ltd. His experience in these organizations has undoubtedly played a crucial role in shaping his innovative approaches and methodologies within the field of cellulose research and production.

Collaborations

Throughout his career, Kanji Yamagishi has collaborated with esteemed colleagues, including Shigeru Okuma and Masami Hara. These professional relationships have fostered an environment of creativity and shared expertise, contributing to the advancement of cellulose technology and its applications.

Conclusion

Kanji Yamagishi's inventive spirit and dedication to innovation in cellulose technology exemplify the vital role of inventors in advancing science and industry. His patents not only reflect his expertise but also pave the way for future developments in the field, demonstrating the impact of collaboration and commitment to research. As Yamagishi continues to push the boundaries of what is possible in cellulose production, his contributions are likely to inspire future generations of inventors.

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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