Tokyo, Japan

Masaru Nakajo

This inventor holds 7 USPTO granted patents and 5 published patent applications. Top assignees: Polymatech Co., Ltd., Refine Holdings Co., Ltd.. Active years: 1998-2025.

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

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

USPTO Granted Patents = 7 

% Patents Active = 85.7

Average Co-Inventor Count = 2.2

ph-index = 3

Forward Citations = 19(Granted Patents)


Location History:

  • Iwatsuki, JP (1998)
  • Tokyo, JP (2000 - 2024)

Company Filing History:


Years Active: 1998-2025

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7 patents (USPTO):Explore Patents

Title: Masaru Nakajo: Innovator in Carbonaceous Material Processing

Introduction

Masaru Nakajo is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of carbonaceous material processing, holding a total of 7 patents. His innovative methods focus on improving the efficiency of material dispersion and filtration processes.

Latest Patents

Among his latest patents, Nakajo has developed a method for removing foreign material from carbonaceous material dispersion. This method efficiently eliminates non-magnetic foreign materials from a dispersion where carbonaceous material particles are suspended in a medium. The process involves circulating the dispersion through a primary filter multiple times and then passing it through a secondary filter. Each filter device used in this process meets specific criteria to ensure optimal performance. Another notable patent is his method for producing a dispersion of carbonaceous material in a nonaqueous solvent, which includes a nitrogen-containing heterocyclic amide compound with a high solvent purity.

Career Highlights

Throughout his career, Nakajo has worked with several companies, including Polymatech Co., Ltd. and Refine Holdings Co., Ltd. His experience in these organizations has allowed him to refine his expertise in material processing and innovation.

Collaborations

Nakajo has collaborated with notable coworkers such as Kensuke Fukasawa and Tomokiyo Takeyama. These partnerships have contributed to the advancement of his research and the successful development of his patents.

Conclusion

Masaru Nakajo's work in the field of carbonaceous material processing showcases his innovative spirit and dedication to improving industrial processes. His patents reflect a commitment to efficiency and effectiveness in material handling.

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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