Niigata, Japan

Seiji Uchiyama

This inventor holds 6 USPTO granted patents. Top assignee: Mitsubishi Gas Chemical Company, Inc.. Active years: 1977-1995.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Seiji Uchiyama. Retrieved from https://idiyas.com/inventor/seiji-uchiyama-glx3nmtx

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 = 3.8

ph-index = 3

Forward Citations = 21(Granted Patents)


Location History:

  • Niigata, JA (1977)
  • Niigata, JP (1979 - 1995)

Company Filing History:


Years Active: 1977-1995

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6 patents (USPTO):Explore Patents

Title: Seiji Uchiyama: Innovator in Chemical Processes

Introduction

Seiji Uchiyama is a prominent inventor based in Niigata, Japan. He has made significant contributions to the field of chemical engineering, particularly in the production of specialized compounds. With a total of 6 patents to his name, Uchiyama's work has had a notable impact on industrial processes.

Latest Patents

Uchiyama's latest patents include a process for producing dimethyl 2,6-naphthalene-dicarboxylate. This innovative method involves reacting 2,6-naphthalene-dicarboxylic acid with methanol at temperatures ranging from 200°C to 350°C. The process utilizes trimethyl trimellitate as an essential solvent, enhancing the rate of esterification and yielding a high-purity product while minimizing operational issues. Another significant patent is for the production of 2,6-dimethylnaphthalene. This process includes an acylation step, hydrogenation, and a dehydrogenation and cyclization step, allowing for the efficient production of high-quality 2,6-dimethylnaphthalene.

Career Highlights

Seiji Uchiyama is currently associated with Mitsubishi Gas Chemical Company, Inc., where he continues to innovate and develop new chemical processes. His expertise in chemical reactions and process optimization has positioned him as a valuable asset in the industry.

Collaborations

Uchiyama has collaborated with notable coworkers such as Shigeo Yoshinaka and Masaharu Doya. Their combined efforts have contributed to advancements in chemical production techniques.

Conclusion

Seiji Uchiyama's contributions to chemical engineering through his patents and innovative processes highlight his role as a leading inventor in the field. His work continues to influence the industry and pave the way for future advancements.

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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