Tosu, Japan

Seiji Arita

This inventor holds 2 USPTO granted patents. Top assignee: Agency of Industrial Science and Technology. Active years: 1976-1986.

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

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


% Patents Active = 100.0

Average Co-Inventor Count = 5.0

ph-index = 2

Forward Citations = 39(Granted Patents)


Location History:

  • Tosu, JA (1976)
  • Tosu, JP (1986)

Company Filing History:


Years Active: 1976-1986

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2 patents (USPTO):Explore Patents

Title: Innovator Seiji Arita: Pioneering Carbon Fiber and Thiohumic Acid Technologies

Introduction: Seiji Arita is a notable inventor based in Tosu, Japan, recognized for his contributions to materials science and technology. With a remarkable two patents to his name, Arita has made significant advancements in the preparation of pitches for carbon fibers and the development of thiohumic acid.

Latest Patents: Arita's latest patents showcase his innovative approach and technical expertise. One of his significant inventions is a method for the preparation of pitches for spinning carbon fibers. This method transforms traditional approaches by utilizing a starting pitch material, such as coal tar, which is heated with aromatic oil and a cracking catalyst under specific conditions. The resulting pitch boasts excellent spinnability, leading to carbon fibers with superior microscopic structures and outstanding physical properties that exceed conventional pitch-based carbon fibers.

Another key patent involves thiohumic acid, a compound produced by modifying humic acid to enhance its properties. By replacing carboxyl groups in humic acid with thiocarboxyl groups through a specialized treatment process, Arita has created a heavy metal adsorbent that shows promise in environmental applications.

Career Highlights: Seiji Arita currently serves as the Director-General of the Agency of Industrial Science and Technology, where he continues to drive innovation and research in the field of industrial science. His visionary leadership and dedication have positioned him as a key figure in advancing technological development in Japan.

Collaborations: Throughout his career, Arita has collaborated with talented professionals, including Hisayoshi Yoshida and Takato Nakamura. These partnerships have fostered a dynamic research environment, allowing for the exchange of ideas and the enhancement of technological advancements.

Conclusion: Seiji Arita exemplifies the spirit of innovation and creativity in the field of materials science. His groundbreaking work on carbon fiber pitches and thiohumic acid not only contributes to technological progress but also addresses critical industry challenges. With a commitment to research and a strong collaborative network, Arita's contributions will undoubtedly inspire future advancements in the field.

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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