Tsukuba, Japan

Tohru Nagashima

This inventor holds 12 USPTO granted patents and 1 EPO patent. Top assignee: Sumitomo Chemical Company, Limited. Active years: 1998-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tohru Nagashima. Retrieved from https://idiyas.com/inventor/tohru-nagashima

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

Calculating rank

% Patents Active = 83.3


Average Co-Inventor Count = 2.5

ph-index = 6

Forward Citations = 193(Granted Patents)


Location History:

  • Ibaraki, JP (1999 - 2001)
  • Tsukuba, JP (1998 - 2006)

Company Filing History:


Years Active: 1998-2006

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12 patents (USPTO):Explore Patents

Title: Tohru Nagashima: Innovator in Resin Technology

Introduction

Tohru Nagashima is a prominent inventor based in Tsukuba, Japan. He has made significant contributions to the field of resin technology, holding a total of 12 patents. His work focuses on developing advanced materials that enhance performance and durability in various applications.

Latest Patents

Nagashima's latest patents include a phenolic resin and a method of producing the same. This phenolic resin is obtainable by reacting a dihydroxy compound with a phenolic compound, where the dihydroxy compound is partially dehydrated. Another notable patent is for a liquid crystalline polyester resin composition and molded product thereof. This composition contains a liquid crystalline polyester that forms an anisotropic melt phase, along with specific phosphite compounds. It is designed to produce molded products with excellent thermal stability under high temperatures, preventing blistering during soldering.

Career Highlights

Tohru Nagashima is currently employed at Sumitomo Chemical Company, Limited, where he continues to innovate in the field of chemical engineering. His expertise in resin technology has positioned him as a key figure in the development of new materials that meet the demands of modern manufacturing.

Collaborations

Throughout his career, Nagashima has collaborated with notable colleagues, including Hideo Nomura and Hiroshi Nakamura. These partnerships have fostered a creative environment that encourages the exchange of ideas and advancements in technology.

Conclusion

Tohru Nagashima's contributions to resin technology through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry, paving the way for future innovations in material science.

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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