Yokohama, Japan

Toshiyuki Sawamura

This inventor holds 4 USPTO granted patents and 2 published patent applications and 2 EPO patents. Top assignee: Mitsubishi Chemical Corporation. Active years: 2018-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshiyuki Sawamura. Retrieved from https://idiyas.com/inventor/toshiyuki-sawamura

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

USPTO Granted Patents = 4 

% Patents Active = 100.0

 

Average Co-Inventor Count = 5.4

ph-index = 2

Forward Citations = 6(Granted Patents)


Location History:

  • Yokohama, JP (2018 - 2019)
  • Tokyo, JP (2023)

Company Filing History:


Years Active: 2018-2025

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4 patents (USPTO):Explore Patents

Title: Innovations of Toshiyuki Sawamura

Introduction

Toshiyuki Sawamura is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of materials science, particularly in resin compositions and heat dissipation technologies. With a total of 4 patents to his name, his work has had a considerable impact on various industrial applications.

Latest Patents

Sawamura's latest patents include a resin composition that features a unique combination of resin and aggregated inorganic filler. This innovative composition ensures that the weight increase of the cured product at 85° C. and 85% relative humidity is 0.80% or less. Additionally, the storage modulus of the cured product, excluding the inorganic filler at 200° C., is 1.0×10 Pa or more. This resin composition is designed to provide high strength and excellent moisture-absorption reflow resistance, thereby minimizing the risk of interfacial detachment when combined with metal sheets to form multilayer bodies.

Another notable patent involves a heat dissipation sheet that incorporates cohesive inorganic filler particles. These particles have a breaking strength of 20 MPa or lower and a modulus of elasticity of 48 MPa or higher. The design of this heat dissipation sheet ensures that half or more of the cohesive inorganic filler particles meet specific conditions, enhancing its performance in semiconductor devices.

Career Highlights

Toshiyuki Sawamura is currently associated with Mitsubishi Chemical Corporation, where he continues to innovate and develop advanced materials. His expertise in resin technology and heat dissipation solutions has positioned him as a key figure in his field.

Collaborations

Throughout his career, Sawamura has collaborated with notable colleagues, including Katsura Ikemiya and Masanori Yamazaki. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Toshiyuki Sawamura's contributions to the field of materials science through his patents and collaborations highlight his role as a leading inventor. His work continues to influence advancements in resin compositions and heat dissipation technologies, showcasing the importance of innovation in modern industry.

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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