Kawasaki, Japan

Yumiko Tsurumi

This inventor holds 2 USPTO granted patents. Top assignee: Toray Industries, Inc.. Active years: 2001-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yumiko Tsurumi. Retrieved from https://idiyas.com/inventor/yumiko-tsurumi

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 = 2.0

ph-index = 2

Forward Citations = 10(Granted Patents)


Company Filing History:


Years Active: 2001-2003

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2 patents (USPTO):Explore Patents

Title: Yumiko Tsurumi: Innovator in Semiconductor Technology

Introduction

Yumiko Tsurumi is a prominent inventor based in Kawasaki, Japan. She has made significant contributions to the field of semiconductor technology, particularly through her innovative epoxy resin compositions. With a total of 2 patents, Tsurumi's work is recognized for its impact on the efficiency and reliability of semiconductor devices.

Latest Patents

Tsurumi's latest patents focus on an epoxy resin composition designed to seal semiconductors. This composition includes a semiconductor element, a supporting base, and an epoxy resin that covers one side opposite to the base. The formulation consists of (A) epoxy resin, (B) hardener, and (C) inorganic filler. The resulting cured product exhibits a flexural modulus of elasticity ranging from 10 to 30 GPa at 23°C, along with a coefficient of linear expansion between 4×10/K to 10×10/K. Notably, the product of these two properties is less than 2×10 GPa/K, making it suitable for high-performance applications.

Career Highlights

Yumiko Tsurumi is currently employed at Toray Industries, Inc., where she continues to advance her research and development efforts in semiconductor materials. Her work has been instrumental in enhancing the performance and durability of semiconductor devices, contributing to the broader field of electronics.

Collaborations

Tsurumi collaborates with various professionals in her field, including her coworker Masayuki Tanaka. Together, they work on innovative solutions that push the boundaries of semiconductor technology.

Conclusion

Yumiko Tsurumi's contributions to semiconductor technology through her innovative epoxy resin compositions highlight her role as a leading inventor in the industry. Her patents not only reflect her expertise but also pave the way for advancements in electronic devices.

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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