Kyoto, Japan

Sadamasa Fujii

This inventor holds 4 USPTO granted patents and 1 published patent application. Top assignee: Rohm Co., Ltd.. Active years: 2009-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sadamasa Fujii. Retrieved from https://idiyas.com/inventor/sadamasa-fujii

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 = 75.0

Average Co-Inventor Count = 2.7

ph-index = 2

Forward Citations = 28(Granted Patents)


Company Filing History:


Years Active: 2009-2013

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4 patents (USPTO):Explore Patents

Title: Sadamasa Fujii: Innovator in Semiconductor Technology

Introduction

Sadamasa Fujii is a prominent inventor based in Kyoto, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 4 patents. His work focuses on enhancing the reliability and efficiency of semiconductor devices.

Latest Patents

Fujii's latest patents include innovative designs aimed at improving semiconductor devices. One of his notable inventions is a semiconductor device that prevents wire disconnection due to thermal shock and temperature cycles during mounting. This device features a semiconductor chip die-bonded to an island, with a first wire bonded to both the chip and the island, ensuring durability and reducing process time. Another significant patent involves an interposer designed to prevent thermal warpage of an insulative substrate. This interposer includes a substrate of insulative resin, an island for chip bonding, and a thermal pad to enhance thermal management.

Career Highlights

Fujii is currently employed at Rohm Co., Ltd., a leading company in semiconductor manufacturing. His work at Rohm has allowed him to push the boundaries of semiconductor technology, contributing to advancements that benefit various electronic applications.

Collaborations

Throughout his career, Fujii has collaborated with notable colleagues, including Hideki Hiromoto and Tsunemori Yamaguchi. These collaborations have fostered a creative environment that encourages innovation and the development of cutting-edge technologies.

Conclusion

Sadamasa Fujii's contributions to semiconductor technology exemplify his dedication to innovation. His patents reflect a commitment to improving device reliability and efficiency, making a lasting impact 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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