Kawasaki, Japan

Masafumi Fujisaki

This inventor holds 5 USPTO granted patents and 4 published patent applications. Top assignee: Tokyo Ohka Kogyo Co., Ltd.. Active years: 2019-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masafumi Fujisaki. Retrieved from https://idiyas.com/inventor/masafumi-fujisaki

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

USPTO Granted Patents = 5 

% Patents Active = 80.0

Average Co-Inventor Count = 4.1

ph-index = 1

Forward Citations = 3(Granted Patents)


Company Filing History:


Years Active: 2019-2021

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5 patents (USPTO):Explore Patents

Title: Masafumi Fujisaki: Innovator in Resist Composition Technology

Introduction

Masafumi Fujisaki is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of resist compositions, particularly in the development of materials used in photolithography. With a total of 5 patents to his name, Fujisaki's work has had a substantial impact on the semiconductor industry.

Latest Patents

Fujisaki's latest patents include innovative resist compositions and methods for forming resist patterns. One notable patent describes a resist composition that generates acid upon exposure and exhibits changed solubility in a developing solution under the action of acid. This composition includes a polymeric compound with a specific structural unit that enhances its functionality. Another patent focuses on a resist composition that changes solubility due to acid action, incorporating a compound that plays a crucial role in acid diffusion control.

Career Highlights

Fujisaki is currently employed at Tokyo Ohka Kogyo Co., Ltd., a leading company in the field of chemical products for the semiconductor industry. His work has been instrumental in advancing the technology behind resist materials, which are essential for the fabrication of integrated circuits.

Collaborations

Throughout his career, Fujisaki has collaborated with notable colleagues, including Junichi Tsuchiya and Takashi Nagamine. These collaborations have further enriched his research and development efforts in resist technology.

Conclusion

Masafumi Fujisaki's contributions to resist composition technology have positioned him as a key figure in the semiconductor industry. His innovative patents and collaborations continue to influence advancements in this critical 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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