Kawasaki, Japan

Katuyuki Yamada

This inventor holds 3 USPTO granted patents. Top assignee: Fujitsu Corporation. Active years: 1984-1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katuyuki Yamada. Retrieved from https://idiyas.com/inventor/katuyuki-yamada

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 = 2.6

ph-index = 3

Forward Citations = 22(Granted Patents)


Company Filing History:


Years Active: 1984-1985

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3 patents (USPTO):Explore Patents

Title: Katuyuki Yamada: Innovator in Semiconductor Memory Technology

Introduction

Katuyuki Yamada is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of semiconductor memory technology, holding a total of 3 patents. His work focuses on enhancing the performance and efficiency of semiconductor memory devices.

Latest Patents

Yamada's latest patents include a groundbreaking semiconductor memory device that features a holding current flowing continuously from word selection lines through memory cells to hold lines. This innovative design incorporates current mirror circuits at the base of each transistor, allowing for independent operation of discharge circuits. As a result, the semiconductor memory device achieves a high access speed while minimizing the impact of power source fluctuations. Another notable patent involves a semiconductor memory that includes memory cells equipped with flip-flop circuits. This design utilizes a pair of switching transistors to manage write operations effectively, ensuring efficient data flow from memory cells to voltage sources.

Career Highlights

Katuyuki Yamada is currently employed at Fujitsu Corporation, where he continues to develop advanced semiconductor technologies. His expertise in memory devices has positioned him as a key figure in the industry, contributing to Fujitsu's reputation for innovation.

Collaborations

Yamada has collaborated with notable colleagues, including Kazuhiro Toyoda and Yasuhisa Sugo. Their combined efforts have led to advancements in semiconductor technology and have furthered the development of efficient memory solutions.

Conclusion

Katuyuki Yamada's contributions to semiconductor memory technology exemplify his dedication to innovation. His patents reflect a commitment to improving access speeds and operational efficiency in memory devices. Through his work at Fujitsu Corporation, Yamada continues to influence the future of semiconductor technology.

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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