Kawasaki, Japan

Shigeki Nagasaka

This inventor holds 17 USPTO granted patents and 2 published patent applications. Top assignees: Toshiba Memory Corporation, Kioxia Corporation, Kabushiki Kaisha Toshiba. Active years: 1998-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeki Nagasaka. Retrieved from https://idiyas.com/inventor/shigeki-nagasaka

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

USPTO Granted Patents = 17 

% Patents Active = 94.1

Average Co-Inventor Count = 2.8

ph-index = 4

Forward Citations = 49(Granted Patents)


Location History:

  • Fuchu, JP (1998 - 1999)
  • Kawasaki, JP (2017 - 2023)

Company Filing History:


Years Active: 1998-2026

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17 patents (USPTO):Explore Patents

Title: The Innovative Journey of Shigeki Nagasaka

Introduction: Shigeki Nagasaka is a prominent inventor based in Kawasaki, Japan. With an impressive portfolio of 16 patents, he has made significant contributions to the fields of memory systems and semiconductor devices, showcasing his expertise and innovative spirit.

Latest Patents: Nagasaka's latest patents reflect his deep understanding of modern technology. One notable invention is a **Memory System** that comprises a memory chip and a memory controller. This memory system is designed to enhance performance during power-on setup by managing and utilizing setup data stored in the memory chip. When the memory controller lacks access to this setup data, it prompts the memory chip to retrieve necessary information for initial setup operations. Conversely, if the setup data is available, the controller transmits it to the memory chip to facilitate a different setup operation.

Another of his significant patents is a **Semiconductor Device**, which integrates a memory circuit, two FIFO (First In, First Out) circuits, and an input/output circuit. This device streamlines data processing by ensuring synchronization with the first clock signal while optimizing the arrangement of its components for improved efficiency.

Career Highlights: Throughout his career, Shigeki Nagasaka has worked with notable companies, including Toshiba Memory Corporation and Kioxia Corporation. His roles within these organizations have allowed him to explore innovative avenues and contribute to the development of cutting-edge memory technologies.

Collaborations: Nagasaka's journey has been enriched by collaborations with skilled professionals in his field. Among his notable coworkers are Shinya Okuno and Toshiyuki Kouchi, with whom he has shared ideas and expertise to push the boundaries of technological advancements.

Conclusion: Shigeki Nagasaka is a distinguished inventor whose work in memory systems and semiconductor devices has left a lasting impact on the technology landscape. With his remarkable patent portfolio and collaborative spirit, he continues to inspire future innovations within the 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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