Kawagoe, Japan

Nobutaka Shimamura

This inventor holds 8 USPTO granted patents and 1 EPO patent. Top assignees: Wako Pure Chemical Industries, Inc., Fujifilm Wako Pure Chemical Corporation, Osaka Municipal Government. Active years: 1998-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nobutaka Shimamura. Retrieved from https://idiyas.com/inventor/nobutaka-shimamura-b05jad15

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


% Patents Active = 87.5


Average Co-Inventor Count = 3.0

ph-index = 2

Forward Citations = 9(Granted Patents)


Location History:

  • Kawagoe, JP (1998 - 2001)
  • Saitama, JP (1999 - 2022)

Company Filing History:


Years Active: 1998-2022

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8 patents (USPTO):Explore Patents

Title: Nobutaka Shimamura: Innovator in Lithium and Magnesium Battery Technologies

Introduction

Nobutaka Shimamura is a prominent inventor based in Kawagoe, Japan. He has made significant contributions to the field of battery technology, particularly in lithium and magnesium batteries. With a total of 8 patents to his name, Shimamura's work addresses critical challenges in energy storage solutions.

Latest Patents

One of his latest patents is a binder agent composition for lithium batteries. This invention aims to provide an excellent binder agent composition that resolves issues such as the decrease in charge/discharge capacity when using silicon-containing active materials. The binder agent composition includes polymers containing polyacrylic acid, a bivalent to decavalent alcohol, and water. Additionally, he has developed a slurry composition for lithium batteries that incorporates a silicon-containing active material, a conductive assistant, and the binder agent composition. Furthermore, Shimamura's work includes a method for preparing electrodes for lithium batteries, which involves coating a current collector with the slurry composition and subsequently drying it.

Another notable patent is a phosphorus electrolytic solution containing magnesium ions. This invention pertains to an electrolytic solution for magnesium batteries, formed by mixing specific compounds and solvents. The solution is designed to enhance the performance and efficiency of magnesium batteries.

Career Highlights

Throughout his career, Nobutaka Shimamura has worked with reputable companies such as Wako Pure Chemical Industries, Inc. and Fujifilm Wako Pure Chemical Corporation. His experience in these organizations has contributed to his expertise in battery technology and materials science.

Collaborations

He has collaborated with notable colleagues, including Kazuo Shiraki and Hiromi Watahiki, further enriching his work and contributions to the field.

Conclusion

Nobutaka Shimamura's innovative patents and career achievements highlight his significant role in advancing battery technology. His work continues to influence the development of more efficient energy storage solutions.

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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