Ehime, Japan

Yuji Kawakami

This inventor holds 4 USPTO granted patents and 1 published patent application. Top assignee: Sumitomo Metal Mining Company, Ltd.. Active years: 2017-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yuji Kawakami. Retrieved from https://idiyas.com/inventor/yuji-kawakami

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 = 50.0

Average Co-Inventor Count = 2.5

ph-index = 1

Forward Citations = 3(Granted Patents)


Location History:

  • Ehime, JP (2017 - 2021)
  • Niihama, JP (2023)

Company Filing History:


Years Active: 2017-2023

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4 patents (USPTO):Explore Patents

Title: Yuji Kawakami: Innovator in Lithium-Ion Battery Technology

Introduction

Yuji Kawakami is a prominent inventor based in Ehime, Japan, known for his significant contributions to the field of lithium-ion battery technology. With a total of 4 patents to his name, Kawakami has made strides in developing materials that enhance the performance and efficiency of batteries.

Latest Patents

Kawakami's latest patents include innovative methods for producing positive electrode active materials for lithium-ion secondary batteries. One notable patent describes a production method that involves a firing process of a mixture of nickel and lithium compounds, followed by a water washing process. This method ensures that the lithium-nickel composite oxide powder achieves optimal performance by maintaining a specific ratio of lithium to transition metals. Another significant patent focuses on a nickel complex oxide with a carbon content of 0.15% by mass or lower, which is crucial for improving battery efficiency.

Career Highlights

Yuji Kawakami is currently employed at Sumitomo Metal Mining Company, Ltd., where he continues to innovate in the field of battery technology. His work has been instrumental in advancing the capabilities of lithium-ion batteries, which are essential for various applications, including electric vehicles and portable electronics.

Collaborations

Kawakami has collaborated with notable colleagues such as Tomomichi Nihei and Toshiaki Terao, contributing to a dynamic research environment that fosters innovation and development in battery technology.

Conclusion

Yuji Kawakami's contributions to lithium-ion battery technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence the future of 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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