Hamamatsu, Japan

Erika Yamamoto

This inventor holds 1 USPTO granted patent and 1 published patent application. Top assignee: Toyota Battery Co., Ltd.. Active years: 2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Erika Yamamoto. Retrieved from https://idiyas.com/inventor/erika-yamamoto

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

Calculating rank
USPTO Granted Patents = 1 

% Patents Active = 100.0

Average Co-Inventor Count = 1.0

ph-index = 1


Company Filing History:


Years Active: 2026

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1 patent (USPTO):Explore Patents

Title: Erika Yamamoto: Lithium-Ion Battery State Determination

Introduction

Erika Yamamoto is an inventor associated with Hamamatsu, Japan, and Toyota Battery Co., Ltd. Her patent work addresses the assessment of lithium-ion rechargeable battery conditions, including whether lithium has deposited on a battery’s negative electrode.

Latest Patents

Yamamoto is credited with 1 patent: “State determination device for lithium-ion rechargeable battery.” The invention uses stored mapping data and an execution device to assess lithium deposition. The mapping takes as input a variable representing the difference between the negative-electrode active material’s surface concentration and its average concentration, then provides information on whether lithium deposition has occurred.

Career Highlights

The available information identifies Yamamoto’s work in battery-state determination and her association with Toyota Battery Co., Ltd. Her patented device focuses on using concentration differences to support lithium-deposition assessment.

Collaborations

Yamamoto’s listed company affiliation is Toyota Battery Co., Ltd. The provided information does not specify collaborators or additional institutional partnerships.

Conclusion

Erika Yamamoto’s patent describes a mapping-based approach to determining lithium deposition in lithium-ion rechargeable batteries, reflecting her contribution to battery monitoring 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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