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For the Inventor, By the Inventor

Kariya-city, Japan

Yuji Yamagami

This inventor holds 3 USPTO granted patents and 1 published patent application. Top assignee: Denso Corporation. Active years: 2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yuji Yamagami. Retrieved from https://idiyas.com/inventor/yuji-yamagami-7jkbthgn

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

Calculating rank
USPTO Granted Patents = 3 

Average Co-Inventor Count = 4.0


Company Filing History:

goldMedal3 out of 20,443 
 
Denso Corporation
 patents

Years Active: 2026

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3 patents (USPTO):Explore Patents
1. 12687586 - Control device for secondary battery (2026-07-21),
2. 12656404 - Secondary battery system (2026-06-16),
3. 12638508 - Battery measurement apparatus (2026-05-26),

Title: Yuji Yamagami: Innovator in Battery Technology

Introduction

Yuji Yamagami is a prominent inventor based in Kariya-city, Japan. He has made significant contributions to the field of battery technology, holding 3 patents that showcase his innovative approach to energy storage solutions.

Latest Patents

Yamagami's latest patents include a secondary battery system and a battery measurement apparatus. The secondary battery system features an electrode body impregnated with an electrolytic solution containing metal ions. This system is designed to measure the impedance of the secondary battery and detect high-rate deterioration caused by uneven concentration of the metal ions. The battery measurement apparatus includes a signal control unit that allows the storage battery to output or input a predetermined alternating-current signal. It also features a calculating unit that determines information related to the complex impedance of the storage battery, ensuring accuracy within a range of ±1 mΩ.

Career Highlights

Yuji Yamagami is currently associated with Denso Corporation, a leading global automotive components manufacturer. His work at Denso has allowed him to focus on advancing battery technologies that are crucial for electric vehicles and energy storage systems.

Collaborations

Due to space constraints, the collaborations section will be omitted.

Conclusion

Yuji Yamagami's contributions to battery technology through his innovative patents reflect his expertise and commitment to advancing energy solutions. His work continues to influence the development of efficient and reliable battery systems.

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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