Susono, Japan

Hironao Fujii

This inventor holds 11 USPTO granted patents and 2 published patent applications and 5 EPO patents. Top assignee: Yazaki Corporation. Active years: 2016-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hironao Fujii. Retrieved from https://idiyas.com/inventor/hironao-fujii

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

USPTO Granted Patents = 11 

% Patents Active = 100.0

 

Average Co-Inventor Count = 2.2

ph-index = 1

Forward Citations = 4(Granted Patents)


Location History:

  • Susono, JP (2016 - 2021)
  • Shizuoka, JP (2019 - 2023)

Company Filing History:


Years Active: 2016-2023

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11 patents (USPTO):Explore Patents

Title: Hironao Fujii: Innovator in Voltage Detection and Battery Monitoring Technologies

Introduction

Hironao Fujii is a prominent inventor based in Susono, Japan. He has made significant contributions to the field of electrical engineering, particularly in voltage detection and battery monitoring technologies. With a total of 11 patents to his name, Fujii continues to push the boundaries of innovation in his field.

Latest Patents

Fujii's latest patents include a voltage detection device and a battery monitoring device. The voltage detection device features a circuit that includes a differential amplification circuit and a microcontroller unit (MCU). The MCU detects a differential voltage output from operational amplifiers and calculates the internal resistance value of a battery cell based on the detected differential voltage. Additionally, the MCU controls an amplification factor adjustment circuit to optimize the performance of the operational amplifiers.

The battery monitoring device employs an amplifier circuit that outputs an amplified differential voltage value. This value is obtained by amplifying the differential voltage between a first voltage value of a battery and a reference voltage value. A CPU calculates the internal resistance value of the battery based on the amplified differential voltage values and current values adjusted by a constant current circuit.

Career Highlights

Fujii is currently employed at Yazaki Corporation, where he applies his expertise in developing innovative solutions for battery technology. His work has been instrumental in enhancing the efficiency and reliability of battery systems.

Collaborations

Fujii collaborates with talented individuals such as Jian Wang and Kei Matsumoto, contributing to a dynamic team focused on advancing battery technology.

Conclusion

Hironao Fujii is a distinguished inventor whose work in voltage detection and battery monitoring has made a significant impact in the field of electrical engineering. His innovative patents and contributions continue to shape the future of battery 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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