Kyoto, Japan

Yoshifumi Yamamichi

This inventor holds 5 USPTO granted patents. Top assignee: Rohm Co., Ltd.. Active years: 1997-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshifumi Yamamichi. Retrieved from https://idiyas.com/inventor/yoshifumi-yamamichi

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

Calculating rank

% Patents Active = 80.0

Average Co-Inventor Count = 1.7

ph-index = 2

Forward Citations = 77(Granted Patents)


Company Filing History:


Years Active: 1997-2012

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5 patents (USPTO):Explore Patents

Title: Innovations of Yoshifumi Yamamichi

Introduction

Yoshifumi Yamamichi is a notable inventor based in Kyoto, Japan. He has made significant contributions to the field of electrical engineering, particularly in capacitor charging technology. With a total of 5 patents to his name, his work continues to influence advancements in this area.

Latest Patents

Yamamichi's latest patents include a capacitor charging apparatus that features a transformer and an output capacitor. This apparatus is designed to charge the output capacitor using current flowing through a secondary coil of the transformer. The system performs switching control of a switching transistor located on a path leading to the primary coil of the transformer. A switching control unit is responsible for managing the on and off states of the switching transistor. Additionally, a voltage detector monitors the voltage at a tap provided in the secondary coil of the transformer. The switching control unit uses the voltage detected by the voltage detector as the output voltage of the capacitor charging apparatus, thereby controlling the switching transistor effectively.

Career Highlights

Yoshifumi Yamamichi is currently employed at Rohm Co., Ltd., where he continues to innovate and develop new technologies. His work has been instrumental in enhancing the efficiency and reliability of capacitor charging systems.

Collaborations

Yamamichi collaborates with Shinya Kobayashi, a fellow innovator, to further advance their projects and share insights in their field.

Conclusion

Yoshifumi Yamamichi's contributions to capacitor charging technology exemplify his dedication to innovation. His patents reflect a commitment to improving electrical engineering practices, and his work at Rohm Co., Ltd. continues to pave the way for future advancements.

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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