Tokyo, Japan

Yoshiko Obiraki

This inventor holds 15 USPTO granted patents and 1 published patent application. Top assignee: Mitsubishi Electric Corporation. Active years: 2012-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshiko Obiraki. Retrieved from https://idiyas.com/inventor/yoshiko-obiraki

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

USPTO Granted Patents = 15 

% Patents Active = 93.3

Average Co-Inventor Count = 3.4

ph-index = 4

Forward Citations = 46(Granted Patents)


Location History:

  • Chiyoda-ku, JP (2017 - 2018)
  • Tokyo, JP (2012 - 2020)

Company Filing History:


Years Active: 2012-2020

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15 patents (USPTO):Explore Patents

Title: The Innovations of Yoshiko Obiraki

Introduction

Yoshiko Obiraki is a prominent inventor based in Tokyo, Japan. She has made significant contributions to the field of semiconductor technology, holding a total of 15 patents. Her work focuses on developing innovative semiconductor devices that enhance performance and reduce production costs.

Latest Patents

One of her latest patents is a semiconductor device designed to provide a plate electrode adapted to a plurality of chips. This invention aims to produce a semiconductor device at low cost while ensuring high heat cycle properties. The device includes multiple semiconductor chips formed on a substrate, with a plate electrode connecting the electrodes of these chips. The plate electrode features half-cut portions created by half-pressing, allowing the raised sides to bond with the semiconductor chip electrodes.

Another notable patent is for a power semiconductor module and power conversion device. This invention addresses the challenge of reducing inductance variation between upper and lower arms, which can lead to current variation. The power semiconductor module consists of circuit blocks configured by connecting self-arc-extinguishing type semiconductor elements in series. It includes multiple terminals and wiring patterns that enhance the overall efficiency and reliability of the device.

Career Highlights

Yoshiko Obiraki is currently employed at Mitsubishi Electric Corporation, where she continues to innovate in the semiconductor field. Her work has garnered attention for its practical applications and contributions to advancing technology.

Collaborations

Throughout her career, Yoshiko has collaborated with notable colleagues, including Seiji Oka and Takeshi Oi. These partnerships have fostered a creative environment that encourages the development of groundbreaking technologies.

Conclusion

Yoshiko Obiraki's contributions to semiconductor technology exemplify her dedication to innovation and excellence. Her patents reflect a commitment to improving device performance while maintaining cost-effectiveness. Her work continues to influence the industry and inspire future advancements in 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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