Mito, Japan

Shizuka Yoshii

This inventor holds 2 USPTO granted patents. Top assignee: Nippon Telegraph and Telephone Public Corporation. Active years: 1983-1986.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shizuka Yoshii. Retrieved from https://idiyas.com/inventor/shizuka-yoshii

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 4.4

ph-index = 2

Forward Citations = 90(Granted Patents)


Location History:

  • Mito, JP (1983)
  • Ibaraki, JP (1986)

Company Filing History:


Years Active: 1983-1986

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2 patents (USPTO):Explore Patents

Title: Shizuka Yoshii: Innovator in Magnetic Technology

Introduction

Shizuka Yoshii is a prominent inventor based in Mito, Japan. She has made significant contributions to the field of magnetic technology, particularly in the development of high-density recording devices. With a total of 2 patents, her work has garnered attention for its innovative approaches and practical applications.

Latest Patents

Yoshii's latest patents include a high-density magnetic head designed for digital signal recording and reproducing. This magnetic head features a C-ring shaped core that introduces leakage flux from a recording medium. It incorporates a conductor for generating bias flux, an apparatus for illuminating the core with a polarized optical beam, and a photo-detector that provides an electrical output signal related to optical strength. The design allows for high sensitivity and the capability to detect flux in small areas, making it suitable for high-density recording exceeding 8000 bits/mm. Additionally, she has developed a method for fabricating a Josephson tunnel junction device, which involves creating an oxide layer on a base electrode to serve as a tunnel barrier.

Career Highlights

Shizuka Yoshii is currently employed at Nippon Telegraph and Telephone Public Corporation, where she continues to innovate in her field. Her work has not only advanced technology but has also contributed to the understanding of magnetic materials and their applications in modern electronics.

Collaborations

Yoshii has collaborated with notable coworkers, including Osamu Michikami and Yujiro Katoh, who have contributed to her research and development efforts.

Conclusion

Shizuka Yoshii's contributions to magnetic technology and her innovative patents highlight her role as a leading inventor in her field. Her work continues to influence advancements in high-density recording technologies.

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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