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For the Inventor, By the Inventor

Yokohama, Japan

Atsuko Fukushima

This inventor holds 5 USPTO granted patents. Top assignees: Hitachi, Ltd., Other. Active years: 1991-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Atsuko Fukushima. Retrieved from https://idiyas.com/inventor/atsuko-fukushima

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

USPTO Granted Patents = 5

% Patents Active = 100.0

Average Co-Inventor Count = 7.3

ph-index = 5

Forward Citations = 117(Granted Patents)


Location History:

  • Totsuka-ku, Yokohama, JP (1991)
  • Yokohama, JP (1992 - 1993)

Company Filing History:

goldMedal4 out of 42,731 
 
Hitachi, Ltd.
 patents
silverMedal1 out of 834,513 
Other
 patents

Years Active: 1991-1993

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5 patents (USPTO):Explore Patents
1. 5274727 - Second harmonic generator and method of fabrication thereof (1993-12-28),
2. 5195070 - Optical information processing apparatus and optical pickup therefor (1993-03-16),
3. 5191624 - Optical information storing apparatus and method for production of (1993-03-02),
4. 5125740 - Method and apparatus for measuring optical constants of a thin film as (1992-06-30),
5. 5070488 - Optical integrated circuit and optical apparatus (1991-12-03),

Title: Atsuko Fukushima: Innovator in Optical Technologies

Introduction

Atsuko Fukushima is a prominent inventor based in Yokohama, Japan. She has made significant contributions to the field of optical technologies, holding a total of 5 patents. Her work focuses on enhancing the efficiency and functionality of optical devices.

Latest Patents

One of her latest patents is a second harmonic generator and method of fabrication thereof. This invention features a wide acceptance of bandwidth of temperature and high conversion efficiency. It utilizes a unique structure formed through the liquid-phase epitaxial method and the ion-implanting method. Another notable patent is for an optical information processing apparatus and optical pickup. This device allows for the recording and reproducing of information by using multiple light beams to interact with an optical recording medium.

Career Highlights

Atsuko has worked with notable companies, including Hitachi, Ltd. Her experience in these organizations has contributed to her expertise in optical technologies and innovation.

Collaborations

Throughout her career, Atsuko has collaborated with esteemed colleagues such as Kazumi Kawamoto and Kenchi Ito. These partnerships have further enriched her work and contributions to the field.

Conclusion

Atsuko Fukushima is a trailblazer in optical technology, with a focus on improving device efficiency and functionality. Her innovative patents and collaborations highlight her significant impact in the field.

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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