Kanagawa, Japan

Yoshiyuki Kiyosawa

This inventor holds 4 USPTO granted patents and 1 published patent application and 1 EPO patent. Top assignees: Ricoh Company, Ltd., Ricoh Research Institute of General Electronics. Active years: 1995-2011.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshiyuki Kiyosawa. Retrieved from https://idiyas.com/inventor/yoshiyuki-kiyosawa

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

Calculating rank
USPTO Granted Patents = 4 

% Patents Active = 75.0

 

Average Co-Inventor Count = 2.5

ph-index = 3

Forward Citations = 16(Granted Patents)


Location History:

  • Natori, JP (1995)
  • Kanagawa, JP (2002 - 2004)
  • Miyagi, JP (2011)

Company Filing History:


Years Active: 1995-2011

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4 patents (USPTO):Explore Patents

Title: The Innovations of Yoshiyuki Kiyosawa

Introduction

Yoshiyuki Kiyosawa is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of optical elements and magnetic field probes. With a total of 4 patents to his name, Kiyosawa's work showcases his expertise and innovative spirit.

Latest Patents

Kiyosawa's latest patents include an optical element and an optical device. The disclosed optical element features a transparent substrate and a subwavelength structure layer with a different refractive index. This design includes a minute concave and convex structure of one-dimensional grating, which is formed on the subwavelength structure layer. Additionally, an open hole portion is created to communicate with the concave portion, enhancing the optical performance.

Another significant patent is a magnetic field probe that incorporates a shielding layer to protect lead wires with an isolating layer. This magnetic field probe consists of a substrate and a conductive layer that includes a coil, lead wires, and pads. The design ensures that the signal from the coil is transmitted effectively while preventing distortion of the magnetic field.

Career Highlights

Throughout his career, Kiyosawa has worked with prominent companies such as Ricoh Company, Ltd. and Ricoh Research Institute of General Electronics. His experience in these organizations has contributed to his development as an inventor and innovator in his field.

Collaborations

Kiyosawa has collaborated with notable coworkers, including Futoyoshi Kou and Hideaki Hirai. These partnerships have likely fostered a creative environment that has led to the development of his innovative patents.

Conclusion

Yoshiyuki Kiyosawa's contributions to optical elements and magnetic field probes highlight his innovative capabilities. His patents reflect a deep understanding of technology and a commitment to advancing the field. Kiyosawa's work continues to inspire future innovations in the industry.

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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