Kawasaki, Japan

Kiyoshi Sakuma

This inventor holds 2 USPTO granted patents. Top assignee: Fujitsu Corporation. Active years: 2004-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kiyoshi Sakuma. Retrieved from https://idiyas.com/inventor/kiyoshi-sakuma-nra0upsj

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

Calculating rank

% Patents Active = 50.0

Average Co-Inventor Count = 8.0

ph-index = 1

Forward Citations = 4(Granted Patents)


Company Filing History:


Years Active: 2004-2006

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2 patents (USPTO):Explore Patents

Title: Kiyoshi Sakuma: Innovator in Magnetic Disk Technology

Introduction

Kiyoshi Sakuma is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the field of magnetic disk technology, holding 2 patents that showcase his innovative approach to engineering challenges.

Latest Patents

Sakuma's latest patents include a magnetic disk apparatus and a method for monitoring high-frequency oscillation components. The magnetic disk apparatus features a design that incorporates normal and double servo sectors arranged alternately. This design allows for a unique servo interruption period that optimizes performance. Additionally, the controller circuit he developed is designed to position a head in a recording medium drive based on a filtered positioning control signal. This system effectively generates a positioning control signal that accounts for the positional deviation of the head from a target recording track. The feedback control mechanism ensures precise positioning, even as temperature variations affect the resonant frequency.

Career Highlights

Kiyoshi Sakuma is currently employed at Fujitsu Corporation, where he continues to push the boundaries of technology. His work has been instrumental in advancing magnetic disk technology, making significant impacts in data storage solutions.

Collaborations

Throughout his career, Sakuma has collaborated with esteemed colleagues such as Mitsuo Kamimura and Yoshinari Higashino. These partnerships have fostered a creative environment that has led to innovative breakthroughs in their field.

Conclusion

Kiyoshi Sakuma's contributions to magnetic disk technology exemplify the spirit of innovation. His patents reflect a deep understanding of engineering principles and a commitment to advancing technology. His work continues to influence the industry and inspire future inventors.

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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