Nara, Japan

Sigeaki Kakiwaki

This inventor holds 1 USPTO granted patent. Top assignee: Sharp Kabushiki Kaisha Corporation. Active years: 1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sigeaki Kakiwaki. Retrieved from https://idiyas.com/inventor/sigeaki-kakiwaki

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 = 7.0

ph-index = 1

Forward Citations = 4(Granted Patents)


Company Filing History:


Years Active: 1996

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1 patent (USPTO):Explore Patents

Title: Sigeaki Kakiwaki: Innovator in Magnetic Recording Technology

Introduction

Sigeaki Kakiwaki is a notable inventor based in Nara, Japan. He has made significant contributions to the field of magnetic recording technology. His innovative approach has led to the development of a unique apparatus that enhances the performance and efficiency of magnetic tape systems.

Latest Patents

Kakiwaki holds a patent for a magnetic recording/reproducing apparatus. This invention compares speed information obtained by speed detecting means for a magnetic tape with a set travelling speed of the magnetic tape in a control circuit. It controls the rotational frequency of a driving motor for a take-up reel, thereby ensuring constant-speed travelling of the magnetic tape without the need for a capstan. This system simplifies and miniaturizes the overall apparatus while reducing weight and cost. Additionally, it improves the constant-speed travelling performance of the magnetic tape by adjusting resonance and antiresonance related to the total equivalent inertia moment in the control system.

Career Highlights

Kakiwaki is associated with Sharp Kabushiki Kaisha Corporation, where he has been able to apply his innovative ideas in a practical setting. His work has contributed to advancements in magnetic recording technology, showcasing his expertise and dedication to the field.

Collaborations

Kakiwaki has collaborated with notable coworkers such as Tatsushi Yamamoto and Tohru Okuda. Their combined efforts have furthered the development of technologies in their respective areas of expertise.

Conclusion

Sigeaki Kakiwaki's contributions to magnetic recording technology exemplify the impact of innovation in enhancing performance and efficiency. His patent reflects a significant advancement in the field, showcasing his role as a leading inventor.

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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