Odawara, Japan

Nobuyuki Okamoto

This inventor holds 2 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1987-1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nobuyuki Okamoto. Retrieved from https://idiyas.com/inventor/nobuyuki-okamoto-duq97mke

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 = 4.5

ph-index = 2

Forward Citations = 19(Granted Patents)


Company Filing History:


Years Active: 1987-1998

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2 patents (USPTO):Explore Patents

Title: Nobuyuki Okamoto: Innovator in Magnetic Disk Technology

Introduction

Nobuyuki Okamoto is a prominent inventor based in Odawara, Japan. He has made significant contributions to the field of magnetic disk technology, holding a total of 2 patents. His work focuses on enhancing the performance and reliability of magnetic disk devices.

Latest Patents

Okamoto's latest patents include a "Magnetic disk device for detecting a floating state of a magnetic head" and a "Magnetic disk storage device with shroud enclosing disk assembly." The first patent addresses the detection of the floating state of a magnetic head by utilizing gain information stored in an AGC control memory circuit. This innovation allows for the reproduction of data that varies according to the flotation and position of the magnetic head. The system can detect voltage amplitude variations and phase differences, enabling the calculation of float intervals and position variations. This proactive approach helps prevent potential damage to the magnetic head and disk.

The second patent focuses on a magnetic disk storage device designed to minimize vibrations and off-track issues. It features an inner shroud that encloses a disk assembly, preventing turbulent airflow and thermal off-track of the magnetic heads. The design includes ports for access arms and a cylindrical filter to remove dust, ensuring optimal performance and longevity of the device.

Career Highlights

Nobuyuki Okamoto is associated with Hitachi, Ltd., a leading company in technology and innovation. His work at Hitachi has allowed him to develop groundbreaking technologies that enhance the functionality of magnetic disk devices.

Collaborations

Okamoto has collaborated with notable coworkers, including Muneo Iida and Jyosei Simizu. Their combined expertise has contributed to the advancement of magnetic disk technology.

Conclusion

Nobuyuki Okamoto's contributions to magnetic disk technology have significantly impacted the industry. His innovative patents demonstrate a commitment to improving device performance and reliability. His work continues to influence advancements in the field, ensuring that magnetic disk technology remains at the forefront of innovation.

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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