Odawara, Japan

Haruhiko Hosokawa

This inventor holds 5 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1991-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Haruhiko Hosokawa. Retrieved from https://idiyas.com/inventor/haruhiko-hosokawa

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


% Patents Active = 100.0

Average Co-Inventor Count = 5.7

ph-index = 3

Forward Citations = 34(Granted Patents)


Location History:

  • Odawara, JP (1991 - 1999)
  • Kanagawa-ken, JP (1999 - 2000)

Company Filing History:


Years Active: 1991-2000

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5 patents (USPTO):Explore Patents

Title: Haruhiko Hosokawa: Innovator in Magnetic Disk Technology

Introduction

Haruhiko Hosokawa is a prominent inventor based in Odawara, Japan. He has made significant contributions to the field of magnetic disk technology, holding a total of 5 patents. His work focuses on enhancing the reliability and performance of magnetic disk devices.

Latest Patents

One of Hosokawa's latest patents is a magnetic disk device with a dummy write function. This innovative device is designed to suppress waveform degradation of signals reproduced by magnetic heads at high speeds. When a waveform deformation occurs in the No.0 head, the controller seamlessly switches to the No.1 head, which operates normally. The device then seeks the cylinder portion for dummy operation based on servo information from the No.1 head. This process ensures that the dummy write operation can effectively prevent waveform deformation of the reproduced signal from the No.0 head.

Career Highlights

Haruhiko Hosokawa has built a successful career at Hitachi, Ltd., where he has been instrumental in developing advanced magnetic disk technologies. His expertise in this area has led to numerous innovations that enhance data storage and retrieval processes.

Collaborations

Throughout his career, Hosokawa has collaborated with notable colleagues, including Akio Takatsuka and Katsuhiro Tsuneta. These partnerships have fostered a creative environment that has contributed to the advancement of magnetic disk technology.

Conclusion

Haruhiko Hosokawa's contributions to magnetic disk technology exemplify his innovative spirit and dedication to improving data storage solutions. His patents reflect a commitment to enhancing the reliability and performance of magnetic devices, making a lasting 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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