Numazu, Japan

Hiroshi Ishikawa

This inventor holds 1 USPTO granted patent. Top assignee: Hitachi Global Storage Technologies Japan, Ltd.. Active years: 2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Ishikawa. Retrieved from https://idiyas.com/inventor/hiroshi-ishikawa-msl4odld

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 = 10.0

ph-index = 1

Forward Citations = 5(Granted Patents)


Company Filing History:


Years Active: 2006

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1 patent (USPTO):Explore Patents

Title: Hiroshi Ishikawa: Innovator in Magnetic Recording Technology

Introduction

Hiroshi Ishikawa is a prominent inventor based in Numazu, Japan. He is known for his significant contributions to the field of magnetic recording technology. His innovative work has led to advancements that enhance the reliability and performance of magnetic recording apparatuses.

Latest Patents

Ishikawa holds a patent for a magnetic recording medium, the manufacturing method, and a magnetic recording apparatus using the same. This magnetic recording medium is characterized by having a magnetic layer on a non-magnetic substrate, intercalated with at least an under layer. The unique aspect of this invention is that the proportion of functional groups per 100 carbon atoms in a diamond-like carbon protective layer exceeds 20%. This design increases the bonding force between the protective layer and the lubricating layer, ensuring that under high-speed rotation, the lubricating layer remains intact. This innovation provides a magnetic recording apparatus with high reliability.

Career Highlights

Hiroshi Ishikawa has made a significant impact in his field while working at Hitachi Global Storage Technologies Japan, Ltd. His expertise in magnetic recording technology has positioned him as a key figure in the industry.

Collaborations

Throughout his career, Ishikawa has collaborated with notable colleagues, including Toshinori Ono and Yuuichi Kokaku. These collaborations have furthered advancements in magnetic recording technologies.

Conclusion

Hiroshi Ishikawa's contributions to magnetic recording technology exemplify his innovative spirit and dedication to enhancing the reliability of recording apparatuses. His work continues to influence the industry and pave the way for future advancements.

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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