Higashihiroshima, Japan

Hiroshi Matsukawa

This inventor holds 1 USPTO granted patent. Top assignee: Sharp Kabushiki Kaisha Corporation. Active years: 1997.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Matsukawa. Retrieved from https://idiyas.com/inventor/hiroshi-matsukawa-43v6t58e

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 = 3.0

ph-index = 1

Forward Citations = 3(Granted Patents)


Company Filing History:


Years Active: 1997

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1 patent (USPTO):Explore Patents

Title: Hiroshi Matsukawa: Innovator in Disk Reproducing Technology

Introduction

Hiroshi Matsukawa is a notable inventor based in Higashihiroshima, Japan. He has made significant contributions to the field of disk reproducing technology. His innovative designs have led to the development of efficient and cost-effective devices.

Latest Patents

Matsukawa holds a patent for a "Disk reproducing apparatus with plural disk trays." This invention features a flexible rack member with a V-shaped cam portion and a U-shaped guide slit on the housing wall. The design allows for the movement of a reproducing unit between trays, enabling the opening and closing of each tray in a synchronized manner. This arrangement results in an inexpensive disk reproducing device that operates with precise timing.

Career Highlights

Hiroshi Matsukawa is associated with Sharp Kabushiki Kaisha Corporation, where he has been instrumental in advancing disk reproducing technology. His work has not only enhanced the functionality of disk devices but has also contributed to the overall efficiency of the company's product offerings.

Collaborations

Matsukawa has collaborated with notable colleagues such as Satoru Koizumi and Hiroaki Miyashige. Their combined expertise has fostered innovation and development within their projects.

Conclusion

Hiroshi Matsukawa's contributions to disk reproducing technology exemplify the impact of innovative thinking in engineering. His patent and collaborative efforts continue to influence the industry positively.

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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