Ibaraki, Japan

Fujio Matsumoto

This inventor holds 3 USPTO granted patents. Top assignee: Hitachi Maxell, Limited. Active years: 1987-1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Fujio Matsumoto. Retrieved from https://idiyas.com/inventor/fujio-matsumoto

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 = 4.0

ph-index = 3

Forward Citations = 34(Granted Patents)


Location History:

  • Ibaraki, JP (1987 - 1989)
  • Tsukuba, JP (1990)

Company Filing History:


Years Active: 1987-1990

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3 patents (USPTO):Explore Patents

Title: Fujio Matsumoto: Innovator in Disk Cartridge Technology

Introduction

Fujio Matsumoto is a notable inventor based in Ibaraki, Japan. He has made significant contributions to the field of disk cartridge technology, holding a total of 3 patents. His innovative designs have enhanced the functionality and efficiency of disk cartridges, making them more reliable for users.

Latest Patents

Matsumoto's latest patents include a disk cartridge that features a cartridge case, a disk rotatably encased within the cartridge, and a cleaning sheet supported on the inside surface of the cartridge case by welding. The cartridge case is made from a thermoplastic synthetic resin, while the cleaning sheet is composed of a mixed fabric of acrylic fibers and rayon fibers. This design provides distinguished disk-handling characteristics and cartridge case-fixing characteristics. Another patent involves a disk cartridge with a cleaning sheet made of non-woven fabric, primarily composed of acrylic fibers on the disk-facing side. This design also utilizes ultrasonic or heat welding to secure the cleaning sheet to the inside surfaces of the cartridge case, further enhancing its performance.

Career Highlights

Fujio Matsumoto is currently associated with Hitachi Maxell, Limited, where he continues to innovate in the field of disk technology. His work has been instrumental in advancing the design and functionality of disk cartridges, contributing to the overall improvement of data storage solutions.

Collaborations

Matsumoto has collaborated with notable coworkers such as Hajime Doi and Kunio Mizushima, who have also contributed to advancements in technology within their respective fields.

Conclusion

Fujio Matsumoto's contributions to disk cartridge technology have made a lasting impact on the industry. His innovative designs and patents reflect his commitment to enhancing the efficiency and reliability of data storage solutions.

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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