Kawasaki, Japan

Kumiko Yagi

This inventor holds 1 USPTO granted patent. Top assignee: Hitachi, Ltd.. Active years: 1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kumiko Yagi. Retrieved from https://idiyas.com/inventor/kumiko-yagi

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 = 1

Forward Citations = 38(Granted Patents)


Company Filing History:


Years Active: 1999

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1 patent (USPTO):Explore Patents

Title: Kumiko Yagi: Innovator in File Control Systems

Introduction

Kumiko Yagi is a notable inventor based in Kawasaki, Japan. She has made significant contributions to the field of file control systems, showcasing her expertise through her innovative patent. Her work is recognized for its practical applications in data management and storage.

Latest Patents

Kumiko Yagi holds a patent for a "File control method and system for allocating a free block to a file." This invention involves a file control method that saves the number of a block first allocated to a file in external memory. It records data and the number of a block to be next linked or a flag indicative of an idle block in each block, allowing for the restoration of file information. The system also records a version of each block, facilitating easy access to a data block of the specified version. The method ensures that the head block number in the file is always saved in an allocated block list of a file information area.

Career Highlights

Kumiko Yagi is currently employed at Hitachi, Ltd., where she continues to develop innovative solutions in technology. Her work has contributed to advancements in data storage and management systems, making her a valuable asset to her company.

Collaborations

Kumiko has collaborated with notable colleagues, including Nozomu Hirose and Miho Iwanaga, who have also contributed to various projects within the company.

Conclusion

Kumiko Yagi's contributions to file control systems exemplify her innovative spirit and dedication to advancing technology. Her patent reflects her ability to solve complex problems in data management, making her a prominent figure in her 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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