Higashiyamato, Japan

Fumio Kojima

This inventor holds 1 USPTO granted patent. Top assignees: Hitachi, Ltd., Hitachi, Vlsi Eng. Corp.. Active years: 1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Fumio Kojima. Retrieved from https://idiyas.com/inventor/fumio-kojima-y6wjtc3r

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 = 7.0

ph-index = 1

Forward Citations = 25(Granted Patents)


Company Filing History:


Years Active: 1988

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1 patent (USPTO):Explore Patents

Title: Fumio Kojima: Innovator in Semiconductor Memory Technology

Introduction

Fumio Kojima is a notable inventor based in Higashiyamato, Japan. He has made significant contributions to the field of semiconductor technology, particularly in memory systems. His innovative work has led to the development of a patent that enhances the functionality of semiconductor memory.

Latest Patents

Kojima holds a patent for a "Semiconductor memory with automatic refresh means." This invention provides a semiconductor memory equipped with automatic refresh capabilities. It includes a timer, a refresh counter, and a refresh buffer, all formed on a semiconductor chip that is mounted with an asynchronous memory. The system automatically performs periodic refresh operations based on a basic clock signal generated in response to logical changes detected in the output of the refresh counter. The automatic refresh counter is designed to perform either a read or write operation based on a regular address signal that is asynchronous with the periodic refresh operation, prioritizing these operations over the periodic refresh.

Career Highlights

Throughout his career, Fumio Kojima has worked with prominent companies in the technology sector. He has been associated with Hitachi, Ltd. and Hitachi Vlsi Engineering Corporation. His experience in these organizations has contributed to his expertise in semiconductor technology and innovation.

Collaborations

Kojima has collaborated with notable colleagues in his field, including Osamu Minato and Toshiaki Masuhara. These collaborations have likely fostered an environment of innovation and advancement in semiconductor memory technology.

Conclusion

Fumio Kojima's contributions to semiconductor memory technology through his patent and career achievements highlight his role as an influential inventor. His work continues to impact the field, showcasing the importance of innovation in technology.

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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