Kanagawa, Japan

Hiroshi Yoshikawa

This inventor holds 7 USPTO granted patents and 3 published patent applications. Top assignees: Sony Corporation, Amada Metrecs Co., Ltd., Canon Kabushiki Kaisha. Active years: 1990-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Yoshikawa. Retrieved from https://idiyas.com/inventor/hiroshi-yoshikawa-rie1i2l3

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank
USPTO Granted Patents = 7 

% Patents Active = 71.4

Average Co-Inventor Count = 2.3

ph-index = 2

Forward Citations = 98(Granted Patents)


Company Filing History:


Years Active: 1990-2026

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7 patents (USPTO):Explore Patents

Title: Hiroshi Yoshikawa: Innovator in Multiprocessor Data Transfer Technologies

Introduction

Hiroshi Yoshikawa is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of data transfer in multiprocessor systems. With a total of 7 patents to his name, his work has had a lasting impact on technology.

Latest Patents

Yoshikawa's latest patents focus on enhancing data transfer efficiency in multiprocessor systems utilizing shared cache memory. One of his notable inventions involves a method where each entry in a tag storage section of a cache memory holds a reference number field, alongside a tag address field, a valid field, and a dirty field. This reference number field is set during data writes and decremented after each read access. When the reference number changes from '1' to '0', the entry is invalidated without requiring a write-back operation. This innovation allows the cache memory to function as a shared FIFO, automatically deleting used data when employed for communication between processors.

Career Highlights

Throughout his career, Yoshikawa has worked with notable companies such as Sony Corporation and Fuji Electric Co., Ltd. His experience in these organizations has contributed to his expertise in the field of multiprocessor systems and data transfer technologies.

Collaborations

Yoshikawa has collaborated with several talented individuals, including Hiroaki Sakaguchi and Taichi Hirao. These collaborations have further enriched his work and innovations in the technology sector.

Conclusion

Hiroshi Yoshikawa's contributions to multiprocessor data transfer technologies demonstrate his innovative spirit and technical expertise. His patents continue to influence advancements in the field, showcasing the importance of his work in modern computing.

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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