Hitachi, Japan

Yoichi Hayashi

This inventor holds 2 USPTO granted patents. Top assignees: Hitachi Engineering Co., Ltd., Hitachi Engineering Ltd. Active years: 1993-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoichi Hayashi. Retrieved from https://idiyas.com/inventor/yoichi-hayashi-65h39b3x

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 = 1.0

ph-index = 2

Forward Citations = 42(Granted Patents)


Company Filing History:


Years Active: 1993-1994

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2 patents (USPTO):Explore Patents

Title: Innovations of Yoichi Hayashi

Introduction

Yoichi Hayashi is a notable inventor based in Hitachi, Japan. He has made significant contributions to the field of fuzzy logic and expert systems. With a total of 2 patents, his work has advanced the understanding and application of reasoning systems in technology.

Latest Patents

Hayashi's latest patents include a "Fuzzy backward reasoning system and expert system utilizing the same." This invention features a fuzzy backward reasoning system that incorporates a memory section for storing a causality table with n.times.m elements. It includes a first generating section that reads the causality table and generates basic and auxiliary matrix tables, as well as an input effect matrix table. Additionally, a second generating section creates a minimum matrix table, while a third generating section generates a check matrix table from the basic and auxiliary tables. The invention also has a modifying section that selectively resets flags in the checking matrix table based on the basic and minimum matrix tables. Finally, a fourth generating section produces a cause matrix table, where the interval data represents the certainty of corresponding causes.

Another patent by Hayashi is also titled "Fuzzy backward reasoning system and expert system utilizing the same." This system is designed for controlling a target apparatus and includes a supplying section, a reasoning section, and a control section. The supplying section provides n states of the target apparatus, while the reasoning section performs fuzzy backward reasoning to generate certainties of m causes. The control section then manages the target apparatus based on these certainties.

Career Highlights

Throughout his career, Yoichi Hayashi has worked with prominent companies such as Hitachi Engineering Co., Ltd. and Hitachi Engineering Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in the field of fuzzy logic and control systems.

Collaborations

Due to space constraints, the collaborations section has been omitted.

Conclusion

Yoichi Hayashi's contributions to fuzzy logic and expert systems have paved the way for advancements in technology. His innovative patents reflect his expertise and commitment to enhancing reasoning systems.

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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