Yokohama, Japan

Hisayoshi Satoh

This inventor holds 2 USPTO granted patents and 1 EPO patent. Top assignee: Hitachi, Ltd.. Active years: 2007-2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisayoshi Satoh. Retrieved from https://idiyas.com/inventor/hisayoshi-satoh

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

Calculating rank


Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 7(Granted Patents)


Company Filing History:


Years Active: 2007-2010

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2 patents (USPTO):Explore Patents

Title: Hisayoshi Satoh: Innovator in Public Key Encryption

Introduction

Hisayoshi Satoh is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of cryptography, particularly in public key encryption methods. With a total of 2 patents, his work focuses on enhancing security against chosen-ciphertext attacks.

Latest Patents

His latest patents include a method of public key encryption and a cipher communication that are both secure against chosen-ciphertext attacks. The public-key encryption method utilizes a sender-side apparatus to create ciphertext from plaintext. The process involves a published trapdoor-equipped unidirectional function and random functions, ensuring secure communication. The receiver then performs decryption using the secret key, following steps that are inverse to the encryption process.

Career Highlights

Hisayoshi Satoh is currently employed at Hitachi, Ltd., where he continues to innovate in the field of cryptography. His work has been instrumental in developing secure communication methods that are essential in today's digital landscape.

Collaborations

He has collaborated with notable coworkers, including Mototsugu Nishioka and Yoichi Seto, contributing to advancements in their shared field of expertise.

Conclusion

Hisayoshi Satoh's contributions to public key encryption highlight his role as a key innovator in cryptography. His patents reflect a commitment to enhancing security in digital communications.

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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