logo

For the Inventor, By the Inventor

Tokyo, Japan

Sanami Nakagawa

This inventor holds 4 USPTO granted patents and 6 published patent applications. Top assignee: Nec Corporation. Active years: 2024-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sanami Nakagawa. Retrieved from https://idiyas.com/inventor/sanami-nakagawa

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

USPTO Granted Patents = 4 

% Patents Active = 50.0

Average Co-Inventor Count = 3.8

ph-index = 1


Company Filing History:

goldMedal4 out of 36,684 
 
Nec Corporation
 patents

Years Active: 2024-2026

Loading Chart...
4 patents (USPTO):Explore Patents
1. 12726328 - Homomorphic cyclic operation system, homomorphic cyclic operation apparatus, homomorphic cyclic operation method, and homomorphic cyclic operation program (2026-09-01),
2. 12598057 - Similarity calculation system, similarity calculation apparatus, similarity calculation method, and similarity calculation program (2026-04-07),
3. 12489619 - Terminal apparatus, encrypted information transformation apparatus, collation system, input information encryption method, encrypted information transformation method, collation method, input information encryption program, and encrypted information transformation program (2025-12-02),
4. 12124605 - Management apparatus, management method, verification apparatus, computer program and recording medium (2024-10-22),

Title: Sanami Nakagawa: Innovator in Information Encryption

Introduction

Sanami Nakagawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of information encryption, holding 4 patents that focus on enhancing data security and collation accuracy. His work is vital in an era where information leakage poses a substantial risk to organizations and individuals alike.

Latest Patents

Nakagawa's latest patents include a terminal apparatus designed for encrypting input information intended for collation. This apparatus performs transformation parameter generation processing, which creates a transformation parameter based on stored and distinct parameters. The encrypted input information generated by this apparatus aims to suppress degradation in collation accuracy while minimizing the risk of information leakage. Additionally, he has developed a management apparatus that operates under a single entity, which includes a storage unit for policy information, an acquisition unit for referring to log information, and a comparison unit for validating policy information through hash values.

Career Highlights

Sanami Nakagawa is currently employed at NEC Corporation, a leading technology company known for its innovative solutions in various sectors. His work at NEC has allowed him to focus on developing advanced encryption technologies that address contemporary challenges in data security.

Collaborations

Some of Nakagawa's notable coworkers include Keisuke Kajigaya and Takao Takenouchi. Their collaboration has contributed to the advancement of encryption technologies within their organization.

Conclusion

Sanami Nakagawa's contributions to the field of information encryption are noteworthy, as they enhance the security and accuracy of data collation processes. His innovative patents reflect a commitment to addressing the critical challenges of information security in today's digital landscape.

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]
Loading…