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For the Inventor, By the Inventor

Saitama, Japan

Masayoshi Ohashi

This inventor holds 6 USPTO granted patents. Top assignee: Kokusai Denshin Denwa Co., Ltd.. Active years: 1991-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masayoshi Ohashi. Retrieved from https://idiyas.com/inventor/masayoshi-ohashi

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

USPTO Granted Patents = 6

% Patents Active = 100.0

Average Co-Inventor Count = 3.1

ph-index = 5

Forward Citations = 324(Granted Patents)


Company Filing History:

goldMedal6 out of 226 
 
Kokusai Denshin Denwa Co., Ltd.
 patents

Years Active: 1991-1999

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6 patents (USPTO):Explore Patents
1. 6002931 - Interworking apparatus for roaming among different mobile networks (1999-12-14),
2. 5889861 - Identity confidentiality method in radio communication system (1999-03-30),
3. 5761309 - Authentication system (1998-06-02),
4. 5596641 - Authentication method for mobile communications (1997-01-21),
5. 5559803 - Communication system using a bidirectional tree structure network (1996-09-24),
6. 4998253 - Syndrome sequential decoder (1991-03-05),

Title: Masayoshi Ohashi: Innovator in Mobile Communication Technology

Introduction

Masayoshi Ohashi is a prominent inventor based in Saitama, Japan. He has made significant contributions to the field of mobile communication technology, holding a total of 6 patents. His work focuses on enhancing the efficiency and security of mobile networks.

Latest Patents

Ohashi's latest patents include an "Interworking apparatus for roaming among different mobile networks." This invention addresses the challenges of roaming among various mobile networks that utilize different inter-network signaling protocols. The apparatus connects to multiple mobile networks and maintains a database for holding network identity information, which is crucial for tracking mobile users.

Another notable patent is the "Identity confidentiality method in radio communication system." This method involves a radio communication system with a base station and multiple mobile stations. The base station utilizes a public key, while each mobile station employs public-key cryptography to ensure the confidentiality of their identities. The method generates a time-varying public key that is broadcasted to all mobile stations, allowing them to encrypt their identities before communication.

Career Highlights

Masayoshi Ohashi has built a successful career at Kokusai Denshin Denwa Co., Ltd. His innovative work has positioned him as a key figure in the advancement of mobile communication technologies. His patents reflect his commitment to improving user experience and security in mobile networks.

Collaborations

Ohashi has collaborated with notable colleagues, including Toshinori Suzuki and Seiichiro Sakai. These partnerships have contributed to the development of groundbreaking technologies in the mobile communication sector.

Conclusion

Masayoshi Ohashi's contributions to mobile communication technology through his patents and collaborations highlight his role as an influential inventor. His work continues to shape the future of mobile networks, ensuring enhanced connectivity and security for users.

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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