% Expired Patents = 50.0

Forward Citations = 4

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2 inventors (with patents filed for the assignee):

Shinichi Kurihara (2 out of 20 patents)

Koji Nakashima (2 out of 5 patents)

2 patents: Sort by Forward Citations

1. 8566457 - Content delivery service providing apparatus and content delivery service terminal unit (2013-10-22),

2. 7599495 - Content delivery service providing apparatus and content delivery service terminal unit (2009-10-06),

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USPTO Data Jan 1 1976 - Oct 20 2026

2 Patents

#4,372 in Tokyo

#11,139 in Japan

Tokyo, Japan

Toshiba Communication Systems Corporation

Forward Citations = 4

2 inventors:

Shinichi Kurihara (2 out of 20 patents)

Koji Nakashima (2 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Toshiba Communication Systems Corporation. Retrieved from https://idiyas.com/company/toshiba-communication-systems

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

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]