Takao Yamashita

9 Patents

• US122447272025

  User Credential Control System and User Credential Control Method

  Nippon Telegraph And Telephone Corporation

  0 cites
• US122067942025

  User Information Management System, User Information Management Method, User Agent and Program

  Nippon Telegraph And Telephone Corporation

  0 cites
• US121556552024

  Owner Identity Confirmation System and Owner Identity Confirmation Method

  Nippon Telegraph And Telephone Corporation

  0 cites
• US121202472024

  Owner Identity Confirmation System, Certificate Authority Server and Owner Identity Confirmation Method

  Nippon Telegraph And Telephone Corporation

  0 cites
• US121202482024

  Owner Identity Confirmation System, Terminal and Owner Identity Confirmation Method

  Nippon Telegraph And Telephone Corporation

  0 cites
• US120220042024

  Terminal Registration System and Terminal Registration Method

  Nippon Telegraph And Telephone Corporation

  0 cites
• US119562382024

  Authorization System and Authorization Method

  Nippon Telegraph And Telephone Corporation

  0 cites
• US119170762024

  Terminal Registration System and Terminal Registration Method

  Nippon Telegraph And Telephone Corporation

  0 cites
• US117211482023

  Authorization System, Management Server and Authorization Method

  Nippon Telegraph And Telephone Corporation

  0 cites