1
Yukiya Ueda, Tsugune Saito, Shigetomo Tamai: System and method for user authentication. Computer Systems Engineering, Stephen M De Klerk, Blakely Sokoloff Taylor & Zafman, August 5, 2008: US07409705 (25 worldwide citation)

Disclosed is a user authentication system, which is designed to present a presentation pattern to a user subject to authentication, and apply a one-time-password derivation rule serving as a password of the user to certain pattern elements included in the presentation pattern at specific positions s ...


2
Yukiya Ueda, Tsugune Saito, Shigetomo Tamai: System, method and program for off-line user authentication. Computer Systems Engineering, Blakely Sokoloff Taylor & Zafman, May 17, 2011: US07945948 (9 worldwide citation)

Disclosed is an off-line user authentication system, which is designed to present a presentation pattern to a user subject to authentication, and apply a one-time-password derivation rule serving as a password to certain pattern elements included in the presentation pattern at specific positions so ...


3
Shigetomo Tamai, Toru Takano, Tsuyoshi Kobayashi: System, method and program for off-line two-factor user authentication. CSE, Blakely Sokoloff Taylor & Zafman, October 28, 2014: US08875264 (7 worldwide citation)

Provided is an off-line two-factor user authentication system. The off-line two-factor user authentication system is designed to use, as a password, a one-time-password derivation rule to be applied to certain pattern elements included in a presentation pattern at specific positions so as to create ...


4
Yukiya Ueda, Tsugune Saito, Shigetomo Tamai: System, method and program for off-line user authentication. Computer Systems Engineering, Blakely Sokoloff Taylor & Zafman, July 19, 2011: US07984491 (6 worldwide citation)

Disclosed is an off-line user authentication system, which is designed to present a presentation pattern to a user subject to authentication, and apply a one-time-password derivation rule serving as a password to certain pattern elements included in the presentation pattern at specific positions so ...


5
Shigetomo Tamai, Toru Takano, Shigeo Akutsu: Content presentation-type authentication system. Computer Systems Engineering, Brinks Hofer Gilson & Lione, June 26, 2012: US08209746 (3 worldwide citation)

It is intended to achieve a user authentication system capable of forcibly presenting a content to a user. Provided is a content presentation-type authentication system designed to allow a client to perform a content presentation-type user authentication in which user authentication is performed in ...


6
Yukiya Ueda, Tsugune Saito, Shigetomo Tamai: System and method for user authentication. Stephen M De Klerk, Blakely Sokoloff Taylor & Zafman, September 27, 2007: US20070226784-A1

Disclosed is a user authentication system, which is designed to present a presentation pattern to a user subject to authentication, and apply a one-time-password derivation rule serving as a password of the user to certain pattern elements included in the presentation pattern at specific positions s ...


7
Yukiya Ueda, Tsugune Saito, Shigetomo Tamai: System, method and program for off-line user authentication. Blakely Sokoloff Taylor & Zafman, October 4, 2007: US20070234063-A1

Disclosed is an off-line user authentication system, which is designed to present a presentation pattern to a user subject to authentication, and apply a one-time-password derivation rule serving as a password to certain pattern elements included in the presentation pattern at specific positions so ...


8
Shigetomo Tamai, Toru Takano, Shigeo Akutsu: Content presentation-type authentication system. August 18, 2011: US20110202981-A1

It is intended to achieve a user authentication system capable of forcibly presenting a content to a user. Provided is a content presentation-type authentication system designed to allow a client to perform a content presentation-type user authentication in which user authentication is performed in ...


9
Yukiya Ueda, Tsugune Saito, Shigetomo Tamai: System, method and program for off-line user authentication. Blakely Sokoloff Taylor & Zafman, February 18, 2010: US20100043063-A1

Disclosed is an off-line user authentication system, which is designed to present a presentation pattern to a user subject to authentication, and apply a one-time-password derivation rule serving as a password to certain pattern elements included in the presentation pattern at specific positions so ...