Patents by Inventor Masumi Taketomi

Masumi Taketomi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Blocking of spoofed E-mail
    Patent number: 8381262
    Abstract: Embodiments are directed towards detecting and reporting use by a domain of a message authentication mechanism, such as DomainKeys (DK), and/or DomainKeys Identified Mail (DKIM), and enabling subsequent blocking of messages based, in part, on its usage. When a message is received by an inbound message server, a message source is determined for the message. In one embodiment, the message source is a domain name associated with the sender of the message. Statistics are recorded about the message, including the message source, whether the message is suspect, includes a forged source identifier, employs DK/DKIM message authentication, and the like. The reports may then be sent to various message sources to enable them to determine the extent of use of DK/DKIM message authentication, and to selectively block, re-direct, or forward the messages based, in part, on the use of DK/DKIM message authentication mechanism.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: February 19, 2013
    Assignee: Yahoo! Inc.
    Inventors: Mark E. Risher, Mark Delany, Anirban Kundu, Miles A. Libbey, IV, Masumi Taketomi
  • Reporting on spoofed e-mail
    Patent number: 7950047
    Abstract: Embodiments are directed towards detecting and reporting use by a domain of a message authentication mechanism, such as DomainKeys (DK), and/or DomainKeys Identified Mail (DKIM), and enabling subsequent blocking of messages based, in part, on its usage. When a message is received by an inbound message server, a message source is determined for the message. In one embodiment, the message source is a domain name associated with the sender of the message. Statistics are recorded about the message, including the message source, whether the message is suspect, includes a forged source identifier, employs DK/DKIM message authentication, and the like. The reports may ten be sent to various message sources to enable them to determine the extent of use of DK/DKIM message authentication, and to selectively block, re-direct, or forward the messages based, in part, on the use of DK/DKIM message authentication mechanism.
    Type: Grant
    Filed: February 22, 2008
    Date of Patent: May 24, 2011
    Assignee: Yahoo! Inc.
    Inventors: Mark E. Risher, Mark Delany, Anirban Kundu, Miles A. Libbey, IV, Masumi Taketomi
  • REPORTING ON SPOOFED E-MAIL
    Publication number: 20090216842
    Abstract: Embodiments are directed towards detecting and reporting use by a domain of a message authentication mechanism, such as DomainKeys (DK), and/or DomainKeys Identified Mail (DKIM), and enabling subsequent blocking of messages based, in part, on its usage. When a message is received by an inbound message server, a message source is determined for the message. In one embodiment, the message source is a domain name associated with the sender of the message. Statistics are recorded about the message, including the message source, whether the message is suspect, includes a forged source identifier, employs DK/DKIM message authentication, and the like. The reports may ten be sent to various message sources to enable them to determine the extent of use of DK/DKIM message authentication, and to selectively block, re-direct, or forward the messages based, in part, on the use of DK/DKIM message authentication mechanism.
    Type: Application
    Filed: February 22, 2008
    Publication date: August 27, 2009
    Applicant: Yahoo! Inc.
    Inventors: Mark E. Risher, Mark Delany, Anirban Kundu, Miles A. Libbey, IV, Masumi Taketomi
  • BLOCKING OF SPOOFED E-MAIL
    Publication number: 20090210501
    Abstract: Embodiments are directed towards detecting and reporting use by a domain of a message authentication mechanism, such as DomainKeys (DK), and/or DomainKeys Identified Mail (DKIM), and enabling subsequent blocking of messages based, in part, on its usage. When a message is received by an inbound message server, a message source is determined for the message. In one embodiment, the message source is a domain name associated with the sender of the message. Statistics are recorded about the message, including the message source, whether the message is suspect, includes a forged source identifier, employs DK/DKIM message authentication, and the like. The reports may then be sent to various message sources to enable them to determine the extent of use of DK/DKIM message authentication, and to selectively block, re-direct, or forward the messages based, in part, on the use of DK/DKIM message authentication mechanism.
    Type: Application
    Filed: February 20, 2008
    Publication date: August 20, 2009
    Applicant: Yahoo! Inc.
    Inventors: Mark E. Risher, Mark Delany, Anirban Kundu, Miles A. Libbey, IV, Masumi Taketomi