Patents by Inventor Masatsugu Ohtsuka

Masatsugu Ohtsuka 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).

  • Electronic mail delivery system having a spool function
    Patent number: 11025572
    Abstract: A computer-implemented method includes receiving, by a first mail transfer agent having a first spool, an electronic mail. The computer-implemented method further includes issuing, by the first mail transfer agent, a first unique identifier to be associated with the electronic mail. The computer-implemented method further includes holding the electronic mail in the first spool for a first predetermined period of time. The computer-implemented method further includes transferring the electronic mail from the first spool to a second mail transfer agent having a second spool. The computer-implemented method further includes issuing, by the second mail transfer agent, a second unique identifier to be associated with the electronic mail. The computer-implemented method further includes holding the electronic mail in the second spool for a second predetermined period of time.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: June 1, 2021
    Assignee: International Business Machines Corporation
    Inventors: Kentaro Kuramochi, Shigeyuki Matsumoto, Masatsugu Ohtsuka, Ichiro Takiguchi
  • ELECTRONIC MAIL DELIVERY SYSTEM HAVING A SPOOL FUNCTION
    Publication number: 20180048602
    Abstract: A computer-implemented method includes receiving, by a first mail transfer agent having a first spool, an electronic mail. The computer-implemented method further includes issuing, by the first mail transfer agent, a first unique identifier to be associated with the electronic mail. The computer-implemented method further includes holding the electronic mail in the first spool for a first predetermined period of time. The computer-implemented method further includes transferring the electronic mail from the first spool to a second mail transfer agent having a second spool. The computer-implemented method further includes issuing, by the second mail transfer agent, a second unique identifier to be associated with the electronic mail. The computer-implemented method further includes holding the electronic mail in the second spool for a second predetermined period of time.
    Type: Application
    Filed: August 10, 2016
    Publication date: February 15, 2018
    Inventors: Kentaro Kuramochi, Shigeyuki Matsumoto, Masatsugu Ohtsuka, Ichiro Takiguchi