Patents by Inventor Norikatsu Nishizawa

Norikatsu Nishizawa 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).

  • Patent number: 10409847
    Abstract: A mail server identifies first keyword set including a keyword that is not included in a second keyword set, the key word being a keyword that appear in mail data with a frequency higher than a predetermined frequency, the mail data being extracted based on the second keyword set including a keyword used in extraction conditions of the mail data. Then, the mail server adds the first keyword set to the extraction conditions of the mail data.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: September 10, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Ryu Shibata, Tomotsugu Mochizuki, Norikatsu Nishizawa, Satoshi Kasai
  • Patent number: 10210248
    Abstract: A mail server displays a list of mail addresses of the sources of mails matching with an extraction condition for inappropriate mails, the list being classified into levels which are divided according to the transmission status of mails matching with the extraction condition for each mail address. Then, in response to the selection of one of the mail addresses from the displayed list, the mail server displays the transition of the transmission status of the mails which match with the extraction condition and have the selected mail address.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: February 19, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Ryu Shibata, Tomotsugu Mochizuki, Norikatsu Nishizawa, Satoshi Kasai
  • Publication number: 20170161285
    Abstract: A mail server displays a list of mail addresses of the sources of mails matching with an extraction condition for inappropriate mails, the list being classified into levels which are divided according to the transmission status of mails matching with the extraction condition for each mail address. Then, in response to the selection of one of the mail addresses from the displayed list, the mail server displays the transition of the transmission status of the mails which match with the extraction condition and have the selected mail address.
    Type: Application
    Filed: November 8, 2016
    Publication date: June 8, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Ryu Shibata, Tomotsugu Mochizuki, Norikatsu Nishizawa, Satoshi Kasai
  • Publication number: 20170161369
    Abstract: A mail server identifies first keyword set including a keyword that is not included in a second keyword set, the key word being a keyword that appear in mail data with a frequency higher than a predetermined frequency, the mail data being extracted based on the second keyword set including a keyword used in extraction conditions of the mail data. Then, the mail server adds the first keyword set to the extraction conditions of the mail data.
    Type: Application
    Filed: November 8, 2016
    Publication date: June 8, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Ryu Shibata, Tomotsugu Mochizuki, Norikatsu Nishizawa, Satoshi Kasai