Patents by Inventor Hirokazu KODERA

Hirokazu KODERA 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).

  • Phishing site detection device, phishing site detection method and phishing site detection program
    Patent number: 11838322
    Abstract: A phishing site detection device extracts, from a phishing kit, a condition of access sources with which the access to a phishing site is blocked. Then, the phishing site detection device accesses a phishing site constructed by the phishing kit using one or more extracted conditions of access sources, and stores an access result for each condition of access sources in an access result storage module. Thereafter, the phishing site detection device sets a condition of access sources with which the access to the phishing site constructed by the phishing kit is blocked, accesses a website to be detected, and determines whether the website is a phishing site on the basis of the access result.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: December 5, 2023
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Hirokazu Kodera, Toshiki Shibahara, Daiki Chiba, Yuta Takata, Kazufumi Aoki
  • LEVEL ESTIMATION DEVICE, LEVEL ESTIMATION METHOD, AND LEVEL ESTIMATION PROGRAM
    Publication number: 20230103084
    Abstract: A level estimation apparatus includes processing circuitry configured to receive event logs of events detected by a device or software, and calculate degrees of similarity among the events indicated by the event logs with use of the event logs, and estimate a level of a predetermined event based on the calculated degrees of similarity among the events and a level of at least one of the events, wherein in the calculation of the degrees of similarity among the events, when a degree of similarity between events detected by different devices or items of software is calculated, a degree of similarity to a common event is used, the common event being an event that has been detected mutually by the different devices or items of software.
    Type: Application
    Filed: October 9, 2019
    Publication date: March 30, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Toshiki SHIBAHARA, Hirokazu KODERA, Daiki CHIBA, Mitsuaki AKIYAMA, Kunio HATO
  • PHISHING SITE DETECTION DEVICE, PHISHING SITE DETECTION METHOD AND PHISHING SITE DETECTION PROGRAM
    Publication number: 20220021703
    Abstract: A phishing site detection device extracts, from a phishing kit, a condition of access sources with which the access to a phishing site is blocked. Then, the phishing site detection device accesses a phishing site constructed by the phishing kit using one or more extracted conditions of access sources, and stores an access result for each condition of access sources in an access result storage module. Thereafter, the phishing site detection device sets a condition of access sources with which the access to the phishing site constructed by the phishing kit is blocked, accesses a website to be detected, and determines whether the website is a phishing site on the basis of the access result.
    Type: Application
    Filed: October 10, 2019
    Publication date: January 20, 2022
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Hirokazu KODERA, Toshiki SHIBAHARA, Daiki CHIBA, Yuta TAKATA, Kazufumi AOKI