Patents by Inventor Michi KARIATSUMARI

Michi KARIATSUMARI 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).

  • Timetable modification device and automatic train control system
    Patent number: 11803930
    Abstract: The present invention makes it possible to supply transportation capacity suitable for movement demand in numerous circumstances.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: October 31, 2023
    Assignees: Hitachi, Ltd., Hitachi Rail STS S.p.A.
    Inventors: Tsuyoshi Minakawa, Keiji Kimura, Tatsuhiro Satou, Michi Kariatsumari, Claudio Giorgianni
  • Timetable Creation Apparatus, Timetable Creation Method, and Automatic Train Control System
    Publication number: 20220188725
    Abstract: A timetable creation apparatus 100 for correcting a target timetable being a train timetable to be used to control a group of trains by using a predicted passenger demand to thereby create a new target timetable, includes: an objective function generation unit 115 that generates an objective function for an operation headway between trains included in the group of trains by using the predicted passenger demand; a constraint condition generation unit 117 that derives constraint conditions which an arrival time and a departure time of each of the trains at each of stations should satisfy for operation of the group of trains; and a candidate timetable creation unit 119 that creates a candidate timetable as an update candidate for a target timetable by using an arrival time and a departure time of each of the trains at each of the stations derived by optimizing the objective function under the constraint conditions.
    Type: Application
    Filed: February 21, 2020
    Publication date: June 16, 2022
    Inventors: Tsuyoshi MINAKAWA, Keiji KIMURA, Michi KARIATSUMARI, Masahito KOKUBO, Megumi YAMAGUCHI
  • Timetable Modification Device and Automatic Train Control System
    Publication number: 20200357091
    Abstract: The present invention makes it possible to supply transportation capacity suitable for movement demand in numerous circumstances.
    Type: Application
    Filed: October 4, 2018
    Publication date: November 12, 2020
    Inventors: Tsuyoshi MINAKAWA, Keiji KIMURA, Tatsuhiro SATOU, Michi KARIATSUMARI, Claudio GIORGIANNI