Patents by Inventor Tomoki ARAKAWA

Tomoki ARAKAWA 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).

  • Route calculation device, navigation device, route calculation method, navigation method, and communication system
    Patent number: 10234301
    Abstract: The present invention provides a route calculation device, a navigation device, a route calculation method, and a navigation device that can calculate a route that allows a user to arrive at a destination or a stop-off point within a determined time period. The route calculation device according to the present invention includes a communication available hours acquisition unit 11 that acquires communication available hours of a plurality of branch stations that establish communication with a mobile station, a reference time acquisition unit 12 that acquires a reference time, a road information acquisition unit 13 that acquires time information of a road section, and a route calculation unit 31 that calculates a first travel route that offers the shortest required time for stopping by the branch stations based on the communication available hours, the reference time, and the time information of a road section.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: March 19, 2019
    Assignee: NEC CORPORATION
    Inventor: Tomoki Arakawa
  • ROUTE CALCULATION DEVICE, NAVIGATION DEVICE, ROUTE CALCULATION METHOD, NAVIGATION METHOD, AND COMMUNICATION SYSTEM
    Publication number: 20170108345
    Abstract: The present invention provides a route calculation device, a navigation device, a route calculation method, and a navigation device that can calculate a route that allows a user to arrive at a destination or a stop-off point within a determined time period. The route calculation device according to the present invention includes a communication available hours acquisition unit 11 that acquires communication available hours of a plurality of branch stations that establish communication with a mobile station, a reference time acquisition unit 12 that acquires a reference time, a road information acquisition unit 13 that acquires time information of a road section, and a route calculation unit 31 that calculates a first travel route that offers the shortest required time for stopping by the branch stations based on the communication available hours, the reference time, and the time information of a road section.
    Type: Application
    Filed: January 5, 2015
    Publication date: April 20, 2017
    Applicant: NEC Corporation
    Inventor: Tomoki ARAKAWA