Patents by Inventor Kenji Doishita

Kenji Doishita 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: 9704304
    Abstract: A management system for a mining machine on which tires are mounted and which travels in a mine by operation performed by a driver includes: a determination unit configured to determine whether or not a damaging operation damaging the tires has been carried out; a data acquisition unit configured to acquire damaging operation data indicating carrying out of the damaging operation, and one or both of driver identification data indicating a driver who has carried out the damaging operation and position data indicating a position of the mining machine on which the damaging operation has been carried out; and a data output unit configured to output association data containing the damaging operation data associated with one or both of the driver identification data and the position data.
    Type: Grant
    Filed: November 27, 2014
    Date of Patent: July 11, 2017
    Assignee: Komatsu Ltd.
    Inventors: Hisashi Asada, Kenji Doishita, Dai Tsubone, Tetsuya Akiyama, Ryomei Kurokawa
  • Patent number: 9697654
    Abstract: A system for managing a mining machine is included in a mining machine that travels in a mine. The system includes: a positional information detecting unit configured to acquire positional information indicating a position of the mining machine; and a traveling path calculating unit configured to obtain, from each of a plurality of the mining machines, positional information about an actual traveling path on which each of the mining machines actually has traveled, and generate a reference traveling path in the mine with the obtained positional information.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: July 4, 2017
    Assignee: Komatsu Ltd.
    Inventors: Hisashi Asada, Kenji Doishita, Dai Tsubone, Tetsuya Akiyama, Ryomei Kurokawa
  • Publication number: 20160300405
    Abstract: A system for managing a mining machine is included in a mining machine that travels in a mine. The system includes: a positional information detecting unit configured to acquire positional information indicating a position of the mining machine; and a traveling path calculating unit configured to obtain, from each of a plurality of the mining machines, positional information about an actual traveling path on which each of the mining machines actually has traveled, and generate a reference traveling path in the mine with the obtained positional information.
    Type: Application
    Filed: October 30, 2014
    Publication date: October 13, 2016
    Inventors: Hisashi Asada, Kenji Doishita, Dai Tsubone, Tetsuya Akiyama, Ryomei Kurokawa
  • Publication number: 20160155277
    Abstract: A management system for a mining machine on which tires are mounted and which travels in a mine by operation performed by a driver includes: a determination unit configured to determine whether or not a damaging operation damaging the tires has been carried out; a data acquisition unit configured to acquire damaging operation data indicating carrying out of the damaging operation, and one or both of driver identification data indicating a driver who has carried out the damaging operation and position data indicating a position of the mining machine on which the damaging operation has been carried out; and a data output unit configured to output association data containing the damaging operation data associated with one or both of the driver identification data and the position data.
    Type: Application
    Filed: November 27, 2014
    Publication date: June 2, 2016
    Applicant: KOMATSU LTD.
    Inventors: Hisashi Asada, Kenji Doishita, Dai Tsubone, Tetsuya Akiyama, Ryomei Kurokawa