Patents by Inventor Kazutoshi Hidaka

Kazutoshi Hidaka 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: 7081744
    Abstract: The apparatus can continuously determine the location at which a cable is buried. Location data of a measurement standard position is acquired by RTK-GPS. The azimuth of the moving direction of the apparatus is calculated using the location data. Electromagnetic waves from a metallic wire are received by two electromagnetic signal receiving sections whose locations in the horizontal plane are different from each other, and distances from the measurement standard position to a cable in a measurement base line direction and in the vertical downward direction are calculated using the received electromagnetic signals. The depth of the cable is calculated using the distance in the vertical downward direction. The plane location data of the cable is calculated using the azimuth of the moving direction, the location data of the measurement standard position, and the distance in the measurement base line direction.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: July 25, 2006
    Assignee: NTT Infrastructure Network Corporation
    Inventors: Shinsuke Nakanishi, Kazuhiro Otsuki, Ken Nishiwaki, Kazutoshi Hidaka
  • Publication number: 20050062475
    Abstract: An apparatus is provided that can continuously determine the location at which a cable is buried. The location data of a measurement standard position is acquired by RTK-GPS. The azimuth of the moving direction of the cable location continuously determining apparatus is calculated using the location data. Electromagnetic waves from a metallic wire are received by two electromagnetic signal receiving sections whose locations in the horizontal plane are different from each other, and distances from the measurement standard position to a cable in a measurement base line direction and in the vertical downward direction are calculated using the received electromagnetic signals. The depth of the cable is calculated using the distance in the vertical downward direction. The plane location data of the cable is calculated using the azimuth of the moving direction, the location data of the measurement standard position, and the distance in the measurement base line direction.
    Type: Application
    Filed: February 17, 2004
    Publication date: March 24, 2005
    Inventors: Shinsuke Nakanishi, Kazuhiro Otsuki, Ken Nishiwaki, Kazutoshi Hidaka
  • Patent number: 6748340
    Abstract: There is provided a cable position information management system, management method and program which efficiently perform cable position measurement, and manage the measurement information. Furthermore, there is provided a facility information management system and a facility information management program which allow a user to perform determinations relating to facility management immediately and accurately by the sharing and integration of individually managed facility information. In addition, there is provided a cable core wire management system, a cable core wire management method and a cable core wire management program which realize an improvement in efficiency and reliability of construction work performed on networks such as optical fiber networks.
    Type: Grant
    Filed: March 4, 2003
    Date of Patent: June 8, 2004
    Assignee: NTT Infrastructure Network Corporation
    Inventors: Kazuhiro Otsuki, Ken Nishiwaki, Jiro Mori, Kazutoshi Hidaka, Noriyuki Kawagoe
  • Publication number: 20040059539
    Abstract: There is provided a cable position information management system, management method and program which efficiently perform cable position measurement, and manage the measurement information. Furthermore, there is provided a facility information management system and a facility information management program which allow a user to perform determinations relating to facility management immediately and accurately by the sharing and integration of individually managed facility information. In addition, there is provided a cable core wire management system, a cable core wire management method and a cable core wire management program which realize an improvement in efficiency and reliability of construction work performed on networks such as optical fiber networks.
    Type: Application
    Filed: March 4, 2003
    Publication date: March 25, 2004
    Inventors: Kazuhiro Otsuki, Ken Nishiwaki, Jiro Mori, Kazutoshi Hidaka, Noriyuki Kawagoe