Patents by Inventor Tetsuhiko Ueda

Tetsuhiko Ueda 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).

  • Road surface friction measuring method and device therefor
    Patent number: 6427519
    Abstract: Provided is a road surface friction coefficient measuring method and device for measuring the friction coefficient of road surfaces such as roads and runways, and which can be used by being mounted on a general car. This device has a spindle 5 detachably connected to the wheel of a travelling wheel 3 of a car, a support arm 6 oscillatably connected to the spindle, and a measuring wheel supported rotatably by the support arm.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: August 6, 2002
    Assignee: National Aerospace Laboratory of Science & Technology Agency
    Inventors: Tetsuhiko Ueda, Tokuo Sotozaki, Takashi Kai
  • Road surface friction measuring method and device therefor
    Publication number: 20010006002
    Abstract: Provided is a road surface friction coefficient measuring method and device for measuring the friction coefficient of road surfaces such as roads and runways, and which can be used by being mounted on a general car. This device has a spindle 5 detachably connected to the wheel of a travelling wheel 3 of a car, a support arm 6 oscillatably connected to the spindle, and a measuring wheel supported rotatably by the support arm.
    Type: Application
    Filed: December 20, 2000
    Publication date: July 5, 2001
    Applicant: National Aerospace Laboratory of Science & Technology Agency
    Inventors: Tetsuhiko Ueda, Tokuo Sotozaki, Takashi Kai