Patents by Inventor Norio Awamura

Norio Awamura 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: 5894901
    Abstract: Magnets 1 are pressed against a vehicle body (side plates, a rotary shaft, a supporting beam 12 of springs 10, etc.), which travels on an endless track comprising the magnets 1, a chain 5, etc., by auxiliary wheels 9 having a plurality of springs 10 which are different from a chain driving wheels 6a of the endless track, and also suspension function is given between each magnet 1 and the chain 5 by springs 4. When the idler wheels 8a with gears are pressed against the vehicle body by springs 8c, slacks are generated in the endless track in front of the traveling direction, thereby improving the traveling performance for traveling on the traveling surface having an uneven spot or curvatures. Further, a plurality of endless tracks each capable of traveling independently are combined to constitute the traveling device, which form the endless track magnetic traveling device fit for various uses.
    Type: Grant
    Filed: October 2, 1996
    Date of Patent: April 20, 1999
    Assignee: Babcock-Hitachi Kabushiki Kaisha
    Inventors: Norio Awamura, Youji Takasu, Shigeto Uchida
  • Patent number: 5681995
    Abstract: An ultrasonic flaw detecting apparatus for efficiently detecting a flaw existing in a deep portion of a multi-layer structure includes a first sensor arranged so as to transmit an ultrasonic wave into a different property layer surrounded by a medium having a different acoustic impedance in the multi-layer structure, a function generator for generating a pulse-shaped sine wave, a power amplifier for amplifying and supplying the pulse-shaped sine wave to the first sensor, a second sensor arranged so as to receive a boundary echo from the different property layer, a first amplifier for amplifying the boundary echo received by the second sensor, an intensity detector for judging the intensity of an amplified signal of the boundary echo, a third sensor arranged so as to receive an echo from a flaw inside a layer in a deep portion of the different property layer, a second amplifier for amplifying the flaw echo received by the third sensor, a recorder for recording the amplified flaw echo signal, and a control unit
    Type: Grant
    Filed: March 12, 1996
    Date of Patent: October 28, 1997
    Assignees: Hitachi, Ltd., Babcock-Hitachi Kabushiki Kaisha
    Inventors: Takehiro Ooura, Kazunori Koga, Fuminobu Takahashi, Norio Awamura