Patents by Inventor Atsuhisa Takegoshi

Atsuhisa Takegoshi 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).

  • Apparatus for detecting defects in a moving steel strip with a magnetizing yoke and a sensor placed on opposite sides of the strip
    Patent number: 5089776
    Abstract: A magnetic defect detector having a pair of rotatable cylinders made of nonmagnetic material which pinch a running steel strip therebetween, two pairs of bearings being engaged with the end parts of the pair of cylinders. A pair of stationary shafts are respectively housed in the cylinders, the end parts of which are engaged with the bearings. A yoke is housed in one of the cylinders, the free ends of which are placed near to the pinched strip, and a magnetizing coil surrounds the yoke. At least one sensor is housed in the other of the cylinders, and it is placed near to the pinched strip.
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: February 18, 1992
    Assignee: NKK Corporation
    Inventors: Takato Furukawa, Kenichi Iwanaga, Atsuhisa Takegoshi