Patents by Inventor Soichi Kobayasi

Soichi Kobayasi 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).

  • Paved asphalt stripping and digging bucket apparatus
    Patent number: 4635386
    Abstract: A paved asphalt stripping and digging bucket apparatus is disclosed which is capable of effectively carrying out the stripping-off and digging of a paved asphalt. In the apparatus, a bucket connected to an arm and a hydraulic cylinder of a tractor shovel has a bottom surface formed into a shape having a radius when it is viewed sideways, to thereby facilitate the pivotal penetration of pawls of the bucket between the asphalt and a sublayer and allow the pawls to act as a lever on which the fulcrum is on the sublayer.
    Type: Grant
    Filed: September 10, 1985
    Date of Patent: January 13, 1987
    Assignee: Kabushiki Kaisha SK
    Inventor: Soichi Kobayasi