Patents by Inventor Yasuaki Okuya

Yasuaki Okuya 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).

  • Crushing-breaking apparatus
    Patent number: 5791573
    Abstract: A crushing-breaking apparatus includes a frame, a fixed cutlery device and a rocking cutlery device. Both cutlery devices have many cutleries which are disposed at locations offset relative to the cutleries of the other cutlery device. And the rocking cutlery device is rocked pivotally around the lower pivot by an oil pressure cylinder as the fulcrum of its pivot. Useless casting products are crushed and broken by both cutlery devices.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: August 11, 1998
    Inventor: Yasuaki Okuya