Patents by Inventor Naoki Sakuraoka

Naoki Sakuraoka 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).

  • Anti-rolling apparatus
    Patent number: 6019056
    Abstract: An anti-rolling apparatus according to the present invention includes rail members which are formed in straight form and disposed perpendicular to a rolling axis of an object whose rolling is to be reduced, a movable weight capable of reciprocating along the rail members, and two springs for generating a stability force for the movable weight, wherein the two springs are elongated or contracted alternately when the movable weight is reciprocated.
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: February 1, 2000
    Assignee: Tokimec Inc.
    Inventors: Toru Maeda, Takeshi Hojo, Michio Fukano, Naoki Sakuraoka, Isao Masuzawa