Patents by Inventor Mitsuaki Homma

Mitsuaki Homma 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).

  • Motion guide device, table apparatus, and damping method for motion guide device
    Patent number: 8231274
    Abstract: A motion guide device that has a novel damping structure different from the conventional damping structure is provided. The present invention comprises a raceway member (1) having a rolling-element rolling part (1a); a moving member (2) having a loaded rolling-element rolling part (2a) facing the rolling-element rolling part (1a) and being allowed to make a linear or curved movement relatively to the raceway member (1); and a plurality of rolling elements (3) intervening between the rolling-element rolling part (1a) of the raceway member (1) and the loaded rolling-element rolling part (2a) of the moving part (2). A gap (16) between the raceway member (1) and the moving member (2) is filled with a layer of oil contacting the raceway member (1) and the moving member (2). Viscosity resistance of the oil is utilized to apply a braking force to the moving member (2) or the raceway member (1) in proportion to a speed.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: July 31, 2012
    Assignee: THK Co., Ltd.
    Inventors: Hidekazu Michioka, Masahiko Yoshino, Mitsuaki Homma, Satoru Nagai
  • MOTION GUIDE DEVICE, TABLE APPARATUS, AND DAMPING METHOD FOR MOTION GUIDE DEVICE
    Publication number: 20090161996
    Abstract: A motion guide device that has a novel damping structure different from the conventional damping structure is provided. The present invention comprises a raceway member (1) having a rolling-element rolling part (1a); a moving member (2) having a loaded rolling-element rolling part (2a) facing the rolling-element rolling part (1a) and being allowed to make a linear or curved movement relatively to the raceway member (1); and a plurality of rolling elements (3) intervening between the rolling-element rolling part (1a) of the raceway member (1) and the loaded rolling-element rolling part (2a) of the moving part (2). A gap (16) between the raceway member (1) and the moving member (2) is filled with a layer of oil contacting the raceway member (1) and the moving member (2). Viscosity resistance of the oil is utilized to apply a braking force to the moving member (2) or the raceway member (1) in proportion to a speed.
    Type: Application
    Filed: October 31, 2005
    Publication date: June 25, 2009
    Applicant: THK CO., LTD.
    Inventors: Hidekazu Michioka, Masahiko Yoshino, Mitsuaki Homma, Satoru Nagai