Patents by Inventor Masato Hachikawa

Masato Hachikawa 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).

  • Derailment protection apparatus
    Patent number: 7461599
    Abstract: The disclosed is a derailment protection apparatus that may comprise a wheel guiding member or a rail contact member having an inclined surface, a descending device to descend the wheel guiding member or the rail contact member, and wherein the inclined surface comes in contact with a rail, when the descending device operates. The derailment protection apparatus may return a wheel of a rolling stock to be deviated from a rail to a normal position, when the rolling stock with a bogie receives an abnormal vibration due to such as earthquake.
    Type: Grant
    Filed: December 7, 2005
    Date of Patent: December 9, 2008
    Inventor: Masato Hachikawa
  • Derailment protection apparatus
    Publication number: 20060124024
    Abstract: The disclosed is a derailment protection apparatus that may comprise a wheel guiding member or a rail contact member having an inclined surface, a descending device to descend the wheel guiding member or the rail contact member, and wherein the inclined surface comes in contact with a rail, when the descending device operates. The derailment protection apparatus may return a wheel of a rolling stock to be deviated from a rail to a normal position, when the rolling stock with a bogie receives an abnormal vibration due to such as earthquake.
    Type: Application
    Filed: December 7, 2005
    Publication date: June 15, 2006
    Inventor: Masato Hachikawa