Patents by Inventor Hidehiko Mashimo

Hidehiko Mashimo 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).

  • Patent number: 8019448
    Abstract: The vibrations of a second table supported on a first table that is movable in one horizontal direction can be controlled. A stage device includes an XY axis table movable in the X-direction, a Z-axis table supported by a support portion on the XY axis table, a pair of scales that are arranged apart from each other in the X-direction and detect the Z-direction velocity on the Z-axis table, a pair of motors that are arranged apart from each other in the X-direction and drive the Z-axis table in a vertical direction on the Z-axis-table, and a controller controls the drives of the motors based on the Z-direction velocity detected, in which the behavior of pitching vibrations in the Z-axis table is determined by detecting the Z-direction velocity with the scales, and the motors are driven and then the Z-axis table is rotated in a pitching direction so that the pitching vibrations are cancelled.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: September 13, 2011
    Assignee: Sumitomo Heavy Industries, Ltd.
    Inventors: Ryuta Nakajima, Hidehiko Mashimo
  • Patent number: 7743998
    Abstract: A stage device has guide members (2, 3) for guiding each of two moving bodies (4, 5) in one axis direction on a level block (1) and has a beam (6) laid across the two moving bodies (4, 5) so as to be perpendicular to the guide members (2, 3) and moving together with the moving bodies (4, 5). The two moving bodies (4, 5) are individually moved to rotate the beam (6) relative to a yaw rotation axis perpendicular to the one axis direction.
    Type: Grant
    Filed: October 15, 2004
    Date of Patent: June 29, 2010
    Assignee: Sumitomo Heavy Industries, Ltd.
    Inventors: Taturoh Katoh, Kazuharu Uchimi, Hiroshi Murayama, Hidehiko Mashimo
  • Publication number: 20090245980
    Abstract: The vibrations of a second table supported on a first table that is movable in one horizontal direction can be controlled. A stage device includes an XY axis table movable in the X-direction, a Z-axis table supported by a support portion on the XY axis table, a pair of scales that are arranged apart from each other in the X-direction and detect the Z-direction velocity on the Z-axis table, a pair of motors that are arranged apart from each other in the X-direction and drive the Z-axis table in a vertical direction on the Z-axis-table, and a controller controls the drives of the motors based on the Z-direction velocity detected, in which the behavior of pitching vibrations in the Z-axis table is determined by detecting the Z-direction velocity with the scales, and the motors are driven and then the Z-axis table is rotated in a pitching direction so that the pitching vibrations are cancelled.
    Type: Application
    Filed: September 12, 2008
    Publication date: October 1, 2009
    Inventors: Ryuta Nakajima, Hidehiko Mashimo
  • Publication number: 20070158401
    Abstract: A stage device has guide members (2, 3) for guiding each of two moving bodies (4, 5) in one axis direction on a level block (1) and has a beam (6) laid across the two moving bodies (4, 5) so as to be perpendicular to the guide members (2, 3) and moving together with the moving bodies (4, 5). The two moving bodies (4, 5) are individually moved to rotate the beam (6) relative to a yaw rotation axis perpendicular to the one axis direction.
    Type: Application
    Filed: October 15, 2004
    Publication date: July 12, 2007
    Applicant: SUMITOMO HEAVY INDUSTRIES, LTD.
    Inventors: Taturoh Katoh, Kazuharu Uchimi, Hiroshi Murayama, Hidehiko Mashimo