Patents by Inventor Katsumi Motoyuki

Katsumi Motoyuki 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).

  • Linear encoder
    Patent number: 10209103
    Abstract: A linear encoder includes a scale disposed within a housing and a scanning unit that is displaceable in a measuring direction relative to the scale. The scanning unit includes a scanning head disposed inside of the housing opposite to the scale such that the scale is scannable by the scanning head, as well as a mount to which the scanning head is fastened, and a driving component, via which the mount is coupled to a mounting base disposed outside of the housing. A vibration damper suppresses vibrations transversely to the measuring direction. The vibration damper is disposed on the mount or on the scanning head, and includes a damping mass and an elastic element. The damping mass is fastened by the elastic element to an attachment surface of the mount or of the scanning head.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: February 19, 2019
    Assignee: DR. JOHANNES HEIDENHAIN GMBH
    Inventors: Daisuke Shimoda, Katsumi Motoyuki, Yoshio Watanabe
  • LINEAR ENCODER
    Publication number: 20170199060
    Abstract: A linear encoder includes a scale disposed within a housing and a scanning unit that is displaceable in a measuring direction relative to the scale. The scanning unit includes a scanning head disposed inside of the housing opposite to the scale such that the scale is scannable by the scanning head, as well as a mount to which the scanning head is fastened, and a driving component, via which the mount is coupled to a mounting base disposed outside of the housing. A vibration damper suppresses vibrations transversely to the measuring direction. The vibration damper is disposed on the mount or on the scanning head, and includes a damping mass and an elastic element. The damping mass is fastened by the elastic element to an attachment surface of the mount or of the scanning head.
    Type: Application
    Filed: January 3, 2017
    Publication date: July 13, 2017
    Inventors: Daisuke Shimoda, Katsumi Motoyuki, Yoshio Watanabe
  • Linear encoder and method of adjusting a gap between a sensor unit and a scale of the linear encoder
    Patent number: 9395215
    Abstract: A linear encoder includes a housing, a scale disposed within the housing and a sensor unit disposed within the housing facing the scale with a gap between the sensor unit and the scale. The sensor unit is configured to scan the scale and obtain position information. At least one adjustment hole for a gap adjustment is disposed in at least one of the housing and an end cover of the housing at a position corresponding to a position of the gap.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: July 19, 2016
    Assignee: DR. JOHANNES HEIDENHAIN GMBH
    Inventor: Katsumi Motoyuki
  • LINEAR ENCODER AND METHOD OF ADJUSTING A LINEAR ENCODER
    Publication number: 20140284464
    Abstract: A linear encoder includes a housing, a scale disposed within the housing and a sensor unit disposed within the housing facing the scale with a gap between the sensor unit and the scale. The sensor unit is configured to scan the scale and obtain position information. At least one adjustment hole for a gap adjustment is disposed in at least one of the housing and an end cover of the housing at a position corresponding to a position of the gap.
    Type: Application
    Filed: March 19, 2014
    Publication date: September 25, 2014
    Applicant: DR. JOHANNES HEIDENHAIN GmbH
    Inventor: Katsumi Motoyuki