Patents by Inventor Johan Gosse Lemmens

Johan Gosse Lemmens 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).

  • Method and apparatus for providing depth control or z-actuation
    Patent number: 7294102
    Abstract: A position control apparatus for controlling position along an axis, comprising: an extensible member that can be extended and contracted along said axis, comprising shape memory alloy locatable to expand and contract along said axis, heating means for controlling said temperature of said shape memory alloy, and a feedback mechanism for controlling said heating means and responsive to variations in said position, wherein said position is controllable by means of said heating means and can be stabilized by means of said feedback mechanism.
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: November 13, 2007
    Assignees: PENTAX Corporation, Optiscan PTY Ltd.
    Inventors: Bradley Charles Jones, Christopher Gerard Byrne, Johan Gosse Lemmens, Libin Ni
  • Method and apparatus for providing depth control or z-actuation
    Publication number: 20040220453
    Abstract: A position control apparatus for controlling position along an axis, comprising: an extensible member that can be extended and contracted along said axis, comprising shape memory alloy locatable to expand and contract along said axis, heating means for controlling said temperature of said shape memory alloy, and a feedback mechanism for controlling said heating means and responsive to variations in said position, wherein said position is controllable by means of said heating means and can be stabilized by means of said feedback mechanism.
    Type: Application
    Filed: April 13, 2004
    Publication date: November 4, 2004
    Applicants: PENTAX Corporation, OPTISCAN PTY LTD.
    Inventors: Bradley Charles Jones, Christopher Gerard Byrne, Johan Gosse Lemmens, Libin Ni