Patents by Inventor Orest Ohar

Orest Ohar 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: 8121155
    Abstract: Fiber lasers and methods for constructing and using fiber lasers for micro-/nano-machining with output beams including stacked pulses and combinations of continuous wave, pseudo-continuous wave and pulse sequence components.
    Type: Grant
    Filed: July 27, 2009
    Date of Patent: February 21, 2012
    Assignee: Hitachi Via Mechanics, Ltd.
    Inventors: Todd E. Lizotte, Orest Ohar
  • Patent number: 7927525
    Abstract: A process of manufacturing micro or nanostructure surfaces or parts formed of PTFE by applying a vacuum to powered or granulated PTFE in a heated compression mold. The process further includes applying a compression anvil within the metallic mold, removing the mold from a heat source and quenching the mold while maintaining the pressure in the mold during quenching. A mold or mold insert may be manufactured from sintered metal, sintered ceramic or sintered stainless steel to allow the vacuum to be applied across a surface holding the micro or nanostructures.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: April 19, 2011
    Inventors: Todd E. Lizotte, Orest Ohar
  • Patent number: 7668364
    Abstract: Inspection of partially drilled microvias by fluorescence based optical imaging techniques, selective coaxial illumination and multivariable off-axis illumination and the use of comparative image analysis and the transformation of back reflected radiation by means of an integrated fluorescing plate mounted to the surface of a CCD or EMCCD array.
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: February 23, 2010
    Assignee: Hitachi Via Mechanics, Ltd.
    Inventors: Todd E. Lizotte, Orest Ohar
  • Publication number: 20100027570
    Abstract: Fiber lasers and methods for constructing and using fiber lasers for micro-/nano-machining with output beams including stacked pulses and combinations of continuous wave, pseudo-continuous wave and pulse sequence components.
    Type: Application
    Filed: July 27, 2009
    Publication date: February 4, 2010
    Applicant: HITACHI VIA MECHANICS, LTD.
    Inventors: Todd E. LIZOTTE, Orest OHAR
  • Patent number: 7602822
    Abstract: Fiber lasers and methods for constructing and using fiber lasers for micro-/nano-machining with output beams including stacked pulses and combinations of continuous wave, pseudo-continuous wave and pulse sequence components.
    Type: Grant
    Filed: September 28, 2005
    Date of Patent: October 13, 2009
    Assignee: Hitachi Via Mechanics, Ltd
    Inventors: Todd E Lizotte, Orest Ohar
  • Publication number: 20090072428
    Abstract: A process for the manufacture of micro or nanostructure surfaces or parts formed of PTFE by applying a vacuum to powered or granulated PTFE in a heated compression mold, applying a compression anvil within the metallic mold, removing the mold from the heating bath and quenching the mold to maintain pressure in the mold during a part of the quench. A mold or mold insert may be manufactured from sintered metal, a sintered ceramic of sintered stainless steel to allow the vacuum to be applied across a surface holding the micro or nanostructures.
    Type: Application
    Filed: August 22, 2008
    Publication date: March 19, 2009
    Inventors: Todd E. LIZOTTE, Orest OHAR
  • Publication number: 20080144921
    Abstract: Inspection of partially drilled microvias by fluorescence based optical imaging techniques, selective coaxial illumination and multivariable off-axis illumination and the use of comparative image analysis and the transformation of back reflected radiation by means of an integrated fluorescing plate mounted to the surface of a CCD or EMCCD array.
    Type: Application
    Filed: April 26, 2006
    Publication date: June 19, 2008
    Inventors: Todd E. Lizotte, Orest Ohar
  • Patent number: 7204419
    Abstract: An indicia for marking on an object, such as a cartridge case, for representing selected information, such as identification indicia identifying the firearm that discharged the cartridge, and methods and apparatus for generating, imprinting and reading the identification indicia. An indicia includes a multi-dimensional array of encoded marks, including encoded marks determined by spectral encoding variables representing the selected information wherein each spectral variable is spectrally distinguishable from others of the spectral variables representing variables, and an encoded pattern of the encoded marks is determined by algorithmic transformation of the selected information. An indicia may also include hologram related artwork. An indicia may be an encoded hologram multi-dimensional barcode, an encoded hologram or an encoded concentric circular barcode and may be formed of a single indicia or as an array of indicia.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: April 17, 2007
    Assignee: Identifcation Dynamics, LLC
    Inventors: Todd E. Lizotte, Orest Ohar
  • Publication number: 20060238743
    Abstract: An optical mount device for holographic and diffractive beam shaped image speckle reduction by active beam sampling by means of low and high frequency vibrations induced in the HOE/DOE optical mount. A holographic optical element or a diffractive optical element is placed into an optical mount which is isolated by small flexures or springs and is moved in an x-y plane at variable frequencies ranging from 1 to 50 kHz.
    Type: Application
    Filed: April 20, 2006
    Publication date: October 26, 2006
    Inventors: Todd Lizotte, Orest Ohar, Richard Rosenberg
  • Patent number: 7111423
    Abstract: An indicia for marking on an object, such as a cartridge case, for representing selected information, such as identification indicia identifying the firearm that discharged the cartridge, and methods and apparatus for generating, imprinting and reading the identification indicia. An indicia includes a multi-dimensional array of encoded marks, including encoded marks determined by spectral encoding variables representing the selected information wherein each spectral variable is spectrally distinguishable from others of the spectral variables representing variables, and an encoded pattern of the encoded marks is determined by algorithmic transformation of the selected information. An indicia may also include hologram related artwork. An indicia may be an encoded hologram multi-dimensional barcode, an encoded hologram or an encoded concentric circular barcode and may be formed of a single indicia or as an array of indicia.
    Type: Grant
    Filed: May 1, 2003
    Date of Patent: September 26, 2006
    Assignee: Identification Dynamics, LLC
    Inventors: Todd E. Lizotte, Orest Ohar
  • Publication number: 20060202115
    Abstract: An apparatus and method for maintaining a desired position of a collimated light beam are provided. An optical system includes one or more passive optical elements movably positioned in the beam path. Beam position is responsive to movement of at least one of the passive optical elements. The actual position of the beam is detected and compared with the desired beam position. An error signal is generated and the beam path is altered responsive to movement of one or more of the passive optical elements. In further aspects, beam shaping optics, such diffractive optics, are provided to shape the sensed beam portion. In still other aspects, thermal conditions of the laser may be monitored and a thermal map is provided to automatically compensate for estimated beam drift due to thermal conditions.
    Type: Application
    Filed: March 10, 2005
    Publication date: September 14, 2006
    Inventors: Todd Lizotte, Orest Ohar
  • Publication number: 20060174531
    Abstract: An indicia for marking on an object, such as a cartridge case, for representing selected information, such as identification indicia identifying the firearm that discharged the cartridge, and methods and apparatus for generating, imprinting and reading the identification indicia. An indicia includes a multi-dimensional array of encoded marks, including encoded marks determined by spectral encoding variables representing the selected information wherein each spectral variable is spectrally distinguishable from others of the spectral variables representing variables, and an encoded pattern of the encoded marks is determined by algorithmic transformation of the selected information. An indicia may also include hologram related artwork. An indicia may be an encoded hologram multi-dimensional barcode, an encoded hologram or an encoded concentric circular barcode and may be formed of a single indicia or as an array of indicia.
    Type: Application
    Filed: May 1, 2003
    Publication date: August 10, 2006
    Inventors: Todd Lizotte, Orest Ohar
  • Publication number: 20060065640
    Abstract: Fiber lasers and methods for constructing and using fiber lasers for micro-/nano-machining with output beams including stacked pulses and combinations of continuous wave, pseudo-continuous wave and pulse sequence components.
    Type: Application
    Filed: September 28, 2005
    Publication date: March 30, 2006
    Inventors: Todd Lizotte, Orest Ohar
  • Publication number: 20060026880
    Abstract: An indicia for marking on an object, such as a cartridge case, for representing selected information, such as identification indicia identifying the firearm that discharged the cartridge, and methods and apparatus for generating, imprinting and reading the identification indicia. An indicia includes a multi-dimensional array of encoded marks, including encoded marks determined by spectral encoding variables representing the selected information wherein each spectral variable is spectrally distinguishable from others of the spectral variables representing variables, and an encoded pattern of the encoded marks is determined by algorithmic transformation of the selected information. An indicia may also include hologram related artwork. An indicia may be an encoded hologram multi-dimensional barcode, an encoded hologram or an encoded concentric circular barcode and may be formed of a single indicia or as an array of indicia.
    Type: Application
    Filed: March 31, 2005
    Publication date: February 9, 2006
    Inventors: Todd Lizotte, Orest Ohar
  • Publication number: 20050241203
    Abstract: Imprinting an identification indicia on a cartridge in a difficult context, such as on a coated cartridge or on a high power cartridge. A marking indicia is formed on a base surface located in the interior surface of a cartridge chamber containing the cartridge and includes marking lands raised with respect to the base surface and a maximum marking indicia elevation above the base surface that is coplanar with the interior surface. The marking indicia is thereby recessed with respect to the interior surface and the identification indicia is thereby recessed with respect to the imprint surface.
    Type: Application
    Filed: January 6, 2005
    Publication date: November 3, 2005
    Inventors: Todd Lizotte, Orest Ohar
  • Publication number: 20050188576
    Abstract: An indicia for marking on an object, such as a cartridge case, for representing selected information, such as identification indicia identifying the firearm that discharged the cartridge, and methods and apparatus for generating, imprinting and reading the identification indicia. An indicia includes a multi-dimensional array of encoded marks, including encoded marks determined by spectral encoding variables representing the selected information wherein each spectral variable is spectrally distinguishable from others of the spectral variables representing variables, and an encoded pattern of the encoded marks is determined by algorithmic transformation of the selected information. An indicia may also include hologram related artwork. An indicia may be an encoded hologram multi-dimensional barcode, an encoded hologram or an encoded concentric circular barcode and may be formed of a single indicia or as an array of indicia.
    Type: Application
    Filed: March 31, 2005
    Publication date: September 1, 2005
    Inventors: Todd Lizotte, Orest Ohar
  • Patent number: 6909735
    Abstract: A laser process system with multiple, independently steerable laser beamlets and including a laser and beam shaper for generating a shaped source beam, a splitter stage for generating a plurality of beamlets from the shaped source beam, a beamlet controller including an independently steerable beamlet steering mirror for and corresponding to each beamlet for independently directing the corresponding beamlet, a mirror controller for controlling each beamlet steering mirror, and an optical path including a scanning lens for directing each steered beamlet to a target area of a workpiece. Each beamlet steering mirror is a multi-axis micro-electro-mechanical mirror and the system further includes a beam dump located in the optical path for intercepting a beamlet steered into the beam dump by the corresponding beamlet steering mirror.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: June 21, 2005
    Assignee: Hitachi Via Mechanics, Ltd.
    Inventors: Todd E. Lizotte, Orest Ohar
  • Publication number: 20040251243
    Abstract: A laser process system with multiple, independently steerable laser beamlets and including a laser and beam shaper for generating a shaped source beam, a splitter stage for generating a plurality of beamlets from the shaped source beam, a beamlet controller including an independently steerable beamlet steering mirror for and corresponding to each beamlet for independently directing the corresponding beamlet, a mirror controller for controlling each beamlet steering mirror, and an optical path including a scanning lens for directing each steered beamlet to a target area of a workpiece. Each beamlet steering mirror is a multi-axis micro-electro-mechanical mirror and the system further includes a beam dump located in the optical path for intercepting a beamlet steered into the beam dump by the corresponding beamlet steering mirror.
    Type: Application
    Filed: July 1, 2004
    Publication date: December 16, 2004
    Inventors: Todd E. Lizotte, Orest Ohar
  • Publication number: 20040217173
    Abstract: An indicia for marking on an object, such as a cartridge case, for representing selected information, such as identification indicia identifying the firearm that discharged the cartridge, and methods and apparatus for generating, imprinting and reading the identification indicia. An indicia includes a multi-dimensional array of encoded marks, including encoded marks determined by spectral encoding variables representing the selected information wherein each spectral variable is spectrally distinguishable from others of the spectral variables representing variables, and an encoded pattern of the encoded marks is determined by algorithmic transformation of the selected information. An indicia may also include hologram related artwork. An indicia may be an encoded hologram multi-dimensional barcode, an encoded hologram or an encoded concentric circular barcode and may be formed of a single indicia or as an array of indicia.
    Type: Application
    Filed: July 18, 2003
    Publication date: November 4, 2004
    Inventors: Todd E. Lizotte, Orest Ohar
  • Publication number: 20040200815
    Abstract: A laser process system with multiple, independently steerable laser beamlets and including a laser and beam shaper for generating a shaped source beam, a splitter stage for generating a plurality of beamlets from the shaped source beam, a beamlet controller including an independently steerable beamlet steering mirror for and corresponding to each beamlet for independently directing the corresponding beamlet, a mirror controller for controlling each beamlet steering mirror, and an optical path including a scanning lens for directing each steered beamlet to a target area of a workpiece. Each beamlet steering mirror is a multi-axis micro-electro-mechanical mirror and the system further includes a beam dump located in the optical path for intercepting a beamlet steered into the beam dump by the corresponding beamlet steering mirror.
    Type: Application
    Filed: April 10, 2003
    Publication date: October 14, 2004
    Inventors: Todd E. Lizotte, Orest Ohar