Patents by Inventor Richard M Osgood

Richard M Osgood 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).

  • Publication number: 20190100634
    Abstract: Biologically-inspired compositions, including color changing compositions, and corresponding embodiments such as sensors, textile materials, coatings and films, are provided which typically include a solid, transparent and nondegradable matrix. The matrix contains a plurality of (i) synthetic particles having a size in the micrometer or nanometer range, each synthetic particle including one or more aggregates of a pigment selected from phenoxazone, phenoxazine, and a derivate or precursor thereof, and a stabilizing material which has a refractive index larger than 1.45, the aggregates having a size larger than about 100 nm; or (ii) submicrometer natural particles extracted and purified from homogenized tissue.
    Type: Application
    Filed: September 25, 2018
    Publication date: April 4, 2019
    Inventors: Leila Deravi, Camille A. Martin, Amrita Kumar, Richard M. Osgood, III
  • Patent number: 8057980
    Abstract: Translucent, transparent, or semi-translucent microlens sheetings with composite images are disclosed, in which a composite image floats above or below the sheeting, or both. The composite image may be two-dimensional or three-dimensional. The sheeting may have at least one layer of material having a surface of microlenses that form one or more images at positions internal to the layer of material, at least one of the images being a partially complete image. Additional layers, such as retroreflective, translucent, transparent, or optical structure layers may also be incorporated into the sheeting.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: November 15, 2011
    Inventors: Douglas S. Dunn, Robert L. W. Smithson, Robert T. Krasa, Michael W. Dolezal, Jeffrey M. Florczak, Stephen P. Maki, Richard M. Osgood, III
  • Patent number: 7920261
    Abstract: A particle detection system that images and detects particles in a fluid flow stream through use of detector array(s) is described. The detection system may include light source arrays that may selectively illuminate a particle in a fluid stream. The detection system may also include a detector array employing smart binning to read the measured signals. The smart binning of the detector array may be achieved through knowledge of an exact particle location provided by a position sensitive detector. The detector array(s) may be low cost based on intelligence built into the system. This particle detection system may be particularly useful for detection and discrimination of different particle types since the read-out of the particle signals can be accomplished with low noise and can be flexible enough to optimize the read out measurements for each particle. The particle detection system may be used, for example, in early warning contamination detection systems and manufacturing processes.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: April 5, 2011
    Assignee: Massachusetts Institute of Technology
    Inventors: Thomas H. Jeys, Antonio Sanchez-Rubio, Richard J. Molnar, Robert K. Reich, Jinendra K. Ranka, David L. Spears, Richard M. Osgood, III
  • Publication number: 20100053614
    Abstract: A particle detection system that images and detects particles in a fluid flow stream through use of detector array(s) is described. The detection system may include light source arrays that may selectively illuminate a particle in a fluid stream. The detection system may also include a detector array employing smart binning to read the measured signals. The smart binning of the detector array may be achieved through knowledge of an exact particle location provided by a position sensitive detector. The detector array(s) may be low cost based on intelligence built into the system. This particle detection system may be particularly useful for detection and discrimination of different particle types since the read-out of the particle signals can be accomplished with low noise and can be flexible enough to optimize the read out measurements for each particle. The particle detection system may be used, for example, in early warning contamination detection systems and manufacturing processes.
    Type: Application
    Filed: February 11, 2008
    Publication date: March 4, 2010
    Inventors: Thomas H. Jeys, Antonio Sanchez-Rubio, Richard J. Molnar, Robert K. Reich, Jinendra K. Ranka, David L. Spears, Richard M. Osgood, III
  • Publication number: 20080118862
    Abstract: Translucent, transparent, or semi-translucent microlens sheetings with composite images are disclosed, in which a composite image floats above or below the sheeting, or both. The composite image may be two-dimensional or three-dimensional. The sheeting may have at least one layer of material having a surface of microlenses that form one or more images at positions internal to the layer of material, at least one of the images being a partially complete image. Additional layers, such as retroreflective, translucent, transparent, or optical structure layers may also be incorporated into the sheeting.
    Type: Application
    Filed: December 20, 2007
    Publication date: May 22, 2008
    Inventors: Douglas S. Dunn, Robert L.W. Smithson, Robert T. Krasa, Michael W. Dolezal, Jeffrey M. Florczak, Robert T. Krasa, Stephen P. Maki, Richard M. Osgood
  • Patent number: 7312092
    Abstract: A method is provided for fabricating thin membrane structures in localized surface regions of a single crystal substrate. In the method, ion implantation masks are patterned on the surface of the single crystal substrate with openings that define the localized surface regions. Foreign ions are implanted through the openings into the single crystal substrate to modify the chemical and/or structural properties of subsurface layers at predetermined depths underneath super layers of material. These subsurface layers are removed by selective etching. The removal of the subsurface layers leaves the super layers of material intact as membrane structures on top of openings or channels corresponding to the space of the removed subsurface layers. At least one portion or end of a membrane structure remains attached to the single crystal substrate.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: December 25, 2007
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Tomoyuki Izuhara, Richard M. Osgood, Jr.
  • Patent number: 7068434
    Abstract: Microlens sheetings with composite images are disclosed, in which the composite image floats above or below the sheeting, or both. The composite image may be two-dimensional or three-dimensional. Methods for providing such an imaged sheeting, including by the application of radiation to a radiation sensitive material layer adjacent the microlenses, are also disclosed.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: June 27, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Jeffrey M. Florczak, Robert T. Krasa, Stephen P. Maki, Richard M. Osgood, III
  • Patent number: 6943932
    Abstract: A device and method for optical isolation for use in optical systems is disclosed. The device provides for a waveguide optical isolator fabricated using two arms, made of optical waveguides comprising magneto-optical material, in a Mach-Zehnder interferometer configuration. The device of the present invention operates using the TM mode of a light wave and, thus, does not require phase-matching of TM and TE modes. Further, the present invention does not use polarizers to extinguish the optical feed-back.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: September 13, 2005
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Junichiro Fujita, Miguel Levy, Richard M Osgood
  • Patent number: 6792172
    Abstract: The Multimode Interference coupler according to the invention has smoothly continuous inwardly tapered sidewalls (301) which define the width of the multimode region (W1) along the propagation axis of the device. The inward taper causes the average width of the device to be reduced in comparison to known couplers having straight sidewalls (202). Further, invention allows the access waveguides (303, 309) to remain sufficiently spaced, while reducing the overall length of the device, to avoid lithographic gap fill-in and unwanted optical coupling between the waveguides.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: September 14, 2004
    Assignee: The Trustees of Columbia University of the City of New York
    Inventors: David S. Levy, Robert Scarmozzino, Richard M. Osgood, Jr.
  • Publication number: 20040047531
    Abstract: A device and method for optical isolation for use in optical systems is disclosed. The device provides for a waveguide optical isolator fabricated using two arms, made of optical waveguides comprising magneto-optical material, in a Mach-Zehnder interferometer configuration. The device of the present invention operates using the TM mode of a light wave and, thus, does not require phase-matching of TM and TE modes. Further, the present invention does not use polarizers to extinguish the optical feedback.
    Type: Application
    Filed: June 30, 2003
    Publication date: March 11, 2004
    Inventors: Junichiro Fujita, Miguel Levy, Richard M Osgood
  • Patent number: 6641662
    Abstract: A method for fabricating ultra-thin single-crystal metal oxide wave retarder plates, such as a zeroth-order X-cut single-crystal LiNbO3 half-wave plate, comprises ion implanting a bulk birefringent metal oxide crystal at normal incidence through a planar major surface thereof to form a damage layer at a predetermined distance d below the planar major surface, and detaching a single-crystal wave retarder plate from the bulk crystal by either chemically etching away the damage layer or by subjecting the bulk crystal having the damage layer to a rapid temperature increase to effect thermally induced snap-off detachment of the wave retarder plate. The detached wave retarder plate has a predetermined thickness d dependent on the ion implantation energy.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: November 4, 2003
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Antonije M. Radojevic, Richard M. Osgood, Jr., Miguel Levy
  • Patent number: 6540827
    Abstract: A method is provided for detaching a single-crystal film from an epilayer/substrate or bulk crystal structure. The method includes the steps of implanting ions into the crystal structure to form a damage layer within the crystal structure at an implantation depth below a top surface of the crystal structure, and chemically etching the damage layer to effect detachment the single-crystal film from the crystal structure. The thin film may be detached by subjecting the crystal structure with the ion implanted damage layer to a rapid temperature increase without chemical etching. The method of the present invention is especially useful for detaching single-crystal metal oxide films from metal oxide crystal structures. Methods for enhancing the crystal slicing etch-rate are also disclosed.
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: April 1, 2003
    Assignee: Trustees of Columbia University in the City of New York
    Inventors: Miguel Levy, Richard M. Osgood, Jr., Antonije M. Radojevic
  • Publication number: 20030010275
    Abstract: A method for fabricating ultra-thin single-crystal metal oxide wave retarder plates, such as a zeroth-order X-cut single-crystal LiNbO3 half-wave plate, comprises ion implanting a bulk birefringent metal oxide crystal at normal incidence through a planar major surface thereof to form a damage layer at a predetermined distance d below the planar major surface, and detaching a single-crystal wave retarder plate from the bulk crystal by either chemically etching away the damage layer or by subjecting the bulk crystal having the damage layer to a rapid temperature increase to effect thermally induced snap-off detachment of the wave retarder plate. The detached wave retarder plate has a predetermined thickness d dependent on the ion implantation energy.
    Type: Application
    Filed: March 30, 2001
    Publication date: January 16, 2003
    Inventors: Antonije M. Radojevic, Richard M. Osgood, Miguel Levy
  • Patent number: 6503321
    Abstract: A method is provided for detaching a single-crystal film from an epilayer/substrate or bulk crystal structure. The method includes the steps of implanting ions into the crystal structure to form a damage layer within the crystal structure at an implantation depth below a top surface of the crystal structure, and chemically etching the damage layer to effect detachment the single-crystal film from the crystal structure. The thin film may be detached by subjecting the crystal structure with the ion implanted damage layer to a rapid temperature increase without chemical etching. The method of the present invention is especially useful for detaching single-crystal metal oxide films from metal oxide crystal structures. Methods for enhancing the crystal slicing etch-rate are also disclosed.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: January 7, 2003
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Miguel Levy, Richard M. Osgood, Jr., Antonije M. Radojevic
  • Publication number: 20020053318
    Abstract: A method is provided for detaching a single-crystal film from an epilayer/substrate or bulk crystal structure. The method includes the steps of implanting ions into the crystal structure to form a damage layer within the crystal structure at an implantation depth below a top surface of the crystal structure, and chemically etching the damage layer to effect detachment the single-crystal film from the crystal structure. The thin film may be detached by subjecting the crystal structure with the ion implanted damage layer to a rapid temperature increase without chemical etching. The method of the present invention is especially useful for detaching single-crystal metal oxide films from metal oxide crystal structures. Methods for enhancing the crystal slicing etch-rate are also disclosed.
    Type: Application
    Filed: April 9, 1999
    Publication date: May 9, 2002
    Inventors: MIGUEL LEVY, RICHARD M. OSGOOD, ANTONIJE M. RADOJEVIC
  • Publication number: 20020054434
    Abstract: Microlens sheetings with composite images are disclosed, in which the composite image floats above or below the sheeting, or both. The composite image may be two-dimensional or three-dimensional. Methods for providing such an imaged sheeting, including by the application of radiation to a radiation sensitive material layer adjacent the microlenses, are also disclosed.
    Type: Application
    Filed: July 3, 2001
    Publication date: May 9, 2002
    Applicant: 3M Innovative Properties Company
    Inventors: Jeffrey M. Florczak, Robert T. Krasa, Stephen P. Maki, Richard M. Osgood
  • Patent number: 6288842
    Abstract: Microlens sheetings with composite images are disclosed, in which the composite image floats above or below the sheeting, or both. The composite image may be two-dimensional or three-dimensional. Methods for providing such an imaged sheeting, including by the application of radiation to a radiation sensitive material layer adjacent the microlenses, are also disclosed.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: September 11, 2001
    Assignee: 3M Innovative Properties
    Inventors: Jeffrey M. Florczak, Robert T. Krasa, Stephen P. Maki, Richard M. Osgood, III
  • Patent number: 6120597
    Abstract: A method is provided for detaching a single-crystal film from an epilayer/substrate or bulk crystal structure. The method includes the steps of implanting ions into the crystal structure to form a damage layer within the crystal structure at an implantation depth below a top surface of the crystal structure, and chemically etching the damage layer to effect detachment the single-crystal film from the crystal structure. The method of the present invention is especially useful for detaching single-crystal metal oxide films from metal oxide crystal structures.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: September 19, 2000
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Miguel Levy, Richard M. Osgood, Jr.
  • Patent number: 5408565
    Abstract: In a polarization rotator device, a thin-film magneto-optic medium is magnetized by a thin-film magnet. To serve as an optical isolator, the device may include polarizers. In such an optical isolator, in which the magneto-optic medium was formed as a Bi-YIG triple-layer structure, and the thin-film magnet as a single-crystal iron-cobalt layer, an extinction ratio better than -20 dB was realized.
    Type: Grant
    Filed: February 22, 1993
    Date of Patent: April 18, 1995
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Miguel Levy, Richard M. Osgood
  • Patent number: 5081002
    Abstract: The sensitivity of localized photochemical etching to the optical and electrical properties of multilayered semiconductor materials is utilized for selectively etching a laterally extending undercut in a buried layer. The semiconductor body is immersed in a suitable etching solution and a beam of light of appropriate wavelength and intensity is directed onto the semiconductor solution interface. The buried layer has a longer diffusion length for photogenerated carriers than the layers adjacent thereto, casuing carriers to diffuse away from the illuminated region within the buried layer and thereby etch the buried layer laterally, undercutting the adjacent layers.
    Type: Grant
    Filed: April 24, 1989
    Date of Patent: January 14, 1992
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Mark N. Ruberto, Alan E. Willner, Richard M. Osgood, Jr., Dragan V. Podlesnik