Patents by Inventor David A Agard
David A Agard 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).
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Publication number: 20220155287Abstract: Provided herein are pharmaceutical compositions and methods for treatment or prevention of synucleinopathies with small-molecule inhibitors of pathogenic ?-synuclein activity having the Formula (I). Also, provide are methods for identifying novel compounds for modulating ?-synuclein activity.Type: ApplicationFiled: March 17, 2020Publication date: May 19, 2022Inventors: Lisa MCCONLOGUE, David A. AGARD
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Publication number: 20210310910Abstract: Herein are innovations that enable facile cryo-EM analysis of diverse samples. Methods of functionalizing sample grids for cryo-EM are described, including methods of creating high quality graphene oxide films on cryo-EM substrates. The cryo-EM sample substrates are functionalized with affinity molecules that efficiently concentrate sample molecules and other specimen types on the grid, away from the air-water interface. Affinity groups include amines and proteins such as tagging system proteins and peptides that can be used to capture diverse sample types with high affinity. Optionally, spacers such as PEG chains are used to place sample particles away from the substrate surface, reducing substrate-induced artifacts.Type: ApplicationFiled: August 19, 2019Publication date: October 7, 2021Applicant: The Regents of the University of CaliforniaInventors: Feng Wang, David Agard, Yifan Cheng, Eugene Palovcak
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Patent number: 10983328Abstract: Polarized light which is emitted from an optical fiber becomes circular polarized light by passing through a first quarter wave plate. The circular polarized light which has entered a second quarter wave plate is converted into nearly linear polarized light which has S polarization. P polarization components are removed from the nearly linear polarized light by a polarizer, but the polarizer is not always necessary. The optical axis of the polarizer is set to be a direction which allows transmitting of S polarized light. The light that has passed through the polarizer is separated into diffracted lights by a diffraction grating, and is used as the structured illumination light.Type: GrantFiled: November 5, 2019Date of Patent: April 20, 2021Assignees: NIKON CORPORATION, THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Yumiko Ouchi, Hisao Osawa, Mats G. L. Gustafsson, David A. Agard
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Publication number: 20200064617Abstract: Polarized light which is emitted from an optical fiber becomes circular polarized light by passing through a first quarter wave plate. The circular polarized light which has entered a second quarter wave plate is converted into nearly linear polarized light which has S polarization. P polarization components are removed from the nearly linear polarized light by a polarizer, but the polarizer is not always necessary. The optical axis of the polarizer is set to be a direction which allows transmitting of S polarized light. The light that has passed through the polarizer is separated into diffracted lights by a diffraction grating, and is used as the structured illumination light.Type: ApplicationFiled: November 5, 2019Publication date: February 27, 2020Applicants: NIKON CORPORATION, THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Yumiko OUCHI, Hisao OSAWA, Mats G. L. GUSTAFSSON, David A. AGARD
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Patent number: 10502945Abstract: Polarized light which is emitted from an optical fiber becomes circular polarized light by passing through a first quarter wave plate. The circular polarized light which has entered a second quarter wave plate is converted into nearly linear polarized light which has S polarization. P polarization components are removed from the nearly linear polarized light by a polarizer, but the polarizer is not always necessary. The optical axis of the polarizer is set to be a direction which allows transmitting of S polarized light. The light that has passed through the polarizer is separated into diffracted lights by a diffraction grating, and is used as the structured illumination light.Type: GrantFiled: August 25, 2015Date of Patent: December 10, 2019Assignees: NIKON CORPORATION, THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Yumiko Ouchi, Hisao Osawa, Mats G. L. Gustafsson, David A. Agard
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Publication number: 20160062102Abstract: Polarized light which is emitted from an optical fiber becomes circular polarized light by passing through a first quarter wave plate. The circular polarized light which has entered a second quarter wave plate is converted into nearly linear polarized light which has S polarization. P polarization components are removed from the nearly linear polarized light by a polarizer, but the polarizer is not always necessary. The optical axis of the polarizer is set to be a direction which allows transmitting of S polarized light. The light that has passed through the polarizer is separated into diffracted lights by a diffraction grating, and is used as the structured illumination light.Type: ApplicationFiled: August 25, 2015Publication date: March 3, 2016Inventors: Yumiko OUCHI, Hisao OSAWA, Mats G. L. GUSTAFSSON, David A. AGARD
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Patent number: 9146391Abstract: Polarized light which is emitted from an optical fiber becomes circular polarized light bypassing through a first quarter wave plate. The circular polarized light which has entered a second quarter wave plate is converted into nearly linear polarized light which has S polarization. P polarization components are removed from the nearly linear polarized light by a polarizer, but the polarizer is not always necessary. The optical axis of the polarizer is set to be a direction which allows transmitting of S polarized light. The light that has passed through the polarizer is separated into diffracted lights by a diffraction grating, and is used as the structured illumination light.Type: GrantFiled: April 25, 2011Date of Patent: September 29, 2015Assignees: NIKON CORPORATION, THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Yumiko Ouchi, Hisao Osawa, Mats G. L. Gustafsson, David A. Agard
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Patent number: 8894227Abstract: A method and apparatus for correcting optical aberrations in an optical device using a deformable mirror. An actuator is provided which applies a deforming force to the deformable mirror. By selecting particular thickness profiles of the deformable mirror and force configurations of the actuator, the optical device can be configured to correct for different optical aberrations. The actuator may be configured to apply the deforming force peripherally, centrally, non-centrally or homogenously across the surface of the deformable mirror. The deformable mirror may be a flat disk mirror, a convex mirror, or a concave mirror, and may include a membrane having a variable flexibility. The optical device may be a wide-field microscope, an optical read/write device, laser tweezers, or any other optical device in which correction of optical aberrations is desirable.Type: GrantFiled: January 30, 2009Date of Patent: November 25, 2014Assignees: The Regents of the University of California, Yeda Research & Development Co. Ltd.Inventors: Peter Knor, David A. Agard, Zvi Kam, John W. Sedat
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Publication number: 20120026311Abstract: Polarized light which is emitted from an optical fiber becomes circular polarized light bypassing through a first quarter wave plate. The circular polarized light which has entered a second quarter wave plate is converted into nearly linear polarized light which has S polarization. P polarization components are removed from the nearly linear polarized light by a polarizer, but the polarizer is not always necessary. The optical axis of the polarizer is set to be a direction which allows transmitting of S polarized light. The light that has passed through the polarizer is separated into diffracted lights by a diffraction grating, and is used as the structured illumination light.Type: ApplicationFiled: April 25, 2011Publication date: February 2, 2012Applicants: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, NIKON CORPORATIONInventors: Yumiko OUCHI, Hisao OSAWA, Mats G. L. GUSTAFSSON, David A. AGARD
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Publication number: 20110134552Abstract: A method and apparatus for correcting optical aberrations in an optical device using a deformable mirror. An actuator is provided which applies a deforming force to the deformable mirror. By selecting particular thickness profiles of the deformable mirror and force configurations of the actuator, the optical device can be configured to correct for different optical aberrations. The actuator may be configured to apply the deforming force peripherally, centrally, non-centrally or homogenously across the surface of the deformable mirror. The deformable mirror may be a flat disk mirror, a convex mirror, or a concave mirror, and may include a membrane having a variable flexibility. The optical device may be a wide-field microscope, an optical read/write device, laser tweezers, or any other optical device in which correction of optical aberrations is desirable.Type: ApplicationFiled: January 30, 2009Publication date: June 9, 2011Inventors: Peter Kner, David A. Agard, Zvi Kam, John W. Sedat
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Patent number: 7764433Abstract: A system and method for correcting optical aberrations in optical devices, such as wide-field microscopes, optical tweezers and optical media devices, such as DVD drives. The system uses adaptive optics to correct optical aberrations, such as spherical and space-variant aberrations. Spherical aberrations can be corrected using one adaptive optical elements and space-variant aberrations can be corrected using numerous adaptive optical elements in tandem. The adaptive optical elements may be of several types, such as a liquid lenses, deformable membrane mirrors or various liquid crystal phase and amplitude modulators. Adaptive optics can also be used to simultaneously shift the focus of the optical device and correct optical aberrations.Type: GrantFiled: May 18, 2006Date of Patent: July 27, 2010Assignees: The Regents of the University of California, Yeda Research and Development Co., Ltd.Inventors: Zvi Kam, David A. Agard, Peter Kner, John W. Sedat
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Publication number: 20070268592Abstract: A system and method for correcting optical aberrations in optical devices, such as wide-field microscopes, optical tweezers and optical media devices, such as DVD drives. The system uses adaptive optics to correct optical aberrations, such as spherical and space-variant aberrations. Spherical aberrations can be corrected using one adaptive optical elements and space-variant aberrations can be corrected using numerous adaptive optical elements in tandem. The adaptive optical elements may be of several types, such as a liquid lenses, deformable membrane mirrors or various liquid crystal phase and amplitude modulators. Adaptive optics can also be used to simultaneously shift the focus of the optical device and correct optical aberrations.Type: ApplicationFiled: May 18, 2006Publication date: November 22, 2007Inventors: Zvi Kam, David A. Agard, Peter Kner, John W. Sedat
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Patent number: 7224824Abstract: Apparatus for computational adaptive imaging comprises the following: an image information acquirer, which provides information relating to the refractive characteristics in a three-dimensional imaged volume; a ray tracer, which uses the information relating to the refractive characteristics to trace a multiplicity of rays from a multiplicity of locations in the three-dimensional imaged volume through the three-dimensional imaged volume, thereby providing a location dependent point spread function, and a deconvolver, which uses the location dependent point spread function, to provide an output image corrected for distortions due to variations in the refractive characteristics in the three-dimensional imaged volume.Type: GrantFiled: November 30, 1999Date of Patent: May 29, 2007Assignees: Yeda Research and Development Co., Ltd., The Regents of the University of CaliforniaInventors: Zvi Kam, John W Sedat, David A Agard, Bridget M Hanser
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Patent number: 6658142Abstract: Apparatus for computational adaptive imaging comprises the following: an image information acquirer, which provides information relating to the refractive characteristics in a three-dimensional imaged volume; a ray tracer, which uses the information relating to the refractive characteristics to trace a multiplicity of rays from a multiplicity of locations in the three-dimensional imaged volume through the three-dimensional imaged volume, thereby providing a location dependent point spread function; and a deconvolver, which uses the location dependent point spread function, to provide an output image corrected for distortions due to variations in the refractive characteristics in the three-dimensional imaged volume.Type: GrantFiled: January 27, 1999Date of Patent: December 2, 2003Assignees: Yeda Research and Development Co., Ltd., The Regents of the University of CaliforniaInventors: Zvi Kam, John W. Sedat, David A. Agard, Bridget M. Hanser
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Patent number: 5671085Abstract: A method and apparatus for three dimensional optical microscopy is disclosed which employs dual opposing objective lenses about a sample and extended incoherent illumination to provide enhanced depth or Z direction resolution. In a first embodiment, observed light from both objective lenses are brought into coincidence on an image detector and caused to interfere thereon by optical path length adjustment. In a second embodiment, illuminating light from an extended incoherent light source is detected to the sample though both objective lenses and caused to interfere with a section of the sample by adjusting optical path lengths. Observed light from one objective lens is then recorded. In a third embodiment, which combines the first two embodiments, illuminating light from an extended incoherent light source is detected to the sample through both objective lenses and caused to interfere with a section of the sample by adjusting optical path lengths.Type: GrantFiled: February 3, 1995Date of Patent: September 23, 1997Assignee: The Regents of the University of CaliforniaInventors: Mats G.L. Gustafsson, John W. Sedat, David A. Agard
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Patent number: RE38307Abstract: A method and apparatus for three dimensional optical microscopy is disclosed which employs dual opposing objective lenses about a sample and extended incoherent illumination to provide enhanced depth or Z-direction resolution. In a first embodiment, observed light from both objective lenses are brought into coincidence on an image detector and caused to interfere thereon by optical path length adjustment. In a second embodiment, illuminating light from an extended incoherent light source is detected to the sample through both objective lenses and caused to interfere with a section of the sample by adjusting optical path lengths. Observed light from one objective lens is then recorded. In a third embodiment, which combines the first two embodiments, illuminating light from an extended incoherent light source is directed to the sample through both objective lenses and caused to interfere within a section of the sample by adjusting optical path lengths.Type: GrantFiled: September 22, 1999Date of Patent: November 11, 2003Assignee: The Regents of the University of CaliforniaInventors: Mats G. L. Gustafsson, John W. Sedat, David A. Agard