Patents by Inventor Steven G. Johnson
Steven G. Johnson 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: 20240300892Abstract: The present invention provides MDM2 inhibitor compounds of Formula I, wherein the variables are defined above, which compounds are useful as therapeutic agents, particularly for the treatment of cancers. The present invention also relates to pharmaceutical compositions that contain an MDM2 inhibitor.Type: ApplicationFiled: October 11, 2023Publication date: September 12, 2024Inventors: Michael D. Bartberger, Ana Gonzalez Buenrostro, Hilary Plake Beck, Xiaoqi Chen, Richard Victor Connors, Jeffrey Deignan, Jason A. Duquette, I, John Eksterowicz, Benjamin Fisher, Brian M. Fox, Jiasheng Fu, Zice Fu, Felix Gonzalez Lopez De Turiso, Michael W. Gribble, Darin J. Gustin, Julie A. Heath, Xin Huang, XianYun Jiao, Michael G. Johnson, Frank Kayser, David John Kopecky, SuJen Lai, Yihong Li, Zhihong Li, Jiwen Liu, Jonathan D. Low, Brian S. Lucas, Zhihua MA, Lawrence R. McGee, Joel McIntosh, Dustin L. McMinn, Julio C. Medina, Jeffrey Thomas Mihalic, Steven H. Olson, Yossup Rew, Philip M. Roveto, Daqing Sun, Xiaodong Wang, Yingcai Wang, Xuelei Yan, Ming Yu, Jiang Zhu
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Patent number: 11893484Abstract: In some embodiments, a method for optimal parallel execution of a simulation of a design is provided. A computing device extracts one or more features from the design. The computing device provides at least the one or more features as inputs to one or more machine learning models to determine one or more predictions of execution times. The computing device determines an optimum execution architecture based on the one or more predictions of execution times. The computing device distributes portions of the design for simulation based on the optimum execution architecture. In some embodiments, one or more machine learning models are trained to generate outputs for predicting an optimal parallel execution architecture for simulation of a design.Type: GrantFiled: December 3, 2020Date of Patent: February 6, 2024Assignee: X Development LLCInventors: Ardavan Oskooi, Christopher Hogan, Alec M. Hammond, Steven G. Johnson
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Publication number: 20210174206Abstract: In some embodiments, a method for optimal parallel execution of a simulation of a design is provided. A computing device extracts one or more features from the design. The computing device provides at least the one or more features as inputs to one or more machine learning models to determine one or more predictions of execution times. The computing device determines an optimum execution architecture based on the one or more predictions of execution times. The computing device distributes portions of the design for simulation based on the optimum execution architecture. In some embodiments, one or more machine learning models are trained to generate outputs for predicting an optimal parallel execution architecture for simulation of a design.Type: ApplicationFiled: December 3, 2020Publication date: June 10, 2021Inventors: Ardavan Oskooi, Christopher Hogan, Alec M. Hammond, Steven G. Johnson
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Patent number: 10353269Abstract: A fully confined dual frequency optical resonator configured for optical coupling to light having a first frequency ?1. The dual frequency optical resonator includes a plurality of alternating layer pairs configured in a grating configuration, each layer pair having a first layer formed of a first material and a second layer formed of a second material, the first material and second material being different materials. Each layer having a thickness different than a thickness of an adjacent layer to provide thereby aperiodic layer pairs, the thicknesses of adjacent layers being selected to create, via wave interference with each layer, optical resonances at the first frequency ?1 and a second frequency ?2 which is a harmonic of ?1, and to ensure a maximum spatial overlap between confined modes over the materials such that an overall quality factor Q of at least 1000 is achieved.Type: GrantFiled: February 27, 2017Date of Patent: July 16, 2019Assignees: THE TRUSTEES OF PRINCETON UNIVERSITY, PRESIDENT AND FELLOWS OF HARVARD COLLEGE, MASSACHUSETTS INSTITUTE OF TECHNOLOGYInventors: Alejandro Rodriguez, Zin Lin, Steven G. Johnson, Marko Loncar, Xiangdong Liang
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Patent number: 10073191Abstract: A filter to transmit incident radiation at a predetermined incidence angle includes a plurality of photonic crystal structures disposed substantially along a surface normal direction of the filter. The photonic crystal structure includes a multilayer cell that comprises a first layer having a first dielectric permittivity, and a second layer having a second dielectric permittivity different from the first dielectric permittivity. The first layer and the second layer define a Brewster angle substantially equal to the predetermined incidence angle based on the first dielectric permittivity and the second permittivity. Each photonic crystal structure in the plurality of photonic crystal structures defines a respective bandgap, and the respective bandgaps of the plurality of photonic crystal structures, taken together, cover a continuous spectral region of about 50 nm to about 100 mm.Type: GrantFiled: February 24, 2015Date of Patent: September 11, 2018Assignee: Massachusetts Institute of TechnologyInventors: Yichen Shen, Dexin Ye, Ivan Celanovic, Steven G. Johnson, John D. Joannopoulos, Marin Soljacic
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Publication number: 20170248831Abstract: A dual frequency optical resonator configured for optical coupling to light having a first frequency ?1. The dual frequency optical resonator includes a plurality of alternating layer pairs stacked in a post configuration, each layer pair having a first layer formed of a first material and a second layer formed of a second material, the first material and second materials being different materials. The first layer has a first thickness and the second layer has a second thickness, the thicknesses of the first and second layer being selected to create optical resonances at the first frequency ?1 and a second frequency ?2 which is a harmonic of ?1 and the thicknesses of the first and second layer also being selected to enhance nonlinear coupling between the first frequency ?1 and a second frequency ?2.Type: ApplicationFiled: February 27, 2017Publication date: August 31, 2017Applicants: The Trustees of Princeton University, President and Fellows of Harvard College, Massachusetts Institute of TechnologyInventors: Alejandro Rodriguez, Zin Lin, Steven G. Johnson, Marko Loncar, Xiangdong Liang
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Patent number: 9512036Abstract: A fiber is provided, including a cladding material that is disposed along a longitudinal-axis fiber length. A plurality of spherical particles are disposed as a sequence along a longitudinal line parallel to the longitudinal fiber axis in at least a portion of the fiber length, and include a spherical particle material that is interior to the fiber cladding material and different than the fiber cladding material. To produce particles, a drawn fiber, having a longitudinal-axis fiber length and including at least one fiber core that has a longitudinal core axis parallel to the longitudinal fiber axis and that is internally disposed to at least one outer fiber cladding layer along the fiber length, is heated for a time that is sufficient to cause a fiber core to break-up into droplets sequentially disposed along the fiber core axis. Fiber cooling solidifies droplets into spherical particles interior to fiber cladding.Type: GrantFiled: March 14, 2013Date of Patent: December 6, 2016Assignees: Massachusetts Institute of Technology, University of Central Florida Research Foundation, Inc.Inventors: Ayman F. Abouraddy, Esmaeil H. Banaei, Daosheng S. Deng, Yoel Fink, Steven G. Johnson, Joshua J. Kaufman, Xiangdong Liang, Soroush Shabahang, Guangming Tao
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Publication number: 20160340224Abstract: There is provided a fiber including a cladding material that is disposed along a longitudinal-axis fiber length. A plurality of spherical particles are provided, separated from one another and disposed in a longitudinal line parallel to the longitudinal fiber axis. The particles are in a sequence with controlled periodic spacing between particles along at least a portion of the fiber length. Each spherical particle has a spherical particle material that is embedded within and elementally different than the fiber cladding material.Type: ApplicationFiled: August 4, 2016Publication date: November 24, 2016Applicants: Massachusetts Institute of Technology, University of Central Florida Research Foundation, Inc.Inventors: Ayman F. Abouraddy, Esmaeil H. Banaei, Daosheng S. Deng, Yoel Fink, Steven G. Johnson, Joshua J. Kaufman, Xiangdong Liang, Soroush Shabahang, Guangming Tao
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Publication number: 20160252652Abstract: A filter to transmit incident radiation at a predetermined incidence angle includes a plurality of photonic crystal structures disposed substantially along a surface normal direction of the filter. The photonic crystal structure includes a multilayer cell that comprises a first layer having a first dielectric permittivity, and a second layer having a second dielectric permittivity different from the first dielectric permittivity. The first layer and the second layer define a Brewster angle substantially equal to the predetermined incidence angle based on the first dielectric permittivity and the second permittivity. Each photonic crystal structure in the plurality of photonic crystal structures defines a respective bandgap, and the respective bandgaps of the plurality of photonic crystal structures, taken together, cover a continuous spectral region of about 50 nm to about 100 mm.Type: ApplicationFiled: February 24, 2015Publication date: September 1, 2016Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGYInventors: Yichen Shen, Dexin Ye, Ivan Celanovic, Steven G. Johnson, John D. Joannopoulos, Marin Soljacic
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Publication number: 20160060166Abstract: A fiber is provided, including a cladding material that is disposed along a longitudinal-axis fiber length. A plurality of spherical particles are disposed as a sequence along a longitudinal line parallel to the longitudinal fiber axis in at least a portion of the fiber length. Each spherical particle is of a spherical particle material that is interior to and different than the fiber cladding material. The spacing between adjacent spherical particles in the sequence of particles is greater than the spherical particle diameter. Each spherical particle can be provided as a core-shell particle that includes a spherical core that is surrounded by at least one spherical shell. Each spherical particle can be provided with a plurality of azimuthal sections of at least two distinct materials.Type: ApplicationFiled: June 20, 2013Publication date: March 3, 2016Applicants: Massachusetts Institute of Technology, University of Central Florida Research Foundation, Inc.Inventors: Ayman F. Abouraddy, Esmaeil H. Banaei, Daosheng S. Deng, Yoel Fink, Steven G. Johnson, Joshua J. Kaufman, Xiangdong Liang, Soroush Shabahang, Guangming Tao
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Patent number: 9116537Abstract: Inventive systems and methods for the generation of energy using thermophotovoltaic cells are described. Also described are systems and methods for selectively emitting electromagnetic radiation from an emitter for use in thermophotovoltaic energy generation systems. In at least some of the inventive energy generation systems and methods, a voltage applied to the thermophotovoltaic cell (e.g., to enhance the power produced by the cell) can be adjusted to enhance system performance. Certain embodiments of the systems and methods described herein can be used to generate energy relatively efficiently.Type: GrantFiled: May 20, 2011Date of Patent: August 25, 2015Assignee: Massachusetts Institute of TechnologyInventors: Ivan Celanovic, Walker Chan, Peter Bermel, Adrian Y. X. Yeng, Christopher Marton, Michael Ghebrebrhan, Mohammad Araghchini, Klavs F. Jensen, Marin Soljacic, John D. Joannopoulos, Steven G. Johnson, Robert Pilawa-Podgurski, Peter Fisher
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Patent number: 9052434Abstract: A fiber structure for propagating one or more zero group-velocity modes is provided. The fiber structure includes a cladding arrangement comprising a photonic crystal having a complete bandgap at a specified index. A core is formed in a selective region of the cladding arrangement. The core allows the propagation of the one or more group-velocity modes.Type: GrantFiled: February 26, 2010Date of Patent: June 9, 2015Assignee: Massachusetts Institute of TechnologyInventors: Ardavan Farjadpour, John D. Joanopoulos, Steven G. Johnson
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Patent number: 9031362Abstract: Techniques and devices are disclosed to provide controlled inter-mode cross-talk in multimode optical waveguides. The structure of a bent multimode optical waveguide can be designed or configured in a way that either substantially minimizes inter-mode cross talk or achieves a desired inter-mode cross-talk. Specific examples based on the disclosed waveguide designs are provided for semiconductor integrated waveguide devices.Type: GrantFiled: June 19, 2014Date of Patent: May 12, 2015Assignees: Cornell University, Massachusetts Institute of TechnologyInventors: Michal Lipson, Lucas Heitzmann Gabrielli, Steven G. Johnson, David Liu
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Publication number: 20150044463Abstract: A fiber is provided that has been thermally drawn from a fiber preform, having a longitudinal-axis length and including at least one core that has a longitudinal core axis parallel to the longitudinal axis and internally disposed to at least one outer fiber cladding material layer along the fiber length. The fiber is fed through a localized heating site having a heating site temperature, T, that is above a melting temperature of the fiber core, with a feed speed, ?f, that melts a portion of the fiber core at the heating site, causing molten droplets to pinch off of fiber core material, one droplet at a time, with a time period of molten droplet formation set by the fiber feed speed, ?f. The fiber is fed through the localized heating site to move the molten droplets out of the heating site and solidify the molten droplets into solid in-fiber particles.Type: ApplicationFiled: March 13, 2014Publication date: February 12, 2015Applicants: University of Central Florida Research Foundation,, Massachusetts Institute of TechnologyInventors: Yoel Fink, Ayman F. Abouraddy, Silvija Gradecak, Benjamin Jean-Baptiste Grena, Alexander Gumennik, Xiaoting Jia, John D. Joannopoulos, Steven G. Johnson, Guillame R. Lestoquoy, Xiangdong Liang, Paul H. Rekemeyer, Matthew J. Smith, Alexander M. Stolyarov, Lei Wei
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Patent number: 8930216Abstract: According to one example embodiment, there is provided a method and an apparatus to evaluate the credit of a healthcare patient. The example embodiment provides methods and computer systems programmed to use multiple variables that are known about a patient prior to a service being rendered to segment the patient population into finer grained groupings. These finer grained groupings allow financial factors, such as a credit score, to be a more accurate predictor. Also, according to another example embodiment, the model is not a generic model for all patients, but the variables and their parameters are specific to a particular healthcare organization's or facility's patient population. This creates a custom model that further enhances its predictiveness.Type: GrantFiled: May 24, 2013Date of Patent: January 6, 2015Assignee: Search America, Inc.Inventors: Steven G. Johnson, Christopher G. Busch
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Publication number: 20140325827Abstract: Techniques and devices are disclosed to provide controlled inter-mode cross-talk in multimode optical waveguides. The structure of a bent multimode optical waveguide can be designed or configured in a way that either substantially minimizes inter-mode cross talk or achieves a desired inter-mode cross-talk. Specific examples based on the disclosed waveguide designs are provided for semiconductor integrated waveguide devices.Type: ApplicationFiled: June 19, 2014Publication date: November 6, 2014Inventors: Michal Lipson, Lucas Heitzmann Gabrielli, Steven G. Johnson, David Liu
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Patent number: 8452611Abstract: According to one example embodiment, there is provided a method and an apparatus to evaluate the credit of a healthcare patient. The example embodiment provides methods and computer systems programmed to use multiple variables that are known about a patient prior to a service being rendered to segment the patient population into finer grained groupings. These finer grained groupings allow financial factors, such as a credit score, to be a more accurate predictor. Also, according to another example embodiment, the model is not a generic model for all patients, but the variables and their parameters are specific to a particular healthcare organization's or facility's patient population. This creates a custom model that further enhances its predictiveness.Type: GrantFiled: February 3, 2010Date of Patent: May 28, 2013Assignee: Search America, Inc.Inventors: Steven G. Johnson, Christopher G. Busch
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Publication number: 20120321262Abstract: In general, in a first aspect the invention features photonic crystal fibers that include a core extending along a waveguide axis, a confinement region extending along the waveguide axis surrounding the core, and a cladding extending along the waveguide axis surrounding the confinement region, wherein the cladding has an asymmetric cross-section.Type: ApplicationFiled: August 27, 2012Publication date: December 20, 2012Inventors: James Goell, Marin Soljacic, Steven A. Jacobs, Tairan Wang, Gokhan Ulu, Burak Temelkuran, Steven G. Johnson
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Patent number: 8285091Abstract: A system for efficient generation of THz radiation is provided that includes a triply-resonant nonlinear photonic resonator coupled to at least one near-infrared (NIR) or optical waveguide and to at least one THz waveguide. The energy traveling through the at least one near-infrared (NIR) or optical waveguide is converted to THz radiation inside the triply-resonant photonic resonator via a nonlinear difference frequency generation (DFG) process.Type: GrantFiled: July 12, 2010Date of Patent: October 9, 2012Assignees: Massachusetts Institute of Technology, President & Fellows of Harvard CollegeInventors: Jorge Bravo-Abad, Ian B. Burgess, John D. Joannopoulos, Steven G. Johnson, Marko Loncar, Murray W. McCutcheon, Alejandro W. Rodriguez, Marin Soljacic, Yinan Zhang
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Patent number: 8280212Abstract: In general, in a first aspect, the invention features photonic crystal fibers that include a core extending along a waveguide axis, a confinement region extending along the waveguide axis surrounding the core, and a cladding extending along the waveguide axis surrounding the confinement region, wherein the cladding has an asymmetric cross-section.Type: GrantFiled: March 2, 2006Date of Patent: October 2, 2012Assignee: OmniGuide, Inc.Inventors: James Goell, Marin Soljacic, Steven A. Jacobs, Tairan Wang, Gokhan Ulu, Burak Temelkuran, Steven G. Johnson