Patents Assigned to California Institute of Technology
  • Patent number: 10693210
    Abstract: A set of antenna geometries for use in integrated arrays at terahertz frequencies are described. Two fabrication techniques to construct such antennas are presented. The first technique uses an advanced laser micro-fabrication, allowing fabricating advanced 3D geometries. The second technique uses photolithographic processes, allowing the fabrication of arrays on a single wafer in parallel.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: June 23, 2020
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Goutam Chattopadhyay, Imran Mehdi, Choonsup Lee, John J. Gill, Cecile D. Jung-Kubiak, Nuria Llombart
  • Patent number: 10693117
    Abstract: Provided are separator systems for electrochemical systems providing electronic, mechanical and chemical properties useful for a variety of applications including electrochemical storage and conversion. Embodiments provide structural, physical and electrostatic attributes useful for managing and controlling dendrite formation and for improving the cycle life and rate capability of electrochemical cells including silicon anode based batteries, air cathode based batteries, redox flow batteries, solid electrolyte based systems, fuel cells, flow batteries and semisolid batteries. Disclosed separators include multilayer, porous geometries supporting excellent ion transport properties, providing a barrier to prevent dendrite initiated mechanical failure, shorting or thermal runaway, or providing improved electrode conductivity and improved electric field uniformity. Disclosed separators include ionically conductive and electronically insulating separators having an electronically and ionically conductive layer.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: June 23, 2020
    Assignee: California Institute of Technology
    Inventor: Farshid Roumi
  • Patent number: 10690227
    Abstract: Systems and methods in accordance with embodiments of the invention implement tailored metallic glass-based strain wave gears and strain wave gear components. In one embodiment, a method of fabricating a flexspline of a strain wave gear includes: forming a MG-based composition into a flexspline using one of a thermoplastic forming technique and a casting technique; where the forming of the MG-based composition results in a formed MG-based material; where the formed flexspline is characterized by: a minimum thickness of greater than approximately 1 mm and a major diameter of less than approximately 4 inches.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: June 23, 2020
    Assignee: California Institute of Technology
    Inventors: Douglas C. Hofmann, Brian H. Wilcox
  • Patent number: 10689613
    Abstract: Provided herein are methods and systems for interfering with viability of bacteria and related compounds and compositions.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: June 23, 2020
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Dianne K. Newman, Ryan C. Hunter
  • Patent number: 10690809
    Abstract: A metasurface is defined by an array of scattering elements having a U shape, where the geometrical dimensions determining the U shape are determined according to the different phase profiles that the metasurface is meant to generate in response to an incident electromagnetic wave. The metasurface, therefore, generates different phase shifts as a function of the incident electromagnetic wave.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: June 23, 2020
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Seyedeh Mahsa Kamali, Ehsan Arbabi, Amir Arbabi, Yu Horie, MohammadSadegh Faraji-Dana, Andrei Faraon
  • Publication number: 20200192179
    Abstract: Optical systems and processes for calibrating and focusing optical systems are described. One embodiment of the invention includes an optical phase array (OPA) and an OPA controller that generates control signals to control phase shifters in the OPA. The OPA controller can calibrate the OPA by performing a plurality of phase sweeps using each of a plurality of different basis masks. Each phase sweep can involve performing a phase sweep across a phase sweep range at a plurality of phase step increments with respect to a first group of phase shifters identified in a basis mask. During the phase sweep, a calibration signal can be measured at each of the plurality of phase step increments and the measurements used to generate calibration phase state information. The calibration phase state information can be utilized to perform functions including (but not limited to) beamforming, focusing, and/or other waveform manipulation and control functions.
    Type: Application
    Filed: December 18, 2019
    Publication date: June 18, 2020
    Applicant: California Institute of Technology
    Inventor: Seyed Ali Hajimiri
  • Patent number: 10684458
    Abstract: Aberration-corrected incoherent imaging methods and systems that can acquire a sequence of coherent images and an incoherent image of a specimen, implement an embedded pupil function recovery process in junction with Fourier ptychographic technique to construct an improved resolution image and pupil function of the imaging system using the sequence of coherent images, determine an optical transfer function based on the estimated pupil function, and remove the aberration from the incoherent image using a deconvolution process to generate an aberration-corrected incoherent image.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: June 16, 2020
    Assignee: California Institute of Technology
    Inventors: Jaebum Chung, Changhuei Yang
  • Publication number: 20200186705
    Abstract: Certain aspects pertain to Fourier ptychographic imaging systems, devices, and methods such as, for example, high NA Fourier ptychographic imaging systems and reflective-mode NA Fourier ptychographic imaging systems.
    Type: Application
    Filed: September 16, 2019
    Publication date: June 11, 2020
    Applicant: California Institute of Technology
    Inventors: Xiaoze Ou, Roarke Horstmeyer, Guoan Zheng, Changhuei Yang
  • Publication number: 20200183339
    Abstract: Systems and methods for learning based control in accordance with embodiments of the invention are illustrated. One embodiment includes a method for training an adaptive controller. The method includes steps for receiving a set of training data that includes several training samples, wherein each training sample includes a state and a true uncertain effect value. The method includes steps for computing an uncertain effect value based on the state, computing a set of one or more losses based on the true uncertain effect value and the computed uncertain effect value, and updating the adaptive controller based on the computed set of losses.
    Type: Application
    Filed: December 10, 2019
    Publication date: June 11, 2020
    Applicant: California Institute of Technology
    Inventors: Guanya Shi, Xichen Shi, Michael O'Connell, Animashree Anandkumar, Yisong Yue, Soon-Jo Chung
  • Patent number: 10675310
    Abstract: Some embodiments include bacterial species for use in treatment of one or more autism spectrum disorder (ASD), and/or schizophrenia symptoms in a subject in need thereof. The subject in need thereof can have a gut microbiota signature characteristic of an adult. The bacterial species can include Bacteroides (e.g., B. fragilis, B. thetaiomtaomicron, and/or B. vulgatus), and/or Enterococcus (e.g., E. faecalis, E. faecium, E. hirae, E. avium, E. durans, E. gallinarum, or E. casseliflavus). Upon treatment, one or more ASD-related behaviors can be improved in the subject.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: June 9, 2020
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Antoinette Bailey, Sarkis K. Mazmanian, Paul H. Patterson
  • Patent number: 10676406
    Abstract: Hopanoids, hopanoids-producing nitrogen-fixing bacteria, and related formulations, systems and methods are described herein. In particular, hopanoids alone or in combination with hopanoid-producing nitrogen-fixing bacteria can be used as biofertilizer to stimulate plant growth and yield with enhanced tolerance to diverse stresses found in plant-microbe symbiotic microenvironments.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: June 9, 2020
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Dianne K. Newman, Gargi Kulkarni, Brittany Jo Belin, Eric Giraud, Antonio Molinaro, Alba Silipo
  • Patent number: 10679763
    Abstract: Systems, devices, and methods of Fourier ptychographic imaging configured for illuminating a specimen being imaged from a plurality of incidence angles, for acquiring variably-illuminated, low-resolution intensity images of the specimen, and for reconstructing a high-resolution image of the specimen by iteratively determining the high resolution image that is self-consistent with the variably-illuminated, low-resolution intensity images, for example, by updating overlapping regions of variably-illuminated, low-resolution intensity images in Fourier space.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: June 9, 2020
    Assignee: California Institute of Technology
    Inventors: Guoan Zheng, Changhuei Yang, Roarke Horstmeyer
  • Patent number: 10680345
    Abstract: An antenna for dual-band or wide-band communication link. The antenna includes a patch array, arranged above a top ground plane, that includes one or more panels, each panel included one or more patch subarrays, and each patch subarray includes single patch elements made from metal. Each patch element includes: a flat rectangular radiation surface element into which a rectangular cutout is formed; an RF power feed point having a cylindrical shape that makes contact to the bottom side of the radiation surface element and feeds through a hole formed in the top ground plane for connection to the RF power; and a structural post having a cylindrical shape that contacts, at one end, the bottom side of the radiation surface element at a region of the radiation surface element where electric surface current is substantially smaller than any other region, and contacts the top ground plane at a second end.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: June 9, 2020
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Nacer E. Chahat, Polly Estabrook, Brant T. Cook
  • Patent number: 10673232
    Abstract: Node controllers in power distribution networks in accordance with embodiments of the invention enable dynamic frequency control. One embodiment includes a node controller comprising a network interface a processor; and a memory containing a frequency control application; and a plurality of node operating parameters describing the operating parameters of a node, where the node is selected from a group consisting of at least one generator node in a power distribution network wherein the processor is configured by the frequency control application to calculate a plurality of updated node operating parameters using a distributed process to determine the updated node operating parameter using the node operating parameters, where the distributed process controls network frequency in the power distribution network; and adjust the node operating parameters.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: June 2, 2020
    Assignee: California Institute of Technology
    Inventors: Changhong Zhao, Enrique Mallada Garcia, Steven H. Low
  • Patent number: 10670782
    Abstract: Metasurfaces comprise an array of pillars in a lattice. The dimensions of the pillars and the spacing are varied to obtain desired optical properties. The dispersionless metasurfaces can focus optical light over a broad wavelength range. Specific dispersion profiles for the metasurfaces can be designed. Gratings can be fabricated having similar properties as the array of pillars. Pillars in the metasurfaces can have different cross-section profiles.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: June 2, 2020
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Ehsan Arbabi, Amir Arbabi, Seyedeh Mahsa Kamali, Yu Horie, Andrei Faraon
  • Patent number: 10673351
    Abstract: A rectifying circuit includes, in part, first and second NMOS transistors, an impedance matching network, and an RF block circuit. The source and gate terminals of the first NMOS transistor respectively receive the ground potential and a biasing voltage. The second NMOS transistor has a gate terminal coupled to the drain terminal of the first NMOS transistor, a drain terminal coupled to the gate terminal of the first NMOS transistor, and a source terminal receiving the ground potential. The impedance matching network is disposed between the antenna and the drain terminals of the first and second NMOS transistors. The RF block circuit is coupled between the drain terminals of the first and second NMOS transistors and the output terminal of the rectifying circuit. The RF block circuit is adapted to prevent the RF signal from flowing into the output terminal of the rectifying circuit.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: June 2, 2020
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Seyed Ali Hajimiri, Behrooz Abiri, Florian Bohn
  • Publication number: 20200166744
    Abstract: Provided is a focusing device that includes a substrate and a plurality of scatterers provided at both sides of the substrate. The scatterers on the both sides of the focusing device may correct geometric aberration, and thus, a field of view (FOV) of the focusing device may be widened.
    Type: Application
    Filed: September 25, 2019
    Publication date: May 28, 2020
    Applicants: SAMSUNG ELECTRONICS CO., LTD., CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Amir ARBABI, Seunghoon HAN, Andrei FARAON, Hyeonsoo PARK
  • Patent number: 10665329
    Abstract: A mass spectrometer including an entrance slit, an energy filter, a momentum filter and a detector array, the entrance slit, energy filter and momentum filter being configured to provide molecular analyte ions to the detector array at a mass resolution of about 20,000 or greater. A method for determining the isotopic composition of an analyte in a sample includes converting the analyte to molecular analyte ions, separating the molecular analyte ions using an entrance slit, separating the molecular analyte ions according to their energy levels, separating the molecular analyte ions according to their momenta, detecting two or more of the molecular analyte ions at a mass resolution of about 20,000 or greater to produce molecular analyte ion data; and analyzing the molecular analyte data to determine the isotopic composition of at least a portion of the analyte.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: May 26, 2020
    Assignees: CALIFORNIA INSTITUTE OF TECHNOLOGY, THERMO FISHER SCIENTIFIC (BREMEN) GMBH
    Inventors: John M. Eiler, Johannes Schwieters
  • Patent number: 10665115
    Abstract: A method, device, framework, and system provide the ability to control an unmanned aerial vehicle (UAV) to avoid obstacle collision. Range data of a real-world scene is acquired using range sensors (that provide depth data to visible objects). The range data is combined into an egospace representation (consisting of pixels in egospace). An apparent size of each of the visible objects is expanded based on a dimension of the UAV. An assigned destination in the real world scene based on world space is received and transformed into egospace coordinates in egospace. A trackable path from the UAV to the assigned destination through egospace that avoids collision with the visible objects (based on the expanded apparent sizes of each of the visible objects) is generated. Inputs that control the UAV to follow the trackable path are identified.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: May 26, 2020
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Anthony T. S. Fragoso, Larry H. Matthies, Roland Brockers, Richard M. Murray
  • Patent number: 10665310
    Abstract: A radiation hardened NAND flash memory data storage device suitable for space flight having a plurality of memory cells configured to store data values in accordance with a predetermined rank modulation scheme and a memory controller that receives a current error count from an error decoder of the data device for one or more data operations of the flash memory device and selects an operating mode for data scrubbing in accordance with the received error count and a program cycles count. Methods of operating the data storage device are also described.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: May 26, 2020
    Assignee: California Institute of Technology
    Inventors: Yue Li, Jehoshua Bruck