Patents by Inventor Jonathan Liu

Jonathan Liu 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: 11957570
    Abstract: An ophthalmic device includes an optic including an optic axis and a closed-loop haptic structure coupled to the optic via a frame surrounding the optic, the closed-loop haptic structure including a closed loop extending from first and second attachment points to the frame. The closed loop includes a first hinge and a second hinge. The first hinge has a first section having a first component extending in a first angular direction, a second section having a second component extending in a second angular direction opposite to the first angular direction, and a first connecting section between the first section and the second section. The second hinge has a third section having a third component extending in the second angular direction, a fourth section having a fourth component extending in the first angular direction, the fourth section being connected to the second section to form the closed loop.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: April 16, 2024
    Assignee: Alcon Inc.
    Inventors: Sung Kyu Lee, Stephen John Collins, Ian Michael Marks, Jonathan David Mccann, Jian Liu, Douglas Brent Wensrich, Stephen J. Van Noy
  • Patent number: 11947062
    Abstract: Velocity tomography using time lags of wave equation migration is disclosed. Seismic tomography is a technique for imaging the subsurface of the Earth with seismic waves by generated a migration velocity model from a multitude of observations using combinations of source and receiver locations. The migration velocity model may be updated in order to reduce depth differences of reflection events (also called residual depth errors (RDE)). Direct measurement of RDE may be difficult in certain complex subsurface areas. In such areas, the RDE may be reconstructed based on time lags of wave equation migration and then used to update the migration velocity model. In particular, the RDE may be directly reconstructed from the time lags of wave equation migration, such as based on a direct relation between RDE and the time lags.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: April 2, 2024
    Assignee: ExxonMobil Technology and Engineering Company
    Inventor: Jonathan Liu
  • Publication number: 20240100587
    Abstract: A self-piercing riveting (SPR) system includes a top sheet and a bottom sheet. The top sheet is layered above the bottom sheet and are disposed between a die and a blank holder. The SPR system further includes a barrier disposed between the bottom sheet and the die, wherein the barrier is configured to reduce stress concentrations during formation of a joint between the top sheet and the bottom sheet. The barrier may has a thickness between 0.8 mm and 1.0 mm and is made from a cold formed or a dual phase steel alloy.
    Type: Application
    Filed: December 5, 2023
    Publication date: March 28, 2024
    Applicant: Magnesium Products of America Inc.
    Inventors: Yuchao Liu, Jonathan Patrick Weiler, Gerry Wang
  • Publication number: 20240100566
    Abstract: An ultrasound transducer device made by a process that includes the steps of forming depositing a first layer on a substrate, depositing a second layer on the first layer, patterning the second layer at a region corresponding to a location of a transducer cavity, depositing a third layer that refills regions created by patterning the second layer, planarizing the third layer to a top surface of the second layer, removing the second layer, conformally depositing a fourth layer over the first layer and the third layer, defining the transducer cavity in a support layer formed over the fourth layer; and bonding a membrane to the support layer.
    Type: Application
    Filed: December 6, 2023
    Publication date: March 28, 2024
    Applicant: BFLY OPERATIONS, INC.
    Inventors: Lingyun Miao, Keith G. Fife, Jianwei Liu, Jonathan M. Rothberg
  • Patent number: 11934612
    Abstract: An input device that includes multiple electrodes disposed in a sensing region of the input device and a sensing circuit coupled to a first electrode and configured to detect an input object proximate the sensing region. The sensing circuit includes an amplifier having an inverting input coupled to the first electrode, a non-inverting input coupled to a drive signal, and an output generating a resulting signal. The sensing circuit includes a feedback capacitor coupled between the output and the inverting input of the amplifier. The drive signal comprises a first sinusoidal signal having a first operating frequency and a second sinusoidal signal having a second operating frequency. The resulting signal is determined by the feedback capacitor and a capacitance of the first electrode caused by the input object. The resulting signal generates a sensing signal on the first electrode.
    Type: Grant
    Filed: August 30, 2022
    Date of Patent: March 19, 2024
    Assignee: Synaptics Incorporated
    Inventors: Guozhong Shen, Chunbo Liu, Jonathan Ku
  • Patent number: 11931483
    Abstract: Inserts can be formed with elution characteristics to cause the inserts to elute an antimicrobial agent when subject to a fluid within a medical device. An insert can be formed with a desired geometry to allow the insert to be compression fit within a medical device to prevent the insert from moving or becoming dislodged once inserted into the medical device. The material may also be hygroscopic so that the insert swells when subject to a fluid thereby enhancing the compression fit of the device within the medical device. In some cases, the material can be reinforced using an internal structure. Inserts can be formed in many ways including by casting, thermoforming, or extrusion. In some cases, the inserts can be formed using a peel-away sleeve or material. The peel-away sleeves can be formed of a non-sticky material which facilitates removal of the inserts once the inserts have cured.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: March 19, 2024
    Assignee: Becton, Dickinson and Company
    Inventors: Siddarth K. Shevgoor, Jonathan Karl Burkholz, Huibin Liu, Yiping Ma, Ming Zhou
  • Publication number: 20240082841
    Abstract: Glass articles including a glass laminate substrate having a plurality of flow channels formed therein are provided. The glass laminate substrate includes a first glass layer and a second glass layer fused together. In various embodiments, at least 80% of a total area of a floor of each of the flow channels has a local surface flatness of less than 100 nm/mm2, measured along a length and width of the floor of each of the plurality of flow channels Such glass articles are manufactured using a method including contacting a first portion of the first glass layer with a first etchant for a first etch time to at least partially form flow channels in the glass substrate and contacting the flow channels with a second etchant for a second etch time to flatten a floor of each of the flow channels.
    Type: Application
    Filed: October 13, 2020
    Publication date: March 14, 2024
    Inventors: Jonathan Paul Icenhower, Jin Su Kim, Xinyuan Liu
  • Patent number: 11920167
    Abstract: The present invention provides engineered glycosyltransferase (GT) enzymes, polypeptides having GT activity, and polynucleotides encoding these enzymes, as well as vectors and host cells comprising these polynucleotides and polypeptides. The present invention provides engineered sucrose synthase (SuS) enzymes, polypeptides having SuS activity, and polynucleotides encoding these enzymes, as well as vectors and host cells comprising these polynucleotides and polypeptides. The present invention also provides compositions comprising the GT enzymes and methods of using the engineered GT enzymes to make products with ?-glucose linkages. The present invention further provides compositions and methods for the production of rebaudiosides (e.g., rebaudioside M, rebaudioside A, rebaudioside I, and rebaudioside D). The present invention also provides compositions comprising the SuS enzymes and methods of using them. Methods for producing GT and SuS enzymes are also provided.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: March 5, 2024
    Assignee: TATE & LYLE SOLUTIONS USA LLC
    Inventors: Jonathan Vroom, Stephanie Sue Galanie, Nikki Dellas, Jack Liang, Joyce Liu, David Entwistle, Courtney Dianne Moffett
  • Publication number: 20240069667
    Abstract: An input device that includes multiple electrodes disposed in a sensing region of the input device and a sensing circuit coupled to a first electrode and configured to detect an input object proximate the sensing region. The sensing circuit includes an amplifier having an inverting input coupled to the first electrode, a non-inverting input coupled to a drive signal, and an output generating a resulting signal. The sensing circuit includes a feedback capacitor coupled between the output and the inverting input of the amplifier. The drive signal comprises a first sinusoidal signal having a first operating frequency and a second sinusoidal signal having a second operating frequency. The resulting signal is determined by the feedback capacitor and a capacitance of the first electrode caused by the input object. The resulting signal generates a sensing signal on the first electrode.
    Type: Application
    Filed: August 30, 2022
    Publication date: February 29, 2024
    Applicant: Synaptics Incorporated
    Inventors: Guozhong Shen, Chunbo Liu, Jonathan Ku
  • Publication number: 20230016248
    Abstract: A modular mask including a first module including a frame having two or more openings, and an attaching mechanism lining one or more edges of the two or more openings; and a second module including: a mask body having a first attaching element allowing the attaching mechanism to temporarily hold the mask body in place completely covering a first opening of the two or more openings, and a filter component having a second attaching element allowing the attaching mechanism to temporarily hold the filter component in place completely covering a second opening of the two or more openings.
    Type: Application
    Filed: July 14, 2021
    Publication date: January 19, 2023
    Inventors: Jerry ZHANG, Gwyneth ALEXANDER, Saardhak BHRUGUBANDA, Kaitlyn Grace CALABRESI, Zan Zafar CHAUDHRY, Benjamin DUBNER, Jason FAN, Eric GUAN, Ann JIANG, Elizabeth KIM, Rachel LI, Jonathan LIU, Xingjian LU, Shubhan MATHUR, Rebecca Irene MOSIER, Kate SAPERSTEIN, Abdus Sabour SHAIK, Rahul SWAMINATHAN, Nina Marie TEDESCHI, Kesavan VENKATESH, Eesha VERMA, Chen Chia WANG, Jeremy WANG, Daniel ZHANG, Asimina ZOITOU
  • Publication number: 20230000346
    Abstract: A slit lamp microscope of an aspect example includes a scanner and a data processor. The scanner is configured to scan an anterior segment of a subject's eye with slit light to collect a plurality of cross sectional images. The data processor is configured to generate opacity distribution information that represents a distribution of an opaque area in a crystalline lens, based on the plurality of cross sectional images collected by the scanner.
    Type: Application
    Filed: August 31, 2020
    Publication date: January 5, 2023
    Applicant: Topcon Corporation
    Inventors: Jonathan LIU, Hitoshi SHIMIZU, Hisashi TSUKADA
  • Patent number: 11481897
    Abstract: Methods and systems for angiographic imaging with optical coherence tomography (OCT) are described using ratio-based and angiographic deviation based calculations. In using these calculations to determine motion, arbitrary interframe permutations may be used, post- calculated, non-linear results for projection visualization may be averaged, poor matches may be eliminated on an A-line by A-line basis, windowing functions may be used to improve results, partial spectrums may be used when capturing data, and a minimum intensity threshold may be used for determining which pixels to use.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: October 25, 2022
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Charles A. Reisman, Zhenguo Wang, Atsushi Kubota, Jonathan Liu
  • Patent number: 11439301
    Abstract: An ophthalmologic information processing apparatus includes an acquisition unit, a tissue specifying unit, and a specifying unit. The acquisition unit is configured to acquire a tomographic image of a subject's eye. The tissue specifying unit is configured to acquire first shape data representing shape of a tissue of the subject's eye by performing segmentation processing on each of a plurality of tomographic images acquired by the acquisition unit. The specifying unit is configured to obtain second shape data representing shape of the tissue based on the plurality of first shape data acquired by the tissue specifying unit.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: September 13, 2022
    Assignee: TOPCON CORPORATION
    Inventors: Toshihiro Mino, Jonathan Liu
  • Publication number: 20220280036
    Abstract: A slit lamp microscope of some aspect examples includes a scanner and a rendering processor. The scanner is configured to scan an anterior segment of a subject's eye with slit light to collect a plurality of cross sectional images. The rendering processor is configured to apply rendering to a three dimensional image created from the plurality of cross sectional images.
    Type: Application
    Filed: June 2, 2020
    Publication date: September 8, 2022
    Applicant: Topcon Corporation
    Inventors: Jonathan LIU, Hitoshi SHIMIZU, Hisashi TSUKADA
  • Publication number: 20210407088
    Abstract: A multimodal imaging system and method is capable of taking fundus images, automatically identifying regions of interest (ROIs) of the eye from the fundus images, and performing OCT imaging in the identified ROIs, where the OCT images can provide clinically relevant information for screening purposes. By automatically identifying the ROIs, expert intervention is not required to perform specialized OCT imaging and thus, such imaging and analysis can be provided at more facilities and for more subjects for a lower cost.
    Type: Application
    Filed: September 13, 2021
    Publication date: December 30, 2021
    Inventors: Zaixing Mao, Zhenguo Wang, Kinpui Chan, Jonathan Liu, Jongsik Kim
  • Publication number: 20210338076
    Abstract: An ophthalmic apparatus includes an acquiring unit, an OCT unit, an analyzer, and a calculator. The acquiring unit is configured to acquire a dioptric power in a first region including a fovea of a subject's eye. The OCT unit is configured to acquire OCT data of a fundus of the subject's eye using optical coherence tomography. The analyzer is configured to specify a shape of the fundus by analyzing the OCT data. The calculator is configured to calculate a dioptric power in a peripheral region of the first region of the fundus based on the dioptric power in the first region and the shape of the fundus.
    Type: Application
    Filed: July 14, 2021
    Publication date: November 4, 2021
    Applicant: Topcon Corporation
    Inventors: Masashi NAKAJIMA, Jonathan LIU, Yasufumi FUKUMA
  • Patent number: 11141060
    Abstract: An ophthalmologic apparatus of embodiments includes an OCT unit, an acquisition unit, and a specifying unit. The OCT unit is configured to acquire a tomographic image of a subject's eye using optical coherence tomography. The acquisition unit is configured to acquire a front image of the subject's eye. The specifying unit is configured to specify shape of a tissue of the subject's eye based on the tomographic image acquired by the OCT unit and the front image acquired by the acquisition unit.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: October 12, 2021
    Assignee: TOPCON CORPORATION
    Inventors: Toshihiro Mino, Jonathan Liu
  • Patent number: 11134836
    Abstract: An ophthalmologic information processing apparatus includes an acquisition unit, a tissue specifying unit, and a specifying unit. The acquisition unit is configured to acquire a tomographic image of a subject's eye formed based on scan data acquired using an optical system for performing optical coherence tomography on the subject's eye. The tissue specifying unit is configured to acquire first shape data representing shape of a tissue of the subject's eye by performing segmentation processing on the tomographic image. The specifying unit is configured to specify a low sensitivity component having a small variation with respect to a change in a position of the optical system with respect to the subject's eye from the first shape data, and to obtain second shape data representing shape of the tissue based on the specified low sensitivity component.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: October 5, 2021
    Assignee: TOPCON CORPORATION
    Inventors: Toshihiro Mino, Jonathan Liu
  • Patent number: 11132797
    Abstract: A multimodal imaging system and method is capable of taking fundus images, automatically identifying regions of interest (ROIs) of the eye from the fundus images, and performing OCT imaging in the identified ROIs, where the OCT images can provide clinically relevant information for screening purposes. By automatically identifying the ROIs, expert intervention is not required to perform specialized OCT imaging and thus, such imaging and analysis can be provided at more facilities and for more subjects for a lower cost.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: September 28, 2021
    Assignee: TOPCON CORPORATION
    Inventors: Zaixing Mao, Zhenguo Wang, Kinpui Chan, Jonathan Liu, Jongsik Kim
  • Publication number: 20210255345
    Abstract: Velocity tomography using time lags of wave equation migration is disclosed. Seismic tomography is a technique for imaging the subsurface of the Earth with seismic waves by generated a migration velocity model from a multitude of observations using combinations of source and receiver locations. The migration velocity model may be updated in order to reduce depth differences of reflection events (also called residual depth errors (RDE)). Direct measurement of RDE may be difficult in certain complex subsurface areas. In such areas, the RDE may be reconstructed based on time lags of wave equation migration and then used to update the migration velocity model. In particular, the RDE may be directly reconstructed from the time lags of wave equation migration, such as based on a direct relation between RDE and the time lags.
    Type: Application
    Filed: December 15, 2020
    Publication date: August 19, 2021
    Inventor: Jonathan Liu