Patents by Inventor To Ngai

To Ngai 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: 11724982
    Abstract: The present invention provides a process of producing a trifluoromcthoxylated aryl or trifluoromothoxylated heteroaryl having the structure: wherein A is an aryl or heteroaryl, each with or without substitution; and R1 is —H, -(alkyl), -(alkenyl), -(alkynyl), -(aryl), -(heteroaryl), -(alkylaryl), -(alkylheteroaryl), —NH-(alkyl), —N(alkyl)2, —NH-(alkenyl), —NH-(alkynyl) —NH-(aryl), —NH-(heteroaryl), —O-(alkyl), —O-(alkenyl), —O-(alkynyl), —O-(aryl), —O-(heteroaryl), —S-(alkyl), —S-(alkenyl), —S-(alkynyl), —S-(aryl), or —S-(heteroaryl), comprising: (a) reacting a compound having the structure: with a trifluoromethylating agent in the presence of a base in a first suitable solvent under conditions to produce a compound having the structure: and (b) maintaining the compound produced in step (a) in a second suitable solvent under conditions sufficient to produce the trifluoromethoxylated aryl or trifluormethoxylated heteroaryl having the structure:
    Type: Grant
    Filed: May 6, 2020
    Date of Patent: August 15, 2023
    Assignee: THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK
    Inventors: Ming-Yu Ngai, Katarzyna N. Hojczyk
  • Publication number: 20230253882
    Abstract: Circuits and methods for reducing lagging responses of a power converter to changes in circuit voltages or current, over-shoot/under-shoot when a target output voltage changes faster than the power converter's response, and open loop conditions. Embodiments include scanning a feedback voltage from a load powered by a voltage output by a power converter controlled by a PWM control signal; detecting an under-regulation condition; and, while the under-regulation condition is detected, increasing a clock signal rate to a counter outputting a count value usable to generate the PWM control signal. Embodiments include comparing a target output voltage to a signal representative of an output voltage of the power converter; indicating an under-shoot or over-shoot condition if the voltage difference exceeds a corresponding offset value; and limiting the range of values for an M-bit count value used to generate the PWM control signal to mitigate the under-shoot or over-shoot condition.
    Type: Application
    Filed: February 22, 2023
    Publication date: August 10, 2023
    Inventors: Brian Zanchi, Gregory Szczeszynski, Aichen Low, Chak Sang Ngai
  • Patent number: 11718932
    Abstract: The present invention relates to a denim-like fabric and jeans. In some embodiments, the invention relates to a denim-like knitted fabric.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: August 8, 2023
    Assignee: CRYSTAL APPAREL LIMITED
    Inventor: Ngai Man Lai
  • Patent number: 11723283
    Abstract: Embodiments of the present disclosure generally include spin-orbit torque magnetoresistive random-access memory (SOT-MRAM) devices and methods of manufacture thereof. The SOT-MRAM devices described herein include an SOT layer laterally aligned with a magnetic tunnel junction (MTJ) stack and formed over a trench in an interconnect. Thus, the presence of the SOT layer outside the area of the MTJ stack is eliminated, and electric current passes from the interconnect to the SOT layer by SOT-interconnect overlap. The devices and methods described herein reduce the formation of shunting current and enable the MTJ to self-align with the SOT layer in a single etching process.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: August 8, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Minrui Yu, Wenhui Wang, Jaesoo Ahn, Jong Mun Kim, Sahil Patel, Lin Xue, Chando Park, Mahendra Pakala, Chentsau Chris Ying, Huixiong Dai, Christopher S. Ngai
  • Publication number: 20230242418
    Abstract: Systems and methods of performing temperature swing solvent extraction (TSSE) descaling of produced water and desalination of high-salinity brines, e.g., those having a total dissolved solids (TDS) greater than about 250,000 ppm are capable of producing descaled water products including less than about 5% weight percent TDS. The brine/produced water feedstreams and combined with a solvent having temperature-dependent water solubility at a temperature TL. Water is extracted from the feedstream into the solvent to form a water-in-solvent extract component and a raffinate component, from which a solid phase can be precipitated as more water is portioned in the solvent and basicity increases. Heating of the water-in-solvent extract component reduces the solubility of the water therein, producing a biphasic mixture of dewatered solvent and descaled water that can be separated.
    Type: Application
    Filed: April 6, 2023
    Publication date: August 3, 2023
    Applicant: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
    Inventors: Ngai Yin YIP, Chanhee BOO, Kinnari SHAH, Ian BILLINGE, Robert WINTON, Eliza DACH
  • Publication number: 20230243706
    Abstract: Example embodiments include an apparatus comprising a first printed circuit board (PCB) having an AC-DC power supply thereon and a second PCB having a processor thereon. The first and second BPBs are substantially parallel to one another. A first thermal barrier extends between the first and second PCB. The processor and the power supply are both on a first side of the first thermal barrier. A chamber on a second side of the first thermal barrier opposite the first side. The chamber is at least partly enclosed by a second thermal barrier and has at least one opening for fluid communication with an ambient environment. A temperature sensor is provided in the chamber. In some embodiments, an LED is provided on one of the PCBs, and a light-reflecting silkscreened pattern is provided on the PCB near the LED to increase light output of the apparatus.
    Type: Application
    Filed: January 26, 2023
    Publication date: August 3, 2023
    Inventors: Daniel Simpkins, Charles Gritton, Darryl Harlan Ngai, Friedrich G. Geck, Cynthia E. Cantrell
  • Patent number: 11713597
    Abstract: Personal restraints are described, including a user-accessible button that can be pushed in sliding a lock bar into a double lock position.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: August 1, 2023
    Assignee: Armament Systems and Procedures, Inc.
    Inventors: Kevin Parsons, Siu Ngai Wang
  • Publication number: 20230240013
    Abstract: The invention provides a card substrate for carrying a chip module, the card substrate has a first surface and a second surface opposite to the first surface, and a concave portion for accommodating the chip module, the concave portion includes a first concave portion, and a second concave portion further recessed from a bottom wall of the first concave portion, in a left-right direction, a size of the second concave portion gradually narrows from a middle to both sides, and in an up-down direction, the size of the second concave portion gradually narrows from the middle to both sides. The card substrate of the invention can provide good support and protect for the chip module.
    Type: Application
    Filed: March 30, 2023
    Publication date: July 27, 2023
    Inventors: Ngai Man POON, Rong ZHANG, Yiqi ZHANG
  • Publication number: 20230229089
    Abstract: Methods and apparatuses for minimizing line edge/width roughness in lines formed by photolithography are provided. In one example, a method of processing a substrate includes applying a photoresist layer comprising a photoacid generator to on a multi-layer disposed on a substrate, wherein the multi-layer comprises an underlayer formed from an organic material, inorganic material, or a mixture of organic and inorganic materials, exposing a first portion of the photoresist layer unprotected by a photomask to a radiation light in a lithographic exposure process, and applying an electric field or a magnetic field to alter movement of photoacid generated from the photoacid generator substantially in a vertical direction.
    Type: Application
    Filed: March 23, 2023
    Publication date: July 20, 2023
    Applicant: Applied Materials, Inc.
    Inventors: Huixiong DAI, Mangesh Ashok BANGAR, Srinivas D. NEMANI, Ellie Y. YIEH, Steven Hiloong WELCH, Christopher S. NGAI
  • Publication number: 20230216535
    Abstract: In one implementation, a wireless communication device includes a first transceiver configured to generate a transmit signal and a band pass filter (BPF) select circuit configured to filter the transmit signal by a one of a first BPF with a relatively high-frequency passband or a second BPF with a relatively low-frequency passband. The wireless communication device includes a second transceiver configured to receive a received signal filtered by the other one of the first or second BPF. Having the transmit and received signals filtered by two different passband filters improves the isolation between the transmitter and receiver. Another implementation configures the first transceiver to include its own set of first and second BPFs, and the second transceiver to also include its own first and second BPFs.
    Type: Application
    Filed: July 14, 2020
    Publication date: July 6, 2023
    Inventors: Shaofeng WANG, Rongliang YANG, Devdutt PATNAIK, Rohit TRIPATHI, Francis Ming-Meng NGAI
  • Patent number: 11692307
    Abstract: A method for preparing a novel waterborne polyurethane foam layer for synthetic leather is disclosed. The method includes first preparing a charged cellulose nanofiber by using a wood pulp as a raw material; meanwhile, subjecting a polyisocyanate, a macromolecular diol, a hydrophilic chain extender and a small molecular chain extender to a polyaddition reaction and an acid-base neutralization reaction in sequence, to obtain a cationic or anionic waterborne polyurethane; adding the charged cellulose nanofiber and a certain amount of a crosslinking agent to the oppositely charged ionic waterborne polyurethane emulsion, stirring the resulting mixture, forming a bimolecular layer at the gas/liquid interface by a self-assembly of the cellulose nanofiber and waterborne polyurethane nanoparticles through electrostatic interactions to obtain a stable Pickering foam; using the stable Pickering foam as a template, drying and solidifying to obtain the waterborne polyurethane foam layer for synthetic leather.
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: July 4, 2023
    Assignee: SICHUAN UNIVERSITY
    Inventors: Wei Lin, Jianhui Wu, To Ngai, Chunhua Wang, Long Zhang
  • Patent number: 11687831
    Abstract: An approach includes receiving a machine learning processing job, executing the machine learning processing job using parallel processing of multiple output pixels each cycle by walking data across processing elements with broadcast weights within regions and executing parallel multiplication operations, and generating an output indicating whether the machine learning processing job was successful or failed. In some embodiments, a schedule of actions is generated for respective machine learning processing jobs. The schedule of actions may include any of a plurality of shift operations in a many to many arrangement or a one to many arrangement, shifting data across region boundaries, fetching data and weights from a memory and distribution thereof to a plurality of regions (e.g., weights are distributed to respective weight memories which subsequently broadcasts those weights in a specified order based on a schedule of actions, and where data is distributed to respective processing elements).
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: June 27, 2023
    Assignee: Cadence Design Systems, Inc.
    Inventors: Ngai Ngai William Hung, Dhiraj Goswami, Michael Patrick Zimmer, Yong Liu
  • Publication number: 20230198296
    Abstract: A device for electrically connecting a direct current (DC) microgrid to a DC bus of an electrical power network, which is operating at a higher voltage than the microgrid, comprises a pair of electrical port each configured for connection with either the DC bus or the microgrid; a DC-DC power converter operatively interconnecting the electrical ports for power transmission therebetween from a first voltage at the port connected to the DC bus to a lower second voltage at the port connected to the DC microgrid; a DC circuit breaker connected between the DC-DC power converter and one of the electrical ports for selectively conducting current therebetween; and a controller which is configured to communicate with constituent devices in the DC microgrid as well as a control center representative of the electrical power network in order to exchange information about electrical energy consumption in the DC microgrid and the larger network.
    Type: Application
    Filed: May 4, 2021
    Publication date: June 22, 2023
    Inventors: Ngai Man Ho, Dong Li, King Man Siu
  • Publication number: 20230186702
    Abstract: A job site security system contains a wireless communications node and a device such as a tool, a battery, a charger, etc., which contains a controller. Each tool has a locked state and an unlocked state as determined by the controller. Each tool is (initially) in the locked state. When the wireless communications node transmits a signal to the device the controller changes the locked state to the unlocked state allowing the device to be used. A method for securing a job site is also provided.
    Type: Application
    Filed: February 10, 2023
    Publication date: June 15, 2023
    Inventors: Hei Man Raymond Lee, Ngai Cheung
  • Publication number: 20230181091
    Abstract: Methods and systems useful for machine learning assisted imaging and detection of peripheral nerves comprising reflectance imaging spectroscopy. The method can be conducted label-free and in real-time.
    Type: Application
    Filed: December 5, 2022
    Publication date: June 15, 2023
    Inventors: Jung Sun YOO, Ngai Nick Alex WONG
  • Patent number: 11676068
    Abstract: An approach includes a method, product, and apparatus for dynamically removing sparse data on a pixel by pixel basis. In some embodiments, a machine learning processing job is received. The machine learning processing job is then executed on a pixel by pixel basis by selecting non-zero data values for input into a systolic array, wherein sparse data is not selected for input into the systolic array. Subsequently, a message is generated that provides an indication of whether the execution completed successfully. In some embodiments, the machine learning processing job comprises at least a plurality of multiply and accumulate operations. In some embodiments, at least one data value equal to zero for the machine learning processing job is not input into a systolic array. In some embodiments, a plurality of weights are input into a plurality of columns for each cycle.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: June 13, 2023
    Assignee: Cadence Design Systems, Inc.
    Inventors: Michael Patrick Zimmer, Ngai Ngai William Hung, Yong Liu, Dhiraj Goswami
  • Publication number: 20230175190
    Abstract: The subject disclosure relates to a clothing washing system, an apparatus for generating nano microbubble ionic water, and a method of washing clothes. The clothing washing system includes an adjustment unit, an electrolysis unit, a first fluid circulation unit, a nano microbubble generation unit, a second fluid circulation unit, and a cleaning unit. The electrolysis unit is in fluid communication with the adjustment unit. The first fluid circulation unit is connected to the adjustment unit and the electrolysis unit. The nano microbubble generation unit is in fluid communication with the adjustment unit. The second fluid circulation unit is connected to the adjustment unit and the nano microbubble generation unit. The cleaning unit is in fluid communication with the adjustment unit.
    Type: Application
    Filed: April 11, 2022
    Publication date: June 8, 2023
    Inventors: HUNG-TU LU, TAK NGAI SAMUEL SI
  • Publication number: 20230174391
    Abstract: Systems and methods of performing temperature swing solvent extraction (TSSE) descaling of produced water and desalination of high-salinity brines, e.g., those having a total dissolved solids (TDS) greater than about 250,000 ppm are capable of producing descaled water products including less than about 5% weight percent TDS. The brine/produced water feedstreams and combined with a solvent having temperature-dependent water solubility at a temperature TL. Water is extracted from the feedstream into the solvent to form a water-in-solvent extract component and a raffinate component, from which a solid phase can be precipitated as more water is portioned in the solvent and basicity increases. Heating of the water-in-solvent extract component reduces the solubility of the water therein, producing a biphasic mixture of dewatered solvent and descaled water that can be separated.
    Type: Application
    Filed: June 15, 2021
    Publication date: June 8, 2023
    Applicant: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
    Inventors: Ngai Yin YIP, Chanhee BOO, Kinnari SHAH, Ian BILLINGE, Robert WINTON, Eliza DACH
  • Publication number: 20230180170
    Abstract: Methods, systems, and devices for wireless communications are described in which a user equipment (UE) may use multiple subscriber identification modules (SIMs) in dual-SIM dual-active (DSDA) communications. A DSDA UE may support identification of a set of available radio frequency (RF) resources for communications, where the set of available RF resources include multiple RF components (e.g., transmit/receive antennas), RF baseband resources (e.g., processing resources that support processing and decoding of transmissions), or combinations thereof. The set of available resources may be shared between multiple SIMs, and the UE may identify different resource partitions of the set of available resources, with different resource partitions used to provide concurrent communications of both the first SIM and the second SIM based on parameters of each SIM.
    Type: Application
    Filed: December 3, 2021
    Publication date: June 8, 2023
    Inventors: Mutaz Zuhier Afif Shukair, Qingxin Chen, Francis Ming-Meng Ngai, Reza Shahidi, Cheol Hee Park, Bhupesh Manoharlal Umatt
  • Publication number: 20230171303
    Abstract: Implementations are disclosed for dynamically allocating aspects of platform-independent machine-learning based agricultural state machines among edge and cloud computing resources. In various implementations, a GUI may include a working canvas on which graphical elements corresponding to platform-independent logical routines are manipulable to define a platform-independent agricultural state machine. Some of the platform-independent logical routines may include logical operations that process agricultural data using phenotyping machine learning model(s). Edge computing resource(s) available to a user for which the agricultural state machine is to be implemented may be identified. Constraint(s) imposed by the user on implementation of the agricultural state machine may be ascertained.
    Type: Application
    Filed: December 1, 2021
    Publication date: June 1, 2023
    Inventors: Yueqi Li, Alexander Ngai