Patents by Inventor Stephen Hwang

Stephen Hwang 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: 11969069
    Abstract: A cosmetic compact for solid or semi solid cosmetic product. The cosmetic compact comprising a lid and a base assembly, wherein the base assembly comprising a base, a frame, a shock absorbing member, and at least one cosmetic pan. The shock absorbing member is disposed in a cavity of the base. The shock absorbing member is coupled to the base and is coupled to the at least one cosmetic pan such that a shock imparted on the cosmetic compact is isolated from the at least one cosmetic pan. The shock absorbing member is deformable and comprises a hollow tubular body defining a central bore extending between an upper-flange and a lower-flange of the shock absorbing member.
    Type: Grant
    Filed: November 14, 2022
    Date of Patent: April 30, 2024
    Assignee: CRYSTAL INTERNATIONAL (GROUP)
    Inventors: Roger Hwang, Stephen M. Fisher, II, William Lloyd Alusitz
  • Publication number: 20240115144
    Abstract: A system for measuring at least one physiological parameter includes a wearable device configured to be secured to a subject's foot and a camera configured to captures images of the subject. An electronic device may be in communication with the system and can display information relating to physiological data and/or images collected by the system.
    Type: Application
    Filed: December 11, 2023
    Publication date: April 11, 2024
    Inventors: Stephen Scruggs, James Ford Schramm, Mitchell Lloyd Ambrosini, Chad A. DeJong, Ammar Al-Ali, Richard Priddell, Sujin Hwang, Prianjali Kapur, Manuela Bertagia, Lara Garreffa, Emma Constant, Fabiola D’Ettorre, Xavier Blanc Baudriller
  • Patent number: 9659757
    Abstract: Apparatus and methods are provided for monitoring a pulsed RF bias signal applied to a chuck in a processing chamber. One method includes operations for detecting voltage values of individual pulses of the pulsed RF bias voltage, and for determining the time for sampling the value of each individual detected pulse. At the sampling time for each pulse, a particular voltage value of the respective individual detected pulse is sampled and the particular voltage value is held. Each particular voltage value represents a characteristic peak-to-peak voltage value of each individual detected pulse. A feedback signal representing the characteristic peak-to-peak voltage value for a voltage envelope of one of the individual detected pulses is generated, and the voltage of the pulsed RF bias voltage signal applied to the chuck is adjusted according to a difference between the feedback signal and a desired voltage value of the pulsed RF bias voltage signal.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: May 23, 2017
    Assignee: Lam Research Corporation
    Inventors: Andras Kuthi, Stephen Hwang, James C. Vetter, Greg Eilenstine, Rongping Wang, Tuan Ngo
  • Publication number: 20130050892
    Abstract: Apparatus and methods are provided for monitoring a pulsed RF bias signal applied to a chuck in a processing chamber. One method includes operations for detecting voltage values of individual pulses of the pulsed RF bias voltage, and for determining the time for sampling the value of each individual detected pulse. At the sampling time for each pulse, a particular voltage value of the respective individual detected pulse is sampled and the particular voltage value is held. Each particular voltage value represents a characteristic peak-to-peak voltage value of each individual detected pulse. A feedback signal representing the characteristic peak-to-peak voltage value for a voltage envelope of one of the individual detected pulses is generated, and the voltage of the pulsed RF bias voltage signal applied to the chuck is adjusted according to a difference between the feedback signal and a desired voltage value of the pulsed RF bias voltage signal.
    Type: Application
    Filed: October 29, 2012
    Publication date: February 28, 2013
    Inventors: Andras Kuthi, Stephen Hwang, James C. Vetter, Greg Eilenstine, Rongping Wang, Tuan Ngo
  • Patent number: 8303763
    Abstract: Apparatus and methods are provided for monitoring a pulsed RF bias signal applied to a chuck in a processing chamber. One method includes operations for detecting voltage values of individual pulses of the pulsed RF bias voltage, and for determining the time for sampling the value of each individual detected pulse. At the sampling time for each pulse, a particular voltage value of the respective individual detected pulse is sampled and the particular voltage value is held. Each particular voltage value represents a characteristic peak-to-peak voltage value of each individual detected pulse. A feedback signal representing the characteristic peak-to-peak voltage value for a voltage envelope of one of the individual detected pulses is generated, and the voltage of the pulsed RF bias voltage signal applied to the chuck is adjusted according to a difference between the feedback signal and a desired voltage value of the pulsed RF bias voltage signal.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: November 6, 2012
    Assignee: Lam Research Corporation
    Inventors: Andras Kuthi, Stephen Hwang, James C. Vetter, Greg Eilenstine, Rongping Wang, Tuan Ngo
  • Publication number: 20120206127
    Abstract: Apparatus and methods are provided for monitoring a pulsed RF bias signal applied to a chuck in a processing chamber. One method includes operations for detecting voltage values of individual pulses of the pulsed RF bias voltage, and for determining the time for sampling the value of each individual detected pulse. At the sampling time for each pulse, a particular voltage value of the respective individual detected pulse is sampled and the particular voltage value is held. Each particular voltage value represents a characteristic peak-to-peak voltage value of each individual detected pulse. A feedback signal representing the characteristic peak-to-peak voltage value for a voltage envelope of one of the individual detected pulses is generated, and the voltage of the pulsed RF bias voltage signal applied to the chuck is adjusted according to a difference between the feedback signal and a desired voltage value of the pulsed RF bias voltage signal.
    Type: Application
    Filed: April 25, 2012
    Publication date: August 16, 2012
    Inventors: Andras Kuthi, Stephen Hwang, James C. Vetter, Greg Eilenstine, Rongping Wang, Tuan Ngo
  • Patent number: 8192576
    Abstract: Apparatus and methods are provided to detect and control a voltage potential applied in a plasma chamber for processing a semiconductor wafer. The plasma chamber includes circuitry for monitoring and adjusting a pulsed RF bias voltage signal to be applied to a chuck in the plasma chamber, where the chuck is configured to mount the wafer for processing. The circuitry includes an RF bias voltage detector for detecting individual pulses of the pulsed RF bias voltage signal applied to the chuck. A timing circuit is provided for determining a time for sampling each of the individual detected pulses and a sample and hold circuit.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: June 5, 2012
    Assignee: Lam Research Corporation
    Inventors: Andras Kuthi, Stephen Hwang, James C. Vetter, Greg Eilenstine, Rongping Wang, Tuan Ngo
  • Publication number: 20100315064
    Abstract: Apparatus and methods are provided to detect and control a voltage potential applied in a plasma chamber for processing a semiconductor wafer. The plasma chamber includes circuitry for monitoring and adjusting a pulsed RF bias voltage signal to be applied to a chuck in the plasma chamber, where the chuck is configured to mount the wafer for processing. The circuitry includes an RF bias voltage detector for detecting individual pulses of the pulsed RF bias voltage signal applied to the chuck. A timing circuit is provided for determining a time for sampling each of the individual detected pulses and a sample and hold circuit.
    Type: Application
    Filed: May 23, 2007
    Publication date: December 16, 2010
    Inventors: Andras Kuthi, Stephen Hwang, James C. Vetter, Greg Eilenstine, Rongping Wang, Tuan Ngo
  • Publication number: 20070298105
    Abstract: Disclosed are methods including orally administering oral sustained release dosage forms comprising a benzimidazole derivative to a patient suffering from one or more gastric acid related diseases; wherein the benzimidazole derivative is sustainably released from the oral sustained release dosage form for a period of at least about 10 hours, and at rates effective to maintain an intragastric pH of the patient ?about 4 during at least about 65% of the period. Related compositions are also disclosed.
    Type: Application
    Filed: June 26, 2007
    Publication date: December 27, 2007
    Inventor: Stephen Hwang
  • Publication number: 20060257484
    Abstract: Disclosed are substances, compositions, dosage forms and methods that comprise tramadol and substances that comprise gabapentin.
    Type: Application
    Filed: April 13, 2006
    Publication date: November 16, 2006
    Inventors: Stephen Hwang, Sandra Chaplan, Dong Yan, Patrick Wong, David Abraham
  • Publication number: 20050163841
    Abstract: Disclosed are substances, compositions, dosage forms and methods relating to drugs including 3-aminopropyl-n-butyl-phosphinic acid; structural homologs thereof; 3-aminopropyl-n-butyl-phosphinic acid complexes; complexes that comprise structural homologs of 3-aminopropyl-n-butyl-phosphinic acid; pharmaceutically acceptable salts of 3-aminopropyl-n-butyl-phosphinic acid or structural homologs thereof; and mixtures of the above.
    Type: Application
    Filed: October 29, 2004
    Publication date: July 28, 2005
    Inventors: Patrick Wong, Dong Yan, Andrew Lam, Stephen Hwang, George Guittard
  • Publication number: 20050161061
    Abstract: A method of removing a set of particles from a set of structures including yttrium oxide is disclosed. The method includes exposing the set of structures to a first solution including an oxidizer for a first period. The method also includes removing the set of structures from the first solution, and exposing the set of structures to a second solution including a keytone reagent for a second period. The method further includes removing the set of structures from the second solution, and mechanically rubbing the set of structures with a third solution including a first set of acids for a third period.
    Type: Application
    Filed: September 17, 2003
    Publication date: July 28, 2005
    Inventors: Hong Shih, Anthony Chen, Sok Tan, Stephen Hwang, John Daugherty, Bruno Morel
  • Publication number: 20050163850
    Abstract: Disclosed are substances, compositions, dosage forms and methods that comprise levodopa and/or carbidopa.
    Type: Application
    Filed: October 29, 2004
    Publication date: July 28, 2005
    Inventors: Patrick Wong, Dong Yan, Stephen Hwang, George Guittard
  • Publication number: 20050106249
    Abstract: Oxycodone formulations are provided which produce substantially flat in vivo steady state plasma profiles. Tolerance levels associated with such profiles and tolerance levels associated with biphasic profiles are shown not to be statistically different. The substantially flat in vivo steady state plasma profiles are produced by dosage forms having substantially zero order in vitro release profiles. Such release profiles produce low single dose in vivo Cmax levels which can reduce the probability of adverse side effects.
    Type: Application
    Filed: October 28, 2004
    Publication date: May 19, 2005
    Inventors: Stephen Hwang, Nishit Modi, Padmaja Shivanand
  • Patent number: 5166095
    Abstract: A process to reduce M1/N+ contact resistance includes a low temperature anneal step, after the aluminum interconnect is alloyed at 400.degree. C. During the low temperature anneal step, the temperature of the furnace tube is lowered from 400.degree. C. to 250.degree. C. over a period of two hours, after which the integrated circuit is annealed under nitrogen for a further period of one hour. Alternately, the low temperature anneal is performed in an oven filled with nitrogen for a period of two hours at 250.degree. C.
    Type: Grant
    Filed: December 14, 1990
    Date of Patent: November 24, 1992
    Assignee: Samsung Semiconductor, Inc.
    Inventor: Stephen Hwang