Patents by Inventor C. Cheng

C. Cheng 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: 8098460
    Abstract: An apparatus is provided for releasably holding a contact pad of a head gimbal assembly in electrical contact with a flex cable assembly of an actuator coil assembly. The apparatus includes a clamp body pivotally connected to an actuator body of the actuator coil assembly and moveable between an open position and a closed position, and a latch rotatably connected to the clamp body and operable to selectively position the clamp body in the open and closed positions. The clamp body is configured to apply pressure to the contact pad of the head gimbal assembly to make electrical contact with the flex cable assembly when the contact pad is arranged on the flex cable assembly and the clamp body in the closed position.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: January 17, 2012
    Assignee: Western Digital Technologies, Inc.
    Inventors: Chih-Wu Jen, Chunjer C. Cheng
  • Patent number: 8094414
    Abstract: An apparatus for detachably mounting a head gimbal assembly to an actuator coil assembly is described. The apparatus includes a lever pivotally connected to an upper surface of an arm of the actuator coil assembly and operable to pivot between a release position and a mount position. A capture pin extends from the lever into a mounting hole of the arm. The capture pin is substantially perpendicular to the lever and is collectively pivotable with the lever between the release position and the mount position. A spring is arranged to exert a force on the lever in a direction from the release position to the mount position. The capture pin is configured to engage the head gimbal assembly positioned on a lower mounting surface of the arm opposite the upper surface of the arm via the mounting hole and to press the head gimbal assembly into the arm when in the mount position.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: January 10, 2012
    Assignee: Western Digital Technologies, Inc.
    Inventors: Chunjer C. Cheng, Xiaoyang Shen, Tao Lin
  • Patent number: 8084648
    Abstract: In a process for producing cyclohexylbenzene, hydrogen and a liquid feed comprising benzene are introduced into a reaction zone and are contacted in the reaction zone under hydroalkylation conditions to produce cyclohexylbenzene. An effluent stream comprising cyclohexylbenzene and unreacted benzene is removed from the reaction zone and is divided into at least first and second portions, wherein the mass ratio of the effluent stream first portion to the effluent stream second portion is at least 2:1. The effluent stream first portion is then cooled and the cooled effluent stream first portion is recycled to the reaction zone.
    Type: Grant
    Filed: January 13, 2009
    Date of Patent: December 27, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: John S. Buchanan, Jane C. Cheng, Tan-Jen Chen, James R. Lattner
  • Publication number: 20110288543
    Abstract: A high frequency alternating current medical device and method of using such is disclosed. High frequency alternating current medical device comprises a power source, an electric field generator, a self-limiting conductive material electrical component, at least one probe or needle-type projection, and at least two conductive segments located on probe or needle-type projection. At least two conductive segments are electrically connected to electric field generator so that an electric field is created between conductive segments, which induces an electrical current, which generates heat, and causes a certain desired precise cell injury. Self-limiting conductive material electrical component allows such precise cell injury because it limits electrical current through target tissue. Invention may be used in medical, dental, or veterinary applications. Exemplary embodiments include cosmetic applications, treatment of wrinkles, remodeling of subcutaneous tissue, treatment of muscle spasms, and others.
    Type: Application
    Filed: May 20, 2010
    Publication date: November 24, 2011
    Inventors: Elbert T. Cheng, Tai C. Cheng, Jacoueline T. Cheng
  • Publication number: 20110288341
    Abstract: In a process for producing cyclohexylbenzene, benzene and hydrogen are fed to at least one reaction zone comprising a catalyst system which comprises a molecular sieve and at least one hydrogenation metal. The MCM-22 family molecular sieve having an X-ray diffraction pattern including d-spacing maxima at 12.4±0.25, 6.9±0.15, 3.57±0.07 and 3.42±0.07 Angstrom, and the hydrogenation metal is selected from the group consisting of palladium, ruthenium, nickel, zinc, tin, cobalt, and combinations of any two or more thereof Hydroalkylation conditions of temperature and pressure are selected to produce a hydroalkylation conversion in a range of from about 15% to about 75% The benzene and hydrogen are then contacted in the at least one reaction zone under said selected hydroalkylation condition to produce an effluent containing cyclohexylbenzene.
    Type: Application
    Filed: November 24, 2009
    Publication date: November 24, 2011
    Inventors: Tan-Jen Chen, Francisco M. Benitez, John S. Buchanan, Jane C. Cheng, Jon E. Stanat
  • Publication number: 20110253446
    Abstract: A drill bit made according to one embodiment may include a bit body having a longitudinal axis, a plurality of gamma sensors placed in the bit body, at least two gamma ray sensors in the plurality of sensors are spaced-apart from each other along the longitudinal axis of the bit body, wherein each such sensor in the plurality of sensors is configured to detect gamma rays from the formation during drilling of the wellbore and to provide signals representative of the detected gamma rays, and a circuit configured to process at least partially the signals from each of the at least two gamma ray sensors for estimating an inclination of the bit body relative to the longitudinal axis.
    Type: Application
    Filed: April 18, 2011
    Publication date: October 20, 2011
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Tu Tien Trinh, Eric Sullivan, Xiaomin C. Cheng
  • Publication number: 20110253448
    Abstract: A drill bit made according to one embodiment includes a source configured to induce radiation into a formation during drilling of a wellbore and a sensor in the drill bit configured to detect radiation from the formation responsive to the radiation induced by the source. The drill bit may further include a circuit configured to process signals received from the sensor to estimate a property of the formation.
    Type: Application
    Filed: April 18, 2011
    Publication date: October 20, 2011
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Tu Tien Trinh, Eric Sullivan, David A. Curry, Xiaomin C. Cheng, Feyzi Inanc, Yi Liu
  • Publication number: 20110251190
    Abstract: The present invention comprises a new class of compounds useful for the modulation of Beta-secretase enzyme activity and for the treatment of Beta-secretase mediated diseases, including Alzheimer's disease (AD) and other related conditions. In one embodiment, the compounds have a general Formula I wherein A1, A2, A3, A4, A5, A6, R2, R7, X and Y of Formula I are defined herein. The invention also includes use of these compounds in pharmaceutical compositions for treatment, prophylactic or therapeutic, of disorders and conditions related to the activity of beta-secretase protein. Such disorders include, for example, Alzheimer's Disease, cognitive deficits, cognitive impairment, schizophrenia and other central nervous system conditions related to and/or caused by the formation and/or deposition of plaque on the brain. The invention also comprises further embodiments of Formula I, intermediates and processes useful for the preparation of compounds of Formula I.
    Type: Application
    Filed: March 14, 2011
    Publication date: October 13, 2011
    Applicant: Amgen Inc.
    Inventors: Yuan CHENG, Ryan White, Albert Amegadzie, James Brown, Alan C. Cheng, Erin F. Dimauro, Thomas Dineen, Oleg Epstein, Vijay Keshav Gore, Jason Brooks Human, Ted Judd, Charles Kreiman, Qingyian Liu, Patricia Lopez, Vu Van Ma, Isaac Marx, Ana Minatti, Hanh Nho Nguyen, Nick A. Paras, Vinod F. Patel, Wenyuan Qian, Matthew Weiss, Qiufen Xue, Xiao Mei Zheng, Wenge Zhong
  • Publication number: 20110237575
    Abstract: The present invention relates to novel heterocyclic compounds as Fatty Acid Binding Protein (“FABP”) inhibitors, pharmaceutical compositions comprising the heterocyclic compounds and the use of the compounds for treating or preventing a cardiovascular disease, a metabolic disorder, obesity or an obesity-related disorder, diabetes, dyslipidemia, a diabetic complication, impaired glucose tolerance or impaired fasting glucose.
    Type: Application
    Filed: November 10, 2009
    Publication date: September 29, 2011
    Inventors: Gerald W. Shipps, JR., Cliff C. Cheng, Xiaohua Huang, Abdelghani Abe Achab, Peter Orth, Johannes H. Voigt, Kyle Ann Soucy
  • Publication number: 20110218679
    Abstract: Apparatus and methods for therapy delivery are disclosed. In one embodiment, a therapy delivery system includes a plurality of movable components including a radiation therapy nozzle and a patient pod for holding a patient, a patient registration module for determining a desired position of at least one of the plurality of movable components, and a motion control module for coordinating the movement of the least one of the plurality of movable components from a current position to the desired position. The motion control module includes a path planning module for simulating at least one projected trajectory of movement of the least one of the plurality of moveable components from the current position to the desired position.
    Type: Application
    Filed: April 7, 2011
    Publication date: September 8, 2011
    Applicant: Loma Linda University Medical Center
    Inventors: Chieh C. Cheng, David A. Lesyna, Michael F. Moyers
  • Publication number: 20110178351
    Abstract: This disclosure relates to a process for hydrocarbon conversion comprising contacting, under conversion conditions, a feedstock suitable for hydrocarbon conversion with a catalyst comprising an EMM-10 family molecular sieve.
    Type: Application
    Filed: February 14, 2011
    Publication date: July 21, 2011
    Inventors: Wieslaw J. Roth, Jane C. Cheng, Mohan Kalyanaraman, Michael C. Kerby, Terry E. Helton
  • Publication number: 20110160489
    Abstract: In a process for reducing the level of tert-butylbenzene in a mixed butylbenzene feed comprising tert-butylbenzene and sec-butylbenzene, the feed is contacted under dealkylation conditions with a catalyst system comprising a dealkylation catalyst whereby the tert-butylbenzene is selectively dealkylated to produce an effluent stream which comprises benzene and which has a lower concentration of tert-butylbenzene than said feed.
    Type: Application
    Filed: August 4, 2009
    Publication date: June 30, 2011
    Inventors: Jihad M. Dakka, Jane C. Cheng, John Buchanan
  • Publication number: 20110152577
    Abstract: In a process for producing sec-butylbenzene, a C4 olefinic hydrocarbon feedstock comprising isobutene and at least one n-butene is contacted with methanol and/or water in the presence of an acid catalyst to selectively oxygenate isobutene to produce an effluent stream rich in n-butene and containing less isobutene than the feedstock. The effluent stream is then contacted with benzene under alkylation conditions and in the presence of an alkylation catalyst to produce alkylation stream comprising sec-butylbenzene.
    Type: Application
    Filed: August 4, 2009
    Publication date: June 23, 2011
    Inventors: John S. Buchanan, Jon E.R. Stanat, James R. Lattner, Jane C. Cheng
  • Patent number: 7957095
    Abstract: A novel disk drive is disclosed and claimed. The disk drive includes a disk and a spindle motor to which the disk is attached to rotate about an axis of rotation. The disk drive also includes a stationary plate facing and disposed over the disk, wherein the stationary plate includes a plurality of grooves through which rotation-induced air flows from an inlet end to an outlet end. The disk drive also includes a recirculation filter coupled to and immediately adjacent said outlet end of said plurality of grooves.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: June 7, 2011
    Assignee: Western Digital Technologies, Inc.
    Inventors: Alex Y. Tsay, Chunjer C. Cheng, Lin Yang, Jin Hui Ou-Yang
  • Patent number: 7951986
    Abstract: Disclosed herein is a process and catalyst for producing an ethylbenzene feed from a polyethylbenzene feed, comprising the step of contacting a benzene feed with a polyethylbenzene feed under at least partial liquid phase conditions in the presence of a zeolite beta catalyst having a phosphorus content in the range of 0.01 wt. % to 0.5 wt. % of said catalyst, to provide a product which comprises ethylbenzene.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: May 31, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Michael C. Clark, Jane C. Cheng, Ajit B. Dandekar
  • Publication number: 20110126154
    Abstract: A method, system, and computer program product for intelligent command prediction are provided. The method includes determining a command prediction preference associated with a user from user profile data, and selecting one or more command history repositories responsive to the command prediction preference. The one or more command history repositories include command history data collected from a plurality of users and classification data associated with the plurality of users. The method also includes calculating command probabilities for commands in the command history data of the selected one or more command history repositories as a function of the classification data associated with the plurality of users in relation to the user. The method additionally includes presenting a next suggested command as a command from the command history data of the selected one or more command history repositories with a highest calculated command probability.
    Type: Application
    Filed: November 24, 2009
    Publication date: May 26, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Olivier Boehler, Gisela C. Cheng, Anuja Deedwaniya, Zamir G. Gonzalez, Shayne M. Grant, Jagadish B. Kotra
  • Patent number: 7949096
    Abstract: A patient positioning system for use with a radiation therapy system that monitors the location of fixed and movable components and pre-plans movement of the movable components so as to inhibit movement if a collision would be indicated. The positioning system can also coordinate movement of multiple movable components for reduced overall latency in registering a patient. The positioning system includes external measurement devices which measure the location and orientation of objects, including components of the radiation therapy system, in space and can also monitor for intrusion into the active area of the therapy system by personnel or foreign objects to improve operational safety of the radiation therapy system.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: May 24, 2011
    Assignee: Loma Linda University Medical Center
    Inventors: Chieh C. Cheng, David A. Lesyna, Michael F. Moyers
  • Publication number: 20110118521
    Abstract: A method is described for preparing a molecular sieve-containing catalyst for use in a catalytic process conducted in a stirred tank reactor. The method comprises providing a mixture comprising a molecular sieve crystal and forming the mixture into catalyst particles having an average cross-sectional dimension of between about 0.01 mm and about 3.0 mm. The mixture may include a binder and the catalyst particles are then calcined to remove water therefrom and, after calcination and prior to loading the catalyst particles into a reactor for conducting the catalytic process, the catalyst particles are coated with a paraffin inert to the conditions employed in the catalytic process.
    Type: Application
    Filed: June 19, 2009
    Publication date: May 19, 2011
    Inventors: Carolyn B. Duncan, Jon E.R. Stanat, Daria N. Lissy, Jane C. Cheng
  • Patent number: D643889
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: August 23, 2011
    Inventor: Richard L. C. Cheng
  • Patent number: D649100
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: November 22, 2011
    Inventor: John C. Cheng