Patents by Inventor Richard Chou

Richard Chou 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).

  • Publication number: 20130035357
    Abstract: The present invention is methods for inhibiting collagen destruction in joints of osteoarthritis patients. The methods are based on use of rexinoid compounds, in particular bexarotene, and their activity to inhibit synthesis of matrix metalloproteinases (MMPs) in affected tissue.
    Type: Application
    Filed: April 13, 2011
    Publication date: February 7, 2013
    Applicant: TRUSTEES OF DARTMOUTH COLLEGE
    Inventors: Richard Chou, Constance E. Brinckerhoff, Daniel A. Albert
  • Patent number: 7568177
    Abstract: Apparatus and method aspects for power gating of an integrated circuit (IC) include providing at least one I/O power pad of an IC with a switch arrangement. The at least one I/O power pad is utilized to control a power signal transfer to at least a portion of the IC.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: July 28, 2009
    Assignee: Cadence Design Systems, Inc.
    Inventors: Tobing Soebroto, Ankur Gupta, Hendy Kosasih, Richard Chou
  • Publication number: 20060293452
    Abstract: Polymer compositions having thermoplastic and elastomeric features are provided. These polymer compositions, which are also characterized by superior compatibility with water-based and solvent-based adhesives, comprise at least one thermoplastic elastomer and at least one maleated ethylene copolymer. The compositions of the invention are useful in articles of manufacture that require flexibility and are fabricated with adhesives, including sporting goods, and particularly athletic shoes.
    Type: Application
    Filed: December 6, 2005
    Publication date: December 28, 2006
    Inventors: Richard Chou, Kye Kim, Yun-Tong Ou
  • Publication number: 20060268799
    Abstract: A WiFi voice communication system incorporates a plurality of access points (AP) interconnected to a WiFi network. A handset for voice communication through the AP is provided with two sets of medium access control (MAC) components, each of said MAC having the capability to set up a voice or data call with an AP individually and simultaneously, and means for transferring a voice call from one AP to another by transferring from one MAC to another.
    Type: Application
    Filed: May 25, 2006
    Publication date: November 30, 2006
    Applicant: UTSTARCOM, INC.
    Inventors: William Huang, Shanquan Bao, Shanghu Luo, Liming Gao, Richard Chou
  • Publication number: 20060160952
    Abstract: Disclosed are high frequency-active blends comprising (a) copolymers of ethylene and maleic anhydride or its functional equivalents and (b) ethylene copolymers with polar comonomers such as ethylene/vinyl acetate copolymers, ethylene/alkyl (meth)acrylate copolymers and ethylene/(meth)acrylate/carbon monoxide terpolymers; and films, powders, multilayer structures, and articles prepared therefrom.
    Type: Application
    Filed: December 21, 2005
    Publication date: July 20, 2006
    Inventors: Richard Chou, Karlheinz Hausmann, Han Lee
  • Publication number: 20060148988
    Abstract: The present invention is a composition useful as an impact modifier for polyamide compositions. In one embodiment, impact modifiers of the present invention are ethylene maleic anhydride copolymers having at least 3% maleic anhydride functionality. Compositions comprising copolymers of ethylene and maleic anhydride or its functional equivalents and ethylene copolymers with polar comonomers are disclosed. The compositions provide miscible blends and exhibit improved properties, such as increased temperature resistance and mechanical strength, compared to pure ethylene copolymers with polar comonomers.
    Type: Application
    Filed: December 21, 2005
    Publication date: July 6, 2006
    Inventor: Richard Chou
  • Publication number: 20060142489
    Abstract: The present invention is a film or sheet comprising ethylene acid copolymer/polyamide blends that are useful for fabricating films, pouches and tubing for packaging. Films, pouches and tubing, obtained from compositions described herein are tough and demonstrate good mechanical properties and good optical properties, even at low temperature. More particularly, the compositions of ethylene copolymers and polyamides of the present invention can be used in packaging of foodstuffs and medical solutions.
    Type: Application
    Filed: November 8, 2005
    Publication date: June 29, 2006
    Inventors: Richard Chou, Barry Morris, David Zhang
  • Publication number: 20060025527
    Abstract: Disclosed are adhesive compositions comprising nonfunctionalized base resins and functionalized ethylene copolymers such as ethylene/maleic anhydride (E/MAH) or ethylene/ethyl hydrogen maleate (E/MAME) copolymer, which are synthesized directly in a high pressure autoclave. These adhesive compositions can be applied as self-supporting films or can be co-extruded or extrusion coated onto a substrate. Also disclosed are multilayer structures, films, pipe coatings and building panels comprising these compositions.
    Type: Application
    Filed: July 28, 2005
    Publication date: February 2, 2006
    Inventor: Richard Chou
  • Publication number: 20050288442
    Abstract: A composition that can be used as foam composition is disclosed, which comprises or is produced from an ethylene acrylate copolymer, an acid copolymer or an ionomer of the acid copolymer or both, or combinations thereof, and optionally a soft ethylene polymer. The ethylene acrylate copolymer comprises repeat units derived from ethylene and at least one alkylacrylate. The acid copolymer comprises repeat units derived from ethylene and acrylic acid, methacrylic acid, or combinations thereof. The soft ethylene polymer comprises ethylene and an ?-olefin, vinyl acetate, or combinations thereof.
    Type: Application
    Filed: June 21, 2005
    Publication date: December 29, 2005
    Inventors: Richard Chou, Kye Kim, Wayne Whelchel
  • Publication number: 20050288440
    Abstract: A composition that can be used as foam composition is disclosed, which comprises or is produced from about 40 to about 95 wt %, or about 50 to about 95 wt %, of an ethylene acrylate copolymer and about 5 to about 60 wt %, or about 5 to about 50 wt %, of a soft ethylene polymer wherein the ethylene acrylate copolymer comprises repeat units derived from ethylene and at least one alkyl acrylate and the soft ethylene polymer comprises copolymer of ethylene and an ?-olefin, copolymer of ethylene and vinyl acetate, or combinations thereof.
    Type: Application
    Filed: June 21, 2005
    Publication date: December 29, 2005
    Inventors: Richard Chou, Kye Kim, Wayne Whelchel
  • Patent number: 6981230
    Abstract: An efficient inductance modeling approach for on-chip power-ground wires using their effective self-loop-inductances is disclosed. Instead of extracting the inductive coupling between every two parallel wires and putting this huge number inductance elements into circuit simulation, this technique determines the effective self-loop-inductance for each power or ground wire segment and only generates a circuit with these effective self-inductors for simulation. This approach greatly reduces the circuit size and makes the full-chip power-ground simulation with the consideration of inductance feasible.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: December 27, 2005
    Assignee: Apache Design Solutions, Inc.
    Inventors: Shen Lin, Norman Chang, Weize Xie, Richard Chou
  • Publication number: 20050239964
    Abstract: The present invention is a composition useful as an impact modifier for polyamide compositions. In one embodiment, impact modifiers of the present invention are ethylene maleic anhydride copolymers having at least 3% maleic anhydride functionality.
    Type: Application
    Filed: May 23, 2003
    Publication date: October 27, 2005
    Inventor: Richard Chou
  • Publication number: 20050203253
    Abstract: Disclosed are films, tapes, and melt-spun fibers comprising or prepared from a composition comprising (a) at least one polyamide polymer; and (b) from about 0.1 to 20 weight % of at least one ethylene copolymer such as ethylene/vinyl acetate dipolymers, ethylene/vinyl acetate terpolymers, ethylene/alkyl (meth)acrylate dipolymers, ethylene/alkyl (meth)acrylate terpolymers, functionalized ethylene copolymers, ethylene/acid copolymers, and salts thereof. The films, tapes and fibers exhibit improved tensile properties such as tensile strength and elongation at break compared to nonmodified polyamide compositions. Also disclosed are nonwoven textiles comprising or prepared from the oriented melt-spun fibers.
    Type: Application
    Filed: March 4, 2005
    Publication date: September 15, 2005
    Inventors: Richard Chou, Loic Rolland, Sam Samuels, David Walsh
  • Publication number: 20050137306
    Abstract: A flame retardant, halogen-free polymer composition that is a blend of: (1) a polyolefin selected from (a) EVA containing 25-90% by weight ethylene and 10-75% by weight vinyl acetate, (b) LLDPE, (c) LDPE, (d) VLDPE, (e) HDPE, or mixtures thereof; (2) a coupling agent made from (f) about 10 to about 50% by weight of a copolymer of ethylene and about 1% by weight to about 15% by weight functional comonomer and (g) about 50% by weight to about 90% by weight of an ethylene-based polymer; and (3) an inorganic flame retardant filler.
    Type: Application
    Filed: November 24, 2004
    Publication date: June 23, 2005
    Inventors: Karlheinz Hausmann, Richard Chou, Richard Arhart
  • Publication number: 20050090633
    Abstract: The present invention is a fluorine containing ethylene copolymer (FCEC) obtained by the copolymerization of ethylene with suitable fluorine-containing comonomer compounds, wherein the fluorine-containing comonomer compound is present at a concentration of up to 40% by weight, based on the total weight of the ethylene copolymer. FCEC described herein can be useful in a variety of applications, for example: as a release resin in low surface energy release films; as melt blown fibers; in composite or multilayer structures as a low surface energy outer layer; as microporous membranes; as flashspun plexifilamentary products; and as melt spun fibrous products.
    Type: Application
    Filed: March 7, 2003
    Publication date: April 28, 2005
    Inventors: Richard Chou, Sam Samuels, Roger Siemionko
  • Publication number: 20050020762
    Abstract: Disclosed are compositions of ethylene acid copolymers and polyamides that are useful for fabricating films, sheets and molded articles for scuff and scratch resistant material and their application as decorative and protective films, comprising (1) from about 30 to about 65 weight % of a polyamide; and (2) from about 70 to about 35 weight % of a copolymer of (a) ethylene; (b) from about 5 weight % to about 15 weight % of an ?,?-unsaturated C3-C8 carboxylic acid; (c) from about 0.5 weight % to about 12 weight % of at least one comonomer that is an ethylenically unsaturated dicarboxylic acid; and (d) from 0 weight % to about 30 weight % of monomers selected from alkyl acrylate and alkyl methacrylate, wherein the alkyl groups have from one to twelve carbon atoms; at least partially neutralized by one or more alkali metal, transition metal, or alkaline earth metal cations.
    Type: Application
    Filed: June 4, 2004
    Publication date: January 27, 2005
    Inventors: Richard Chou, Karlheinz Hausmann
  • Patent number: 6628171
    Abstract: An apparatus comprising an oscillator circuit and a logic circuit. The oscillator circuit may be configured to present an output signal having a frequency in response to (i) a reference signal, (ii) a control signal and (iii) the output signal. The logic circuit may be configured to present the control signal in response to (i) the output signal and (ii) the reference signal. In one example, the logic circuit may disable the oscillator when the output signal oscillates outside a predetermined range.
    Type: Grant
    Filed: January 23, 2001
    Date of Patent: September 30, 2003
    Assignee: Cypress Semiconductor Corp.
    Inventors: Richard Chou, Pidugu L. Narayana, Paul H. Scott
  • Patent number: 6177843
    Abstract: An apparatus comprising an oscillator circuit and a logic circuit. The oscillator circuit may be configured to present an output signal having a frequency in response to (i) a reference signal, (ii) a control signal and (iii) the output signal. The logic circuit may be configured to present the control signal in response to (i) the output signal and (ii) the reference signal. In one example, the logic circuit may disable the oscillator when the output signal oscillates outside a predetermined range.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: January 23, 2001
    Assignee: Cypress Semiconductor Corp.
    Inventors: Richard Chou, Pidugu L. Narayana, Paul H. Scott