Patents by Inventor Hua Ma

Hua Ma 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: 9427427
    Abstract: The invention relates to solid dispersions of poorly water soluble compounds, in particular Compound A as disclosed herein, formed by solvent co-precipitation or spray drying, resulting in improved bioavailability, safety and tolerability of said compounds.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: August 30, 2016
    Assignee: HOFFMANN-LA ROCHE INC.
    Inventors: Steve Lomuscio, Hua Ma, Michael Allen Matchett, Harpreet K. Sandhu, Navnit Hargovindas Shah, Yu-E Zhang
  • Publication number: 20150267349
    Abstract: Wood pulp is treated with an esterase formulation in combination with a metal ion or cationic polymer to increase the stability or activity or both of esterase enzymes at high temperature, or at extreme pH ranges of acidic and alkaline conditions. The treatment by esterase together with metals ion or cationic polymer can be used to treat pitch containing pulp at high temperatures prior to, during or after refining of wood chip/pulp, in order to enhance the reduction of pitch problems and facilitate in the manufacture of paper.
    Type: Application
    Filed: June 8, 2015
    Publication date: September 24, 2015
    Inventors: Xiang H. Wang, Jian Hua Ma, Chengliang Jiang, Howard Kaplan
  • Publication number: 20150258033
    Abstract: In one aspect, the present invention is directed to a method of making a controlled release solid dosage form having an ethylcellulose coating layer, which layer comprises a coalescing agent which is an organic ester having an HLB Value of from 3 to 8. The use of such coalescing agent permits the formation of an effective controlled release coating without the need for a further curing step after the coating process. In other aspects, this invention relates to an aqueous dispersion useful in such method; as well as to the coated dosage form produced.
    Type: Application
    Filed: March 4, 2015
    Publication date: September 17, 2015
    Inventors: Hui S. Yang, Hua Ma, Kevin Stokes
  • Publication number: 20150184797
    Abstract: A connecting structure includes a ball joint bracket and a component bracket. The ball joint bracket includes a ball joint and the component bracket includes a housing space. The ball joint is rotatably received in the housing space, at least one protrusion is located on a selection one of an inner wall of the housing space and a surface of the ball joint. And at least one groove is located on the remaining one of the inner wall of the housing space and the surface of the ball joint, the at least one protrusion is slidably limited in the at least one groove.
    Type: Application
    Filed: February 20, 2014
    Publication date: July 2, 2015
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: CHENG-HUA MA
  • Patent number: 9051692
    Abstract: Wood pulp is treated with an esterase formulation in combination with a metal ion or cationic polymer to increase the stability or activity or both of esterase enzymes at high temperature, or at extreme pH ranges of acidic and alkaline conditions. The treatment by esterase together with metals ion or cationic polymer can be used to treat pitch containing pulp at high temperatures prior to, during or after refining of wood chip/pulp, in order to enhance the reduction of pitch problems and facilitate in the manufacture of paper.
    Type: Grant
    Filed: January 6, 2009
    Date of Patent: June 9, 2015
    Assignee: Enzymatic Deinking Technologies, L.L.C.
    Inventors: Xiang H. Wang, Jian Hua Ma, Chengliang Jiang, Howard Kaplan
  • Publication number: 20140206742
    Abstract: The invention relates to solid dispersions of poorly water soluble compounds, in particular Compound A as disclosed herein, formed by solvent co-precipitation or spray drying, resulting in improved bioavailability, safety and tolerability of said compounds.
    Type: Application
    Filed: January 21, 2014
    Publication date: July 24, 2014
    Applicant: Hoffmann-La Roche Inc.
    Inventors: Steve Lomuscio, Hua Ma, Michael Allen Matchett, Harpreet K. Sandhu, Navnit Hargovindas Shah, Yu-E Zhang
  • Patent number: 8761688
    Abstract: A radio frequency circuit and a signal transmission method are provided. The radio frequency circuit comprises a primary antenna, a secondary antenna and a radio frequency integrated circuit. The primary antenna is electrically coupled to the radio frequency integrated circuit to transmit and receive at least one transmission/reception signal. The secondary antenna is electrically coupled to the radio frequency integrated circuit to receive at least one diversity reception signal. The radio frequency integrated circuit is configured to receive a specific diversity reception signal via the primary antenna and to transmit and receive a specific transmission/reception signal via the secondary antenna.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: June 24, 2014
    Assignee: HTC Corporation
    Inventors: Wei-Yang Wu, Wei-Chien Chen, Chien-Hua Ma
  • Patent number: 8652239
    Abstract: A method of making a membrane permeable to hydrogen gas (H2?) is disclosed. The membrane is made by forming a palladium layer, depositing a layer of copper on the palladium layer, and galvanically displacing a portion of the copper with palladium. The membrane has improved resistance to poisoning by H2S compared to a palladium membrane. The membrane also has increased permeance of hydrogen gas compared to palladium-copper alloys. The membrane can be annealed at a lower temperature for a shorter amount of time.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: February 18, 2014
    Assignee: Worcester Polytechnic Institute
    Inventors: Yi Hua Ma, Natalie Pomerantz
  • Patent number: 8542157
    Abstract: An antenna module includes an antenna, a tunable matching circuit, a power detector and a control unit. The antenna comprises a feeding point. The tunable matching circuit, electrically connected between the antenna and the power detector and configured to provide a loading impedance, comprises a plurality of tunable impedance elements connected to each other and electrically connected to the feeding point as well. The power detector is electrically connected between the tunable matching circuit and a power amplifier and configured to detect a power indicator. The control unit, electrically connected to the tunable matching circuit and the power detector, is configured to read the power indicator and RSSI to generate a control signal for the tunable matching circuit, which consistently changes the loading impedance to achieve impedance matching.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: September 24, 2013
    Assignee: HTC Corporation
    Inventors: Wei-Yang Wu, Chien-Hua Ma, Yen-Chuan Lin
  • Patent number: 8537114
    Abstract: A mouse device is operable with a variable button-pressing force. The mouse device includes a mouse base, a mouse case, a button disposed on the mouse case, a pressing plate contacted with the button, and the sliding member contacted with the pressing plate. The sliding member is partially protruded out of the mouse base, and movable with respect to the mouse base. When the sliding member is moved to a first position and contacted with a first touching part of the pressing plate, the force required for pressing the button is equal to a first downward external force. Whereas, when the sliding member is moved to a second position and contacted with a second touching part of the pressing plate, the force required for pressing the button is equal to a second downward external force.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: September 17, 2013
    Assignee: Primax Electronics Ltd.
    Inventor: Qin-Hua Ma
  • Patent number: 8366805
    Abstract: Composite structures are described that have a porous anodic oxide layer such as, for example, a porous anodic aluminum oxide layer. In one aspect, the present invention includes a composite gas separation module having a porous metal substrate; a porous anodic aluminum oxide layer, wherein the porous anodic aluminum oxide layer overlies the porous metal substrate; and a dense gas-selective membrane, wherein the dense gas-selective membrane overlies the porous anodic aluminum oxide layer. A composite filter is described having a porous non-aluminum metal substrate; and a porous anodic aluminum oxide layer, wherein the porous anodic aluminum oxide layer defines pores extending through the porous anodic aluminum oxide layer. Methods for fabricating composite gas separation modules and composite filters and methods for selectively separating hydrogen gas from a hydrogen gas-containing gaseous stream are also described.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: February 5, 2013
    Assignee: Worcester Polytechnic Institute
    Inventors: Yi Hua Ma, Ivan P. Mardilovich
  • Publication number: 20120315861
    Abstract: A radio frequency circuit and a signal transmission method are provided. The radio frequency circuit comprises a primary antenna, a secondary antenna and a radio frequency integrated circuit. The primary antenna is electrically coupled to the radio frequency integrated circuit to transmit and receive at least one transmission/reception signal. The secondary antenna is electrically coupled to the radio frequency integrated circuit to receive at least one diversity reception signal. The radio frequency integrated circuit is configured to receive a specific diversity reception signal via the primary antenna and to transmit and receive a specific transmission/reception signal via the secondary antenna.
    Type: Application
    Filed: June 8, 2011
    Publication date: December 13, 2012
    Applicant: HTC CORPORATION
    Inventors: Wei-Yang WU, Wei-Chien CHEN, Chien-Hua MA
  • Patent number: 8228667
    Abstract: An electronic device includes a main body and a flexible display panel. The main body includes a body portion, a connecting portion, and a cover portion. The connecting portion is pivotally connected to the body portion. The cover portion is pivotally connected to the connecting portion so as to be capable of rotating relative to the body portion. The cover portion, the body portion, and the connecting portion form a containing space cooperatively. The flexible display panel is disposed in the containing space in a curved manner. The flexible display panel includes a first display section and a second display section. The first display section is fixed to the cover portion. The second display section is slidably disposed on the body portion.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: July 24, 2012
    Assignee: Wistron Corporation
    Inventor: Hsin-Hua Ma
  • Publication number: 20120075160
    Abstract: An antenna module includes an antenna, a tunable matching circuit, a power detector and a control unit. The antenna comprises a feeding point. The tunable matching circuit, electrically connected between the antenna and the power detector and configured to provide a loading impedance, comprises a plurality of tunable impedance elements connected to each other and electrically connected to the feeding point as well. The power detector is electrically connected between the tunable matching circuit and a power amplifier and configured to detect a power indicator. The control unit, electrically connected to the tunable matching circuit and the power detector, is configured to read the power indicator and RSSI to generate a control signal for the tunable matching circuit, which consistently changes the loading impedance to achieve impedance matching.
    Type: Application
    Filed: April 25, 2011
    Publication date: March 29, 2012
    Applicant: HTC CORPORATION
    Inventors: Wei-Yang WU, Chien-Hua MA, Yen-Chuan Lin
  • Publication number: 20120050122
    Abstract: An antenna module and an impedance matching method thereof are provided. The antenna module includes an antenna piece, a tunable matching circuit and a control unit. The antenna piece has a feeding point. The tunable matching circuit, electrically connected to the feeding point and configured to provide a loading impedance, has an inductor, a first tunable capacitor and a second tunable capacitor. One end of the first tunable capacitor is electrically connected to one end of the inductor; and one end of the second tunable capacitor is electrically connected to another end of the first tunable capacitor and the feeding point, and another end of the second tunable capacitor is electrically connected to a system ground. The control unit is electrically connected to the matching circuit and configured to load an operation frequency so as to generate a control signal for adaptively modulating the values of the first and the second tunable capacitance.
    Type: Application
    Filed: March 14, 2011
    Publication date: March 1, 2012
    Applicant: HTC CORPORATION
    Inventors: Wei-Yang WU, Chien-Hua MA, Yen-Chuan Lin
  • Publication number: 20110303092
    Abstract: A method of making a membrane permeable to hydrogen gas (H2?) is disclosed. The membrane is made by forming a palladium layer, depositing a layer of copper on the palladium layer, and galvanically displacing a portion of the copper with palladium. The membrane has improved resistance to poisoning by H2S compared to a palladium membrane. The membrane also has increased permeance of hydrogen gas compared to palladium-copper alloys. The membrane can be annealed at a lower temperature for a shorter amount of time.
    Type: Application
    Filed: May 3, 2011
    Publication date: December 15, 2011
    Inventors: Yi Hua Ma, Natalie Pomerantz
  • Publication number: 20110286157
    Abstract: An electronic device includes a main body and a flexible display panel. The main body includes a body portion, a connecting portion, and a cover portion. The connecting portion is pivotally connected to the body portion. The cover portion is pivotally connected to the connecting portion so as to be capable of rotating relative to the body portion. The cover portion, the body portion, and the connecting portion form a containing space cooperatively. The flexible display panel is disposed in the containing space in a curved manner. The flexible display panel includes a first display section and a second display section. The first display section is fixed to the cover portion. The second display section is slidably disposed on the body portion.
    Type: Application
    Filed: August 19, 2010
    Publication date: November 24, 2011
    Inventor: Hsin-Hua Ma
  • Publication number: 20110279371
    Abstract: A mouse device is operable with a variable button-pressing force. The mouse device includes a mouse base, a mouse case, a button disposed on the mouse case, a pressing plate contacted with the button, and the sliding member contacted with the pressing plate. The sliding member is partially protruded out of the mouse base, and movable with respect to the mouse base. When the sliding member is moved to a first position and contacted with a first touching part of the pressing plate, the force required for pressing the button is equal to a first downward external force. Whereas, when the sliding member is moved to a second position and contacted with a second touching part of the pressing plate, the force required for pressing the button is equal to a second downward external force.
    Type: Application
    Filed: July 15, 2010
    Publication date: November 17, 2011
    Applicant: PRIMAX ELECTRONICS LTD.
    Inventor: Qin-Hua Ma
  • Publication number: 20100328236
    Abstract: A method for controlling a computer system is disclosed. The computer system includes a touch device, a control module, a display device and an operation module. The touch device includes a main touch area without display function, wherein a touch point is moved for moving a cursor displayed in the display device. The main touch area includes a first partition and a second partition. The method includes the control module receiving an enable signal, a first touch point of the main touch area being touched, the touch device outputting a first touch signal to the control module, the control module deciding whether the first touch point is inside the first partition according to the first touch signal, and the control module notifying the operation module to perform a first program if the first touch point is inside the first partition.
    Type: Application
    Filed: January 10, 2010
    Publication date: December 30, 2010
    Inventor: Hsin-Hua Ma
  • Publication number: 20100170646
    Abstract: Wood pulp is treated with an esterase formulation in combination with a metal ion or cationic polymer to increase the stability or activity or both of esterase enzymes at high temperature, or at extreme pH ranges of acidic and alkaline conditions. The treatment by esterase together with metals ion or cationic polymer can be used to treat pitch containing pulp at high temperatures prior to, during or after refining of wood chip/pulp, in order to enhance the reduction of pitch problems and facilitate in the manufacture of paper.
    Type: Application
    Filed: January 6, 2009
    Publication date: July 8, 2010
    Inventors: Xiang H. Wang, Jian Hua Ma, Chengliang Jiang, Howard Kaplan