Patents by Inventor William Du

William Du 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: 20220275313
    Abstract: This disclosure relates to a cleaning composition that contains 1) hydroxylamine; 2) alkanolamine; 3) an alkylene glycol; 4) water. This disclosure also relates to a method of using the above composition for cleaning a semiconductor substrate.
    Type: Application
    Filed: May 20, 2022
    Publication date: September 1, 2022
    Inventors: Tomonori Takahashi, Bing Du, William A. Wojtczak, Thomas Dory, Emil A. Kneer
  • Patent number: 11427627
    Abstract: The present invention relates to variant Fc-containing molecules, such as antibodies and Fc-fusion molecules, having glycosylation characteristics favorable to largescale production of therapeutic molecules containing such variant Fc. Described herein are compositions and methods to improve glycosylation maturation of and to minimize the culture process-dependent effects of Fc-containing molecules, e.g., Fc-fusion molecules and antibodies. Creating single and multiple amino acid substitutions within the Fc domain with the aim to improve high mannose processing and glycosylation maturation.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: August 30, 2022
    Assignee: Amgen Inc.
    Inventors: Zhimei Du, Pranhitha Reddy, Randal B. Bass, Feng He, William C. Fanslow, III, Yuling Zhang, Da Ren, Randal R. Ketchem
  • Publication number: 20220247758
    Abstract: Malware signature generation through combination rule mining is disclosed. A set of properties associated, collectively, with a plurality of data samples is received. A first data sample has a first set of properties and a second data sample has a second set of properties. A combination signature comprising at least a first property included in the first set of properties and a second property included in the second set of properties is generated.
    Type: Application
    Filed: June 30, 2021
    Publication date: August 4, 2022
    Inventors: Min Du, Wenjun Hu, William Redington Hewlett, II
  • Patent number: 11401487
    Abstract: This disclosure relates to a cleaning composition that contains 1) at least one redox agent; 2) at least one first chelating agent, the first chelating agent being a polyaminopolycarboxylic acid; 3) at least one metal corrosion inhibitor, the metal corrosion inhibitor being a substituted or unsubstituted benzotriazole; 4) at least one pH adjusting agent, the pH adjusting agent being a base free of a metal ion; and 5) water. This disclosure also relates to a method of using the above composition for cleaning a semiconductor substrate.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: August 2, 2022
    Assignee: Fujifilm Electronics Materials U.S.A., Inc.
    Inventors: Tomonori Takahashi, Bing Du, William A. Wojtczak, Thomas Dory, Emil A. Kneer
  • Patent number: 11386743
    Abstract: A brushless motor system for use with a mechanical reel gaming machine is provided. The brushless motor system includes a reel hub and a reel frame rotationally attached to a center shaft of the reel hub. The brushless motor system also includes a permanent magnet (PM) rotor attached to the reel frame and including a plurality of permanent magnets attached to the PM rotor. The brushless motor system further includes a stator including stator coils attached to the reel hub, the plurality of stator coils are mounted parallel to a surface of the PM rotor at a separation distance. The stator causes the PM rotor to rotate during activation of the stator without direct contact between the stator and the rotor, thereby causing the display of one or more symbols of the plurality of symbols during the wagering game based on the rotation.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: July 12, 2022
    Assignee: Aristocrat Technologies Australia Pty Limited
    Inventors: William Lamb, Thach Du, Charles A. Liter
  • Patent number: 11160366
    Abstract: An embodiment includes a leg height adjustment mechanism that includes a first and second latch arms, a first and second retractors, and an activator. The latch arms each include an engagement structure. The retractors each include a sloped surface and a receiving structure. The receiving structure is engaged with one of the engagement structures of the first or the second latch arms. The first latch arm extends in a first lateral direction and the second latch arm extends a second lateral direction. The second retractor is separated from the first retractor in a second lateral direction that is opposite the first lateral direction. The activator includes angled lower surfaces that are positioned outwardly relative to the sloped surfaces.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: November 2, 2021
    Assignee: Lifetime Products, Inc.
    Inventors: Frank Clegg, Baik Kwang Ho, Leo Cai, William Du
  • Publication number: 20200206456
    Abstract: A lumen extension member is provided for a catheter having a catheter body and an elongate electrode coupled to the catheter body. The elongate electrode defines an electrode lumen extending therethrough. The lumen extension member is positioned within the electrode lumen and is coupled to the catheter body. The lumen extension member includes a tubular member including a sidewall and at least one opening that extends through the sidewall.
    Type: Application
    Filed: January 14, 2020
    Publication date: July 2, 2020
    Inventors: Alan de la Rama, Cary Hata, William Du, Yongxing Zhang
  • Publication number: 20200077785
    Abstract: An embodiment includes a leg height adjustment mechanism that includes a first and second latch arms, a first and second retractors, and an activator. The latch arms each include an engagement structure. The retractors each include a sloped surface and a receiving structure. The receiving structure is engaged with one of the engagement structures of the first or the second latch arms. The first latch arm extends in a first lateral direction and the second latch arm extends a second lateral direction. The second retractor is separated from the first retractor in a second lateral direction that is opposite the first lateral direction. The activator includes angled lower surfaces that are positioned outwardly relative to the sloped surfaces.
    Type: Application
    Filed: November 11, 2019
    Publication date: March 12, 2020
    Applicant: Lifetime Products, Inc.
    Inventors: Frank Clegg, Baik Kwang Ho, Leo Cai, William Du
  • Patent number: 10576244
    Abstract: A lumen extension member is provided for a catheter having a catheter body and an elongate electrode coupled to the catheter body. The elongate electrode defines an electrode lumen extending therethrough. The lumen extension member is positioned within the electrode lumen and is coupled to the catheter body. The lumen extension member includes a tubular member including a sidewall and at least one opening that extends through the sidewall.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: March 3, 2020
    Assignee: ST. JUDE MEDICAL, ATRIAL FIBRILLATION DIVISION, INC.
    Inventors: Alan de la Rama, Cary Hata, William Du, Yongxing Zhang
  • Patent number: 10470561
    Abstract: An embodiment includes a leg height adjustment mechanism that includes a first and second latch arms, a first and second retractors, and an activator. The latch arms each include an engagement structure. The retractors each include a sloped surface and a receiving structure. The receiving structure is engaged with one of the engagement structures of the first or the second latch arms. The first latch arm extends in a first lateral direction and the second latch arm extends a second lateral direction. The second retractor is separated from the first retractor in a second lateral direction that is opposite the first lateral direction. The activator includes angled lower surfaces that are positioned outwardly relative to the sloped surfaces.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: November 12, 2019
    Assignee: Lifetime Products, Inc.
    Inventors: Frank Clegg, Baik Kwang Ho, Leo Cai, William Du
  • Publication number: 20190298054
    Abstract: An embodiment includes a leg height adjustment mechanism that includes a first and second latch arms, a first and second retractors, and an activator. The latch arms each include an engagement structure. The retractors each include a sloped surface and a receiving structure. The receiving structure is engaged with one of the engagement structures of the first or the second latch arms. The first latch arm extends in a first lateral direction and the second latch arm extends a second lateral direction. The second retractor is separated from the first retractor in a second lateral direction that is opposite the first lateral direction. The activator includes angled lower surfaces that are positioned outwardly relative to the sloped surfaces.
    Type: Application
    Filed: March 30, 2018
    Publication date: October 3, 2019
    Inventors: Frank Clegg, Baik Kwang Ho, Leo Cai, William Du
  • Publication number: 20170354797
    Abstract: A lumen extension member is provided for a catheter having a catheter body and an elongate electrode coupled to the catheter body. The elongate electrode defines an electrode lumen extending therethrough. The lumen extension member is positioned within the electrode lumen and is coupled to the catheter body. The lumen extension member includes a tubular member including a sidewall and at least one opening that extends through the sidewall.
    Type: Application
    Filed: June 30, 2017
    Publication date: December 14, 2017
    Inventors: Alan de la Rama, Cary Hata, William Du, Yongxing Zhang
  • Patent number: 9724492
    Abstract: A lumen extension member is provided for a catheter having a catheter body and an elongate electrode coupled to the catheter body. The elongate electrode defines an electrode lumen extending therethrough. The lumen extension member is positioned within the electrode lumen and is coupled to the catheter body. The lumen extension member includes a tubular member including a sidewall and at least one opening that extends through the sidewall.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: August 8, 2017
    Assignee: ST. JUDE MEDICAL, ATRIAL FIBRILLATION DIVISION, INC.
    Inventors: Alan de la Rama, Cary Hata, William Du, Yongxing Zhang
  • Publication number: 20150209547
    Abstract: A lumen extension member is provided for a catheter having a catheter body and an elongate electrode coupled to the catheter body. The elongate electrode defines an electrode lumen extending therethrough. The lumen extension member is positioned within the electrode lumen and is coupled to the catheter body. The lumen extension member includes a tubular member including a sidewall and at least one opening that extends through the sidewall.
    Type: Application
    Filed: February 3, 2015
    Publication date: July 30, 2015
    Inventors: Alan de la Rama, Cary Hata, William Du, Yongxing Zhang
  • Patent number: 8979837
    Abstract: A lumen extension member is provided for a catheter having a catheter body and an elongate electrode coupled to the catheter body. The elongate electrode defines an electrode lumen extending therethrough. The lumen extension member is positioned within the electrode lumen and is coupled to the catheter body. The lumen extension member includes a tubular member including a sidewall and at least one opening that extends through the sidewall.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: March 17, 2015
    Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.
    Inventors: Alan de la Rama, Cary Hata, William Du, Yongxing Zhang
  • Patent number: 8974454
    Abstract: An electrophysiology catheter for use with a steerable introducer sheath includes a flexible catheter body having a proximal end and a distal end and at least one hollow elongate tip electrode disposed at the distal end of the catheter body. The hollow elongate tip electrode includes a sidewall having at least one elongate gap that provides flexibility allowing the tip electrode to bend relative to a longitudinal axis of the catheter body. The catheter body is an independent, non-steerable structure, and can be moved via movement of the steerable introducer through which it is introduced into a patient.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: March 10, 2015
    Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.
    Inventors: Alan de la Rama, Cary Hata, William Du, Yongxing Zhang, James V. Kauphusman, Troy T. Tegg
  • Publication number: 20110288392
    Abstract: An electrophysiology catheter for use with a steerable introducer sheath includes a flexible catheter body having a proximal end and a distal end and at least one hollow elongate tip electrode disposed at the distal end of the catheter body. The hollow elongate tip electrode includes a sidewall having at least one elongate gap that provides flexibility allowing the tip electrode to bend relative to a longitudinal axis of the catheter body. The catheter body is an independent, non-steerable structure, and can be moved via movement of the steerable introducer through which it is introduced into a patient.
    Type: Application
    Filed: December 30, 2010
    Publication date: November 24, 2011
    Inventors: Alan de la Rama, Cary Hata, William Du, Yongxing Zhang, James V. Kauphusman, Troy T. Tegg
  • Publication number: 20100152731
    Abstract: A lumen extension member is provided for a catheter having a catheter body and an elongate electrode coupled to the catheter body. The elongate electrode defines an electrode lumen extending therethrough. The lumen extension member is positioned within the electrode lumen and is coupled to the catheter body. The lumen extension member includes a tubular member including a sidewall and at least one opening that extends through the sidewall.
    Type: Application
    Filed: December 31, 2009
    Publication date: June 17, 2010
    Applicant: IRVINE BIOMEDICAL, INC.
    Inventors: Alan de la Rama, Cary Hata, William Du, Yongxing Zhang
  • Publication number: 20060269893
    Abstract: An apparatus for dispensing material during a dental or endodontic procedure includes a housing having a motor with an output. A needle heating member including a chamber may receive a prefilled needle of dispensing material. A heater at least substantially surrounds the chamber for heating the material in the needle. A plunger is used to expel the material from the needle during activation of the motor. A reusable protective sheath is provided for disposition on the outside of the housing. A method of manufacturing a needle for use and dispensing a material during a dental or endodontic procedure includes drawing a blank of metal having a closed distal end, bending the blank at a desired angle, and removing a portion of the drawn metal from the distal end to open the distal end thereby forming the dispensing needle.
    Type: Application
    Filed: August 7, 2006
    Publication date: November 30, 2006
    Applicant: ORMCO CORPORATION
    Inventors: Carlos Aloise, William Du, Steven Benson, Brenton Lively, Gary Garman
  • Publication number: 20060063126
    Abstract: An apparatus for dispensing material during a dental or endodontic procedure includes a housing having a motor with an output. A needle heating member including a chamber may receive a prefilled needle of dispensing material. A heater at least substantially surrounds the chamber for heating the material in the needle. A plunger is used to expel the material from the needle during activation of the motor. A reusable protective sheath is provided for disposition on the outside of the housing. A method of manufacturing a needle for use and dispensing a material during a dental or endodontic procedure includes drawing a blank of metal having a closed distal end, bending the blank at a desired angle, and removing a portion of the drawn metal from the distal end to open the distal end thereby forming the dispensing needle.
    Type: Application
    Filed: September 16, 2005
    Publication date: March 23, 2006
    Inventors: Carlos Aloise, William Du, L. Buchanan, Steven Benson, Brenton Lively, Gary Garman