Patents by Inventor Hua-Chun Chang

Hua-Chun Chang 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: 11431135
    Abstract: An electrical connector structure includes an insulating housing, a first terminal set, a second terminal set, a third terminal set and at least one conductive member. The first, second and third terminal sets are disposed in the insulating housing. Each of the first and second terminal sets includes a plurality of signal terminals and at least one ground terminal. The conductive member is electrically connected to the ground terminals of the first and second terminal sets, and is not electrically connected to the third terminal set.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: August 30, 2022
    Assignee: SPEED TECH CORP.
    Inventors: Chu-Cheng Wu, I-Ting Hsieh, Cheng-Hsiang Hsueh, Kuo-Hua Huang, Hua-Chun Chang
  • Patent number: 11189960
    Abstract: An electrical connector includes an outer case, an insulation base, an elastic airtight member and a conductive terminal. The outer case includes a main frame, and a partition member formed within the main frame to define a first slot and a second slot therein. The insulation base is fixedly connected to the main frame, and disposed within the second slot. The elastic airtight member is disposed within the second slot, and interposed between the insulation base and the partition member. The conductive terminal is disposed within the insulation base, the elastic airtight member and the partition member, and extends into the first slot from the partition member, and extending outwards the insulation base from the second slot.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: November 30, 2021
    Assignee: SPEED TECH CORP.
    Inventors: Chien-Yu Hsu, Hui-Hsueh Chiang, Hua-Chun Chang
  • Publication number: 20210135405
    Abstract: An electrical connector structure includes an insulating housing, a first terminal set, a second terminal set, a third terminal set and at least one conductive member. The first, second and third terminal sets are disposed in the insulating housing. Each of the first and second terminal sets includes a plurality of signal terminals and at least one ground terminal. The conductive member is electrically connected to the ground terminals of the first and second terminal sets, and is not electrically connected to the third terminal set.
    Type: Application
    Filed: October 30, 2020
    Publication date: May 6, 2021
    Applicant: SPEED TECH CORP.
    Inventors: Chu-Cheng WU, I-Ting HSIEH, Cheng-Hsiang HSUEH, Kuo-Hua HUANG, Hua-Chun CHANG
  • Publication number: 20210006006
    Abstract: An electrical connector includes an outer case, an insulation base, an elastic airtight member and a conductive terminal. The outer case includes a main frame, and a partition member formed within the main frame to define a first slot and a second slot therein. The insulation base is fixedly connected to the main frame, and disposed within the second slot. The elastic airtight member is disposed within the second slot, and interposed between the insulation base and the partition member. The conductive terminal is disposed within the insulation base, the elastic airtight member and the partition member, and extends into the first slot from the partition member, and extending outwards the insulation base from the second slot.
    Type: Application
    Filed: July 2, 2020
    Publication date: January 7, 2021
    Applicant: SPEED TECH CORP.
    Inventors: Chien-Yu HSU, Hui-Hsueh CHIANG, Hua-Chun CHANG
  • Patent number: 9553412
    Abstract: The present disclosure provides a main connector including a shield housing, an insulated body, a plurality of metal terminals, and a shielding plate. The shield housing has an opening for a butt joint connector to insert. The insulated body is encapsulated inside the shield housing. Each of the metal terminals has a contact portion and a fixing portion. The contact portion is arranged in two rows inside the opening of the shield housing, and the fixing portion is fixed to the insulated body. The shielding plate has at least one elastic arm with bending formation and is disposed between two rows of the metal terminals.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: January 24, 2017
    Assignee: SPEED TECH CORP.
    Inventors: Chien-Yu Hsu, Hua-Chun Chang
  • Publication number: 20160276782
    Abstract: A grounding structure of a thin-typed connector includes an insulating main body, a first terminal group, a second terminal group, a shielding case and a grounding sheet. The insulating main body is disposed with a base portion and a tongue plate. The grounding sheet is fixed between the base portion and the tongue plate. The first and the second terminal groups are accommodated in the insulating main body which is accommodated in the shielding case. The grounding sheet is formed to a shielding plate and a first flat plate from a metal sheet. The shielding plate is located on the tongue plate. The first flat plate is located on the base portion. Two sides of the main body of the grounding sheet bend and extend outwards, and are respectively disposed with a snapping portion. The snapping portions are configured to mutually snap and fix with a docking connector.
    Type: Application
    Filed: March 16, 2016
    Publication date: September 22, 2016
    Inventors: Hua-Chun CHANG, Hsien-Chang LIN
  • Publication number: 20160149347
    Abstract: The present disclosure provides a main connector including a shield housing, an insulated body, a plurality of metal terminals, and a shielding plate. The shield housing has an opening for a butt joint connector to insert. The insulated body is encapsulated inside the shield housing. Each of the metal terminals has a contact portion and a fixing portion. The contact portion is arranged in two rows inside the opening of the shield housing, and the fixing portion is fixed to the insulated body. The shielding plate has at least one elastic arm with bending formation and is disposed between two rows of the metal terminals.
    Type: Application
    Filed: November 13, 2015
    Publication date: May 26, 2016
    Inventors: Chien-Yu HSU, Hua-Chun CHANG
  • Patent number: 9337588
    Abstract: A universal serial bus connector includes a shielding case, an insulating main body, a first terminal group, a second terminal group and a grounding sheet. The insulating main body is accommodated and installed in the shielding case. The first terminal group is accommodated in the insulating main body. The second terminal group is accommodated in the insulating main body. The grounding sheet is fixed on the insulating main body. A surface of the shielding case has at least one bump. The bump is recessed inwards from the surface, such that the bump is electrically connected with the grounding sheet.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: May 10, 2016
    Assignee: SPEED TECH CORP.
    Inventor: Hua-Chun Chang
  • Patent number: 9306345
    Abstract: A high-density cable end connector for transmitting high-frequency signals includes a first sub-assembly, a second sub-assembly, a printed circuit board, a shielding plate, and a shielding shell. The first sub-assembly includes first contacts, a first insulator, and a first cover body. The second sub-assembly includes second contacts, a second insulator, and a second cover body. The printed circuit board includes pins connected to the first contacts and the second contacts. The shielding shell at least partially surrounds peripheries of the first sub-assembly and the second sub-assembly. The shielding plate is disposed between the first contacts and the second contacts and fixed to the first insulator or the second insulator for insulating the first contacts from the second contacts. Therefore, the high-density cable end connector is prevented from having crosstalk resulted by high frequency signals between the first contacts and the second contacts.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: April 5, 2016
    Assignee: SPEED TECH CORP.
    Inventors: Chien-Yu Hsu, Hua-Chun Chang
  • Patent number: 9306336
    Abstract: A high frequency connector includes an insulator, a plurality of terminals, a shielding case and a grounding conductor. The insulator includes a tongue plate portion and a base portion. The terminals respectively have a contact portion arranged on a surface of the tongue plate portion. The contact portion is electrically connected with a docking connector. The shielding case covers outside the tongue plate portion and the base portion. A surface of the base portion is closer to the shielding case than the surface of the tongue plate portion. The grounding conductor is formed to a shielding plate and a first flat plate from a metal sheet. The shielding plate is at least partially fixed within the tongue plate portion. The first flat plate is at least partially exposed from the base portion. The shielding plate and the first flat plate are located in a region covered by the shielding case.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: April 5, 2016
    Assignee: SPEED TECH CORP.
    Inventors: Hua-Chun Chang, Hsien-Chang Lin
  • Publication number: 20150349447
    Abstract: A contact strip structure includes a fixing portion, a plurality of first terminals, a plurality of second terminals and a strip. The first terminals and the second terminals are fixed to the fixing portion. Two ends of the strip respectively extend in parallel from outsides of the first terminals and the second terminals for a distance, and then vertically extend and mutually contact with the first terminals and the second terminals to form at least one bridge. The first terminals and the second terminals are synchronously fixed to the fixing portion by insert molding.
    Type: Application
    Filed: April 28, 2015
    Publication date: December 3, 2015
    Inventors: Hua-Chun CHANG, Chien-Yu HSU
  • Publication number: 20150311636
    Abstract: A high frequency connector includes an insulator, a plurality of terminals, a shielding case and a grounding conductor. The insulator includes a tongue plate portion and a base portion. The terminals respectively have a contact portion arranged on a surface of the tongue plate portion. The contact portion is electrically connected with a docking connector. The shielding case covers outside the tongue plate portion and the base portion. A surface of the base portion is closer to the shielding case than the surface of the tongue plate portion. The grounding conductor is formed to a shielding plate and a first flat plate from a metal sheet. The shielding plate is at least partially fixed within the tongue plate portion. The first flat plate is at least partially exposed from the base portion. The shielding plate and the first flat plate are located in a region covered by the shielding case.
    Type: Application
    Filed: February 25, 2015
    Publication date: October 29, 2015
    Inventors: Hua-Chun CHANG, Hsien-Chang LIN
  • Publication number: 20150311645
    Abstract: A universal serial bus connector includes a shielding case, an insulating main body, a first terminal group, a second terminal group and a grounding sheet. The insulating main body is accommodated and installed in the shielding case. The first terminal group is accommodated in the insulating main body. The second terminal group is accommodated in the insulating main body. The grounding sheet is fixed on the insulating main body. A surface of the shielding case has at least one bump. The bump is recessed inwards from the surface, such that the bump is electrically connected with the grounding sheet.
    Type: Application
    Filed: March 25, 2015
    Publication date: October 29, 2015
    Inventor: Hua-Chun CHANG
  • Publication number: 20150236457
    Abstract: A high-density cable end connector for transmitting high-frequency signals includes a first sub-assembly, a second sub-assembly, a printed circuit board, a shielding plate, and a shielding shell. The first sub-assembly includes first contacts, a first insulator, and a first cover body. The second sub-assembly includes second contacts, a second insulator, and a second cover body. The printed circuit board includes pins connected to the first contacts and the second contacts. The shielding shell at least partially surrounds peripheries of the first sub-assembly and the second sub-assembly. The shielding plate is disposed between the first contacts and the second contacts and fixed to the first insulator or the second insulator for insulating the first contacts from the second contacts. Therefore, the high-density cable end connector is prevented from having crosstalk resulted by high frequency signals between the first contacts and the second contacts.
    Type: Application
    Filed: January 21, 2015
    Publication date: August 20, 2015
    Inventors: Chien-Yu HSU, Hua-Chun CHANG
  • Patent number: 8808029
    Abstract: A high density connector structure for transmitting high frequency signals having a first sub-assembly, a second sub-assembly, a shield plate, and a shield shell is disclosed. The first sub-assembly has a plurality of first contacts held in a first insulator, and the second sub-assembly has a plurality of second contacts held in a second insulator. The shield plate is positioned between the first and second contacts. At least one resilient arm extends from said shield plate and contacts at least one of the first contacts of the first sub-assembly. The shield shell at least partially surrounds the periphery of the first and second sub-assemblies.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: August 19, 2014
    Assignee: Speed Tech Corp.
    Inventors: Josue Castillo, James Patrick Young, Li-Sen Chen, Steven Wong, Hua-Chun Chang
  • Publication number: 20140024257
    Abstract: A high density connector structure for transmitting high frequency signals having a first sub-assembly, a second sub-assembly, a shield plate, and a shield shell is disclosed. The first sub-assembly has a plurality of first contacts held in a first insulator, and the second sub-assembly has a plurality of second contacts held in a second insulator. The shield plate is positioned between the first and second contacts. At least one resilient arm extends from said shield plate and contacts at least one of the first contacts of the first sub-assembly. The shield shell at least partially surrounds the periphery of the first and second sub-assemblies.
    Type: Application
    Filed: February 7, 2013
    Publication date: January 23, 2014
    Applicant: SPEED TECH CORP.
    Inventors: Josue CASTILLO, James Patrick YOUNG, Li-Sen CHEN, Steven WONG, Hua-Chun CHANG
  • Patent number: 8164405
    Abstract: A low-profile multi-directional key switch structure is disclosed, which includes a magnetic element, a key cap for receiving at least a portion of the magnetic element therein, an elastic element centered near the key cap, and a protection pad disposed between the extension portion of the key cap and the elastic element. The key cap has an extension portion protruding outwardly. The elastic element includes a central region and a spiral structure connected with the central region. The spiral structure is extended from the central region outwardly, and the elastic element is centered near the key cap by the central region for limiting a movement of the key cap and the magnetic element to an original location of the elastic element. The protection pad covers a most portion of the spiral structure of the elastic element, and a receiving opening is disposed in a center of the protection pad for passing the magnetic element through.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: April 24, 2012
    Assignee: Speed Tech Corp.
    Inventors: Chien-Yu Hsu, Hua-Chun Chang
  • Publication number: 20110009001
    Abstract: An improved Universal Serial Bus (USB) connector mounted on a print circuit board for transmitting electric signals between a dock connector and the print circuit board. The improved Universal Serial Bus connector comprises a set of first terminals, a set of second terminals, an insulator, and a shielding shell. Each of the first terminals and the second terminals is respectively fixed on the insulator. The insulator includes a cap, on which each of the first terminals and the second terminals is disposed, and is substantially enclosed by the shielding shell.
    Type: Application
    Filed: May 13, 2010
    Publication date: January 13, 2011
    Applicant: SPEED TECH CORP.
    Inventors: Chih-Cheng CHEN, Hua-Chun CHANG
  • Publication number: 20100314230
    Abstract: A low-profile multi-directional key switch structure is disclosed, which includes a magnetic element, a key cap for receiving at least a portion of the magnetic element therein, an elastic element centered near the key cap, and a protection pad disposed between the extension portion of the key cap and the elastic element. The key cap has an extension portion protruding outwardly. The elastic element includes a central region and a spiral structure connected with the central region. The spiral structure is extended from the central region outwardly, and the elastic element is centered near the key cap by the central region for limiting a movement of the key cap and the magnetic element to an original location of the elastic element. The protection pad covers a most portion of the spiral structure of the elastic element, and a receiving opening is disposed in a center of the protection pad for passing the magnetic element through.
    Type: Application
    Filed: October 9, 2009
    Publication date: December 16, 2010
    Inventors: Chien-Yu Hsu, Hua-Chun Chang
  • Patent number: 7527526
    Abstract: An electrical connector being adapted to be matched with a complementary device, and comprising at least an insulating housing, a terminal set and a shielding case. The shielding case substantially surrounds the insulating housing and the terminal set, the shielding case comprising at least a body and a back case. The body of the shielding case surrounds the upper, lower, left and right sides of the insulating housing, and the back case of the shielding case surrounds the back of the insulating housing substantially. The invention providing at least a stopping mechanism to apply a pressing force on the insulating housing, and the direction of the pressing force is opposite to what the complementary device plugging in.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: May 5, 2009
    Assignee: Speed Tech Corp.
    Inventors: Li-Sen Chen, Hua-Chun Chang