Patents by Inventor Chung Jen Chang

Chung Jen 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: 11128077
    Abstract: An electrical connector may include a first connecting member and a second connecting member adapted to be connected together. The first connecting member comprises a socket having a connecting surface, and the connecting surface comprises two first receiving slots and a second receiving slot. An outer surface of the socket has at least a guiding groove, and each of the first receiving slot and the second receiving slot comprises at least a conductive terminal installed therein. The socket is surrounded by an outer ring portion, and a peripheral groove is formed between the socket and the outer ring portion. The second connecting member has a base and an inner ring portion, and the base has two first blades and a second blade which are surrounded by the inner ring portion, and an inner periphery of the inner ring portion has at least a guiding piece.
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: September 21, 2021
    Assignee: AVERTRONICS INC.
    Inventors: Austin Lai, Chi-I Lai, Chao-I Chien, Chung-Jen Chang
  • Patent number: 11081825
    Abstract: A double-pole butting connector has a male connector and a female connector. The male connector has at least one first pole with a first front side and a first back side. The female connector having at least one second pole with a second front side and a second back side. The first pole and the second pole have an identical thickness. The second pole is placed in an insertion groove, and the insertion groove has a positioning strip facing the second back side of the second pole, and the positioning strip makes contact with the second back side with an allowable deformation angle between the positioning strip and the second back side.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: August 3, 2021
    Assignee: AVERTRONICS INC.
    Inventors: Austin Lai, Chao-I Chien, Chi-I Lai, Chung-Jen Chang
  • Patent number: 11075483
    Abstract: An electric connector structure has a male connecting member and a female connecting member. The maximum swing and vibration space is provided between the male connecting member and the female connecting member, and then the pressure is locally compressed through the pressing face and the blocking face. The protrusion partially interferes with the power socket, thereby forming a three-point hard contact inside the male connecting member and the female connecting member, so that the male connecting member and the female connecting member can be formed at the three-point hard contact position. The limit of vibration or swing, thereby effectively reducing the amplitude of the swing or vibration of the male connecting member and the female connecting member without completely preventing the swing or vibration of the male connecting member and the female connecting member, so as to eliminate the external forces and achieve protection of the signal pin.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: July 27, 2021
    Assignee: AVERTRONICS INC.
    Inventors: Austin Lai, Chi-I Lai, Chung-Jen Chang
  • Publication number: 20210057846
    Abstract: An electric connector structure has a male connecting member and a female connecting member. The maximum swing and vibration space is provided between the male connecting member and the female connecting member, and then the pressure is locally compressed through the pressing face and the blocking face. The protrusion partially interferes with the power socket, thereby forming a three-point hard contact inside the male connecting member and the female connecting member, so that the male connecting member and the female connecting member can be formed at the three-point hard contact position. The limit of vibration or swing, thereby effectively reducing the amplitude of the swing or vibration of the male connecting member and the female connecting member without completely preventing the swing or vibration of the male connecting member and the female connecting member, so as to eliminate the external forces and achieve protection of the signal pin.
    Type: Application
    Filed: March 30, 2020
    Publication date: February 25, 2021
    Inventors: Austin Lai, Chi-I Lai, Chung-Jen Chang
  • Patent number: 10276972
    Abstract: A power connector may comprise a first connecting member and a second connecting member. The first connecting member has a plurality of first terminals, and a connecting base formed at an end of the second connecting member comprises a plurality of L-shaped slots thereon, and each of the L-shaped slots has a second terminal secured therein. When the first terminals and the second terminals are connected, the first connecting member and the second connecting member are electrically connected. The other end of the second connecting member has a first base which comprises a connecting surface and an assembling surface, and a second frame protruding from the assembling surface has a first housing therein. A cover is disposed in the first housing, and an outer periphery of the cover has a first packing groove filled with a hot-melt adhesive layer to achieve sealing effect.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: April 30, 2019
    Assignee: Avertronics, Inc.
    Inventors: Austin Lai, Chi-I Lai, Chung Jen Chang
  • Patent number: 9637646
    Abstract: The present invention provides a conductive coating composition, which contains: a conductive organic polymer, a non-conductive organic compound, a solvent and optionally a curing agent; where the content of the conductive organic polymer is about 10% to about 50%, based on the total weight of the solids content in the composition. The present invention also provides a conductive film, which is formed by drying the conductive coating composition. The conductive film has a surface resistivity lower than 1000 ?/sq and a total light transmittance greater than 80%. The conductive coating composition of the present invention can be used as an electromagnetic interference shielding material or an electrode material, and can be applied to various electronic products.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: May 2, 2017
    Assignee: ETERNAL MATERIALS CO., LTD.
    Inventors: Wei-Kai Chen, Tu-Yi Wu, Chung-Jen Chang, Meng-Tso Chen
  • Publication number: 20150160534
    Abstract: A lens cap assembly includes a hood device, a connecting ring and a ferrule device. The connecting ring is used to rotationally connect the hood device to a barrel of a lens assembly. The ferrule device is movable between a shrunk position and an expanded position. In the shrunk position, the ferrule device prevents the hood device from rotation on the barrel. In the expanded position, the ferrule device allows the rotation of the hood device on the barrel.
    Type: Application
    Filed: December 5, 2013
    Publication date: June 11, 2015
    Inventor: CHUNG JEN CHANG
  • Publication number: 20130284982
    Abstract: The present invention provides a conductive coating composition, which contains: a conductive organic polymer, a non-conductive organic compound, a solvent and optionally a curing agent; where the content of the conductive organic polymer is about 10% to about 50%, based on the total weight of the solids content in the composition. The present invention also provides a conductive film, which is formed by drying the conductive coating composition. The conductive film has a surface resistivity lower than 1000 ?/sq and a total light transmittance greater than 80%. The conductive coating composition of the present invention can be used as an electromagnetic interference shielding material or an electrode material, and can be applied to various electronic products.
    Type: Application
    Filed: April 9, 2013
    Publication date: October 31, 2013
    Applicant: Eternal Chemical Co., Ltd.
    Inventors: WEI-KAI CHEN, TU-YI WU, CHUNG-JEN CHANG, MENG-TSO CHEN
  • Patent number: 8506183
    Abstract: Disclosed is a hood-cover combination for a lens of a camera. The hood-cover combination includes a hood, two covers and at least one button. The hood includes at least one canopy formed thereon. The covers are pivotally connected to the hood between an opening position and a closing position. The button is provided on the hood. The button is normally in a locking position for locking the covers in the opening position. The button is movable to a releasing position for allowing the pivoting of the cover to the opening position.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: August 13, 2013
    Inventor: Chung Jen Chang
  • Publication number: 20130170036
    Abstract: A lens cap includes a ring detachably mounted onto a lens of an optical apparatus and a pair of linkage sets pivotally connected to the ring, wherein the two linkage sets are diametrically corresponding to each other and respectively connected to a covering structure. A sleeve is longitudinally and slidably sleeved on the ring and the covering structure is connected to sleeve. As a result, the covering structure selectively opens/closes the sleeve when the sleeve is reciprocally moved relative to the ring. The covering structure and the sleeve are used as a lens cap when the covering structure closing the sleeve, and used as a lens hood when the covering structure is opened.
    Type: Application
    Filed: January 2, 2012
    Publication date: July 4, 2013
    Inventor: CHUNG JEN CHANG
  • Patent number: 8475063
    Abstract: A lens cap includes a ring detachably mounted onto a lens of an optical apparatus and a pair of linkage sets pivotally connected to the ring, wherein the two linkage sets are diametrically corresponding to each other and respectively connected to a covering structure. A sleeve is longitudinally and slidably sleeved on the ring and the covering structure is connected to sleeve. As a result, the covering structure selectively opens/closes the sleeve when the sleeve is reciprocally moved relative to the ring. The covering structure and the sleeve are used as a lens cap when the covering structure closing the sleeve, and used as a lens hood when the covering structure is opened.
    Type: Grant
    Filed: January 2, 2012
    Date of Patent: July 2, 2013
    Inventor: Chung Jen Chang
  • Publication number: 20130051784
    Abstract: Disclosed is a hood-cover combination for a lens of a camera. The hood-cover combination includes a hood, two covers and at least one button. The hood includes at least one canopy formed thereon. The covers are pivotally connected to the hood between an opening position and a closing position. The button is provided on the hood. The button is normally in a locking position for locking the covers in the opening position. The button is movable to a releasing position for allowing the pivoting of the cover to the opening position.
    Type: Application
    Filed: August 25, 2011
    Publication date: February 28, 2013
    Inventor: Chung Jen Chang
  • Publication number: 20120257885
    Abstract: Disclosed is a hood-cover combination for a lens of a camera. The hood-cover combination includes a hood for detachable attachment to a portion of the camera around the lens, a frame rotationally located in the hood, two covers pivotally connected to the frame and two springs for biasing the covers from the frame so that the frame is kept open.
    Type: Application
    Filed: April 8, 2011
    Publication date: October 11, 2012
    Inventor: Chung Jen Chang
  • Patent number: 8280241
    Abstract: Disclosed is a hood-cover combination for a lens of a camera. The hood-cover combination includes a hood for detachable attachment to a portion of the camera around the lens, a frame rotationally located in the hood, two covers pivotally connected to the frame and two springs for biasing the covers from the frame so that the frame is kept open.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: October 2, 2012
    Inventor: Chung Jen Chang