Patents by Inventor Hwan-Chang Kim

Hwan-Chang Kim 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: 20240130934
    Abstract: Disclosed is a bulk block for manufacturing a prosthesis having high aesthetics and processability required for one-day dental prosthetic materials, which is a dental composite bulk block comprising a glass ceramic matrix and a polymer, wherein the glass ceramic matrix consists of an amorphous glass matrix and a crystalline phase dispersed in the glass matrix, the crystalline phase comprises as a main crystalline phase at least one selected from a leucite crystalline phase and a lithium disilicate crystalline phase, and has an average particle diameter of 0.01-1.0 ?m, and the polymer is included in an amount of 20-40 wt % with respect to the weight of the total bulk block. The bulk block has the advantages of improved mechanical properties, being capable of preventing microleakage, exhibiting excellent aesthetics, and enabling machining.
    Type: Application
    Filed: December 21, 2023
    Publication date: April 25, 2024
    Applicant: HASS CO., LTD.
    Inventors: Hyung Bong LIM, Sung Min KIM, Sung Ho HA, Moon Chang KIM, Hwan Soon KOH
  • Patent number: 9893440
    Abstract: Disclosed is a vertical type connecting terminal for a storage battery, the vertical type connecting terminal including: a body unit 10 which includes an insertion portion 11 which is formed in a cylindrical shape having a cut-out at one side, an electric power outlet 12 which is formed opposite to the cut-out of the insertion portion 11, and a pair of elastic pieces 13 which extends in a radial direction from both ends of the cut-out of the insertion portion 11 and has therein arc-shaped portions 13?, respectively; a fastening member 20 which includes a washer member 21 which has inside thereof arc-shaped grooves 21? into which the arc-shaped portions 13? of the elastic piece 13 are inserted such that the washer member 21 is coupled to an upper portion of the elastic piece 13 and adjusts an interval between the elastic pieces 13 while moving vertically, a T-shaped tightening bolt 22 which is positioned below the elastic piece 13 and has a body 22a to be inserted into a through hole 21c formed in the washer m
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: February 13, 2018
    Assignee: CHANG HWAN PRECISION TERMINAL CO., LTD.
    Inventor: Hwan Chang Kim
  • Publication number: 20170264031
    Abstract: Disclosed is a vertical type connecting terminal for a storage battery, the vertical type connecting terminal including: a body unit 10 which includes an insertion portion 11 which is formed in a cylindrical shape having a cut-out at one side, an electric power outlet 12 which is formed opposite to the cut-out of the insertion portion 11, and a pair of elastic pieces 13 which extends in a radial direction from both ends of the cut-out of the insertion portion 11 and has therein arc-shaped portions 13?, respectively; a fastening member 20 which includes a washer member 21 which has inside thereof arc-shaped grooves 21? into which the arc-shaped portions 13? of the elastic piece 13 are inserted such that the washer member 21 is coupled to an upper portion of the elastic piece 13 and adjusts an interval between the elastic pieces 13 while moving vertically, a T-shaped tightening bolt 22 which is positioned below the elastic piece 13 and has a body 22a to be inserted into a through hole 21c formed in the washer m
    Type: Application
    Filed: October 18, 2016
    Publication date: September 14, 2017
    Inventor: Hwan Chang KIM
  • Patent number: 9022815
    Abstract: The storage battery connection terminal comprising: an insertion unit formed in a shape of a curved; a clamping unit formed by extending end portions of the insertion; and a power withdrawal unit formed to be extended from the other end portion of the insertion unit, in which the insertion unit, the clamping unit and the power withdrawal unit are manufactured by molding a single panel. The clamping unit includes a lower plate formed to be inclined by extending one end portion of the insertion unit so as to support the clamping bolt, and an upper plate formed to be inclined by extending the other end portion of the insertion unit so as to be disposed in parallel to the lower plate, on which the clamping nut is rested.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: May 5, 2015
    Assignee: Chang Hwan Precision Terminal Co., Ltd.
    Inventor: Hwan Chang Kim
  • Patent number: 8986052
    Abstract: In a storage battery connection terminal comprising: an insertion unit of a cylindrical shape with an open end; a clamping unit for adjusting a diameter of the insertion unit by adjusting a gap between a pair of elastic plates; and a power withdrawal connecting a connection terminal, wherein the insertion unit, the elastic pieces of the clamping unit and the power withdrawal unit are formed in one piece through a forging process, the power withdrawal unit is connected at a position spaced apart from a lower portion of the insertion unit by a predetermined distance, in which a hole for inserting the connection bolt having a head of a rectangular panel shape is formed, and a resting groove with an open side is formed on a bottom surface so that a portion of the head of the connection bolt can be rest.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: March 24, 2015
    Assignee: Chang Hwan Precision Terminal Co., Ltd.
    Inventor: Hwan Chang Kim
  • Publication number: 20140134895
    Abstract: In a storage battery connection terminal comprising: an insertion unit of a cylindrical shape with an open end; a clamping unit for adjusting a diameter of the insertion unit by adjusting a gap between a pair of elastic plates; and a power withdrawal connecting a connection terminal, wherein the insertion unit, the elastic pieces of the clamping unit and the power withdrawal unit are formed in one piece through a forging process, the power withdrawal unit is connected at a position spaced apart from a lower portion of the insertion unit by a predetermined distance, in which a hole for inserting the connection bolt having a head of a rectangular panel shape is formed, and a resting groove with an open side is formed on a bottom surface so that a portion of the head of the connection bolt can be rest.
    Type: Application
    Filed: January 14, 2013
    Publication date: May 15, 2014
    Applicant: CHANG HWAN PRECISION TERMINAL CO., LTD.
    Inventor: Hwan Chang Kim
  • Patent number: 7993168
    Abstract: A battery terminal in which opening of the inserting member of the electrode can be controlled so that the battery electrode is connected promptly and firmly, transformation of the electrode can be avoided by preventing excessively tight connection of the electrode, electric resistance is reduced by maximizing contacting surface of the electrode thereby enhancing electric conductivity, and connecting process is conveniently carried out by fastening the bolt which controls the opening of the inserting member at upper portion of the device.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: August 9, 2011
    Assignee: Chang Hwan Precision Terminal Co., Ltd.
    Inventor: Hwan-Chang Kim
  • Patent number: 6884123
    Abstract: A connecting terminal for a storage battery is disclosed. The connecting terminal includes a fixation plate having a bolt hole extending therethrough; a fixation member insertable into the bolt hole of said fixation plate; a rounded insertion member extending from said fixation plate and having upper and lower elastic bodies defining an insertion hole, the upper and lower elastic bodies each having flanged portions extending toward one another; and a tightening member extending from said insertion member.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: April 26, 2005
    Inventor: Hwan-Chang Kim
  • Publication number: 20030198867
    Abstract: A connecting terminal for a storage battery is disclosed. The connecting terminal includes a fixation plate having a bolt hole extending therethrough; a fixation member insertable into the bolt hole of said fixation plate; a rounded insertion member extending from said fixation plate and having upper and lower elastic bodies defining an insertion hole, the upper and lower elastic bodies each having flanged portions extending toward one another; and a tightening member extending from said insertion member.
    Type: Application
    Filed: December 16, 2002
    Publication date: October 23, 2003
    Inventor: Hwan-Chang Kim
  • Patent number: 6517390
    Abstract: The present invention relates to a connecting terminal for an automobile storage battery, or more particularly, to a connecting terminal for a storage battery, wherein a connecting terminal part 1 connecting to a post-terminal 3 for a storage battery, and connection terminals (7a, 7b, 7c, 7d, 7e) for fixing a wire connector (C) are made attachable or detachable by means of bolts (9a, 9b, 9c, 9d) and nuts (10a, 10b, 10c, 10d) in conjunction with washers (8a, 8b, 8c, 8d); and the insertion holes (4, 4′) of the connecting terminal part 1 are tightened with appropriate tightening force by means of a tightening bolt 5 having a screw thread only at the portion at its lower end, which incorporates into a unit a rubber cap in the shape of a band, which covers the upper and lower portions of the connecting terminal part 1 connected to said post-terminal, and which has protrusions 11″ in the shape of a ring, respectively, around the rim of the bottom side of the piercing hole 11′ of the rubber cap 11,
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: February 11, 2003
    Inventor: Hwan-Chang Kim
  • Publication number: 20020094728
    Abstract: The present invention relates to a connecting terminal for an automobile storage battery, or more particularly, to a connecting terminal for a storage battery, wherein a connecting terminal part 1 connecting to a post-terminal 3 for a storage battery, and connection terminals (7a, 7b, 7c, 7d, 7e) for fixing a wire connector (C) are made attachable or detachable by means of bolts (9a, 9b, 9c, 9d) and nuts (10a, 10b, 10c, 10d) in conjunction with washers (8a, 8b, 8c, 8d); and the insertion holes (4, 4′) of the connecting terminal part 1 are tightened with appropriate tightening force by means of a tightening bolt 5 having a screw thread only at the portion at its lower end, which incorporates into a unit a rubber cap in the shape of a band, which covers the upper and lower portions of the connecting terminal part 1 connected to said post-teminal, and which has protrusions 11″ in the shape of a ring, respectively, around the rim of the bottom side of the piercing hole 11′ of the rubber cap 11,
    Type: Application
    Filed: December 10, 2001
    Publication date: July 18, 2002
    Inventor: Hwan-Chang Kim
  • Patent number: D465454
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: November 12, 2002
    Inventor: Hwan-Chang Kim
  • Patent number: D488129
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: April 6, 2004
    Inventor: Hwan-Chang Kim