Patents by Inventor Chang Don PARK

Chang Don PARK 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: 10923995
    Abstract: A core laminator of an adhesive laminate core manufacturing apparatus includes a heating unit heating an adhesive interposed between laminar members to integrate the laminar members to form a laminate core, a pinch unit rotatably provided at a lower side of the heating unit which applies a lateral pressure to the laminate core, a squeeze unit including a cylinder rotatably provided at an upper side of the heating unit and a squeezer fixed in the cylinder to align the laminar members in a straight line, a guide provided in the heating unit for guiding a movement of the laminar members, and a driving unit for selectively rotating the pinch unit and the squeeze unit.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: February 16, 2021
    Assignee: POSCO DAEWOO CORPORATION
    Inventors: Il Gwen Chung, Duk Kyoun Woo, Chan Jung Kim, Chang Don Park
  • Patent number: 10672552
    Abstract: Disclosed is an adhesive laminate core manufacturing apparatus for successively forming lamina members of a predetermined shape while allowing a strip-shaped material, of which the surface is coated with an adhesive layer, to pass therethrough, and successively manufacturing laminate cores comprising the lamina members integrated, per predetermined sheet, by interlaminar bonding. The adhesive laminate core manufacturing apparatus according to one aspect of the present invention comprises: a protrusion forming unit pressing the material for the delamination of the laminate cores, so as to form interlaminar division protrusions on the surface of the material at each predetermined position along the longitudinal direction of the material; a blanking unit blanking the material so as to successively form the lamina members; and a lamination unit integrating the lamina members so as to successively manufacture the laminate cores.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: June 2, 2020
    Assignee: POSCO DAEWOO CORPORATION
    Inventors: Il Gwen Chung, Sae Jong Lim, Jang Hwan Seal, Seung Chul Lee, Chang Don Park, Jung Gyu Chi, Jae Young Lee
  • Patent number: 10350868
    Abstract: Disclosed herein is a bonded-type laminated core member manufacturing apparatus comprising an adhesive application unit to apply an adhesive to a material being continuously transferred, and a laminating unit to integrate laminar members laminated within a laminating hole by blanking the material, a laminated core member being manufactured by interlayer adhesion between the laminar members, wherein the laminating unit includes a high-frequency heater to harden the adhesive located between the laminar members, the high-frequency heater including a coil wound on the circumference of a hardening hole which accommodates the laminar members and forming a passage of high-frequency current. In accordance with the present invention, the adhesive is rapidly hardened by high-frequency induction heating and thus the integration time of the laminated core member is shortened, and accuracy of the laminating unit, which integrates the laminar members, i.e.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: July 16, 2019
    Assignee: POSCO TMC CO., LTD.
    Inventors: Il Gwen Chung, Suk Jo Kang, Chang Don Park, Ki Hwan You
  • Publication number: 20190109521
    Abstract: Disclosed is a core laminator of an adhesive laminate core manufacturing apparatus integrating laminar members to pass therethrough, thereby forming laminate cores.
    Type: Application
    Filed: June 16, 2016
    Publication date: April 11, 2019
    Applicant: POSCO DAEWOO CORPORATION
    Inventors: Il Gwen CHUNG, Duk Kyoun WOO, Chan Jung KIM, Chang Don PARK
  • Publication number: 20180374625
    Abstract: Disclosed is an adhesive laminate core manufacturing apparatus for successively forming lamina members of a predetermined shape while allowing a strip-shaped material, of which the surface is coated with an adhesive layer, to pass therethrough, and successively manufacturing laminate cores comprising the lamina members integrated, per predetermined sheet, by interlaminar bonding. The adhesive laminate core manufacturing apparatus according to one aspect of the present invention comprises: a protrusion forming unit pressing the material for the delamination of the laminate cores, so as to form interlaminar division protrusions on the surface of the material at each predetermined position along the longitudinal direction of the material; a blanking unit blanking the material so as to successively form the lamina members; and a lamination unit integrating the lamina members so as to successively manufacture the laminate cores.
    Type: Application
    Filed: August 11, 2016
    Publication date: December 27, 2018
    Applicant: POSCO DAEWOO CORPORATION
    Inventors: Il Gwen CHUNG, Sae Jong LIM, Jang Hwan SEAL, Seung Chul LEE, Chang Don PARK, Jung Gyu CHI, Jae Young LEE
  • Publication number: 20170136756
    Abstract: Disclosed herein is a bonded-type laminated core member manufacturing apparatus comprising an adhesive application unit to apply an adhesive to a material being continuously transferred, and a laminating unit to integrate laminar members laminated within a laminating hole by blanking the material, a laminated core member being manufactured by interlayer adhesion between the laminar members, wherein the laminating unit includes a high-frequency heater to harden the adhesive located between the laminar members, the high-frequency heater including a coil wound on the circumference of a hardening hole which accommodates the laminar members and forming a passage of high-frequency current. In accordance with the present invention, the adhesive is rapidly hardened by high-frequency induction heating and thus the integration time of the laminated core member is shortened, and accuracy of the laminating unit, which integrates the laminar members, i.e.
    Type: Application
    Filed: March 31, 2015
    Publication date: May 18, 2017
    Applicant: POSCO TMC CO., LTD.
    Inventors: Il Gwen CHUNG, Suk Jo KANG, Chang Don PARK, Ki Hwan YOU