Patents by Inventor Sejun JANG

Sejun JANG 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: 20230364816
    Abstract: A razor assembly is proposed. The razor assembly may include a cartridge including at least one blade, and a handle assembly. The handle assembly may include a handle top part positioned at an upper part in an extending direction of the handle assembly. The handle assembly may also include a heating element configured to simultaneously heat the handle top part and the at least one blade in a contactless manner.
    Type: Application
    Filed: July 27, 2023
    Publication date: November 16, 2023
    Inventors: Sejun JANG, Youngjin LEE, Sung Hee SON, Hyo Sun AHN
  • Patent number: 11745370
    Abstract: A razor assembly is disclosed. The present disclosure in at least one embodiment provides a razor assembly, comprising: a cartridge including at least one blade; and a handle assembly, wherein the handle assembly includes: a heating bar disposed on the handle assembly; at least one induction coil which is disposed under the heating bar and configured to heat the heating bar in a contactless manner; and a grip portion.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: September 5, 2023
    Assignee: DORCO CO., LTD.
    Inventors: Sejun Jang, Youngjin Lee, Sung Hee Son, Hyo Sun Ahn
  • Publication number: 20220016794
    Abstract: A razor assembly is disclosed. The present disclosure in at least one embodiment provides a razor assembly, comprising: a cartridge including at least one blade; and a handle assembly, wherein the handle assembly includes: a heating bar disposed on the handle assembly; at least one induction coil which is disposed under the heating bar and configured to heat the heating bar in a contactless manner; and a grip portion.
    Type: Application
    Filed: September 8, 2021
    Publication date: January 20, 2022
    Applicant: DORCO CO., LTD.
    Inventors: Sejun JANG, Youngjin LEE, Sung Hee SON, Hyo Sun AHN
  • Patent number: 11123890
    Abstract: Provided is a razor assembly including a cartridge including at least one blade and a handle assembly including an electric power source, a printed circuit board (PCB) electrically coupled to the electric power source, and at least one induction coil coupled to the PCB, wherein the at least one induction coil is configured to cause at least a portion of the cartridge to be heated in a non-contact manner, wherein the cartridge is detachably coupled to the handle assembly.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: September 21, 2021
    Assignee: DORCO CO., LTD.
    Inventors: Sejun Jang, Youngjin Lee
  • Publication number: 20210069924
    Abstract: Provided is a razor assembly including a cartridge including at least one blade and a handle assembly including an electric power source, a printed circuit board (PCB) electrically coupled to the electric power source, and at least one induction coil coupled to the PCB, wherein the at least one induction coil is configured to cause at least a portion of the cartridge to be heated in a non-contact manner, wherein the cartridge is detachably coupled to the handle assembly.
    Type: Application
    Filed: September 11, 2019
    Publication date: March 11, 2021
    Applicant: DORCO CO., LTD.
    Inventors: Sejun JANG, Youngjin LEE
  • Patent number: 10843357
    Abstract: A razor handle assembly includes a connector which is detachably coupled to a razor cartridge; a razor handle which is elongated along a longitudinal axis and coupled to the connector such that the connector is capable of pivoting about a rotation axis perpendicular to both the longitudinal axis and a transverse axis along which the razor cartridge is elongated, the transverse axis being perpendicular to the longitudinal axis; and an elastic member having a first end engaged with a first fixing portion formed in the connector and a second end engaged with a second fixing portion formed in the razor handle. When the connector pivots about the rotation axis with respect to the razor handle, the elastic member is deformed to provide a restoring force that causes the connector to return to a neutral position at which the transverse axis is perpendicular to the longitudinal axis.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: November 24, 2020
    Assignee: DORCO CO., LTD.
    Inventor: Sejun Jang
  • Publication number: 20190152078
    Abstract: Provided is a razor assembly including: one or more razor blades, each having a cutting edge; a housing which accommodates the razor blades in a transverse direction perpendicular to a shaving direction; a connector which is detachably coupled to the housing at the back of the housing; a razor handle which is coupled to the connector such that the connector can pivot about a rotation axis perpendicular to the transverse direction; and an elastic member which has a first end engaged with a first fixing portion formed in the connector and a second end engaged with a second fixing portion formed in the razor handle, wherein when the connector pivots about the rotation axis with respect to the razor handle, the elastic member is deformed to provide a restoring force that causes the connector to return to a neutral position.
    Type: Application
    Filed: November 16, 2018
    Publication date: May 23, 2019
    Applicant: DORCO CO., LTD.
    Inventor: Sejun JANG