Patents by Inventor Min Joo Park

Min Joo 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: 11472053
    Abstract: The present disclosure provides a razor blade coating by a physical vapor deposition method through performing a deposition with a single composite target composed of dissimilar materials with their area ratio defined to be varied in the single composite target in the direction of transferring the razor blade subject to the deposition, thereby forming a single layer in which the composition ratio of the dissimilar materials gradually changes in the thickness direction of the coating layer to improve the durability of the razor blade coating layer.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: October 18, 2022
    Assignee: DORCO CO., LTD.
    Inventors: Min Joo Park, Sung Hoon Oh, Seong Won Jeong
  • Publication number: 20210094199
    Abstract: A shaving blade is disclosed. According to one embodiment of the present disclosure, the shaving blade includes a substrate having a cutting edge provided with a sharp substrate tip, wherein a thickness T16 of the substrate measured at a distance D16, which is 16 micrometers from the substrate tip, is in a range from 2.41 micrometers to 3.76 micrometers.
    Type: Application
    Filed: August 6, 2020
    Publication date: April 1, 2021
    Applicant: DORCO CO., LTD.
    Inventors: Hyun Ju LEE, Kwang Choon RYU, Min Joo PARK
  • Publication number: 20200368928
    Abstract: The present disclosure provides a razor blade coating by a physical vapor deposition method through performing a deposition with a single composite target composed of dissimilar materials with their area ratio defined to be varied in the single composite target in the direction of transferring the razor blade subject to the deposition, thereby forming a single layer in which the composition ratio of the dissimilar materials gradually changes in the thickness direction of the coating layer to improve the durability of the razor blade coating layer.
    Type: Application
    Filed: May 21, 2020
    Publication date: November 26, 2020
    Applicant: DORCO CO., LTD.
    Inventors: Min Joo PARK, Sung Hoon OH, Seong Won JEONG
  • Publication number: 20200368929
    Abstract: The present disclosure provides an improvement to razor blade coating by a physical vapor deposition method, by forming a hard coating layer as a thin coating layer in which chromium boride, which is a nanocrystalline structure having high hardness, is dispersed in an amorphous mixture of chromium and boron, thereby improving the strength and hardness of the thin coating layer and securing the bonding force by chromium in the amorphous mixture between the hard coating layer and a blade substrate on which an edge of the razor blade is formed.
    Type: Application
    Filed: May 21, 2020
    Publication date: November 26, 2020
    Applicant: DORCO CO., LTD.
    Inventors: Min Joo PARK, Sung Hoon OH, Seong Won JEONG
  • Publication number: 20150326834
    Abstract: A wall display system includes a display unit mounted on the entire surface of a wall or a part of the wall surface, the display unit being configured to reproduce sound or images; a camera and microphone configured to detect motion and sound of a user, respectively; and a controller configured to receive image signals and sound signals output from the camera and microphone, respectively, and to transmit the image signals to the display unit.
    Type: Application
    Filed: August 22, 2014
    Publication date: November 12, 2015
    Inventor: Min-Joo Park
  • Patent number: 8502192
    Abstract: A lateral light emitting diode comprises a layer stack disposed on one side of a substrate, the layer stack including a p-type layer, n-type layer, and a p/n junction formed therebetween. The LED may further include a p-electrode disposed on a first side of the substrate and being in contact with the p-type layer on an exposed surface and an n-electrode disposed on the first side of the substrate and being in contact with an exposed surface of an n+ sub-layer of the n-type layer.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: August 6, 2013
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Joon Seop Kwak, Min Joo Park, Fareen Adeni Khaja, Chi-Chun Chen
  • Publication number: 20110168972
    Abstract: A lateral light emitting diode comprises a layer stack disposed on one side of a substrate, the layer stack including a p-type layer, n-type layer, and a p/n junction formed therebetween. The LED may further include a p-electrode disposed on a first side of the substrate and being in contact with the p-type layer on an exposed surface and an n-electrode disposed on the first side of the substrate and being in contact with an exposed surface of an n+ sub-layer of the n-type layer.
    Type: Application
    Filed: January 10, 2011
    Publication date: July 14, 2011
    Applicant: VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC.
    Inventors: Joon Seop Kwak, Min Joo Park, Fareen Adeni Khaja, Chi-Chun Chen