Patents by Inventor Sun-Hyung Lee

Sun-Hyung Lee 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: 11971671
    Abstract: A fusing apparatus includes: a pressing roller to be axially rotated; a fusing belt to rotate by receiving a rotational force from the pressing roller; a pressing member to press toward the pressing roller from the inside of the fusing belt to form a nip in which the printing paper is nipped between the fusing belt and the pressing roller; on the fusing belt or the pressing member, a sliding layer to reduce friction between the fusing belt and the pressing member; and an adhesive layer to adhere the sliding layer to the fusing belt or the pressing member.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: April 30, 2024
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Sun Hyung Lee, Sea Chul Bae, Jae Hyeok Jang, Jin Gyu Ko
  • Publication number: 20240136539
    Abstract: In an embodiment a method includes manufacturing a membrane-electrode-gas diffusion layer assembly (MEGA) fabric by bonding a gas diffusion layer (GDL) material to a first surface of a membrane-electrode assembly (MEA) fabric, injecting, by a steam injector, a liquid material to a first surface of the MEGA fabric while allowing the liquid material to be absorbed to the first surface of the MEGA fabric, supplying, by a gas injector, compressed gas to a second surface of the MEGA fabric in which the liquid material has been absorbed, inspecting, by a surface inspection device, a surface state of the MEGA fabric after supplying the compressed gas and, after inspecting, winding the MEGA fabric around a MEGA winding unit.
    Type: Application
    Filed: June 29, 2023
    Publication date: April 25, 2024
    Inventors: Han Hyung Lee, Yong Seok Lee, Sun II Kim, Seung Ah Yu
  • Publication number: 20240069475
    Abstract: A fuser includes a pressure roller to rotate, a heating belt to form a fixing nip with the pressure roller; and bushings at each end of the heating belt, respectively, to support the heating belt. Each of the bushings includes a side wall outside the each end of the heating belt, and a support member in a direction toward the heating belt with respect to the side wall to support an inner surface of the heating belt, where the support member includes a protruding region downwardly inclined in a direction toward the side wall.
    Type: Application
    Filed: March 9, 2021
    Publication date: February 29, 2024
    Inventors: Sun Hyung LEE, Sea Chul BAE, Sung Woo KANG
  • Patent number: 11917755
    Abstract: The carrier-foil-attached ultra-thin copper foil according to one embodiment of the present invention comprises a carrier foil, a release layer, a first ultra-thin copper foil, a Cu—Al bonding strength improvement layer, an Al layer, and a second ultra-thin copper foil, wherein the release layer may comprise a first metal (A3) having peeling properties, and a second metal (B3) and third metal (C3) facilitating the plating of the first metal (A3).
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: February 27, 2024
    Assignee: Lotte Energy Materials Corporation
    Inventors: Won Jin Beom, Sun Hyung Lee, Eun Sil Choi, Ki Deok Song, Hyung Cheol Kim
  • Patent number: 11803151
    Abstract: A fuser includes a pressure roller to rotate and a heating belt to form a fixing nip with the pressure roller. The heating belt comprises at each end of the heating belt a bush to support the heating belt, a fixing flange to rotatably support the bush, and a plurality of springs to elastically connect between the bush and the fixing flange, to rotate the bush about an axis passing through a first surface of the bush and a second surface of the bush opposite to the first surface of the bush.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: October 31, 2023
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Sung Woo Kang, Sun Hyung Lee, Sea Chul Bae
  • Patent number: 11774898
    Abstract: An image forming apparatus including a print engine, a gloss treatment device, a medium conveying device, and a processor. The print engine is to form an image on a print medium. The gloss treatment device is to perform a gloss treatment on the print medium on which an image is formed. The medium conveying device to provide the print medium to the print engine and selectively provide the print medium on which an image is formed to the gloss treatment device. The processor is to control the print engine to form an image based on print data and control the medium conveying device to selectively provide the print medium to the gloss treatment device depending on whether a gloss treatment option is set in the print data.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: October 3, 2023
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Sun Hyung Lee, Seung Jun Lee, Choong Kyu Park
  • Publication number: 20230189439
    Abstract: The carrier-foil-attached ultra-thin copper foil according to one embodiment of the present invention comprises a carrier foil, a release layer, a first ultra-thin copper foil, a Cu—Al bonding strength improvement layer, an Al layer, and a second ultra-thin copper foil, wherein the release layer may comprise a first metal (A3) having peeling properties, and a second metal (B3) and third metal (C3) facilitating the plating of the first metal (A3).
    Type: Application
    Filed: January 15, 2018
    Publication date: June 15, 2023
    Inventors: Won Jin Beom, Sun Hyung Lee, Eun Sil Choi, Ki Deok Song, Hyung Cheol Kim
  • Publication number: 20230176518
    Abstract: A fuser includes a pressure roller to rotate and a heating belt to form a fixing nip with the pressure roller. The heating belt comprises at each end of the heating belt a bush to support the heating belt, a fixing flange to rotatably support the bush, and a plurality of springs to elastically connect between the bush and the fixing flange, to rotate the bush about an axis passing through a first surface of the bush and a second surface of the bush opposite to the first surface of the bush.
    Type: Application
    Filed: March 10, 2021
    Publication date: June 8, 2023
    Inventors: Sung Woo KANG, Sun Hyung LEE, Sea Chul BAE
  • Publication number: 20230048699
    Abstract: A fusing apparatus includes: a pressing roller to be axially rotated; a fusing belt to rotate by receiving a rotational force from the pressing roller; a pressing member to press toward the pressing roller from the inside of the fusing belt to form a nip in which the printing paper is nipped between the fusing belt and the pressing roller; on the fusing belt or the pressing member, a sliding layer to reduce friction between the fusing belt and the pressing member; and an adhesive layer to adhere the sliding layer to the fusing belt or the pressing member.
    Type: Application
    Filed: December 28, 2020
    Publication date: February 16, 2023
    Inventors: Sun Hyung LEE, Sea Chul BAE, Jae Hyeok JANG, Jin Gyu KO
  • Publication number: 20220342355
    Abstract: An image forming apparatus including a print engine, a gloss treatment device, a medium conveying device, and a processor. The print engine is to form an image on a print medium. The gloss treatment device is to perform a gloss treatment on the print medium on which an image is formed. The medium conveying device to provide the print medium to the print engine and selectively provide the print medium on which an image is formed to the gloss treatment device. The processor is to control the print engine to form an image based on print data and control the medium conveying device to selectively provide the print medium to the gloss treatment device depending on whether a gloss treatment option is set in the print data.
    Type: Application
    Filed: September 18, 2020
    Publication date: October 27, 2022
    Inventors: Sun Hyung LEE, Seung Jun LEE, Choong Kyu PARK
  • Patent number: 11448995
    Abstract: An example image forming apparatus includes an image forming unit to form a toner image on a print medium by using an electrophotographic method, a fixing unit to fix the toner image to the print medium by heat and pressure, a photo finishing unit to apply heat and pressure to the print medium after fixing and to cool the print medium, and a clear toner application unit located on an upstream side of the photo finishing unit with respect to a transporting direction of the print medium to apply 0.3 mg/cm2 or more of a clear toner to the print medium.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: September 20, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Sun Hyung Lee, Seung Jun Lee, Choong Kyu Park, Giljae You, Juhee Kwon
  • Publication number: 20210349416
    Abstract: An example image forming apparatus includes an image forming unit to form a toner image on a print medium by using an electrophotographic method, a fixing unit to fix the toner image to the print medium by heat and pressure, a photo finishing unit to apply heat and pressure to the print medium after fixing and to cool the print medium, and a clear toner application unit located on an upstream side of the photo finishing unit with respect to a transporting direction of the print medium to apply 0.3 mg/cm2 or more of a clear toner to the print medium.
    Type: Application
    Filed: February 4, 2020
    Publication date: November 11, 2021
    Inventors: Sun Hyung LEE, Seung Jun LEE, Choong Kyu PARK, Giljae YOU, Juhee KWON
  • Patent number: 11166378
    Abstract: The carrier-foil-attached ultra-thin copper foil according to one embodiment of the present invention comprises a carrier foil, a release layer, a first ultra-thin copper foil, a Cu-diffusion prevention layer, an Al layer, and a second ultra-thin copper foil, wherein the release layer may comprise a first metal (A2) having peeling properties, and a second metal (B2) and third metal (C2) facilitating the plating of the first metal (A2).
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: November 2, 2021
    Assignee: ILJIN MATERIALS CO., LTD.
    Inventors: Won Jin Beom, Sun Hyung Lee, Eun Sil Choi, Ki Deok Song, Hyung Cheol Kim
  • Patent number: 11164831
    Abstract: The carrier-foil-attached ultra-thin copper foil according to one embodiment of the present invention comprises a carrier foil, a release layer, a first ultra-thin copper foil, an Al layer, and a second ultra-thin copper foil, wherein the release layer may comprise a first metal (A1) having peeling properties, and a second metal (B1) and third metal (C1) facilitating the plating of the first metal (A1).
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: November 2, 2021
    Assignee: ILJIN MATERIALS CO., LTD.
    Inventors: Won Jin Beom, Sun Hyung Lee, Eun Sil Choi, Ki Deok Song, Hyung Cheol Kim
  • Patent number: 11137701
    Abstract: A fusing apparatus for an image forming apparatus includes a fusing belt having a sidewall that faces the fusing bel, a guide member, disposed on the sidewall and having a lower portion disposed above a lower portion of the bushing, and a ring member, disposed between the guide member and the fusing belt. The ring member can be deflected toward the sidewall in a gap which is provided below the lower portion of the guide member and between the ring member and the sidewall.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: October 5, 2021
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Sun-hyung Lee, Sung-woo Kang, Ji-su Park, Sea-chul Bae, Gil-jae You, Seung-jun Lee, Young-hoon Han
  • Publication number: 20210011398
    Abstract: A fusing apparatus for an image forming apparatus includes a fusing belt having a sidewall that faces the fusing bel, a guide member, disposed on the sidewall and having a lower portion disposed above a lower portion of the bushing, and a ring member, disposed between the guide member and the fusing belt. The ring member can be deflected toward the sidewall in a gap which is provided below the lower portion of the guide member and between the ring member and the sidewall.
    Type: Application
    Filed: September 25, 2020
    Publication date: January 14, 2021
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Sun-hyung LEE, Sung-woo KANG, Ji-su PARK, Sea-chul BAE, Gil-jae YOU, Seung-jun LEE, Young-hoon HAN
  • Patent number: 10831135
    Abstract: A fusing apparatus for an image forming apparatus includes a rotatable fusing belt, a bushing to guide the rotation of the fusing belt, a ring member provided between the bushing and the fusing belt, and a guide member, provided on an upper portion of a sidewall of the bushing that faces the fusing belt to support an upper portion of the ring member. A gap is provided between a lower portion of the guide member and a lower portion of the sidewall to allow deflection of a lower portion of the ring member toward the sidewall.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: November 10, 2020
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Sun-hyung Lee, Sung-woo Kang, Ji-su Park, Sea-chul Bae, Gil-jae You, Seung-jun Lee, Young-hoon Han
  • Patent number: 10551775
    Abstract: A fusing apparatus for an image forming apparatus includes a fusing belt which rotates, a bushing guiding the fusing belt, a ring member rotatably coupled to the bushing and in contact with the fusing belt so as to rotate together with the fusing belt, and a sliding guide member, provided between the ring member and the sidewall of the bushing and at least partially disposed above a central axis of the fusing belt. The sliding guide member slidably supports the ring member and protrudes from the sidewall of the bushing such that a continuous gap is provided from a bottom of the sliding guide member to a bottom of the sidewall of the bushing.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: February 4, 2020
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Sun-hyung Lee, Sung-woo Kang, Ji-su Park, Sea-chul Bae, Gil-jae You, Seung-jun Lee, Young-hoon Han
  • Publication number: 20190371750
    Abstract: The carrier-foil-attached ultra-thin copper foil according to one embodiment of the present invention comprises a carrier foil, a release layer, a first ultra-thin copper foil, an Al layer, and a second ultra-thin copper foil, wherein the release layer may comprise a first metal (A1) having peeling properties, and a second metal (B1) and third metal (C1) facilitating the plating of the first metal (A1).
    Type: Application
    Filed: January 15, 2018
    Publication date: December 5, 2019
    Inventors: Won Jin Beom, Sun Hyung Lee, Eun Sil Choi, Ki Deok Song, Hyung Cheol Kim
  • Publication number: 20190364664
    Abstract: The carrier-foil-attached ultra-thin copper foil according to one embodiment of the present invention comprises a carrier foil, a release layer, a first ultra-thin copper foil, a Cu-diffusion prevention layer, an Al layer, and a second ultra-thin copper foil, wherein the release layer may comprise a first metal (A2) having peeling properties, and a second metal (B2) and third metal (C2) facilitating the plating of the first metal (A2).
    Type: Application
    Filed: January 15, 2018
    Publication date: November 28, 2019
    Inventors: Won Jin Beom, Sun Hyung Lee, Eun Sil Choi, Ki Deok Song, Hyung Cheol Kim