Patents by Inventor Ji-Su Park

Ji-Su 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: 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
  • Publication number: 20200117123
    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: Application
    Filed: December 10, 2019
    Publication date: April 16, 2020
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Suh-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: 20190025737
    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: Application
    Filed: September 21, 2018
    Publication date: January 24, 2019
    Applicant: S-PRINTING SOLUTION CO., LTD.
    Inventors: Sun-hyung LEE, Sung-woo Kang, Ji-su Park, Sea-chul Bae, Gil-jae You, Seung-jun Lee, Young-hoon Han
  • Patent number: 10120310
    Abstract: A fusing apparatus and an image forming apparatus includes: a fusing belt; a pressing roller pressed to the fusing belt to form a nib part and rotating the fusing belt; a bushing guiding an edge of the fusing belt; and a ring member rotatably coupled to the bushing and in contact with the edge of the fusing belt that rotates to rotate together with the fusing belt, wherein a first frictional force generated between the edge of the fusing belt and the ring member is larger than a second frictional force generated between the bushing and the ring member.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: November 6, 2018
    Assignee: S-PRINTING SOLUTION CO., LTD.
    Inventors: Sun-hyung Lee, Sung-woo Kang, Ji-su Park, Sea-chul Bae, Gil-jae You, Seung-jun Lee, Young-hoon Han
  • Publication number: 20180284668
    Abstract: A fusing apparatus and an image forming apparatus includes: a fusing belt; a pressing roller pressed to the fusing belt to form a nib part and rotating the fusing belt; a bushing guiding an edge of the fusing belt; and a ring member rotatably coupled to the bushing and in contact with the edge of the fusing belt that rotates to rotate together with the fusing belt, wherein a first frictional force generated between the edge of the fusing belt and the ring member is larger than a second frictional force generated between the bushing and the ring member.
    Type: Application
    Filed: July 11, 2017
    Publication date: October 4, 2018
    Applicant: S-Printing Solution Co., Ltd.
    Inventors: Sun-hyung LEE, Sung-woo KANG, Ji-su PARK, Sea-chul BAE, Gil-jae YOU, Seung-jun LEE, Young-hoon HAN
  • Publication number: 20130250738
    Abstract: A clock includes a display including a plurality of planar portions and a plurality of bending portions disposed between the plane portions. The display is configured to display at least one of time, day, or day of the week. The clock also includes a bottom support for supporting one end of the display.
    Type: Application
    Filed: August 31, 2012
    Publication date: September 26, 2013
    Inventors: Sang-Min Kim, Jee-Yeon Lee, Ji-Su Park
  • Patent number: D674293
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: January 15, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jee-Yeon Lee, Ji-Su Park