Patents by Inventor Guk-Hwan AN

Guk-Hwan AN 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: 8835073
    Abstract: Disclosed is a polymer membrane for a battery including a porous support including a fiber including a core including a high melting-point polymer; and a sheath including a low melting-point polymer surrounding the core, and a method of preparing the same. The polymer membrane for a battery may further include a proton conductive polymer.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: September 16, 2014
    Assignees: Samsung SDI Co., Ltd., Korea Institute of Industrial Technology
    Inventors: Sang-Il Han, Hee-Tak Kim, Dae-Young Lim, Jung-Nam Im, Guk-Hwan An, Ki-Young Kim
  • Patent number: 8643859
    Abstract: An image forming apparatus and a control method thereof which performs an auto-recovery function, the image forming apparatus including: a housing including a door; an image forming unit mounted in the housing to form an image on a print medium; a medium discharger which discharges the print medium to an outside of the housing; a finisher mounted on the housing to perform a finishing operation; a discharging direction changer which changes a discharging direction of the print medium to guide the print medium to one of the medium discharger and the finisher; and a controller which controls the image forming unit, the finisher and the discharging direction changer, and selectively performs an auto-recovery operation to automatically recover a jam of the print medium depending upon an occurrence location of the jam of the print medium if the jam occurs from a predetermined location of a print medium feeding path.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: February 4, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-soo Song, Suk-goo Kim, Guk-hwan Lee
  • Publication number: 20120270458
    Abstract: The present invention relates to a medical nonwoven fabric comprising gelable cellulose derivative short-cut fibers as prepared by the paper making process, a preparation method thereof, and an adhesion prevention barrier using the same. The present invention provides a single phase of medical nonwoven fabric comprising gelable cellulose derivative short-cut fibers, to induce capillary action of micropores formed between the fibers and thereby control the gelation time, and provides a composite nonwoven fabric formed by laminating a nonwoven fabric layer comprising a different kind of biodegradable polymer material not susceptible to gelation on the single-phase of medical nonwoven fabric comprising gelable cellulose derivative short-cut fibers, thereby improving dimensional stability and convenience of surgical procedure. The present invention further provides a dyed medical nonwoven fabric to improve visibility, allowing easiness of recognizing the placement or location of the medical nonwoven fabric.
    Type: Application
    Filed: April 1, 2010
    Publication date: October 25, 2012
    Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
    Inventors: Jung Nam Im, Dae Young Lim, Guk-Hwan An, Yoon Jin Kim
  • Publication number: 20120081727
    Abstract: An image forming apparatus and a control method thereof which performs an auto-recovery function, the image forming apparatus including: a housing including a door; an image forming unit mounted in the housing to form an image on a print medium; a medium discharger which discharges the print medium to an outside of the housing; a finisher mounted on the housing to perform a finishing operation; a discharging direction changer which changes a discharging direction of the print medium to guide the print medium to one of the medium discharger and the finisher; and a controller which controls the image forming unit, the finisher and the discharging direction changer, and selectively performs an auto-recovery operation to automatically recover a jam of the print medium depending upon an occurrence location of the jam of the print medium if the jam occurs from a predetermined location of a print medium feeding path.
    Type: Application
    Filed: April 7, 2011
    Publication date: April 5, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun-soo Song, Suk-goo Kim, Guk-hwan Lee
  • Publication number: 20110081594
    Abstract: Disclosed is a polymer membrane for a battery including a porous support including a fiber including a core including a high melting-point polymer; and a sheath including a low melting-point polymer surrounding the core, and a method of preparing the same. The polymer membrane for a battery may further include a proton conductive polymer.
    Type: Application
    Filed: October 7, 2010
    Publication date: April 7, 2011
    Applicant: SAMSUNG SDI CO., LTD.,
    Inventors: Sang-Il HAN, Hee-Tak KIM, Dae-Young LIM, Jung-Nam IM, Guk-Hwan AN, Ki-Young KIM