Patents by Inventor Seung-Hyun Han

Seung-Hyun Han 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: 20150180272
    Abstract: A method for changing a capacitance value of an output capacitor of a power factor corrector (PFC) includes applying AC power to a power conversion circuit. It is sensed whether an instantaneous power failure occurs in the AC power. Output capacitors of the PFC of the power conversion circuit are connected in parallel to each other to increase capacitance values of the output capacitors, when it is sensed that the instantaneous power failure does not occur in the AC power.
    Type: Application
    Filed: December 2, 2014
    Publication date: June 25, 2015
    Inventors: Ho Tae CHUN, Chang Han JUN, Jeong Yun LEE, Seung Hyun HAN, Jin Young YANG, Woo Young LEE
  • Publication number: 20150141352
    Abstract: The present invention relates to a bone regeneration or bone formation promoting pharmaceutical composition comprising muramyl dipeptide, an analogue thereof, a derivative thereof or a pharmaceutically acceptable salt thereof. In contrast to existing passive therapeutic agents which center on bone absorption suppression based on mechanisms for reducing osteoclast functionality, the composition comprising muramyl dipeptide of the present invention promotes the differentiation of osteoblasts, which are bone forming cells, and can advantageously be used in various diseases where bone formation is required as an active therapeutic agent that does not affect osteoclast.
    Type: Application
    Filed: November 1, 2012
    Publication date: May 21, 2015
    Applicant: SNU R&DB FOUNDATION
    Inventors: Seung Hyun Han, Ok-Jin Park, Cheol-Heul Yun
  • Publication number: 20140369077
    Abstract: A power factor correction (PFC) circuit for a charging converter, includes an input terminal connected with an alternating-current source, and an output terminal connected with a converter. The output terminal is connected to an electrolytic capacitor, such that the PFC circuit is connected in parallel with the converter through the electrolytic capacitor. The front end of the electrolytic capacitor is connected to an LC filter.
    Type: Application
    Filed: October 4, 2013
    Publication date: December 18, 2014
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Ho Tae CHUN, Seung Hyun HAN, Jeong Yun LEE, Chang Han JUN, Jong Pil KIM
  • Patent number: 8621266
    Abstract: A memory system comprises a flash memory and a memory controller. The flash memory comprises a plurality of memory blocks. The memory controller performs a read retry operation on a memory block containing an uncorrectable read error until an accurate data value is read from the memory block. The memory controller then controls the flash memory to perform an erase refresh operation on the memory block.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: December 31, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang chul Kang, Seung hyun Han
  • Publication number: 20110066899
    Abstract: A memory system comprises a flash memory and a memory controller. The flash memory comprises a plurality of memory blocks. The memory controller performs a read retry operation on a memory block containing an uncorrectable read error until an accurate data value is read from the memory block. The memory controller then controls the flash memory to perform an erase refresh operation on the memory block.
    Type: Application
    Filed: July 23, 2010
    Publication date: March 17, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang chul KANG, Seung hyun HAN
  • Publication number: 20060212878
    Abstract: A method for reconfiguring an application in a pervasive computing environment, includes receiving a request for a reconfiguration of a predetermined application reconfiguration according to a change in a context, searching a service in response to the change in the context with respect to each of at least one service component configuring the predetermined application, and reconfiguring the predetermined application based on the searched service.
    Type: Application
    Filed: February 8, 2006
    Publication date: September 21, 2006
    Inventors: Kyung-ho Park, Woo-shik Kang, Seung-hyun Han, Kyung-min Lee, Dong-man Lee
  • Patent number: D383444
    Type: Grant
    Filed: December 21, 1995
    Date of Patent: September 9, 1997
    Assignee: Daewoo Telecom Ltd.
    Inventor: Seung-Hyun Han
  • Patent number: D386752
    Type: Grant
    Filed: August 9, 1996
    Date of Patent: November 25, 1997
    Assignee: Daewoo Telecom Ltd.
    Inventor: Seung-Hyun Han
  • Patent number: D396703
    Type: Grant
    Filed: August 21, 1997
    Date of Patent: August 4, 1998
    Assignee: Daewoo Telecom Ltd.
    Inventor: Seung-Hyun Han
  • Patent number: D402572
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: December 15, 1998
    Assignee: Daewoo Telecom Ltd.
    Inventor: Seung-Hyun Han
  • Patent number: D408020
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: April 13, 1999
    Assignee: Daewoo Telecom Ltd.
    Inventor: Seung-Hyun Han