Patents by Inventor Seung-deok An

Seung-deok 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).

  • Publication number: 20210043923
    Abstract: Provide are a method of manufacturing a cathode material including (A) synthesizing a precursor including a metal compound and a carbon compound, (B) carbonizing the precursor in an inert atmosphere to produce a metal-carbon composite, (C) sulfurizing the metal-carbon composite in a sulfur atmosphere to produce a metal-metal sulfide-carbon composite, (D) removing metal particles from the metal-metal sulfide-carbon composite to produce a metal sulfide-carbon composite, and (E) synthesizing sulfur particles in the metal sulfide-carbon composite to produce a metal sulfide-sulfur-carbon composite, and a cathode active material.
    Type: Application
    Filed: June 30, 2020
    Publication date: February 11, 2021
    Applicant: Korea University Research and Business Foundation
    Inventors: Dong-Wan KIM, Seung-Deok SEO
  • Patent number: 6377489
    Abstract: A method can perform the erase operation on a byte or word basis, in such a manner that erase is allowed via the source by applying a negative voltage to the control gate and applying the high voltage to the select gate but the erase is not allowed if the select gate becomes a low voltage.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: April 23, 2002
    Assignee: Hyundai Electronics Industries Co., Ltd.
    Inventors: Seung Deok Kim, Sung Jin Yoo
  • Patent number: 6104893
    Abstract: An image forming device forms an image on a recordable medium with image data supplied from a document. The device provides an otpimum print quality by varying a fixing temperature of a fixing unit after presuming an amount of consumed toner. In another embodiment, the image forming device is capable of supplying an optimum print quality by varying a transferring voltage level of a transfer unit after presuming the amount of consumed toner.
    Type: Grant
    Filed: July 23, 1998
    Date of Patent: August 15, 2000
    Assignee: SamSung Electronics Co., Ltd.
    Inventors: Sang-hyeon Byeon, Nam-ryoung Kim, Seung-deok An, Kyu-cheol Shin