Patents by Inventor Jeong-hun Choe

Jeong-hun Choe 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).

  • Disc chucking structure and optical disc drive including the same
    Patent number: 9082445
    Abstract: Provided is a disc clamping structure, a spindle structure, and an optical disc drive having the disc clamping structure. The disc clamping structure includes a chucking spring comprising a pressing portion pressing an upper surface of the clamper, and elastic portions surrounding the pressing portion and providing an elastic force toward the clamper. The disc clamping structure does not require a magnetic thrust as does the conventional optical disc drive.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: July 14, 2015
    Assignee: Toshiba Samsung Storage Technology Korea Corporation
    Inventors: Byung-yeob Park, Seong-yeon Park, Bo-won Hwang, Jeong-hun Choe
  • OPTICAL DISC DRIVE AND MAIN FRAME OF OPTICAL DISC DRIVE
    Publication number: 20140237491
    Abstract: Provided is an optical disc drive that may prevent an optical disc from dropping during an unclamping operation. The optical disc drive includes a main frame to support the optical disc drive and a disc tray in which the optical disc is disposed, and one or more stopper mechanisms to prevent the optical disc disposed on the disc tray from dropping.
    Type: Application
    Filed: February 19, 2014
    Publication date: August 21, 2014
    Applicant: TOSHIBA SAMSUNG STORAGE TECHNOLOGY KOREA CORPORATION
    Inventors: Hyoung Woo JO, Seong Yeon PARK, Young Sun JUNG, Jeong Hun CHOE
  • DISC CHUCKING STRUCTURE AND OPTICAL DISC DRIVE INCLUDING THE SAME
    Publication number: 20130111508
    Abstract: Provided is a disc clamping structure, a spindle structure, and an optical disc drive having the disc clamping structure. The disc clamping structure includes a chucking spring comprising a pressing portion pressing an upper surface of the clamper, and elastic portions surrounding the pressing portion and providing an elastic force toward the clamper. The disc clamping structure does not require a magnetic thrust as does the conventional optical disc drive.
    Type: Application
    Filed: October 18, 2012
    Publication date: May 2, 2013
    Inventors: Byung-yeob Park, Seong-yeon Park, Bo-won Hwang, Jeong-hun Choe