Patents by Inventor Min-shik Roh

Min-shik Roh 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: 9245574
    Abstract: An optical disk drive including: a housing; a tray installed in the housing; an optical pickup unit mounted in the tray; and a guide shaft mounted in the tray such that the optical pickup unit and the guide shaft are configured such that the optical pickup unit is reciprocally movable along the guide shaft.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: January 26, 2016
    Assignee: TOSHIBA SAMSUNG STORAGE TECHNOLOGY KOREA CORPORATION
    Inventors: Hyun-woo Lee, Hag-Ryeol Kim, Min-shik Roh, Young-woo Back
  • Patent number: 9123388
    Abstract: A disk drive that includes a noise reduction unit, and a method of reducing noise by using the disk drive. The disk drive includes a main chassis; a tray operatively coupled to the main chassis such that the tray is slidable relative to the main chassis, the tray including a disk accommodation portion configured to accommodate a storage medium such that the storage medium is rotatable relative to the disk accommodation portion; and a noise reduction unit configured to reduce a pressure concentration on an end portion of the storage medium as the storage medium rotates to reduce noise.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: September 1, 2015
    Assignee: Toshiba Samsung Storage Technology Korea Corporation
    Inventors: Min-shik Roh, Se-yoon Kim, Bo-won Hwang, Byung-yeob Park, Dong-ha Jung, Ji-won Jung, Min-seok Ha
  • Patent number: 8726301
    Abstract: A cover for an optical disc drive. The cover includes: a body having a top portion that is configured to cover a disc if the disc is inserted into the optical disc drive, and a pressure structure formed on the body and having an asymmetrical shape.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: May 13, 2014
    Assignee: Toshiba Samsung Storage Technology Korea Corporation
    Inventors: Dong-ha Jung, Bo-won Hwang, Min-shik Roh, Byung-yeob Park, Se-yoon Kim, Ji-won Jung, Min-seok Ha
  • Patent number: 8640152
    Abstract: An optical device is provided including a tray body linearly moving and loading an optical disk. A case guide is configured to guide the linear movement of the tray body. A damper is interposed between the tray body and the case guide to attenuate vibration of the tray body.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: January 28, 2014
    Assignee: Toshiba Samsung Storage Technology Korea Corporation
    Inventors: Min Shik Roh, Hyun woo Lee, Min Song
  • Patent number: 8621497
    Abstract: An optical disc drive including a housing, a tray that is installed in the housing and that is configured to receive an optical disc, which has a spoke region on a surface thereof, an optical pickup unit which is attached to the tray, a main circuit board which is installed on the tray and is operatively connected to the optical pickup unit, and a spoke sensor which is arranged on the main circuit board and corresponds to the spoke region of the optical disk.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: December 31, 2013
    Assignee: Toshiba Samsung Storage Technology Korea Corporation
    Inventors: Hag-Ryeol Kim, Sung-hun Lee, Min-shik Roh, Hyun-woo Lee
  • Publication number: 20120297402
    Abstract: A cover for an optical disc drive. The cover includes: a body having a top portion that is configured to cover a disc if the disc is inserted into the optical disc drive, and a pressure structure formed on the body and having an asymmetrical shape.
    Type: Application
    Filed: February 24, 2012
    Publication date: November 22, 2012
    Inventors: Dong-ha Jung, Bo-won Hwang, Min-shik Roh, Byung-yeob Park, Se-yoon Kim, Ji-won Jung, Min-seok Ha
  • Patent number: 8250592
    Abstract: Provided is an optical disk apparatus in which an interlocking slider engaged with a main slider directly drive an eject lever and a boss for performing a disk chucking operation. The optical disk apparatus includes a housing having a slot to receive a disk, a main unit having a turn table to rotate the disk, the main slider configured to move in first and second directions corresponding to insertion and ejection of the disk, the eject lever configured to eject the disk inserted into the housing through the slot, and the interlocking slider.
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: August 21, 2012
    Assignee: Toshiba Samsung Storage Technology Korea Corporation
    Inventors: Cheol-woong Ahn, Un-jin Choi, Min-shik Roh, Jeong-hun Yeom, Sung-hun Lee
  • Publication number: 20120174132
    Abstract: An optical disk drive including: a housing; a tray installed in the housing; an optical pickup unit mounted in the tray; and a guide shaft mounted in the tray such that the optical pickup unit and the guide shaft are configured such that the optical pickup unit is reciprocally movable along the guide shaft.
    Type: Application
    Filed: December 19, 2011
    Publication date: July 5, 2012
    Inventors: Hyun-woo Lee, Hag-Ryeol Kim, Min-shik Roh, Young-woo Back
  • Publication number: 20120174135
    Abstract: An optical device is provided including a tray body linearly moving and loading an optical disk. A case guide is configured to guide the linear movement of the tray body. A damper is interposed between the tray body and the case guide to attenuate vibration of the tray body.
    Type: Application
    Filed: December 29, 2011
    Publication date: July 5, 2012
    Inventors: Min Shik ROH, Hyun Woo LEE, Min SONG
  • Publication number: 20120174129
    Abstract: An optical disc drive including a housing, a tray that is installed in the housing and that is configured to receive an optical disc, which has a spoke region on a surface thereof, an optical pickup unit which is attached to the tray, a main circuit board which is installed on the tray and is operatively connected to the optical pickup unit, and a spoke sensor which is arranged on the main circuit board and corresponds to the spoke region of the optical disk.
    Type: Application
    Filed: December 28, 2011
    Publication date: July 5, 2012
    Inventors: Hag-Ryeol Kim, Sung-hun Lee, Min-shik Roh, Hyun-woo Lee
  • Publication number: 20120102508
    Abstract: A disk drive that includes a noise reduction unit, and a method of reducing noise by using the disk drive. The disk drive includes a main chassis; a tray operatively coupled to the main chassis such that the tray is slidable relative to the main chassis, the tray including a disk accommodation portion configured to accommodate a storage medium such that the storage medium is rotatable relative to the disk accommodation portion; and a noise reduction unit configured to reduce a pressure concentration on an end portion of the storage medium as the storage medium rotates to reduce noise.
    Type: Application
    Filed: October 20, 2011
    Publication date: April 26, 2012
    Inventors: Min-shik Roh, Se-yoon Kim, Bo-won Hwang, Byung-yeob Park, Dong-ha Jung, Ji-won Jung, Min-seok Ha
  • Publication number: 20090271810
    Abstract: Provided is an optical disk apparatus in which an interlocking slider engaged with a main slider directly drive an eject lever and a boss for performing a disk chucking operation. The optical disk apparatus includes a housing having a slot to receive a disk, a main unit having a turn table to rotate the disk, the main slider configured to move in first and second directions corresponding to insertion and ejection of the disk, the eject lever configured to eject the disk inserted into the housing through the slot, and the interlocking slider.
    Type: Application
    Filed: April 20, 2009
    Publication date: October 29, 2009
    Inventors: Cheol-woong Ahn, Un-jin Choi, Min-shik Roh, Jeong-hun Yeom, Sung-hun Lee