Patents by Inventor Chan-ik LEE

Chan-ik LEE 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).

  • Beam controlling method and optical pickup device for performing the method
    Patent number: 8984543
    Abstract: Provided is an optical pickup device that compensates for an aberration caused by a beam splitter. When a beam of light is reflected from a disc and proceeds towards a beam splitter, the beam splitter is designed to allow the reflected beam to pass therethrough. However, the beam splitter can cause an astigmatism in the reflected beam due to diffraction. According to various aspects herein, an optical pickup device may include a compensation device that generates an inverse astigmatism to compensate for the astigmatism generated by the beam splitter.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: March 17, 2015
    Assignee: Toshiba Samsung Storage Technology Korea Corporation
    Inventors: Ju-hee Im, Ki-bok Kim, Ji-sun Ahn, Chan-ik Lee, Jin-ho Jeong
  • Wire holder and wiring layers included in an objective lens driving unit
    Patent number: 8984546
    Abstract: Provided is an objective lens driving unit that prevents an electrical short circuit between very closely spaced second terminals in the objective lens driving unit. The objective lens driving unit is capable of being used in a slim-type optical disc drive.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: March 17, 2015
    Assignee: Toshiba Samsung Storage Technology Korea Corporation
    Inventors: Jae-kuon Yun, Chan-ik Lee, Won-seok Choi
  • Objective lens driving unit that maintains electrical connection between suspension wires and leads
    Patent number: 8879374
    Abstract: Provided are an objective lens driving unit that maintains the electrical connection between suspension wires and winding bosses. The objective lens driving unit includes a plurality of winding bosses disposed at a side of the frame, each having a projection formed at its end and extending in a direction in which a suspension wire extends.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: November 4, 2014
    Assignee: Toshiba Samsung Storage Technology Korea Corporation
    Inventors: Jae-kuon Yun, Chan-ik Lee, Won-seok Choi
  • BEAM CONTROLLING METHOD AND OPTICAL PICKUP DEVICE FOR PERFORMING THE METHOD
    Publication number: 20140245331
    Abstract: Provided is an optical pickup device that compensates for an aberration caused by a beam splitter. When a beam of light is reflected from a disc and proceeds towards a beam splitter, the beam splitter is designed to allow the reflected beam to pass therethrough. However, the beam splitter can cause an astigmatism in the reflected beam due to diffraction. According to various aspects herein, an optical pickup device may include a compensation device that generates an inverse astigmatism to compensate for the astigmatism generated by the beam splitter.
    Type: Application
    Filed: February 25, 2014
    Publication date: August 28, 2014
    Applicant: Toshiba Samsung Storage Technology Korea Corporation
    Inventors: Ju-hee IM, Ki-bok KIM, Ji-sun AHN, Chan-ik LEE, Jin-ho JEONG
  • WIRE HOLDER AND WIRING LAYERS INCLUDED IN AN OBJECTIVE LENS DRIVING UNIT
    Publication number: 20130339987
    Abstract: Provided is an objective lens driving unit that prevents an electrical short circuit between very closely spaced second terminals in the objective lens driving unit. The objective lens driving unit is capable of being used in a slim-type optical disc drive.
    Type: Application
    Filed: June 13, 2013
    Publication date: December 19, 2013
    Inventors: Jae-kuon Yun, Chan-ik LEE, Won-seok CHOI
  • OBJECTIVE LENS DRIVING UNIT THAT MAINTAINS ELECTRICAL CONNECTION BETWEEN SUSPENSION WIRES AND LEADS
    Publication number: 20130336101
    Abstract: Provided are an objective lens driving unit that maintains the electrical connection between suspension wires and winding bosses. The objective lens driving unit includes a plurality of winding bosses disposed at a side of the frame, each having a projection formed at its end and extending in a direction in which a suspension wire extends.
    Type: Application
    Filed: June 13, 2013
    Publication date: December 19, 2013
    Inventors: Jae-kuon YUN, Chan-ik LEE, Won-seok CHOI