Patents by Inventor Dong J. Kang

Dong J. Kang 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: 5243584
    Abstract: An optical pick-up unit for an optical disk drive comprising a base plate secured to an optical block with an opening to enable a laser beam emitted by a laser emitter of the optical block to pass therethrough is disclosed. A support member is secured to the base plate opposite the opening and with a spring operatively secured thereto. A tracking damper is secured to the support member. A tracking support member is secured to the tracking damper and further includes a center of gravity with an insert hole formed therein. A support element extends through the insert hole and has a recess formed into each end of the support element. A pin is secured to the spring and another pin is secured to the base plate such that the pins are aligned with the insert hole and contact the support element, respectively. An objective lens is positioned over the opening and is secured to the tracking support member.
    Type: Grant
    Filed: March 19, 1992
    Date of Patent: September 7, 1993
    Assignee: Hyundai Electronics Industries Co., Ltd.
    Inventor: Dong J. Kang