Patents by Inventor Dong-seob Jang

Dong-seob Jang 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: 20020018441
    Abstract: An air-bearing slider for an optical disk drive for recording/reproducing information onto/from an optical disk while floating and moving at a predetermined height from the rotatably installed optical disk due to a dynamic air pressure is disclosed. The air-bearing slider includes a slider main body having an objective lens installation hole formed through the slider main body so that an objective lens can be installed, and an opening formed through the slider main body at one side portion of the objective lens installation hole, so that air flow flowing under the slider main body can flow out through the opening via the objective lens installation hole when the slider is floating as a result of dynamic air pressure.
    Type: Application
    Filed: April 17, 2001
    Publication date: February 14, 2002
    Inventors: Cheol-sung Yeon, Dong-seob Jang, Gyu-chan Jun, Young-min Cheong
  • Publication number: 20020008940
    Abstract: A negative pressure air bearing slider includes a pair of front rails having a predetermined air inlet passage interposed therebetween at the front side of the slider where air enters, a negative pressure rail disposed at the rear of the front rails and forming air outlet passages connected to the air inlet passage, and forming a negative pressure space where negative pressure is generated according to the flow of air at the rear thereof, and a rear rail disposed at the rear of the negative pressure space, where a magnetic head is installed. In the slider, a stepped portion protruding toward the air outlet passages is formed at the negative pressure rail.
    Type: Application
    Filed: April 2, 2001
    Publication date: January 24, 2002
    Inventors: Dong-seob Jang, Gyu-chan Jun
  • Patent number: 6212032
    Abstract: A pseudo contact NPAB head slider configured for supporting a transducer proximate to a rotating disc. The slider includes two side rails extending almost to the trailing edge and a central air bearing island at the trailing edge, which form air bearing surfaces that develop positive lifting forces as the disc rotates beneath the slider. Two negative pressure air cavities are created, one proximate to each of the side rails in a central portion of the slider body, separated from each other by curved cross rails. In addition, two more negative pressure air cavities are created forward of the central negative pressure air cavities. The central and forward negative pressure air cavities on each side of the slider are divided by narrow central air bearing rails segments, which safely maintain the stable trapped drawing or suction forces in the cavities regardless of large skew angle variations while the disc drive is operating.
    Type: Grant
    Filed: February 18, 1998
    Date of Patent: April 3, 2001
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ki-Ook Park, Dong-Seob Jang, In-Seop Jeong, Tae-Seok Park
  • Patent number: 6055129
    Abstract: A flying NPAB head slider configured for supporting a transducer proximate to a rotating disc. The slider includes two side rails extending from the leading edge to the trailing edge of the slider body, which form air bearing surfaces that develop positive lifting forces as the disc rotates beneath the slider. Two negative pressure air cavities are created, one proximate to each of the side rails in a central portion of the slider body, separated from each other by curved cross rails. In addition, two more negative pressure air cavities are created forward of the central negative pressure air cavities. The central and forward negative pressure air cavities on each side of the slider are divided by narrow central air bearing rails segments, which safely maintain the stable trapped drawing or suction forces in the cavities regardless of large skew angle variations while the disc drive is operating.
    Type: Grant
    Filed: February 18, 1998
    Date of Patent: April 25, 2000
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ki-Ook Park, Dong-Seob Jang, In-Seop Jeong, Tae-Seok Park