Patents by Inventor Nam Ki Park

Nam Ki Park 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: 20150137645
    Abstract: A spindle motor may include: a sleeve rotatably supporting a shaft; a rotor coupled to the shaft and rotating together therewith; and a base member fixedly coupled to the sleeve, wherein the base member includes a plurality of penetration holes formed therein so as to penetrate therethrough, and a magnetic material is inserted into at least one of the plurality of penetration holes, and non-magnetic materials are inserted into the remaining penetration holes.
    Type: Application
    Filed: November 18, 2014
    Publication date: May 21, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: Nam Ki PARK
  • Publication number: 20140293481
    Abstract: Disclosed herein is a hard disk drive. The hard disk drive according to a preferred embodiment of the present invention includes: at least one disk; a spindle motor rotating the disk; a head stack assembly rotatable to write and read data on and from the disk; a plate-shaped base rotatably supporting the head stack assembly and supporting the spindle motor; and at least one elongated pin disposed on the base. In particular, the base according to the preferred embodiment of the present invention is integrally provided with at least one cylindrical burring part that may receive a part of the pin.
    Type: Application
    Filed: July 9, 2013
    Publication date: October 2, 2014
    Inventor: Nam Ki Park
  • Publication number: 20140185162
    Abstract: There is provided a base assembly including a motor mounting part, and a base body including a disk mounting part coupled to the motor mounting part and having a disk disposed thereon, the disk having data stored therein, and a head seating part formed in a position lower than that of the disk mounting part, wherein the motor mounting part is formed of a non-magnetic material, and the base body is formed of a magnetic material.
    Type: Application
    Filed: March 11, 2013
    Publication date: July 3, 2014
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Nam Ki PARK
  • Publication number: 20140001928
    Abstract: There is provided a spindle motor including: a base member; a holding member having a lower end portion fixedly connected to the base member and a stator core installed on an outer peripheral surface thereof; a sleeve fixedly installed on an inner peripheral surface of the holding member; a shaft rotatably supported by the sleeve; and a rotor hub installed on an upper end portion of the shaft to rotate together therewith.
    Type: Application
    Filed: September 6, 2012
    Publication date: January 2, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: Nam Ki PARK
  • Publication number: 20130113322
    Abstract: Disclosed herein are an electromagnetic module for a spindle motor including a shaft and a spindle motor having the same. The electromagnetic module includes: an armature including a core and a coil wound around the core; and a magnet facing the armature, wherein the magnet is provided with a protrusion part disposed over the core. The spindle motor includes: a rotor part including a shaft, a hub, and a magnet; a stator part including a sleeve rotatably supporting the shaft, a base having the sleeve coupled thereto, and an armature facing the magnet, fixedly coupled to the base, and including a core and a coil; and a fluid dynamic bearing part formed between the rotor part and the stator part by being filled with oil, wherein the magnet is provided with a protrusion part disposed over the core.
    Type: Application
    Filed: February 21, 2012
    Publication date: May 9, 2013
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Nam Ki Park, Sang Jae Song
  • Publication number: 20130076186
    Abstract: Disclosed herein is a spindle motor including: a rotor including a shaft, a hub, and a magnet; a stator including a sleeve rotatably supporting the shaft, a base having the sleeve coupled thereto, and an armature facing the magnet, fixedly coupled to the base, and including a core and a coil; and a fluid dynamic bearing part formed between the rotor and the stator by being filled with oil, wherein the stator further includes a pulling plate disposed to face the magnet in an axial direction of a shaft, coupled to the base, and protruded upwardly toward the core in a axial direction of a shaft.
    Type: Application
    Filed: November 23, 2011
    Publication date: March 28, 2013
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Nam Ki Park, Sang Jin Park