Patents by Inventor Eo-Jin Hong

Eo-Jin Hong 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: 8861143
    Abstract: Disclosed is an assembly located in a memory device. The assembly includes: a suspension including a flexure to which a slider is coupled and a load beam disposed at an upper part of the flexure. The assembly also includes at least one piezoelectric film coupled to the suspension and configured to control at least one of an angle between the load beam and the flexure in a pitching direction and an angle between the load beam and the flexure in a rolling direction by being extended or contracted when electrical current is applied thereto.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: October 14, 2014
    Assignee: Seagate Technology LLC
    Inventors: Eo Jin Hong, Young Bae Chang, Woo Sung Kim
  • Patent number: 8400737
    Abstract: A support structure with enhance vibrational response. In accordance with some embodiments, an apparatus includes a data storage medium and a magnetic head to write to or read from the medium. The head has a first side and a second side opposite the first side, the first side being closer to a center of the medium than the second side. An actuator is adapted to tilt the first side of the head closer to a surface of the medium than the second side of the head.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: March 19, 2013
    Assignee: Seagate Technology LLC
    Inventors: Eo-Jin Hong, Woo-sung Kim, Yong-han Song
  • Publication number: 20120268841
    Abstract: Disclosed is an assembly located in a memory device. The assembly includes: a suspension including a flexure to which a slider is coupled and a load beam disposed at an upper part of the flexure The assembly also includes at least one piezoelectric film coupled to the suspension and configured to control at least one of an angle between the load beam and the flexure in a pitching direction and an angle between the load beam and the flexure in a rolling direction by being extended or contracted when electrical current is applied thereto.
    Type: Application
    Filed: March 30, 2012
    Publication date: October 25, 2012
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Eo Jin HONG, Young Bae CHANG, Woo Sung KIM
  • Publication number: 20100271734
    Abstract: Provided are an HSA with reduced off-track and an HDD including the HSA. The HSA includes a swing arm rotatably mounted on a base member of an HDD; a connecting plate coupled to a front edge of the swing arm; a suspension coupled to the connecting plate to vibrate finely; a pair of hinges disposed on both sides of a center line of the suspension to connect the connecting plate to the suspension; and a head slider that is a recording or reproducing medium of data mounted on the front edge of the suspension. When a hinge between the pair of hinges, which is closer to a center of the disk of the HDD than the other is, is referred to as a first hinge and the other hinge is referred to as a second hinge, the first hinge has a thickness greater than a thickness of the second hinge.
    Type: Application
    Filed: April 27, 2010
    Publication date: October 28, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Eo-Jin HONG, Woo-sung Kim, Yong-han Song
  • Publication number: 20100271729
    Abstract: Provided are a head stack assembly (HSA) with reduced off-track, a hard disk drive including the HSA, and a method of reducing the off-track of the hard disk drive. The HSA includes a swing arm rotatably mounted on a base member of a hard disk drive (HDD); a connecting plate coupled to a front edge of the swing arm; a suspension coupled to the connecting plate to vibrate finely; a pair of hinges disposed on both sides of a center line of the suspension to connect the connecting plate to the suspension; a piezoelectric material layer including a piezoelectric material which is disposed on only one hinge of the pair of hinges, wherein the hinge is closer to a center of a disk in the HDD than the other is; and a head slider that is a recording or reproducing medium of data mounted on the front edge of the suspension.
    Type: Application
    Filed: April 27, 2010
    Publication date: October 28, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Eo-jin HONG, Woo-Sung KIM, Yong-han SONG
  • Publication number: 20080024927
    Abstract: A head gimbal assembly includes a load beam to support a slider where a read/write head is mounted, a base plate arranged close to the load beam, and a step connection portion to connect the load beam and the base plate to be stepped from each other at a side of each of the load beam and the base plate.
    Type: Application
    Filed: July 19, 2007
    Publication date: January 31, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Eo-Jin HONG, Haeng-Soo LEE, Woo-Sung KIM
  • Publication number: 20080002302
    Abstract: This invention stems from knowing that a head gimbal assembly has twice as much of its mass centered on its base plate as it has on its slider performs better in terms of resilience to mechanical shock than one with twice as much mass on the slider as on its base plate. The inventors realized that while these two configurations in normal operation are almost identical, during the impulse and after shocks, the slider with the smaller ratio of mass to the base plate performs better. The invention includes manufacturing methods for the head gimbal assembly, the head stack assembly, and the hard disk drive, as well as these items as products of their respective manufacturing processes.
    Type: Application
    Filed: May 15, 2006
    Publication date: January 3, 2008
    Inventors: Hae-sung Kwon, Eo-Jin Hong, Yun-Sik Han, Vinod Sharma, Hyung Lee