Patents Assigned to Kyungwon Ferrite Ind. Co., Ltd.
  • Actuator for holographic information storing apparatus
    Patent number: 7916371
    Abstract: An actuator to drive a mirror of a holographic information storing apparatus, the actuator including: piezoelectric cells; support members mounted on the piezoelectric cells; a hinge member mounted on the support member; and a post mounted on the hinge member, to support the mirror. The hinge member includes a bar disposed parallel to a rotation axis of the mirror, and a curved portion that extends from the bar.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: March 29, 2011
    Assignees: Samsung Electronics Co., Ltd., Kyungwon Ferrite Ind. Co., Ltd.
    Inventors: Young-min Cheong, Kyoung-woo Lee, Jae-hwan Kwon, Hyoung-jong So, Hong-hee Kim
  • ACTUATOR USING PIEZOELECTRIC ELEMENT AND METHOD OF DRIVING THE SAME
    Publication number: 20100060966
    Abstract: An actuator using a piezoelectric element and a method of driving the same. The actuator includes at least one piezoelectric cell moving by displacement according to an input voltage, at least one piezoelectric sensor sensing the displacement of the at least one piezoelectric cell, an error detector detecting an error in the at least one piezoelectric sensor, and a feedback signal generator generating a feedback signal corresponding to the error, thereby performing micromirror driving and sensing.
    Type: Application
    Filed: September 10, 2009
    Publication date: March 11, 2010
    Applicants: Samsung Electronics Co., Ltd., Kyungwon Ferrite Ind. Co., Ltd
    Inventors: Young-min Cheong, Kyoung-woo Lee, Jae-hwan Kwon, Hyoung-Jong So, Hong-hee Kim
  • ACTUATOR FOR HOLOGRAPHIC INFORMATION STORING APPARATUS
    Publication number: 20090323150
    Abstract: An actuator to drive a mirror of a holographic information storing apparatus, the actuator including: piezoelectric cells; support members mounted on the piezoelectric cells; a hinge member mounted on the support member; and a post mounted on the hinge member, to support the mirror. The hinge member includes a bar disposed parallel to a rotation axis of the mirror, and a curved portion that extends from the bar.
    Type: Application
    Filed: February 24, 2009
    Publication date: December 31, 2009
    Applicants: Samsung Electronics Co., Ltd., Kyungwon Ferrite Ind. Co., Ltd.
    Inventors: Young-min Cheong, Kyoung-woo Lee, Jae-hwan Kwon, Hyoung-jong So, Hong-hee Kim