Patents by Inventor Sang Bin Chang

Sang Bin Chang 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).

  • Height adjustment pillow having handle mounted to lower part thereof
    Patent number: 11389017
    Abstract: The present invention provides a height adjustment pillow including a lifting device adjusting the height of an upper member with respect to a lower member, the lifting device comprising: a drive shaft passing through the lower member with a lower end part thereof protruding from a lower part of the lower member and having a manipulation handle provided in the lower end part; at least one or more rotation members mounted on the lower member to be rotatable relative to upward and downward directional shafts thereof; a power train transmitting a rotational force of the drive shaft to the rotation members; and lifting operation equipment converting a rotational movement of the rotation member into a rectilinear movement of the upward and downward directions so as to lift and lower the upper member.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: July 19, 2022
    Inventor: Sang Bin Chang
  • HEIGHT ADJUSTMENT PILLOW HAVING HANDLE MOUNTED TO LOWER PART THEREOF
    Publication number: 20200069087
    Abstract: The present invention provides a height adjustment pillow including a lifting device adjusting the height of an upper member with respect to a lower member, the lifting device comprising: a drive shaft passing through the lower member with a lower end part thereof protruding from a lower part of the lower member and having a manipulation handle provided in the lower end part; at least one or more rotation members mounted on the lower member to be rotatable relative to upward and downward directional shafts thereof; a power train transmitting a rotational force of the drive shaft to the rotation members; and lifting operation equipment converting a rotational movement of the rotation member into a rectilinear movement of the upward and downward directions so as to lift and lower the upper member.
    Type: Application
    Filed: November 8, 2019
    Publication date: March 5, 2020
    Inventor: Sang Bin Chang
  • Height-adjustable pillow
    Patent number: 9538869
    Abstract: The present invention provides a height-adjustable pillow comprising: a lower member; an upper member which is disposed above the lower member, in such a way as to be able to move vertically relative to the lower member; and a raising and lowering device for adjusting the height of the upper member by moving the upper member.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: January 10, 2017
    Assignee: Motex Products Co., Ltd.
    Inventor: Sang Bin Chang
  • HEIGHT-ADJUSTABLE PILLOW
    Publication number: 20160367052
    Abstract: The present invention provides a height-adjustable pillow comprising: a lower member; an upper member which is disposed above the lower member, in such a way as to be able to move vertically relative to the lower member; and a raising and lowering device for adjusting the height of the upper member by moving the upper member.
    Type: Application
    Filed: September 2, 2016
    Publication date: December 22, 2016
    Inventor: Sang Bin Chang