Patents by Inventor Baekdong CHA

Baekdong CHA 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).

  • Character and shape presentation device
    Patent number: 11295631
    Abstract: Disclosed is a character and shape presentation device, more specifically, an electro-vibrating device including a zoned electro-vibrating panel. The electro-vibrating device includes a motor for generating rotational power; a rotation unit rotated by the rotational power generated by the motor and provided in shape of a cylinder; and an electro-vibrating panel anodized on a face of the rotation unit to provide different tactile sensation patterns to a user.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: April 5, 2022
    Assignee: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jeha Ryu, Youngho Kim, Baekdong Cha, Yoonjeong Choi, Kyoungjae Jin
  • CHARACTER AND SHAPE PRESENTATION DEVICE
    Publication number: 20200349861
    Abstract: Disclosed is a character and shape presentation device, more specifically, an electro-vibrating device including a zoned electro-vibrating panel. The electro-vibrating device includes a motor for generating rotational power; a rotation unit rotated by the rotational power generated by the motor and provided in shape of a cylinder; and an electro-vibrating panel anodized on a face of the rotation unit to provide different tactile sensation patterns to a user.
    Type: Application
    Filed: April 30, 2019
    Publication date: November 5, 2020
    Inventors: Jeha RYU, Youngho KIM, Baekdong CHA, Yoonjeong CHOI, Kyoungjae JIN