Patents by Inventor Woonki DAE

Woonki DAE 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).

  • Haptic actuator and electronic device including same
    Patent number: 12233436
    Abstract: An actuator according to various embodiments of the present invention comprises: a stator including a bracket, a yoke located on the bracket, and a coil for encompassing the circumference of the yoke; a permanent magnet encompassing the circumference of the coil; a vibrator including a weight encompassing the circumference of the permanent magnet, and a plate for supporting the permanent magnet and the weight; an elastic member located between the bracket and the vibrator so as to support the vibrator; and a magnetic fluid which is located between the vibrator and the stator, and which provides damping stability when the vibrator vibrates, wherein the weight of the magnetic fluid can be between 0.24% to 0.71% on the basis of the weight of the vibrator. Other various embodiments are possible.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: February 25, 2025
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeongseok Lee, Kwonho Song, Junho Noh, Soonkoo Shim, Minku Lee, Youngbin Chong, Namjin Choi, Taesik Kim, Woonki Dae, Yudong Bae
  • HAPTIC ACTUATOR AND ELECTRONIC DEVICE INCLUDING SAME
    Publication number: 20220152652
    Abstract: An actuator according to various embodiments of the present invention comprises: a stator including a bracket, a yoke located on the bracket, and a coil for encompassing the circumference of the yoke; a permanent magnet encompassing the circumference of the coil; a vibrator including a weight encompassing the circumference of the permanent magnet, and a plate for supporting the permanent magnet and the weight; an elastic member located between the bracket and the vibrator so as to support the vibrator; and a magnetic fluid which is located between the vibrator and the stator, and which provides damping stability when the vibrator vibrates, wherein the weight of the magnetic fluid can be between 0.24% to 0.71% on the basis of the weight of the vibrator. Other various embodiments are possible.
    Type: Application
    Filed: January 31, 2022
    Publication date: May 19, 2022
    Inventors: Jeongseok LEE, Kwonho SONG, Junho NOH, Soonkoo SHIM, Minku LEE, Youngbin CHONG, Namjin CHOI, Taesik KIM, Woonki DAE, Yudong BAE