Patents by Inventor Vasiljef Piotr

Vasiljef Piotr 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).

  • SMALL PIEZOELECTRIC OR ELECTROSTRICTIVE LINEAR MOTOR
    Publication number: 20090127974
    Abstract: A piezoelectric/electrostrictive linear motor is provided. A movable shaft is coupled to a unimorph or bimorph, which is made by attaching a piezoelectric or electrostrictive substrate to an elastic body, so that a movable body provided with respect to the movable shaft is linearly moved along the movable shaft by the vibration or movement of the piezoelectric or electrostrictive substrate.
    Type: Application
    Filed: January 22, 2009
    Publication date: May 21, 2009
    Inventors: Vasiljef Piotr, Bo Keun Kim, Seok Min Yoon, Seong Yil Yoon
  • Small piezoelectric or electrostrictive linear motor
    Patent number: 7498719
    Abstract: The present invention provides a small piezoelectric/electrostrictive ultrasonic linear motors which are installed in cell phones or PDAs, etc. to drive their camera lenses. In the present invention, a movable shaft (30) is coupled to a unimorph or bimorph, which is made by attaching a piezoelectric or electrostrictive substrate to an elastic body (20) (metal), so that a movable body (40) fitted over the movable shaft (30) is linearly moved along the movable shaft (30) by vibration of the piezoelectric or electrostrictive substrate, thus simplifying a manufacturing process, being easily practicable according to a basic principle, and having superior characteristics.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: March 3, 2009
    Assignee: Piezoelectric Technology Co., Ltd.
    Inventors: Vasiljef Piotr, Bo Keun Kim, Seok Min Yoon, Seong Yil Yoon
  • Small piezoelectric or electrostrictive linear motor
    Publication number: 20070120442
    Abstract: The present invention provides a small piezoelectric/electrostrictive ultrasonic linear motors which are installed in cell phones or PDAs, etc. to drive their camera lenses. In the present invention, a movable shaft (30) is coupled to a unimorph or bimorph, which is made by attaching a piezoelectric or electrostrictive substrate to an elastic body (20) (metal), so that a movable body (40) fitted over the movable shaft (30) is linearly moved along the movable shaft (30) by vibration of the piezoelectric or electrostrictive substrate, thus simplifying a manufacturing process, being easily practicable according to a basic principle, and having superior characteristics.
    Type: Application
    Filed: February 4, 2005
    Publication date: May 31, 2007
    Applicant: PIEZOELECTRIC TECHNOLOGY CO., LTD.
    Inventors: Vasiljef Piotr, Bo Keun Kim, Seok Min Yoon, Seong Yil Yoon