Patents Assigned to Namika Precision Jewel Co., Ltd.
  • Device for driving vibration actuator
    Patent number: 6411050
    Abstract: In a portable device for driving a vibration actuator by means of a battery, a power supply circuit equipped with a boosting circuit for converting a voltage of a built-in battery 1 into a high voltage and a pulse generating circuit for intermittently supplying power to the vibration actuator is provided, and a boosted DC or AC voltage is impressed on the vibration actuator continuously intermittently or discontinuously.
    Type: Grant
    Filed: August 8, 2000
    Date of Patent: June 25, 2002
    Assignee: Namika Precision Jewel Co., Ltd.
    Inventors: Teruo Yoshinari, Minoru Ueda