Patents Assigned to Suwa Seikosha Co., Ltd.
  • Analog alarm timepiece
    Patent number: 4303997
    Abstract: Since a button-type battery having the minimum capacity is used for wristwatch, the battery voltage is dropped when power is temporarily consumed. When a step motor consuming much power every second and a buzzer for alarm mechanism operate at the same time, current in quantities flows into these two loads. In result, the battery voltage is dropped and the wristwatch runs down. Therefore, this invention aims to shift the timings of those loads' operations.
    Type: Grant
    Filed: February 22, 1980
    Date of Patent: December 1, 1981
    Assignee: Suwa Seikosha Co., Ltd.
    Inventor: Toshiaki Saito