Patents Examined by Jeffrery A. Hofsass
  • Radio wave receiving signaling device
    Patent number: 6020819
    Abstract: A radio wave receiving signaling device includes an antenna (22) having a coil (22a). An electrically capacitive buzzer (21) is activated by alarm output device (AO) to generate sound when the receiving antenna (22) receives a sound generation instructing signal. The buzzer (21) and all or part of the coil (22a) of the receiving antenna (22) are connected to form a booster circuit to raise a voltage to be applied to the buzzer (21) by a resonance function.
    Type: Grant
    Filed: February 12, 1998
    Date of Patent: February 1, 2000
    Assignee: Kubota Corporation
    Inventors: Hiroyuki Fujiuchi, Akira Saito, Kenji Uchida, Masayuki Yao, Mitsuhiko Nakajima, Shigeyoshi Takatori, Yasuhiro Noma, Hisakazu Okumura, Yukio Saito