Patents Assigned to Takashi Yamamoto
  • Length polarized, end electroded piezoelectric resonator
    Patent number: 4608509
    Abstract: A piezoelectric resonator utilizing the longitudinal vibration mode of piezoelectric ceramics. Exciting electrodes are formed on the lengthwise opposite end surface of the piezoelectric ceramic. Lengthwise extending surfaces of the piezoelectric ceramic are formed with insulating layers. A pair of take-out electrodes are provided which cover the insulating layers and which are connected to the exciting electrodes.
    Type: Grant
    Filed: November 27, 1984
    Date of Patent: August 26, 1986
    Assignees: Takashi Yamamoto, Houdo Kitajima, Hiroyuki Takahashi
    Inventors: Takashi Yamamoto, Houdo Kitajima, Hiroyuki Takahashi