Resources Contact Us Home
Ultrasonic transducer

Image Number 10 for United States Patent #4881212.

This invention is basically, an ultrasonic transducer that can be configured with good reproducibility, that includes an acoustic impedance matching member that gradually changes the acoustic impedance, and which is characterized byAn acoustic impedance matching member(2) configured with multiple unit layers (21, 22, 23, . . . 2n), each layer being thinner than a quarter-wavelength of an ultrasonic wave, andeach unit layer having a laiminated structure make up of heavy metal(52) and plastic(51) layers with a thickness ratio set between them to change gradually from the unit layer close to the ultrasonic oscillator to the unit layer close to the subject.

  Recently Added Patents
Consistent retention and disposition of managed content and associated metadata
Process for the production of alcohol
Display device and method of manufacturing the same
Multiplexing channels by a medium access controller
Keypad assembly for electronic devices
Duty cycle adjustment of remote illumination source to maintain illumination output
  Randomly Featured Patents
Clutch assembly with vibration damper
Network number management system and switch
Axel retracter
Vehicle turn speed control
Method and system for power control in radio transmitters
Multi-density shoe sole
Vehicle seat with lordosis support
Multi-point touch-sensitive system
Compact camera
Optoelectric converting substrate