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
Method of optimizing air mover performance characteristics to minimize temperature variations in a computing system enclosure
Powerline communication receiver
Method for processing power headroom and terminal thereof
Plants and seeds of hybrid corn variety CH450823
Transferring data by touch between touch-screen devices
Solar-powered roadway light
  Randomly Featured Patents
MPSK spread spectrum communications receiver with carrier recovery and tracking using weighted correlation techniques
Achievement award base
Nitroquinolone derivatives
Dust suppressant for minerals
Nutritional supplements and methods of using same
Combination umbrella and rain cover storage system
Hollow steam guide diffuser having increased pressure recovery
Electronic information apparatus
Sheet member holding apparatus
Elongated adsorbent unit with external fluid communication channels