Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Device and implantation system for electrical stimulation of biological systems
Semiconductor device and method for fabricating the same
Electrical installation arrangement
Method and apparatus for internet on-line insurance policy service
Apparatus and method for exerting force on a subject tissue
Method and system for streaming digital video content to a client in a digital video network
JTAG multiplexer with clock/mode input, mode/clock input, and clock output
  Randomly Featured Patents
Plugs
Phonetic data processing system and method
Methods of inhibiting B lymphocytes using antibodies to Neutrokine-alpha
Tape dispenser
Self tensioning belt drive
Defect inspection apparatus and its method
Angle-measuring instrument with a coarse-fine drive arrangement
Width detector system
Water recycling system
Drawing aid device