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
Sheet member and method of manufacturing sheet member
Account and customer creation in an on-line banking model
Hemostatic devices and methods of making same
Embedded package and method for manufacturing the same
Guitar strap attachment means
Curved structural part made of composite material and a process for manufacturing such a part
Apparatus for touch screen avionic device
  Randomly Featured Patents
Article hanging system
Modified mig welding nozzle for stud welder
Cutting cup for sphere making machines
Liquid crystal device having liquid crystal orientation layers including repetitive asymmetrical projects along a plurality of grooves
Balanced fiber composition
Hypocycloidal pinch device
Gas soft-nitriding method
Deaerator, liquid ejecting device, and inkjet recording apparatus
Internal combustion engine system and internal combustion engine control method
Delegated reference count base file versioning