Speaker voice coil bobbin and method of manufacturing same

   
   

A voice coil bobbin 1 is formed from a material combining a fiber-type material and a ceramic-type-coating agent including metal alkoxide, metal hydroxide, and a colloidal or fine-particulate inorganic substance. The combining process for the ceramic-type-coating agent is performed before or after the fiber-type material is formed into a shape of the voice coil bobbin 1.

 
Web www.patentalert.com

< Method and device for displaying image

< Projection optical system, exposure apparatus and exposure method

> Semiconductor device and method of manufacturing the same, apparatus for manufacturing semiconductor device, circuit boa and electronic instrument

> Method and apparatus for cleaning substrates

~ 00189