Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Sound absorbing body, sound absorbing structural body, and method of manufacturing these bodies










Image Number 4 for United States Patent #7364014.

A sound absorbing body 40 has a molded body 44 including two unexpanded layers 41, 42 and an expanded layer 43 having a number of voids and held between these unexpanded layers 41, 42, a plurality of holes 41A of a depth that passes through the unexpanded layer 41 and does not reach the other unexpanded layer 42 are formed at any positions on the molded body 44, a cross-sectional area of the hole 41A is in the range from 0.785 to 314 mm.sup.2, and the pitch is 1 mm or larger. Laminating a plurality of materials is not required, and both the sound absorbing capability and sound insulating capability can be secured by integral molding, and further, only unpleasant sounds can selectively be absorbed.








 
 
  Recently Added Patents
Identifying users of remote sessions
Systems and methods for a signed magnitude adder in one's complement logic
Systems and methods for managing policies on a computer
Compositions and processes for forming photovoltaic devices
Dynamic report mapping apparatus to physical data source when creating report definitions for information technology service management reporting for peruse of report definition transparency a
Wristwatch
Grip for a racket
  Randomly Featured Patents
Fluorescent hplc assay for 20-hete and other p-450 metabolites of arachidonic acid
Low polarization beam splitter
Wireless communication apparatus and wireless reception method
Method of recording register marks
Method for controlling an electronic overcurrent trip for low-voltage circuit breakers
Imaging apparatus
Method and apparatus for stereotactic trajectory specification
Boot
Rack shaft support device
Articulated modular table