The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 13, 2000

Filed:

Jul. 29, 1996
Applicant:
Inventors:

Takehide Okami, Matsuidamachi, JP;

Tokio Sekiya, Matsuidamachi, JP;

Takeshi Hashimoto, Matsuidamachi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
442 16 ; 442 19 ; 442 20 ; 442 27 ; 442 29 ; 442 37 ; 442 58 ;
Abstract

Thermally conductive composite sheets which comprise a silicone rubber layer which contains thermally conductive fillers and has an Asker C hardness from 5 to 50, and a porous reinforcing material layer which has pores of at least 0.3 mm in diameter and is incorporated within the silicone rubber layer. The thermally conductive composite sheets of the present invention are superior in thermal conductivity and flexibility (for contact towards the electronic parts and so on) and are suitable for mass production and for the assembly process of electronic instruments. Therefore, utilization of the thermally conductive composite sheets enables the effective production of electronic instruments wherein performance degradation caused by heat hardly occurs.


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