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. 26, 2018

Filed:

Mar. 17, 2017
Applicant:

Seiji Kagawa, Koshigaya, JP;

Inventor:

Seiji Kagawa, Koshigaya, JP;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 5/14 (2006.01); C09K 5/08 (2006.01); C09K 5/00 (2006.01); C08J 5/18 (2006.01); C04B 35/536 (2006.01); C04B 35/632 (2006.01); C04B 35/638 (2006.01); C04B 35/64 (2006.01); C01B 32/21 (2017.01); C01B 32/20 (2017.01); H01L 23/373 (2006.01); C04B 35/52 (2006.01); C04B 35/634 (2006.01); C01B 32/194 (2017.01);
U.S. Cl.
CPC ...
C09K 5/14 (2013.01); C01B 32/194 (2017.08); C04B 35/522 (2013.01); C04B 35/638 (2013.01); C04B 35/63416 (2013.01); C04B 35/63424 (2013.01); C04B 35/63432 (2013.01); C04B 35/64 (2013.01); C08J 5/18 (2013.01); H01L 23/373 (2013.01); H01L 23/3737 (2013.01); C04B 2235/424 (2013.01); C04B 2235/425 (2013.01); C04B 2235/602 (2013.01); C04B 2235/604 (2013.01); C04B 2235/656 (2013.01); C04B 2235/9607 (2013.01); C08J 2333/12 (2013.01); H01L 2924/0002 (2013.01); Y10T 428/31938 (2015.04);
Abstract

A heat-dissipating sheet having a density of 2.0 g/cmor more and an in-plane thermal conductivity of 580 W/mK or more, which comprises carbon black uniformly dispersed among fine graphite particles, a mass ratio of fine graphite particles to carbon black being 75/25 to 95/5, and the carbon black being composed of channel black and ketjen black and/or acetylene black is produced by applying a dispersion of fine graphite particles, carbon black and an organic binder in an organic solvent to a surface of a die, drying it; burning the resultant resin-containing composite sheet to remove the organic binder; and then pressing the resultant composite sheet of fine graphite particles and carbon black for densification.


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