Patent · US Expired

Heat sink material

US6927421B2 · kind B2 · utility

7Cited by
5References
35Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 24, 2002
Grant dateAug 9, 2005
Priority date
Expiry dateApr 18, 2023

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/30
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

A mass of graphite is placed into a case, and the case is put into a furnace (step S301). The space in the furnace is heated to produce a porous sintered body of graphite (step S302). Thereafter, the case with the porous sintered body contained therein is removed from the furnace, and put into a cavity in a press (step S303). Then, a molten mass of a metal is poured into the case (step S304), and a punch is inserted into the cavity to press the molten metal into the porous sintered body in the case (step S305).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.