Patent ID: 9478360
Filing Date: 2016-10-25
CPC Classification: B22F,C22C,H01G

Claim Text:
1. A method for producing a capacitor anode by forming tungsten powder into a molded body having a molded density of 8 g/cm 3 or more, sintering the molded body to have a sintered density 1.15 times or higher than the molded density and obtaining a tungsten sintered body having an average pore diameter of 0.3 μm or less, wherein the tungsten powder has an average particle size of 0.5 μm or less, and the tungsten powder having an average particle size of 0.5 μm or less is granulated into granulated powder at a temperature of 1,480° C. or more, and the granulated powder is formed to the molded body having a molded density of 8 g/cm