# US 8,770,499 B2 · Method for manufacturing powder > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,770,499 B2 - Document ID: US8770499B2 - Status: Granted - Kind: B2 - Application number: 14/003,609 - Filed: 2012-02-24 - Published: 2013-12-19 - Granted: 2014-07-08 - Earliest claimed: 2011-03-16 - Assignees: Nisshin Seifun Group Inc. - Applicants: Kazumi Kozawa; Kosuke Ando; Daisuke Sato - Inventors: Kazumi Kozawa; Kosuke Ando; Daisuke Sato - Web page: https://patentgrep.com/patent/US8770499B2 ## CPC - B02C 23/18: Adding fluid, other than for crushing or disintegrating by fluid energy ({for tumbling mills B02C17/186;} feeding devices B02C23/02) - B02C 19/061: {of the cylindrical type (B02C19/068 takes precedence)} - C04B 35/6261: {Milling} - C04B 35/6263: {characterised by their solids loadings, i.e. the percentage of solids} - C04B 35/6264: {Mixing media, e.g. organic solvents} - C04B 35/62655: {Drying, e.g. freeze-drying, spray-drying, microwave or supercritical drying} - C04B 2235/3236: Alkaline earth titanates - C04B 2235/5445: submicron sized, i.e. from 0,1 to 1 micron - C04B 2235/5481: Monomodal - B02C: CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN ({household tools and machines for pulverising foodstuffs, e.g. coffee and spice mills A47J42/00; pharmaceutical mortars A61J3/02; mechanical processing of refuse and garbage B03B9/06; dressing mould materials by grinding B22C5/04}; obtaining metallic powder by crushing, grinding or milling B22F9/04; {recovery of plastics by disintegrating B29B17/00; crushing raw materials in starch making C08B30/02; beaters for papermaking D21D1/02; crushing devices specially for transport in mines E21F13/002; slag crushing devices F23J1/00; fuel milling devices in combustion apparatus F23K1/00; household devices for crushing coal F24B15/02; ice disintegrating devices F25C5/02}) - C04B: LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE {(roofing granules E04D7/005)}; CERAMICS (devitrified glass-ceramics C03C10/00); REFRACTORIES; TREATMENT OF NATURAL STONE ## Abstract A method for manufacturing a powder includes a mixing step in which a powder and a liquid additive are mixed together, a drying step in which the powder mixed in the mixing step is dried, a loading step in which the powder dried in the drying step is loaded into a pulverizer, a heating step in which a high-pressure gas is heated, a supplying step in which the high-pressure gas heated in the heating step is supplied to the pulverizer, and a pulverizing step in which the powder is pulverized by the pulverizer. ## Claims ### Claim 1 A method for manufacturing a powder comprising: a mixing step in which a powder and a liquid additive are mixed together; a drying step in which the powder mixed in the mixing step is dried; a loading step in which the powder dried in the drying step is loaded into a pulverizer; a heating step in which a high-pressure gas is heated; a supplying step in which the high-pressure gas heated in the heating step is supplied to the pulverizer; and a pulverizing step in which the powder is pulverized by the pulverizer. ### Claim 2 (depends on 1) The method for manufacturing a powder according to claim 1, wherein the liquid additive is diethylene glycol monomethyl ether. ### Claim 3 (depends on 2) The method for manufacturing a powder according to claim 2, wherein the powder is a powder including barium titanate. ### Claim 4 (depends on 3) The method for manufacturing a powder according to claim 3, wherein a drying temperature and a period of time for drying in the drying step correspond to a flash point of the liquid additive. ### Claim 5 (depends on 2) The method for manufacturing a powder according to claim 2, wherein a drying temperature and a period of time for drying in the drying step correspond to a flash point of the liquid additive. ### Claim 6 (depends on 1) The method for manufacturing a powder according to claim 1, wherein the powder is a powder including barium titanate. ### Claim 7 (depends on 6) The method for manufacturing a powder according to claim 6, wherein a drying temperature and a period of time for drying in the drying step correspond to a flash point of the liquid additive. ### Claim 8 (depends on 1) The method for manufacturing a powder according to claim 1, wherein a drying temperature and a period of time for drying in the drying step correspond to a flash point of the liquid additive. ### Claim 9 A method for manufacturing a powder comprising: a mixing step in which a powder and a liquid additive are mixed together; a drying step in which the powder mixed in the mixing step is dried; a loading step in which the powder dried in the drying step is loaded into a pulverizer; a supplying step in which a high-pressure gas is supplied to the pulverizer; and a pulverizing step in which the powder is pulverized by the pulverizer. ### Claim 10 (depends on 9) The method for manufacturing a powder according to claim 9, wherein the liquid additive is diethylene glycol monomethyl ether. ### Claim 11 (depends on 10) The method for manufacturing a powder according to claim 10, wherein the powder is a powder including barium titanate. ### Claim 12 (depends on 11) The method for manufacturing a powder according to claim 11, wherein a drying temperature and a period of time for drying in the drying step correspond to a flash point of the liquid additive. ### Claim 13 (depends on 10) The method for manufacturing a powder according to claim 10, wherein a drying temperature and a period of time for drying in the drying step correspond to a flash point of the liquid additive. ### Claim 14 (depends on 9) The method for manufacturing a powder according to claim 9, wherein the powder is a powder including barium titanate. ### Claim 15 (depends on 14) The method for manufacturing a powder according to claim 14, wherein a drying temperature and a period of time for drying in the drying step correspond to a flash point of the liquid additive. ### Claim 16 (depends on 9) The method for manufacturing a powder according to claim 9, wherein a drying temperature and a period of time for drying in the drying step correspond to a flash point of the liquid additive.