A metal-containing particle aggregate of an embodiment of the present invention includes a plurality of core-shell particles. Each of the core-shell particles includes: a core portion that contains at least one magnetic metal element selected from the first group consisting of Fe, Co, and Ni, and at least one metal element selected from the second group consisting of Mg, Al, Si, Ca, Zr, Ti, Hf, Zn, Mn, rare-earth elements, Ba, and Sr; and a shell layer that includes a carbon-containing material layer and an oxide layer that covers at least part of the core portion and includes at least one metal element that belongs to the second group and is contained in the core portion.

Claims

16 · 2 independent · depth 4

16 granted claims

›1.independentA metal-containing particle aggregate comprising:na plurality of core-shell particles each comprisingna core portion containing at least one magnetic …+8

›2.↳ 1The metal-containing particle aggregate according to claim 1, wherein an amount of oxygen contained in the metal-containing particle aggregate is 0.5 …d2

›3.↳ 1The metal-containing particle aggregate according to claim 1, wherein the carbon-containing material layer is a product of decomposition of a hydrocar…d2

›4.↳ 1The metal-containing particle aggregate according to claim 1, wherein, when the carbon-containing material layer is heated in a hydrogen atmosphere, a…d2+1

›6.↳ 1The metal-containing particle aggregate according to claim 1, wherein the carbon-containing material layer is made of an organic compound.d2+2

›9.↳ 1The metal-containing particle aggregate according to claim 1, further comprising:noxide particles containing at least one element that belongs to the …d2

›10.independentA method of manufacturing a metal-containing particle aggregate, comprising:nforming a core portion that is an alloy particle containing at least one …+6

›11.↳ 10The method of manufacturing a metal-containing particle aggregate according to claim 10, wherein the forming the core portion includes placing at leas…d2

›12.↳ 10The method of manufacturing a metal-containing particle aggregate according to claim 10, wherein the forming the carbon-containing material layer incl…d2

›13.↳ 10The method of manufacturing a metal-containing particle aggregate according to claim 10, wherein the forming the carbon-containing material layer incl…d2

›14.↳ 10The method of manufacturing a metal-containing particle aggregate according to claim 10, further comprising removing the carbon-containing material la…d2+2

Classifications

7 codes

IPC · International Patent Classification

Section B — Performing operations; transporting

B32B5/16

USPC · US Patent Classification

428/403428/406427/212428/404428/405428/407

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Pendency

3.2 y

1,175 days filing → grant

Office actions

non-final + final

Responses

no RCE

Examiner

Leszek Kiliman

art unit 1788 · TC 1700

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Citations: 33 back · 0 forward

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1 priority documents

›Priority documents — 1

Type	Document	Date
related publication	US 20120049100 A1	1 Mar 2012

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