An apatite crystal is a single crystal expressed by a general formula (M 2 ) 5 (PO 4 ) 3 X. In this formula, M 2 indicates at least one type of element selected from the group consisting of bivalent alkaline-earth metals and Eu, and X indicates at least one type of element or molecule selected from the group consisting of halogen elements and OH. And the single crystal is of a tubular shape. The outer shape of the apatite may be a hexagonal prism. The shape of an opening of a hole formed in the upper surface or lower surface of the hexagonal prism may be a hexagon.

Claims

15 · 1 independent · depth 4

15 granted claims

›1.independentAn apatite crystal, wherein the apatite crystal is a single crystal expressed by a general formula (M2)5(PO4)3X where M2 indicates at least one type o…+14

›2.↳ 1An apatite crystal according to claim 1, where an outer shape of the apatite crystal is a hexagonal prism, and a shape of an opening of a hole formed …d2+7

›4.↳ 1An apatite crystal according to claim 1, wherein a diameter of the apatite crystal is in a range of 20 nm to 100 μm.d2+2

›5.↳ 1An apatite crystal according to claim 1, wherein a length of the apatite crystal in a longitudinal direction thereof is in a range of 50 nm to 4 mm.d2+1

›6.↳ 1An apatite crystal according to claim 1, wherein a transmittance of the apatite crystal relative to a visible light is greater than or equal to 65%.d2

Classifications

7 codes

IPC · International Patent Classification

Section C — Chemistry; metallurgy

C30B29/60
C30B7/10
C30B29/14
C01B25/455
C30B15/00
C01B25/32
C30B9/12

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Pendency

1.6 y

585 days filing → grant

Office actions

non-final + final

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no RCE

Examiner

Leszek Kiliman

art unit 1788 · TC 1700

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Citations: 13 back · 0 forward

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›Priority documents — 1

Type	Document	Date
related publication	US 20150017442 A1	15 Jan 2015

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