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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Sumiya; Keiji
Address:
Tsukuba, JP
No. of patents:
8
Patents:












Patent Number Title Of Patent Date Issued
7785416 Crucible and single crystal growth method using crucible August 31, 2010
Provided are a crucible which prevents polycrystal formation to easily allow growth of optical part material single crystals, and a single crystal growth method employing the crucible. The crucible has a smooth surface of about Rmax 3.2 s as the surface roughness of the wall surface
7692153 Scintillator crystal and radiation detector April 6, 2010
A scintillator crystal represented by the following general formula (1). Ln.sub.(1-y)Ce.sub.yX.sub.3:M (1) wherein Ln.sub.(1-y)Ce.sub.yX.sub.3 represents the chemical composition of the matrix material, Ln represents one or more elements selected from the group consisting of rare earth
7510671 Inorganic scintillator and process for its fabrication March 31, 2009
The inorganic scintillator of the invention is an inorganic scintillator capable of producing scintillation by radiation, which is a crystal comprising a metal oxide containing Lu, Gd, Ce and Si and belonging to space group C2/c monoclinic crystals, and which satisfies the condition
7399360 Crucible and method of growing single crystal by using crucible July 15, 2008
Provided are a crucible which prevents polycrystal formation to easily allow growth of optical part material single crystals, and a single crystal growth method employing the crucible. The crucible has a smooth surface of about Rmax 3.2s as the surface roughness of the wall surface 1
7301154 Inorganic scintillator November 27, 2007
The inorganic scintillator of the invention is an inorganic scintillator capable of producing scintillation by radiation, which is a crystal comprising a metal oxide containing Lu, Gd, Ce and Si and belonging to space group C2/c monoclinic crystals, and which simultaneously satisfies
7282718 Inorganic scintillator and process for its fabrication October 16, 2007
This invention provides an inorganic scintillator capable of producing scintillation by radiation, which is a crystal comprising metal oxides including Lu, Gd, Ce and Si, which satisfies the condition specified by the following inequality (1A): 0.0025.ltoreq.{A.sub.Ce/(A.sub.Lu+A.sub
7282161 Inorganic scintillator October 16, 2007
The present invention provides an inorganic scintillator including a matrix material comprising a metal oxide, and a luminescence center made of Ce contained in the matrix material, the inorganic scintillator being adapted to scintillate in response to a radiation; wherein the matrix
6926847 Single crystals of silicates of rare earth elements August 9, 2005
A single crystal of a silicate of a rare earth element herein provided is characterized in that it has a Ce concentration of not less than 0.6 mole % and not more than 5 mole % and that it has a light transmittance, as determined at a wavelength of 450 nm, of not less than 75%. The singl










 
 
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