Patents by Inventor Albert D. Adriaensens

Albert D. Adriaensens has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Photostimulable phosphor and radiation image recording and reproducing method
    Patent number: 5629125
    Abstract: A photostimulable phosphor, wherein said phosphor is within the scope of the following empirical formula (A):Ba.sub.1-x-y-p-z Sr.sub.x M.sub.y.sup.II Cs.sub.2p F.sub.2-a-b Br.sub.a X.sub.b :zEuwherein:X is at least one halogen selected from the group consisting of Cl and I,M.sup.II is at least one alkaline earth metal selected from the group consisting of Ca and Mg;x is in the range 0.10.ltoreq.x.ltoreq.0.55;a is in the range 0.70.ltoreq.a.ltoreq.0.96;y is in the range 0.ltoreq.y.ltoreq.0.10;b is in the range 0.ltoreq.b<0.15;p is in the range 10.sup.-4 .ltoreq.p.ltoreq.10.sup.-1 ; andz is in the range 10.sup.-6 .ltoreq.z.ltoreq.10.sup.-2.
    Type: Grant
    Filed: May 10, 1995
    Date of Patent: May 13, 1997
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Paul Leblans, Albert D. Adriaensens, Melvin Tecotzky
  • Photostimulable phosphors
    Patent number: 5547807
    Abstract: A photostimulable phosphor of which the emission intensity at the stimulation wavelength of 550 nm is higher than the emission intensity at the stimulation wavelength of 600 nm, characterized in that said phosphor is a divalent europium activated barium fluorobromide containing as codopant samarium, and wherein the terminology barium fluorobromide stands for an empirical formula wherein (1) a minor part of the barium (less than 50 atom %) is replaced optionally by at least one metal selected from the group consisting of a monovalent alkali metal, a divalent alkaline earth metal other than barium, and a trivalent metal selected from the group consisting of Al, Ga, In, Tl, Sb, Bi, Y, and a rare earth metal selected from the group consisting of Ce, Pr, Nd, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, (2) a minor part (less than 50 atom %) of the bromine is replaced by chlorine, and/or iodine, and (3) wherein fluorine is present stoichiometrically in a larger atom % than bromine taken alone or bromine combined with chlorin
    Type: Grant
    Filed: March 15, 1995
    Date of Patent: August 20, 1996
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Paul Leblans, Albert D. Adriaensens, Melvin Tecotzky, Jan A. Van den Bogaert
  • Photostimulable phosphor for use in radiography
    Patent number: 5514298
    Abstract: A photostimulable rare earth metal doped barium strontium fluoride phosphor, characterized in that said phosphor is within the scope of following empirical formula (I):Ba.sub.1-x Sr.sub.x F.sub.2-a-b Br.sub.a X.sub.b :zAwherein:X is at least one member selected from the group consisting of Cl and I;x is in the range 0.06.ltoreq.x.ltoreq.0.50;a is in the range 0.75.ltoreq.a.ltoreq.0.96;b is in the range 0.ltoreq.b<0.15;z is in the range 10.sup.-7 <z.ltoreq.0.15, andA is Eu.sup.2+ and wherein fluorine is present stoichiometrically in said phosphor in a larger atom % than bromine taken alone or bromine combined with chlorine and/or iodine.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: May 7, 1996
    Assignee: Agfa-Gevaert, N.V.
    Inventors: David R. Terrell, Albert D. Adriaensens, Lodewijk M. Neyens, Melvin Tecotzky, Benjamas S. Davis
  • Photostimulable phosphors
    Patent number: 5422220
    Abstract: A photostimulable phosphor of which the emission intensity at the stimulation wavelength of 550 nm is higher than the emission intensity at the stimulation wavelength of 600 nm, characterized in that said phosphor is a divalent europium activated barium fluorobromide containing as codopant samarium, and wherein the terminology barium fluorobromide stands for an empirical formula wherein (1) a minor part of the barium (less than 50 atom %) is replaced optionally by at least one metal selected from the group consisting of a monovalent alkali metal, a divalent alkaline earth metal other than barium, and a trivalent metal selected from the group consisting of Al, Ga, In, Tl, Sb, Bi, Y, and a rare earth metal selected from the group consisting of Ce, Pr, Nd, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, (2) a minor part (less than 50 atom %) of the bromine is replaced by chlorine, and/or iodine, and (3) wherein fluorine is present stoichiometrically in a larger atom % than bromine taken alone or bromine combined with chlorin
    Type: Grant
    Filed: May 16, 1994
    Date of Patent: June 6, 1995
    Assignee: Agfa-Gevaert N.V.
    Inventors: Paul Leblans, Albert D. Adriaensens, Melvin Tecotzky, Jan A. Van den Bogaert