Patents by Inventor Kyle E. Smith

Kyle E. Smith 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).

  • Patent number: 5549844
    Abstract: A radiographic phosphor panel, phosphor, and phosphor modification method. The radiographic phosphor panel has a luminescent layer including a mass of phosphor particles. The phosphor particles each have a primary portion and a secondary portion. The secondary portion is exterior to and continuous with the primary portion. The primary portion includes a primary phosphor having a combination of species characterized by the relationship:MFX.sub.1-z I.sub.z .multidot.uM.sup.a X.sup.a :yA:eJ:tD:dSThe secondary portion includes a secondary phosphor having a combination of species characterized by the relationship:M'FX'.sub.1-z+q I.sub.z-q .multidot.u'M.sup.a 'X.sup.a ':y'A':e'J':t'D':d'SIn these relationships, M and M' are selected from Mg, Ca, Sr, and Ba; X and X' are selected from Cl and Br; M.sup.a and M.sup.a ' are selected from Na, K, Rb, and Cs; X.sup.a and X.sup.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: August 27, 1996
    Assignee: Eastman Kodak Company
    Inventors: Joseph F. Bringley, Kyle E. Smith, Patrick M. Lambert
  • Patent number: 5549843
    Abstract: A method, a storage phosphor prepared by the method, and a storage panel. In the method, a precursor mixture is fired, at a temperature between 700.degree. C. and the melting point of the phosphor, to produce an intermediate product. The precursor mixture comprises a combination of species characterized by the relationship:MFX.sub.1-x I.sub.z.uM.sup.a X.sup.a :yA:eQwherein M is selected from Mg, Ca, Sr and Ba; X is selected from Cl and Br; M.sup.a is selected from Na, K, Rb and Cs; X.sup.a is selected from F, Cl, Br and I; A is selected from Eu, Ce, Sm, and Tb; Q is metal oxide; and 0<z.ltoreq.1; 0<u<1; 0<y.ltoreq.0.1; and 0<e<0.1. The intermediate product is then annealed in a slightly oxidizing atmosphere, at a temperature, which is lower than said temperature of firing and between about 400.degree. C. and about 800.degree. C., for a time sufficient to reduce the erase fraction of the resulting phosphor relative to the same phosphor produced by firing in the same manner, but not annealing.
    Type: Grant
    Filed: November 21, 1991
    Date of Patent: August 27, 1996
    Assignee: Eastman Kodak Company
    Inventors: Kyle E. Smith, Joseph F. Bringley, Patrick M. Lambert, David P. Trauernicht, Philip S. Bryan, Paul M. Hoderlein, Andrea M. Hyde