Patents by Inventor Joseph T Guy

Joseph T Guy 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: 6258451
    Abstract: The present invention is directed to a recording medium for recording with a phase change ink. The medium comprises a substrate with a support layer and an adhesive layer coated thereon. The adhesive layer coated on said support layer at a coating weight of no more than 10 mg/dm2, comprises a blooming crosslinker and the adhesive layer is soluble in the phase change ink.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: July 10, 2001
    Assignee: AGFA Gevaert N.V.
    Inventors: Jose Esteban Valentini, Jose A Siqueira, John Thomas Chandler, Joseph T Guy
  • Patent number: 5169748
    Abstract: A high resolution radiography system is presented utilizing a an intensifying screen incorporating a UV emitting phosphor. The photographic element exhibits enhanced sensitivity to the emission of the phosphor and further comprises at least one compound selected from the group comprising: ##STR1## wherein R.sub.1 =substituted or unsubstituted aromatic ring; R.sub.2 =H, substituted or unsubstituted alkyl or substituted or unsubstituted aryl; R.sub.3 =an alkyl group, an aryl group, a COOR group wherein R is hydrogen, alkyl, aryl or an alkali metal cation, HNR4+ wherein R.sub.4 is alkyl, substituted alkyl or alkyaryl.
    Type: Grant
    Filed: November 7, 1991
    Date of Patent: December 8, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Bernard A. Apple, Dietrich M. Fabricius, Joseph T. Guy
  • Patent number: 4900715
    Abstract: Superconducting compositions of the general formula A.sub.n Q.sub.m Cu.sub.3 O.sub.y are prepared by wet mixing a combination organic acid salts, inorganic acid salts and oxides of A, Q and Cu, wherein at least one salt is an organic acid salt, drying the mixed salts, and then heating the resultant mixed salts to a temperature between 500.degree. and 950.degree. C. The temperature is maintained for a time sufficient to form a substantially orthorhombic superconducting composition. The method achieves good results with only one heating step. The presence of at least one organic salt causes carbonate and nitrate salts of A, Q and Cu to convert to oxides at temperatures between 300.degree. and 400.degree. C. With lower processing temperatures, semiconductor materials and superconducting materials can be processed together.
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: February 13, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: John C. Cooper, Ramanathan Panayappan, Joseph T. Guy