Patents by Inventor Yuiko T. Hayden

Yuiko T. Hayden 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).

  • Phosphate glass useful in high energy lasers
    Patent number: 5526369
    Abstract: In a high energy laser system utilizing phosphate laser glass components to mplify the laser beam, the laser system requires a generated laser beam having an emission bandwidth of less than 26 nm and the laser glass components consist essentially of (on an oxide composition basis):______________________________________ Mole % ______________________________________ P.sub.2 O.sub.5 50-75 Al.sub.2 O.sub.3 >0-10 K.sub.2 O >0-30 MgO 0-30 CaO 0-30 Li.sub.2 O 0-20 Na.sub.2 O 0-20 Rb.sub.2 O 0-20 Cs.sub.2 O 0-20 BeO 0-20 SrO 0-20 BaO 0-20 ZnO 0-20 PbO 0-20 B.sub.2 O.sub.3 0-10 Y.sub.2 O.sub.3 0-10 La.sub.2 O.sub.3 0-8 Ln.sub.2 O.sub.3 0.01-8 ______________________________________whereinthe sum of MgO and CaO is >0-30;the sum of Li.sub.2 O, Na.sub.2 O, Rb.sub.2 O, and Cs.sub.2 O is 0-20;the sum of BeO, SrO, BaO, ZnO, and PbO is 0-20;the sum of B.sub.2 O.sub.3 and Y.sub.2 O.sub.3 is 0-10; andLn.sub.2 O.sub.3 represents the sum of the oxides of active lasing lanthanides of atomic number 58-71.
    Type: Grant
    Filed: October 7, 1992
    Date of Patent: June 11, 1996
    Assignees: Schott Glass Technologies, Inc., The United States of America as represented by the Department of Energy
    Inventors: Yuiko T. Hayden, Stephen A. Payne, Joseph S. Hayden, John H. Campbell, Mary Kay Aston, Melanie L. Elder
  • Phosphate glass useful in high energy lasers
    Patent number: 5173456
    Abstract: A low-or no-silica, low- or no-alkali phosphate glass useful as a laser amplifier in a multiple pass, high energy laser system having a high thermal conductivity, K.sub.90.degree. C. >0.85 W/mK, a low coefficient of thermal expansion, .alpha..sub.20.degree.-300.degree. C. <80.times.10.sup.-7 /.degree.C., low emission cross section, .sigma.<2.5.times.10.sup.-20 cm.sup.2, and a high fluorescence lifetime, .tau.>325 .mu.secs at 3 wt. % Nd doping, consisting essentially of (on an oxide composition basis):______________________________________ Mole % ______________________________________ P.sub.2 O.sub.5 52-72 Al.sub.2 O.sub.3 0-<20 B.sub.2 O.sub.3 >0-25 ZnO 0-31 Li.sub.2 O 0-5 K.sub.2 O 0-5 Na.sub.2 O 0-5 Cs.sub.2 O 0-5 Rb.sub.2 O 0-5 MgO >0-<30 CaO 0-20 BaO 0-20 SrO 0-<20 Sb.sub.2 O.sub.3 0-<1 As.sub.2 O.sub.3 0-<1 Nb.sub.2 O.sub.5 0-<1 Ln.sub.2 O.sub.3 up to 6.5 PbO 0-<5 SiO.sub.2 0-3 ______________________________________whereinLn.sub.2 O.sub.
    Type: Grant
    Filed: December 20, 1990
    Date of Patent: December 22, 1992
    Assignee: Schott Glass Technologies, Inc.
    Inventors: Yuiko T. Hayden, Donna Guesto-Barnak
  • Strengthenable, high non-nd lanthanoid-containing glasses
    Patent number: 5039631
    Abstract: A strengthened high lanthanide-containing glass has the composition of, in mole percent______________________________________ SiO.sub.2 54-75 B.sub.2 O.sub.3 5-17 Li.sub.2 O 0-4 Na.sub.2 O 3-18 K.sub.2 O 0-4 Al.sub.2 O.sub.3 0-7 PbO 0-4 MgO 0-3 CaO 0-3 SrO 0-3 BaO 0-3 ZnO 0.1-10 TiO.sub.2 0-5 Ln.sub.2 O.sub.3 3-7 V.sub.2 O.sub.5 + Cr.sub.2 O.sub.3 + Mn.sub.2 O.sub.3 0-5 Fe.sub.2 O.sub.3 + CoO + NiO + CuO As.sub.2 O.sub.3 /Sb.sub.2 O.sub.3 0-0.4 ______________________________________wherein Ln is La, Ce, Pr, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm and/or Yb.
    Type: Grant
    Filed: January 11, 1990
    Date of Patent: August 13, 1991
    Assignee: Schott Glass Technologies, Inc.
    Inventors: David Krashkevich, Yuiko T. Hayden