Patents by Inventor Kee-Chuan Pan

Kee-Chuan Pan 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: 6384529
    Abstract: A full-color active matrix organic light-emitting color display panel is disclosed which has an integrated shadow mask structure for patterning arrays of color subpixels. The in-situ shadow mask structure is prepatterned on the display substrate by conventional photolithography, and provides a simple, self-alignment feature for successive deposition of color organic electroluminescent (EL) media on designated color subpixel areas. The pillar structure of the shadow mask are particularly effective in the fabrication of high-resolution full-color organic light-emitting diode displays having either color conversion layers or individual red, green, and blue emissive layers.
    Type: Grant
    Filed: November 18, 1998
    Date of Patent: May 7, 2002
    Assignee: Eastman Kodak Company
    Inventors: Ching W. Tang, Kee-Chuan Pan
  • Publication number: 20020011785
    Abstract: A full-color active matrix organic light-emitting color display panel is disclosed which has an integrated shadow mask structure for patterning arrays of color subpixels. The in-situ shadow mask structure is prepatterned on the display substrate by conventional photolithography, and provides a simple, self-alignment feature for successive deposition of color organic electroluminescent (EL) media on designated color subpixel areas. The pillar structure of the shadow mask are particularly effective in the fabrication of high-resolution full-color organic light-emitting diode displays having either color conversion layers or individual red, green, and blue emissive layers.
    Type: Application
    Filed: November 18, 1998
    Publication date: January 31, 2002
    Inventors: CHING W. TANG, KEE-CHUAN PAN
  • Patent number: 6168901
    Abstract: There is disclosed a recordable optical element that has a substrate and on the surface of the substrate, a recording layer and a light reflecting layer. The recording layer has a material with the formula TeaGebCcHdOe wherein a, b, c, d, and e are atomic percents and (c+d)>40, d>10, a>5, b>5, and e≧0 such that a+b+c+d+e=100; and the reflecting layer and the recording layer being selected such that the element Rmax or Rmin (element reflectivity) is about or greater than 70% at about 780 nm.
    Type: Grant
    Filed: March 7, 1995
    Date of Patent: January 2, 2001
    Assignee: Eastman Kodak Company
    Inventors: Yuan-Sheng Tyan, Pranab K Raychaudhuri, Kee-Chuan Pan, George R Olin
  • Patent number: 6066357
    Abstract: Methods of making a full-color organic light-emitting display are disclosed. The methods include ink-jet printing of fluorescent dopants selected to produce red, green, or blue light emission from designated subpixels of the display. The dopants are printed sequentially from ink-jet printing compositions which permit printing of dopant layers over a light-emitting layer containing a host material selected to provide host light emission in a blue spectral region. The dopants are diffused from the dopant layer into the light-emitting layer by exposing the light-emitting layer and the dopant layers to vapor of a fluid or fluid mixture. When an ink-jet printing composition is formulated with a printing fluid having fluid vapors which promote dopant diffusion, the steps of ink-jet printing and diffusing of dopants can be combined to form a selectively doped light-emitting layer.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: May 23, 2000
    Assignee: Eastman Kodak Company
    Inventors: Ching W. Tang, Kee-Chuan Pan
  • Patent number: 6048573
    Abstract: A method of making an organic light-emitting device is disclosed in which a dopant layer is formed adjacent to a light-emitting layer containing a light-emitting host material. The dopant is diffused from the dopant layer into the light-emitting layer by exposing the light-emitting layer and the dopant layer to vapor of a fluid or fluid mixture. The method permits doping of a light-emitting layer with one dopant or with multiple dopants so as to modify the color and efficiency of light emitted from the light-emitting layer.
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: April 11, 2000
    Assignee: Eastman Kodak Company
    Inventors: Ching W. Tang, Kee-Chuan Pan
  • Patent number: 5849458
    Abstract: For an optical recordable disk, a heat conductive gold layer can be deposited on a phase-change recordable layer to increase the writing threshold. This higher threshold improves the data stability during readout. However, it has been found that there is substantial inter-diffusion between the phase-change layer and the gold layer. The performance is degraded as a result. A barrier layer between the phase-change layer and the gold layer can effectively prevent diffusion and mixing. Using his barrier, the performance is preserved and the data stability is improved.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: December 15, 1998
    Assignee: Eastman Kodak Company
    Inventors: Kee-Chuan Pan, Yuan-Sheng Tyan, Guiseppe Farruggia, Donald R. Preuss
  • Patent number: 5196284
    Abstract: An optical recording element comprising a thin film optical recording layer of an alloy is disclosed. The alloy is represented by the formula:Sb.sub.x Cd.sub.1-xwherein x is between about 0.68 and 0.83, and the formula:Sb.sub.x Cd.sub.y Sn.sub.z,wherein Sb.sub.x Cd.sub.y Sn.sub.z is within the polygon enclosed by Sb.sub.83 Cd.sub.17 -Sb.sub.46 Cd.sub.24 Sn.sub.30 -Sb.sub.42 Cd.sub.46 Sn.sub.12 -Sb.sub.68 Cd.sub.32 in a ternary Sb-Cd-Sn composition diagram.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: March 23, 1993
    Assignee: Eastman Kodak Company
    Inventors: Kee-chuan Pan, Yuan-sheng Tyan, Fridrich Vazan
  • Patent number: 5077181
    Abstract: Antimony-tin alloys including a third element are useful for phase change optical recording. Some preferred alloys have a higher amorphous to crystalline transition temperature and thus, amorphous areas are stable for longer periods. Other preferred alloys exhibit improved CNR or lower noise or other improved performance characteristics.
    Type: Grant
    Filed: May 2, 1990
    Date of Patent: December 31, 1991
    Assignee: Eastman Kodak Company
    Inventors: Kee-Chuan Pan, Yuan-Sheng Tyan, Fridrich Vazan, Donald R. Preuss
  • Patent number: 5015548
    Abstract: An optical recording element comprising a thin film optical recording layer of an alloy is disclosed. The alloy is represented by the formula Sb.sub.x Te.sub.1-x, wherein x is between about 0.58 and 0.75. The alloys have short erasure times (amorphous to crystalline transition) and excellent environmental stability.
    Type: Grant
    Filed: June 21, 1990
    Date of Patent: May 14, 1991
    Assignee: Eastman Kodak Company
    Inventors: Kee-Chuan Pan, Yuan-sheng Tyan, Fridrich Vazan
  • Patent number: 4981772
    Abstract: Antimony-tin alloys including a third element are useful for phase change optical recording. Some preferred alloys have a higher amorphous to crystalline transition temperature and thus, amorphous areas are stable for longer periods. Other preferred alloys exhibit improved CNR or lower noise or other improved performance characteristics.
    Type: Grant
    Filed: October 16, 1989
    Date of Patent: January 1, 1991
    Assignee: Eastman Kodak Company
    Inventors: Kee-Chuan Pan, Yuan-Sheng Tyan, Fridrich Vazan, Donald R. Preuss
  • Patent number: 4960680
    Abstract: Recording and record elements are disclosed. The elements have thin film optical recording layers of the SbInSn alloy. The alloy has a composition within a polygon abcdefg in a ternary SbInSn composition diagram as shown in FIG. 7 herein.
    Type: Grant
    Filed: September 25, 1989
    Date of Patent: October 2, 1990
    Assignee: Eastman Kodak Company
    Inventors: Kee-Chuan Pan, Yuan-Sheng Tyan, Donald R. Preuss
  • Patent number: 4865955
    Abstract: Optical recording and record elements are provided. The elements comprise a write-once amorphous thin-film optical recording layer of an alloy having a composition within a polygon in a ternary composition diagram of antimony, aluminum, and tin; wherein(a) the composition diagram is according to FIG.
    Type: Grant
    Filed: October 11, 1988
    Date of Patent: September 12, 1989
    Assignee: Eastman Kodak Company
    Inventors: Kee-Chuan Pan, Yuan-Sheng Tyan, Fridrich Vazan
  • Patent number: 4812386
    Abstract: Recording and record elements are disclosed. The elements have thin film optical recording layers of a SbSnGe alloy. The alloy has a composition within a polygon ABCDEF in a ternary SbSnGe composition diagram as shown in FIG. 5 herein.
    Type: Grant
    Filed: May 23, 1988
    Date of Patent: March 14, 1989
    Assignee: Eastman Kodak Company
    Inventors: Kee-Chuan Pan, Yuan-Sheng Tyan, Salvatore J. Marino
  • Patent number: 4812385
    Abstract: Optical recording and record elements are provided. The elements comprise a write-once amorphous thin-film optical recording layer of an alloy having a composition within a polygon in a ternary composition diagram of antimony, zinc, and tin; wherein(a) the composition diagram is according to FIG.
    Type: Grant
    Filed: May 23, 1988
    Date of Patent: March 14, 1989
    Assignee: Eastman Kodak Company
    Inventors: Kee-Chuan Pan, Yuan-Sheng Tyan, Donald R. Preuss
  • Patent number: 4798785
    Abstract: Optical recording and record elements are provided. The elements comprise a write-once amorphous thin-film optical recording layer of an alloy having a composition within a polygon in a ternary composition diagram of antimony, aluminum, and tin; wherein(a) the composition diagram is according to FIG.
    Type: Grant
    Filed: June 5, 1987
    Date of Patent: January 17, 1989
    Assignee: Eastman Kodak Company
    Inventors: Kee-Chuan Pan, Yuan-Sheng Tyan, Fridrich Vazan
  • Patent number: 4795695
    Abstract: Recording and record elements are disclosed. The elements have thin film optical recording layers of a SbSnGe alloy. The alloy has a composition within a polygon ABCDEF in a ternary SbSnGe composition diagram as shown in FIG. 5 herein.
    Type: Grant
    Filed: February 13, 1987
    Date of Patent: January 3, 1989
    Assignee: Eastman Kodak Company
    Inventors: Kee-Chuan Pan, Yuan-Sheng Tyan, Salvatore J. Marino
  • Patent number: 4774170
    Abstract: Optical recording and record elements are provided. The elements comprise a write-once amorphous thin-film optical recording layer of an alloy having a composition within a polygon in a ternary composition diagram of antimony, zinc, and tin; wherein(a) the composition diagram is according to FIG.
    Type: Grant
    Filed: June 5, 1987
    Date of Patent: September 27, 1988
    Assignee: Eastman Kodak Company
    Inventors: Kee-Chuan Pan, Yuan-Sheng Tyan, Donald R. Preuss