Patents Represented by Attorney Clinton S. Janes, Jr.

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  • Thermal writing on glass and glass-ceramic substrates
    Patent number: 4847138
    Abstract: There is disclosed a method of producing a transition metal pattern on a glass or glass-ceramic substrate by selective exudation of a transition metal from a glass substrate containing the metal as an oxide. The selective exudation is effected by applying an intense, well-focused source of energy to a glass in a pattern corresponding to the desired metal pattern. This develops localized heating, and thereby causes corresponding localized metal exudation from the glass. The metal pattern may be rendered electroconductive, and may constitute a pattern of interconnecting lines for microcircuitry.
    Type: Grant
    Filed: October 7, 1987
    Date of Patent: July 11, 1989
    Assignee: Corning Glass Works
    Inventors: Elizabeth A. Boylan, Gerald D. Fong
  • Providing reinforced alkaline earth aluminosilicate glasses
    Patent number: 4846866
    Abstract: The present invention is directed to the preparation of hybrid composite bodies composed of an essentially alkali-free, alkaline earth aluminosilicate glass matrix reinforced with SiC whiskers and continuous ceramic fibers.
    Type: Grant
    Filed: December 14, 1987
    Date of Patent: July 11, 1989
    Assignee: Corning Glass Works
    Inventors: Kenneth Chyung, Kishor P. Gadkaree, Mark P. Taylor
  • Method of making multifocal lens blanks
    Patent number: 4842632
    Abstract: There is disclosed an improved method of assembling and fusing the segment and major elements of a multifocal lens blank that employs glass spacer members to space the segment from the major element and allow the segment to progressively slump into sealing relationship with the major as fusion temperature is approached. The glass spacer member has a softening point that is lower than that of the major element glass and may approximate that of the segment glass.
    Type: Grant
    Filed: November 3, 1987
    Date of Patent: June 27, 1989
    Assignee: Corning Glass Works
    Inventor: Milford L. Buckley
  • Chemically durable, high index, low density glasses
    Patent number: 4839314
    Abstract: This invention is directed to the production of glasses especially suitable for use as ophthalmic lenses which exhibit indices of refraction between about 1.699-1.703, Abbe numbers equal to or greater than 41.0, densities less than 3.25 g/cm.sup.3, and good resistance to attack by acids. The glasses are essentially free of Al.sub.2 O.sub.3 and consist essentially, in weight percent on the oxide basis, of:______________________________________ SiO.sub.2 33-37 CaO 8-9.5 B.sub.2 O.sub.3 7.5-13 SrO 2-4 SiO.sub.2 + B.sub.2 O.sub.3 44-48 La.sub.2 O.sub.3 12.3-14.5 Li.sub.2 O 5-8 ZrO.sub.2 4-6 Na.sub.2 O 0-2.5 Nb.sub.2 O.sub.5 8-10.5 K.sub.2 O 0-2 TiO.sub.2 5-7 Li.sub.2 O + Na.sub.2 O + K.sub.2 O 5-8 As.sub.2 O.sub.3 0-0.8.
    Type: Grant
    Filed: May 6, 1988
    Date of Patent: June 13, 1989
    Assignee: Corning Glass Works
    Inventors: Jean E. Boudot, Jean P. Mazeau
  • Fluorinated phyllosilicate and method
    Patent number: 4836954
    Abstract: There is disclosed a fluorinated phyllosilicate material and method of producing such material. The material has fluoride ions chemically bonded to a natural phyllosilicate in part at least by exchange with hydroxyl ions. The method comprises exposing a phyllosilicate to a source of fluoride ions, either gaseous, aqueous fluoride solution, or a volatile solid, and chemically bonding flouride ions to the phyllosilicate structure. The fluorinated material may be heated to a temperature in the range of 100.degree.-1000.degree. C., preferably 300.degree.-800.degree. C. to dehydrate the material. Heating at 800.degree. C. may create new crystal phases, such as sellaite (MgF.sub.2) or fluorite (CaF.sub.2).
    Type: Grant
    Filed: December 22, 1987
    Date of Patent: June 6, 1989
    Assignee: Corning Glass Works
    Inventor: Hermann L. Rittler
  • Glass-ceramic substrates for electronic packaging
    Patent number: 4833104
    Abstract: This invention is directed to the preparation of glass-ceramic materials especially suitable for use in multilayer substrates for integrated circuit packages. The inventive glass-ceramics are derived from thermally crystallizable glass which, in the form of frit, are capable of being sintered into an integral body at temperatures below 1000.degree. C. and essentially concurrently crystallized in situ to yield BPO.sub.4 as the predominant crystal phase. The inventive glass-ceramics exhibit a linear coefficient of thermal expansion between about 30-45.times.10.sup.-7 /.degree.C., a dielectric constant less than 5, and consist essentially, in weight percent, of 10-25% B.sub.2 O.sub.3, 20-40% P.sub.2 O.sub.5, and >50-65% SiO.sub.2.
    Type: Grant
    Filed: November 27, 1987
    Date of Patent: May 23, 1989
    Assignee: Corning Glass Works
    Inventors: John F. MacDowell, Robert J. Paisley
  • Vapor/thermal method of delaminating and stabilizing a phyllosilate and product
    Patent number: 4826628
    Abstract: A method of delaminating a phyllosilicate is disclosed wherein the phyllosilicate is heated in the presence of a reactive vapor phase, preferably a hydrogen-containing atmosphere. The delaminated phyllosilicate is less than 1000.ANG. thick, and is stabilized against moisture pickup. The formation of either a layer of a transition metal, or an organic reactive site, on the phyllosilicate surface is also disclosed.
    Type: Grant
    Filed: August 31, 1987
    Date of Patent: May 2, 1989
    Assignee: Corning Glass Works
    Inventor: Hermann L. Rittler
  • Medium refractive index glass suitable for ophthalmic applications
    Patent number: 4822758
    Abstract: This invention is related to glasses particularly useful in the fabrication of multifocal lenses for ophthalmic applications. The inventive glasses exhibit a refractive index between 1.599-1.602, an Abbe number between 40.5-41.5, a density between 2.64-2.66 g/cm.sup.3, a transmission of visible radiation at 400 nm through a thickness of 10 mm greater than 83%, a softening point between 670.degree.-680.degree. C., a birefringence upon sealing, measured as described, between -150 and +150 nm/cm, and consist essentially, expressed in terms of weight percent on the oxide basis, of:______________________________________ SiO.sub.2 52-57 K.sub.2 O 11.0-16.0 B.sub.2 O.sub.3 2.5-7.0 CaO 2-3.5 Al.sub.2 O.sub.3 0-1 ZrO.sub.2 1-1.5 Li.sub.2 O 0.3-0.8 TiO.sub.2 15.0-16.2 Na.sub.2 O 5.4-8.2 As.sub.2 O.sub.3 0.1-0.
    Type: Grant
    Filed: June 23, 1988
    Date of Patent: April 18, 1989
    Assignee: Corning Glass Works
    Inventors: Jean E. Boudot, Jean-Pierre Mazeau
  • Strengthened glass article and method
    Patent number: 4814297
    Abstract: There is disclosed a lithium aluminosilicate glass body encased within, and integral with, a thin, compressive, semicrystalline layer containing beta-eucryptite and/or beta-quartz solid solution crystals, and a method of producing such body. The layer has a substantially lower thermal coefficient of expansion than the glass, but has the same chemical composition as the glass. That composition, in percent by weight on a calculated oxide basis is 55-67% SiO.sub.2, 5.0-7.5% Li.sub.2 O, 22-28% Al.sub.2 O.sub.3, 0-2% Na.sub.2 O and 0-10% ZnO, the molar ratio of R.sub.2 O+RO to Al.sub.2 O.sub.3 being greater than one. Controlled crystallization procedure is described whereby the crystallized layer can be produced in a relatively short time.
    Type: Grant
    Filed: April 1, 1987
    Date of Patent: March 21, 1989
    Assignee: Corning Glass Works
    Inventors: George H. Beall, Joseph E. Pierson, Stanley D. Stookey
  • Lead-free glasses for glaze materials
    Patent number: 4814298
    Abstract: This invention is directed to lead-free and, where desired, cadmium-free frits for glazes and enamels, said frits consisting essentially, in mole percent on the oxide basis, of______________________________________ SiO.sub.2 55-75 Na.sub.2 O 3-9 B.sub.2 O.sub.3 8-13 ZrO.sub.2 2-5 Al.sub.2 O.sub.3 0.5-3 BaO 0.5-16 ______________________________________Various inert refractory materials may be included as fillers.
    Type: Grant
    Filed: October 26, 1987
    Date of Patent: March 21, 1989
    Assignee: Corning Glass Works
    Inventors: John W. Nelson, Linda R. Pinckney
  • Laminated structures containing an inorganic corrugated or honeycomb member
    Patent number: 4808460
    Abstract: This invention relates to the production of laminated structures consisting essentially of a light weight interior member prepared from a glass, glass-ceramic, or ceramic, an exterior member prepared from a glass, glass-ceramic, or ceramic, and a bonding member prepared from a glass, glass-ceramic, or ceramic. The light weight interior member may be composed of a porous body, a corrugated body, or a honeycomb body. In a preferred embodiment, at least one of said members is reinforced through the entrainment of ceramic fibers and/ or whiskers. In the most preferred embodiment, each exterior and interior member is reinforced through the entrainment of ceramic fibers and/or whiskers and the bonding member is reinforced through the entrainment of ceramic whiskers.
    Type: Grant
    Filed: June 2, 1987
    Date of Patent: February 28, 1989
    Assignee: Corning Glass Works
    Inventors: Kenneth Chyung, Steven B. Dawes, Kishor P. Gadkaree, Robert M. Morena, Mark P. Taylor
  • Laminated glass lenses
    Patent number: 4793703
    Abstract: This invention relates to the fabrication of three-layer composite lenses especially suited for ophthalmic applications. The lenses comprise a thin layer of an inorganic glass, desirably photochromic glass, an organic plastic, and an organic adhesive exhibiting flexibility and can be cured at temperatures in the vicinity of room temperature. In general, the linear coefficient of expansion of the glass ranges between about 60-120.times.10.sup.-7 /.degree.C. and that of the plastic between about 200-700.times.10.sup.-7 /.degree.C.
    Type: Grant
    Filed: August 3, 1987
    Date of Patent: December 27, 1988
    Assignee: Corning Glass Works
    Inventor: Edward R. Fretz, Jr.
  • Copper-exuding, boroaluminosilicate glasses
    Patent number: 4788165
    Abstract: There is disclosed a family of low dielectric, copper-exuding, boroaluminosilicate glasses particularly adapted to use in forming substrates for electronic devices such as integrated circuits. The glasses are capable of exuding copper oxide, have a coefficient of thermal expansion of 30-35.times.10.sup.-7 at 300.degree. C., a dielectric constant not over 5.0 at 100 KHz, a loss tangent not over 0.003 at 100 KHz and consist essentially, in percent by weight, of 56-64% SiO.sub.2, 18-25% B.sub.2 O.sub.3, 3-11% Al.sub.2 O.sub.3, 0-2% CaO, 0-2% Li.sub.2 O, 0-1% K.sub.2 O, the Li.sub.2 O+CaO being 1.5-3% and 1-20% CuO.
    Type: Grant
    Filed: October 7, 1987
    Date of Patent: November 29, 1988
    Assignee: Corning Glass Works
    Inventors: Gerald D. Fong, Sheryl L. Hultman
  • Heat treatment of flat photochromic sheet glass
    Patent number: 4786305
    Abstract: This invention is directed to a method for heat treating a sheet of a potentially photochromic glass to cause the growth of silver halide crystals therein which impart photochromic properties thereto, wherein the heat treated sheet will be essentially free from thermal deformation and surface defects, and the photochromic properties exhibited therein will be essentially uniform across the area of the sheet. The method involves first placing a sheet of potentially photochromic glass on top of a sheet of carrier glass that exhibits a softening point at least 50.degree. C. higher than the temperature at which the potentially photochromic glass will be heat treated, and thereafter subjecting the stacked sheets to the heat treatment temperature desired for growing silver halide crystals in the glass.
    Type: Grant
    Filed: August 3, 1987
    Date of Patent: November 22, 1988
    Assignee: Corning Glass Works
    Inventors: Edith M. Ball, Patricia A. Drake, David J. Kerko
  • Phyllosilicate treatment
    Patent number: 4786620
    Abstract: There is disclosed a natural phyllosilicate and, in solid solution therewith, at least one additional silicate or spinel phase such as beta-quartz, beta-spodumene, biotite, donathite, magnetite and Ca.sub.2 MgFe.sub.2 O.sub.6. There is also disclosed a method of producing such solid solution by introducing a phyllosilicate into a salt bath to effect an ion exchange between the salt of the bath and the phyllosilicate and subjecting the ion-exchanged phyllosilicate to a thermal treatment to develop a new phase which forms a solid solution.
    Type: Grant
    Filed: May 12, 1986
    Date of Patent: November 22, 1988
    Assignee: Corning Glass Works
    Inventor: Hermann L. Rittler
  • Glass-ceramic article, process for its production and thermally crystallizable glass
    Patent number: 4786617
    Abstract: This invention relates to the preparation of glass-ceramic articles in which potassium fluorrichterite and/or a related fluormica constitutes the predominant crystal phase(s). The precursor glasses can be crystallized in situ very rapidly and exhibit very little thermal deformation during the crystallization heat treatment. The base glasses are essentially free of Li.sub.2 O and consist essentially, expressed in terms of weight percent on the oxide basis, of:______________________________________ SiO.sub.2 61-70 Na.sub.2 O 0.5-3 BaO 0-3.5 Al.sub.2 O.sub.3 2.75-7 K.sub.2 O 2.5-5.5 P.sub.2 O.sub.5 0-2.5 MgO 11-16 Na.sub.2 O + K.sub.2 O <6.8 CaO 4.75-9 F 2-3.
    Type: Grant
    Filed: March 3, 1988
    Date of Patent: November 22, 1988
    Assignee: Corning Glass Works
    Inventors: Andre Andrieu, Marie J. M. Comte, Frederic J. M. Ferry, Jean-Pierre Mazeau
  • Glass-ceramics containing NZP-type crystals
    Patent number: 4784976
    Abstract: This invention is directed to the production of glass-ceramic articles wherein a NZP-type crystals constitutes essentially the sole crystal phase. The inventive articles are prepared by heat treating precursor glass articles with compositions having the stoichiometry characterized by the formula A.sub.0-4 B.sub.2 (XO.sub.4).sub.3 wherein A represents at least one monovalent or divalent cation selected from the group consisting of Zn, Mg, Mn, Fe, Co, Ni, Cu, Ca, Cd, Sr, Ba, Tb, Li, Na, and K, B represents at least one trivalent, tetravalent, or pentavalent cation selected from the group consisting of Fe, Ti, Cr, Zr, Nb, Mo, In, Sn, Y, and a RE, and X represents P cations which may be partially replaced by Si cations, and the cation ratio B:X is essentially 2:3.
    Type: Grant
    Filed: November 27, 1987
    Date of Patent: November 15, 1988
    Assignee: Corning Glass Works
    Inventor: Bruce G. Aitken
  • Hydrogen-containing gas-ceramics
    Patent number: 4784977
    Abstract: This invention is directed to the production of self-glazing gas-ceramic articles consisting essentially of very fine-grained cubic BPO.sub.4 crystals and very small gas-containing bubbles uniformly distributed with a SiO.sub.2 -rich residual glassy matrix, the gas within the bubbles consisting predominantly of hydrogen. The inventive articles prepared in three basic steps:(1) melting a batch for a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 30-60% SiO.sub.2, 10-40% B.sub.2 O.sub.3, 15-45% P.sub.2 O.sub.5, and up to 20% total of at least one compound in the indicated proportion selected from the group consisting of 5-15% BN, 5-10% Si, 5-10% SiC, and 10-20% Si.sub.3 N.sub.4 ;(2) cooling the melt and shaping a glass body therefrom; and(3) heating the glass body between about 900.degree.-1050.degree. C.
    Type: Grant
    Filed: March 11, 1988
    Date of Patent: November 15, 1988
    Assignee: Corning Glass Works
    Inventor: Bruce G. Aitken
  • Catalysts for accelerating burnout or organic materials
    Patent number: 4778549
    Abstract: This invention relates to a method for accelerating the burnout of organic material from a glass, glass-ceramic, or ceramic body where the burnout is conducted in a gaseous, essentially non-oxidizing atmosphere. The invention comprises incorporating very minute amounts of a metal-containing material into the glass, glass-ceramic, or ceramic body to act as a catalyst in the burnout process. Metals operable as catalysts include Ru, Rh, Pd, Os, Ir, and Pt.
    Type: Grant
    Filed: April 13, 1987
    Date of Patent: October 18, 1988
    Assignee: Corning Glass Works
    Inventors: James H. Cowan, Jr., Frederick E. Noll, Lloyd G. Young
  • Article of manufacture composed of gel
    Patent number: 4777206
    Abstract: There are disclosed gels composed of hydrated phyllosilicates combined with a lattice expanding agent selected from the group consisting of a primary aminocarboxy acid, lysine orotate, and glycylglycine. Both organic and inorganic additions, as well as ion exchange products, are disclosed. The gels, with or without the additions, may be polymerized and may be formed or shaped. Also disclosed are methods for generating the gels and for treating the gels generated.
    Type: Grant
    Filed: April 10, 1987
    Date of Patent: October 11, 1988
    Assignee: Corning Glass Works
    Inventor: Hermann L. Rittler