Germanium Containing Patents (Class 501/42)
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Patent number: 4730896Abstract: A member capable of transmitting infrared rays of 2 .mu.m or longer in wavelength, particularly of 10.6 .mu.m in wavelength, with a slight loss is provided. The member comprises a Ge-Se-Te ternary chalcogenide glass having a composition which, in a compositional diagram of the ternary chalcogenide glass falls within the region bounded by the respective straight lines connecting points A, B, C, D, and E and A in this order, which points A, B, C, D, and E indicate Ge:Se:Te molar proportions of 32:25:43, 20:6:74, 15:5:80, 15:10:75, and 22:31:47, respectively.Type: GrantFiled: November 20, 1985Date of Patent: March 15, 1988Assignees: Hitachi, Ltd., Hitachi Cable Ltd.Inventors: Toshio Katsuyama, Hiroyoshi Matsumura
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Patent number: 4703019Abstract: The invention relates to a photosensitive and heat-sensitive glass which is composed of 25-70 mol % of Al.sub.2 O.sub.3 and/or Ga.sub.2 O.sub.3, 30-75 mol % of at least one of CaO, BaO, SrO and MgO and 0-40 mol % of an auxiliary component which is at least one of SiO.sub.2, GeO.sub.2, B.sub.2 O.sub.3 and P.sub.2 O.sub.5. The glass is produced by melting a batch mixture of powdery raw materials. By exposure to UV rays the glass colors in yellowish brown, and the color does not fade by termination of the exposure. Bleaching of the colored glass is accomplished by heating for a short time at about 150.degree.-300.degree. C. Coloration and bleaching can be repeated without deterioration. The same glass turns into an opaline foam glass, which presents a very attractive appearance, by heat treatment at a temperature above the softening temperature. This change is irreversible. The foams created in the glass matrix are usually tens of microns in diameter.Type: GrantFiled: May 9, 1986Date of Patent: October 27, 1987Assignee: Central Glass Company, LimitedInventors: Yoshihiro Abe, Hideo Hosono
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Patent number: 4575493Abstract: Compositions of metal oxides which may be melted and cooled to produce glasses are disclosed. The glasses may be heat treated to produce glass-ceramics. The glasses have good transmittances for electromagnetic radiation in the ultraviolet, infrared and visible spectra, while the glass-ceramics have good transmittances of infrared radiation. Other physical properties make these materials desirable for purposes such as radomes.Type: GrantFiled: March 16, 1982Date of Patent: March 11, 1986Assignee: General Electric Co.Inventor: Harry W. Rauch, Sr.
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Patent number: 4567151Abstract: A thick film conductor composition comprising an admixture of finely divided particles of noble metal and inorganic binder dispersed in organic medium in which the inorganic binder consists essentially of a bismuth silicate glass and/or bismuth germanate glass, ZnO and optionally Bi.sub.2 O.sub.3.Type: GrantFiled: January 14, 1985Date of Patent: January 28, 1986Assignee: E. I. Du Pont de Nemours and CompanyInventor: Barry E. Taylor
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Patent number: 4515898Abstract: An improved semiconductor die bonding structure and method for electrical devices is described which utilizes a ductile foil between the semiconductor die and the base of the device package. The die is sealed to the foil with a die bonding material formed from a titania free base glass to which has been added 23.6 to 36.4 weight percent lead titanate powder to give a glass plus ceramic mixture consisting essentially of (by weight percent) 2.5-10.7% GeO.sub.2, 0-2.3% SiO.sub.2, 58.6-78.5% PbO, 0-5.3% PbF.sub.2, 7-13% B.sub.2 O.sub.3, 2.5-6.9% Al.sub.2 O.sub.3, 0-5.3% ZnO, 0.4-2.3% V.sub.2 O.sub.5, 0-5.3% CdO, and 6.2-9.6% TiO.sub.2. The ductile foil is bonded to the ceramic package base directly without intermediate layers or alternatively by means of an improved foil bonding glass material consisting essentially of (by weight percent) 10-15% SiO.sub.2, 45-55% PbO, 8-12% ZnO, 2-5% Al.sub.2 O.sub.3, and 25-30% B.sub.2 O.sub.3.Type: GrantFiled: May 25, 1984Date of Patent: May 7, 1985Assignee: Motorola, Inc.Inventors: Earl K. Davis, James E. Drye, David J. Reed
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Patent number: 4513070Abstract: Electrochemical devices use a vitreous material having a general formulaxAaR.sub.b --yNmRc--zN.sub.n Y.sub.pwherein A is Si, Ge, P, S, B, Nb, As, V, Cr or Mo; R is O, S or Se; N is Li, Na, K or Ag and Y is I, Br, Cl, F, ClO.sub.4, CF.sub.3, SO.sub.3, SCN or SO.sub.4 with the proviso that the material contain at least two salts NY. Such materials have increased cationic conductivity.Type: GrantFiled: February 8, 1983Date of Patent: April 23, 1985Assignee: Centre National de la Recherche ScientifiqueInventors: Brigitte Carette, Ali Kone, Jean-Louis Souquet, Michel Ribes, Maurice Maurin
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Patent number: 4483931Abstract: This invention is directed to the preparation of glasses in the PbO--Ga.sub.2 O.sub.3 field exhibiting good infrared transmitting characteristics out to wavelengths of 8 microns. The binary glasses consist essentially, by weight, of about 15-28% Ga.sub.2 O.sub.3 and 72-85% PbO. However, the preferred glasses contain up to 85% Bi.sub.2 O.sub.3 and consist essentially as included within the area generally encompassed by the curve in FIG. 2.Type: GrantFiled: March 21, 1983Date of Patent: November 20, 1984Assignee: Corning Glass WorksInventors: William H. Dumbaugh, Jr., Brian P. Tyndell
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Patent number: 4477580Abstract: Optical components using a germania-silica glass are made by a gel technique. Tetra pentyloxygermane and a silicon alkoxide are hydrolyzed to form a gel, which is subsequently dried. Optical components, including optical fibers and devices, can be made using glass prepared by this technique.Type: GrantFiled: September 28, 1982Date of Patent: October 16, 1984Assignee: AT&T Bell LaboratoriesInventor: James W. Fleming, Jr.
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Patent number: 4456692Abstract: This invention is concerned with the production of glasses in the Bi.sub.2 O.sub.3 --Ga.sub.2 O.sub.3 system with, preferably, CdO which exhibit high indices of refraction and infrared transmitting capabilities to wavelengths of about 8 microns. The broadest scope of operable glasses involves, in weight percent, about______________________________________ Bi.sub.2 O.sub.3 40-90 Ga.sub.2 O.sub.3 5-30 CdO 0-35 ______________________________________with the preferred glasses consisting essentially of about ______________________________________ Bi.sub.2 O.sub.3 55-85 Ga.sub.2 O.sub.Type: GrantFiled: September 26, 1983Date of Patent: June 26, 1984Assignee: Corning Glass WorksInventors: William H. Dumbaugh, Jr., Brian P. Tyndell
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Patent number: 4455384Abstract: The chemical durability of alkali phosphate glasses is improved by incorporation of up to 23 weight percent of nitrogen. A typical phosphate glass contains: 10 to 60 mole % of Li.sub.2 O, Na.sub.2 O or K.sub.2 O; 5-40 mole % of BaO or CAO; 0-1 to 10 mole % of Al.sub.2 O.sub.3 ; and 40-70 mole % of P.sub.2 O.sub.5. Nitrides, such as AlN, are the favored additives.Type: GrantFiled: December 8, 1982Date of Patent: June 19, 1984Assignee: The United States of America as represented by the United States Department of EnergyInventors: Delbert E. Day, James A. Wilder, Jr.
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Patent number: 4392180Abstract: Thick film dielectric compositions suitable for screen-printing comprising a substituted perovskite, an inorganic dopant, and a low temperature-devitrifiable frit or glass. Upon firing the dielectric composition is highly hermetic.Type: GrantFiled: April 29, 1982Date of Patent: July 5, 1983Assignee: E. I. Du Pont de Nemours and CompanyInventor: Kumaran M. Nair
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Patent number: 4385128Abstract: This invention is directed to the production of glasses having a density of less than 3.26 g/cm.sup.3, a .beta..sub.OH value less than 0.030 mm.sup.-1, and, in a thickness of 2 mm, a transmission of at least about 80% at a wavelength of 4.0 microns and at least about 50% at a wavelength of 5 microns, which have base compositions within the alkali metal oxide-CaO-Al.sub.2 O.sub.3 -GeO.sub.2 -F and/or Cl field consisting essentially, expressed in terms of weight percent on the oxide basis, of______________________________________ GeO.sub.2 36-55 Al.sub.2 O.sub.3 18-31 CaO 10-25 Li.sub.2 O 0-5 K.sub.2 O and/or Na.sub.2 O and/or Li.sub.2 O 7-20 Al.sub.2 O.sub.3 + 1.5 (K.sub.2 O and/or Na.sub.2 O and/or Li.sub.2 .gtoreq.40 F and/or Cl 0.1-4.Type: GrantFiled: December 30, 1981Date of Patent: May 24, 1983Assignee: Corning Glass WorksInventors: Jean E. Boudot, Jean P. Mazeau
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Patent number: 4381945Abstract: Thick film conductor metallization comprising an admixture of finely divided particles of noble metal or alloy, low-melting, low viscosity glass, a spinel-forming metal oxide and an organo titanate.Type: GrantFiled: August 3, 1981Date of Patent: May 3, 1983Assignee: E. I. Du Pont de Nemours and CompanyInventor: Kumaran M. Nair
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Patent number: 4377840Abstract: Thick film dielectric compositions suitable for screen-printing comprising a perovskite, a bismuth-substituted pyrochlore, and a low temperature melting-devitrifiable glass. Upon firing the dielectric composition is highly hermetic.Type: GrantFiled: March 24, 1982Date of Patent: March 22, 1983Assignee: E. I. Du Pont de Nemours and CompanyInventor: Kumaran M. Nair
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Patent number: 4341542Abstract: A method of manufacturing glass for an optical transmission body includes the steps of precipitating an oxide of a glass forming element by the hydrolysis reaction of a halogen compound of the glass forming element in the liquid phase, adding phosphoric acid to the precipitate to produce a phosphate, removing the water from the phosphate and vitrifying the phosphate by heating.Type: GrantFiled: February 6, 1981Date of Patent: July 27, 1982Assignee: Fujitsu LimitedInventors: Osamu Nakamura, Takeshi Akamatsu, Junjiro Goto
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Patent number: 4314031Abstract: Glass compositions in the tin-phosphorus-oxyfluoride composition system exhibiting very low glass transition temperatures and capable of being modified by the addition of selected constituents to exhibit excellent stability in a humid environment, are described.Type: GrantFiled: June 17, 1980Date of Patent: February 2, 1982Assignee: Corning Glass WorksInventors: Leon M. Sanford, Paul A. Tick