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| Number | Title | Issue Date |
| 7934391 | Synthetic quartz glass body, process for producing the same, optical element, and optical apparatus The present invention is to provide a synthetic quartz glass body having a high light transmittance. The present invention provides a synthetic quartz glass body having pores in a surface part thereof. ... | 05/03/2011 |
| 7624594 | Magnetic recording medium substrate and manufacturing method therefor, magnetic recording medium, and magnetic recording and reproducing device The present invention is a magnetic recording medium substrate made of amorphous glass of B2O3—Al2O3—SiO2—Li2O type, wherein a chamfer is formed between an edge face at an outer circumference si... | 12/01/2009 |
| 7359607 | Waveguide for thermo optic device A waveguide and resonator are formed on a lower cladding of a thermo optic device, each having a formation height that is substantially equal. Thereafter, the formation height of the waveguide is attenuated. In this manner, the aspect ratio as between the waveguide ... | 04/15/2008 |
| 7341939 | Method for patterning micro features by using developable bottom anti-reflection coating In the manufacture of a semiconductor, a DBARC layer is deposited upon a wafer to prevent reflection. A photo resist layer is deposited upon the DBARC layer and the wafer is selectively exposed to irradiation. The irradiation generates photo acid (H+ ions) in the ex... | 03/11/2008 |
| 7294207 | Gas-admission element for CVD processes, and device The invention relates to a method for depositing especially, crystalline layers onto especially, crystalline substrates. At least two process gases are led into a process chamber of a reactor separately from each other, through a gas inlet mechanism above a heated s... | 11/13/2007 |
| 7285510 | Glass composition for poling and glass functional product containing the same The present invention provides a glass composition suitable for producing a poling effect. This glass composition includes 0.001 to 0.5 mol % of univalent metal ions in terms of oxide thereof, 0.1 to 40 mol % of Al2O3, and 0 to 15 mol % of B | 10/23/2007 |
| 7281394 | Method of manufacturing glass substrate and method of manufacturing information recording medium In a method of manufacturing a glass substrate for an information recording medium including a step for chemically strengthening the glass substrate by contacting the glass substrate with chemical strengthening processing liquid containing chemical strengthening sal... | 10/16/2007 |
| 7241559 | Lens array and method for fabricating the lens array A lens array and a method for fabricating the lens array are described herein. The lens array is made from a photosensitive glass plate containing a relatively small amount of a photosensitive agent (e.g., silver, gold or combination thereof) such that when the phot... | 07/10/2007 |
| 7230760 | Polarizers and isolators and methods of manufacture A passively aligned optical isolator includes laminated layers of material including two polarizing glass layers sandwiching a Faraday rotator layer. Each polarizing glass layer comprises a glass matrix containing elongated metal particles exhibiting a change in pol... | 06/12/2007 |
| 7197217 | Method of making a fiberoptic light guide A method of making a fiberoptic light guide utilizes a hollow glass cladding blackened by chemical reduction. The cladding has a predetermined lead content and is heated to an elevated temperature in an atmosphere of substantially 100% hydrogen gas in a furnace. The... | 03/27/2007 |
| 7174365 | System and method for controlling one or more multipoint control units as one multipoint control unit A video teleconferencing system for controlling multiple multipoint control units (MCU) from a single apparatus. The system utilizes a Virtual MCU (VMCU) (110) to communicate with a plurality of MCUs (135, 140, 145). A user initiates a reserve conferen... | 02/06/2007 |
| 7168268 | Method for the production of colored structures of a glass A method for the manufacture of colored structures of a glass, particularly for applying an inscription to the glass, by locally heating volume elements of the glass by means of a laser beam. The glass contains ions of metals which, in the form of submicroscopic par... | 01/30/2007 |
| 7157149 | Surface-modified glass-ceramics and their preparation The present invention relates to a product, comprising a body which is delimited by a surface, of a lithium aluminosilicate-based glass-ceramic, as well as to its method of preparation. Characteristically, said glass-ceramic has, on at least one part of said surface... | 01/02/2007 |
| 7110179 | Polarizers and isolators and methods of manufacture Polarizing glass articles, optical isolators including polarizing glass articles, and methods of manufacturing polarizing glass articles and optical isolators are disclosed. The methods manufacture can be used to manufacture isolators exhibiting improved contrast ra... | 09/19/2006 |
| 7108808 | Method for waste vitrification A waste vitrification apparatus (10) having rotatable mixer impeller (16) functioning as a shaft electrode (60) and metallic vessel (14) functioning as a vessel electrode (62). A stream (12) of waste material and vitrifiable... | 09/19/2006 |
| 7104090 | Method of making polarizing glasses Polarizing glass articles and methods of manufacturing polarizing glass articles are disclosed. The method involves forming a polarizing layer on the surface of the glass article by ion-exchanging silver or copper into the surface. ... | 09/12/2006 |
| 7095935 | Method for forming optical waveguide The present invention provides a method for forming an optical waveguide characterized by applying a paste containing a copper compound to a glass substrate containing an alkali metal as a glass component over the whole surface thereof or in a patterned form, and pe... | 08/22/2006 |
| 7068870 | Variable width waveguide for mode-matching and method for making A variable width waveguide useful for mode matching between dissimilar optical waveguides and optical fibers and a method for making the same is described. In one embodiment, a tapered waveguide is etched in a substrate, a cladding material is laid over the upper su... | 06/27/2006 |
| 7065281 | Optical systems incorporating waveguides and methods of manufacture Methods for forming optical systems are provided. A representative method includes the steps of: providing a substrate; depositing on the substrate a first contoured channel preform of material capable of ion exchange with the substrate; and diffusing ions from the ... | 06/20/2006 |
| 7029806 | Fiber array and methods for fabricating the fiber array A collimator array, a fiber array and a method for fabricating the fiber array are described herein. In one embodiment, that fiber array includes a plurality of optical fibers and a glass plate with a plurality of holes in each of which there is secured one of the o... | 04/18/2006 |
| 7022440 | Resist pattern defined by inwardly arched lines A device pattern of a semiconductor device. The pattern is defined by a plurality of non-straight lines that are inwardly arched and are formed from plural segments of plural ellipses that are arranged to surround the pattern. ... | 04/04/2006 |
| 6970494 | Rare-earth doped phosphate-glass lasers and associated methods Apparatus and method for integrating lasers and optics on glass substrates. An optical (e.g., laser) component formed from a glass substrate doped with a optically active lanthanides species with a plurality of waveguides defined by channels within the substrate. Th... | 11/29/2005 |
| 6947651 | Optical waveguides formed from nano air-gap inter-layer dielectric materials and methods of fabrication thereof Waveguides and methods of fabrication thereof are presented. A representative waveguide includes a waveguide core and a cladding layer, where the cladding layer surrounds the waveguide core. The waveguide core and cladding can be made of a host material having a plu... | 09/20/2005 |
| 6943125 | Method for manufacturing semiconductor device Provided is a method for manufacturing a semiconductor device including a plurality of different semiconductor elements with a transistor for fabricating the semiconductor device formed on a semiconductor substrate, an interlayer insulation film formed all over the ... | 09/13/2005 |
| 6922513 | Optical devices and methods of manufacture thereof An optical fiber has a core, an inner cladding and an outer cladding on. In a first region the inner cladding refractive index has a first value which differs from the core refractive index by about 0.0045. The inner cladding refractive index changes along said fibe... | 07/26/2005 |
| 6917474 | Lens array and method for fabricating the lens array A lens array and a method for fabricating a lens array that is relatively flat and has useful lenses with relatively uniform sag heights are described herein. In one embodiment, the lens array includes a one-dimensional array of useful lens and two sacrificial lens ... | 07/12/2005 |
| 6898365 | Articles useful as optical waveguides and method for manufacturing same A method for manufacturing an article capable of constraining a propagating wave is disclosed. The method includes contacting a crystalline substrate with a source of deuterium ions to create a region in the crystalline substrate having a crystal structure that incl... | 05/24/2005 |
| 6856746 | Titanium-indiffusion waveguides and methods of fabrication A method for fabricating titanium-indiffusion waveguides in optical modulators and other optical waveguide devices includes disposing titanium, strips in a waveguide pattern on the surface of a crystalline substrate, such as lithium niobate or lithium tantalate, and... | 02/15/2005 |
| 6845634 | Method for fabricating thallium-doped GRIN lens A fabrication method for a thallium-doped GRIN lens composed of a simplified glass composition is described. The composition is composed of silicon, oxygen, boron, zinc, potassium, sodium, and thallium. The method is comprised of preparing a cylindrical preform, ann... | 01/25/2005 |
| 6844669 | Glass funnel for a cathode ray tube and process for its production A glass funnel for a cathode ray tube, which has a substantially rectangular opened end at one end and a neck portion at the other end and which constitutes, together with a glass panel having a substantially rectangular face portion, a glass bulb to be used for a c... | 01/18/2005 |
| 6810688 | Method for treating glass substrates and glass substrates for the producing of display screens The subject of the invention is a process for treating a glass sheet which consists of a glass composition having a strain point above 540° C. and is intended for producing a display screen, the said process including at least one ion-exchange treatment on at least... | 11/02/2004 |
| 6772608 | Method for producing UV polarizers The invention relates to a method for producing UV polarizers, according to which spheroid particles situated near the surface of the glass are incorporated into the support material (primarily standard float glass) in a novel arrangement. According to the method fo... | 08/10/2004 |
| 6625368 | Titanium-indiffusion waveguides and methods of fabrication A method for fabricating titanium-indiffusion waveguides in optical modulators and other optical waveguide devices includes disposing titanium strips in a waveguide pattern on the surface of a crystalline substrate, such as lithium niobate or lithium tant... | 09/23/2003 |
| 6619073 | Method of increasing the initial transmittance of optical glass The invention relates to optical glass having improved initial transmittance, formed by subjecting the glass to a hydrogen and/or deuterium treatment at a temperature, and for a duration of time sufficient to diffuse the hydrogen and/or deuterium into the... | 09/16/2003 |
| 6598429 | Method for fabricating gradient-index rods and rod arrays A method for fabricating gradient-index rods and rod arrays. A central rod of optical glass having predetermined properties and predetermined outside dimensions is placed inside a tube of optical glass having predetermined properties and predetermined out... | 07/29/2003 |
| 6595029 | Process for devices for the production of internally-hardened glass tubes as well as their use The invention relates to a process for the production of internally-hardened glass tubes, in which in a tube-drawing process for the production of glass tubes that is known in the art, a coated drawing tool, for example in the process according to Danner ... | 07/22/2003 |
| 6595028 | Chemical reinforced glass substrate having desirable edge profile and method of manufacturing the same In a method of manufacturing a chemical reinforced glass substrate, consideration is previously made about a relationship between conditions of chemical reinforcement for a glass substrate and deformation caused by the chemical reinforcement at an edge po... | 07/22/2003 |
| 6523367 | Method of manufacturing glass substrate for use in information recording medium, and method of manufacturing information recording medium In a method of manufacturing a glass substrate for an information recording medium including a step for chemically strengthening the glass substrate by contacting the glass substrate with chemical strengthening processing liquid containing chemical streng... | 02/25/2003 |
| 6516634 | Strengthening, crack arrest and multiple cracking in brittle materials using residual stresses Embodiments include a method for forming a glass which displays visible cracking prior to failure when subjected to predetermined stress level that is greater than a predetermined minimum stress level and less than a failure stress level. The method inclu... | 02/11/2003 |
| 6511932 | Graded index lens A graded index lens is obtained by treating a raw glass material having a rod shape by ion exchange using silver to form a refractive index distribution in the radial direction of the rod, wherein the raw glass material comprises a glass composition of th... | 01/28/2003 |
