Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 8127570 | Optical glass A high-refractivity low-dispersion optical glass that can be stably supplied and has excellent glass stability and that has coloring reduced, comprises, by mass %, 5 to 32% of total of SiO2 and B2O3... | 03/06/2012 |
| 7644596 | Method of manufacturing a glass reflector A short-arc discharge lamp capable of reducing the likelihood of cracks starting at an end face of a reflection mirror neck unit. Such cracks can be caused by heat generated from the discharge lamp. The short-arc discharge lamp includes a glass reflection mirror hav... | 01/12/2010 |
| 7413832 | Method of producing a glass substrate for a mask blank, method of producing a mask blank, and method of producing a transfer mask In a method of producing a glass substrate for a mask blank, a surface of the glass substrate is polished by the use of a polishing liquid having a pH value between 7.0 and 7.6 that contains abrasive grains, and the abrasive grains include colloidal silica abrasive ... | 08/19/2008 |
| 7395679 | Method of manufacturing glass substrate for information recording medium Molten glass is press-molded by a metallic die in which a cylindrical body is provided in a vertically standing manner at a central part of a bottom surface of a bottomed hole and a molding surface corresponding to a chamfering shape of an outer peripheral edge surf... | 07/08/2008 |
| 7359809 | Electricity metering with a current transformer The data storage and processing resources required for an electric meter are reduced by basing the selection and application of phase error correction on a root mean square load current flowing through the meter. ... | 04/15/2008 |
| 7354526 | Processing method for glass substrate, processed glass product and stress applying apparatus A processing method for glass substrate of the present invention includes: applying heat and external force to a glass substrate and then cooling it down to thereby form a compression stressed part having a different etching rate from that of other parts with respec... | 04/08/2008 |
| 7310973 | Method and apparatus for making variegated glass sheets and tiles An apparatus is disclosed comprising a first color glass feeder having a first valve device, and a second color glass feeder having a second valve device, each connected by communications links to a controller. The controller controls the first valve device and seco... | 12/25/2007 |
| 7305854 | Methods for producing substrate blank A method for producing a thin-plate-shaped substrate blank that is an intermediate for a glass substrate, in which the occurrence of undulation is prevented and the substrate blank is produced with high accuracy, the method comprising press-molding a glass in a soft... | 12/11/2007 |
| 7304265 | Method and system for machining fragile material In a method for processing brittle material, a laser light from a laser light source irradiates the brittle material and transports an irradiating position of the laser light along a predetermined line, wherein the laser light L from a plurality of laser light sourc... | 12/04/2007 |
| 7287474 | Consumer pyrotechnics support apparatus A reusable pyrotechnics support device for securely holding consumer ground-based fireworks (for example, fountains, mortars, multiple aerials, and the like) in a vertical and upright position, using a sufficiently wide base that is resistant to tipping over. In cer... | 10/30/2007 |
| 7281809 | Open lattice mirror structure and method of making same A method of making a mirror structure includes assembling a supporting isogrid framework, assembling an isogrid back plane, interconnecting the supporting isogrid framework with the isogrid back plane by a truss core, and disposing an optical surface on the supporti... | 10/16/2007 |
| 7220690 | Glass ceramic having a low thermal expansion The present invention relates to a novel glass ceramic having a low or small average thermal expansion together with good polishability and processability, to the use of the glass ceramic according to the invention, and to optical components made of the glass cerami... | 05/22/2007 |
| 7220446 | Management technique of friction coefficient based on surface roughness, substrate for information recording medium, information recording medium and manufacture method thereof There are disclosed an information recording medium substrate having a surface roughness of Rmax 15 nm or less, and an information recording medium, particularly an information recording medium substrate and information recording medium in which for surfaces of the ... | 05/22/2007 |
| 7172344 | Optical filter module and manufacturing method thereof Precise V-grooves allowing an optical fiber to project are formed in respective main surfaces of an upper plane substrate and a lower plane substrate. The optical fiber is mounted on one plane substrate, and a multi-layer film filter 2 is inserted into a filt... | 02/06/2007 |
| 7152434 | Method for producing planar lens and planar lens array A glass substrate is irradiated with a converged laser beam to thereby form a spherical or nearly spherical convex portion on a surface of the glass substrate. More preferably, there may be used a method including the steps of: sticking a glass substrate to a flat m... | 12/26/2006 |
| 7145724 | Optical lens and semiconductor laser device The optical lens 1 in accordance with the present invention comprises an optically effective part 5, formed as a curved surface in at least one of light-entrance and light-exit faces, for acting in an X-axis direction on light emitted from a light-emit... | 12/05/2006 |
| 7145739 | Lightweight optical mirrors formed in single crystal substrate This invention is directed to a process for manufacturing a lightweight mirror from a single crystal material, such as single crystal silicon. As a near perfect single crystal material, single crystal silicon has much lower internal stress than a conventional materi... | 12/05/2006 |
| 7140203 | Method for manufacturing glass substrate of information recording medium Provided is a method for manufacturing a glass substrate for an information recording medium, which is advantageous in that oozing of an alkali and deformation of a texture are suppressed. The glass substrate is chemically reinforced, and a texture is formed in the ... | 11/28/2006 |
| 7128334 | Ultrasonic blade design for scoring double angle groove and products therefrom The present invention relates to the formation of a double angle V-groove in the backside of plastic shells to provide a preweakened section for a vehicle application. The double angle V-groove may be located at the airbag deployment opening of a vehicle. ... | 10/31/2006 |
| 7122242 | Wedge shaped glass and methods of forming wedged glass A glass sheet includes a first edge, an opposing, second edge, and an intermediate location between the first edge and second edge. The glass sheet has a first portion extending between the first edge and the intermediate location and a second portion extending betw... | 10/17/2006 |
| 7111799 | Narrow diameter needle having reduced inner diameter tip Tubular needles have a reduced inner diameter tip portion that increases back pressure behind the tip portion. This constricted tip portion promotes improved atomization, particularly when the liquid passes through the needle at near-supercritical conditions. A pref... | 09/26/2006 |
| 7107793 | Lithium-aluminosilicate glass ceramic with high keatite content and structural member made thereof A lithium-aluminosilicate glass ceramic is transformed by a suitable heat treatment into a glass ceramic comprising at least 80 vol.-% of keatite mixed crystals. This may be utilized for the preparation of optical or mechanical high-precision parts having a high tem... | 09/19/2006 |
| 7065984 | Substrate for information recording media and manufacturing method thereof, information recording medium, and starting material glass plate A substrate for use as a disk substrate in a hard disk drive or the like, an information recording medium such as a magnetic disk, and a starting material glass plate which is a starting material of the substrate for information recording media. The forming conditio... | 06/27/2006 |
| 7062941 | Manufacturing method of optical fiber preform A method for manufacturing an optical fiber preform that can produce an optical fiber having desired characteristics over the longer length thereof. A crude preform provided with a core region and a cladding region is prepared (Step S1), and at a plurality of... | 06/20/2006 |
| 7057313 | Cooling of voice coil motors A voice coil motor used, for example, in a positioning device associated with either a first object table or a second object table in which the coil is cooled with a cooling jacket in thermal contact with the coil, the cooling jacket comprising at least one channel ... | 06/06/2006 |
| 7043940 | Method for making thin fused glass articles A method suited for producing thin fused glass articles includes, in preferred aspects, preparing a dry gel having edges configured to reduce or eliminate warping of the gel during densification of the gel. Preferred aspects include partially densifying the gel, mac... | 05/16/2006 |
| 7040953 | Substrate for information recording media and manufacturing method thereof, and information recording medium There are provided a substrate for information recording media and a manufacturing method thereof, according to which the projection height of minute undulations formed on the substrate surfaces can be made more uniform, and variation in the projection density can b... | 05/09/2006 |
| 7015164 | Optical glass, glass material for press molding, optical element, and method of manufacturing same Disclosed is an optical glass comprising, expressed as weight percentages, greater than or equal to 18 percent and less than 30 percent of SiO2, greater than or equal to 12 percent and less than 23 percent of BaO, 22 to 37 percent TiO2, greater... | 03/21/2006 |
| 7013676 | Press molding apparatus In a press molding apparatus for press molding a plurality of glass materials into a plurality of glass optical elements by the use of a pressing mold including upper and lower molds each of which has a plurality of molding surfaces, at least one of the upper and th... | 03/21/2006 |
| 7010939 | Glass substrate for data recording medium and manufacturing method thereof In a first polishing step, or in a first half of a super precision polishing, a surface of a glass substrate is polished with a first suspension. The first suspension contains particles and a dispersion agent in which the particles are dispersed. The main ingredient... | 03/14/2006 |
| 7007512 | Method for machining glass substrate In the present invention, a surface 7 of a glass substrate 1 is irradiated with a laser beam 2 to thereby form a V-shaped groove 6. At that time, the laser beam 2 is condensed outside and above the glass substrate 1. The dis... | 03/07/2006 |
| 7008293 | Positioning jig, spray polishing device using positioning jig and spray polishing method A positioning jig which is applied to a spray polishing device which sprays a polishing liquid to a material to be polished and polishes the material to be polished, determines a relative position of a material to be polished and a polishing liquid spraying nozzle. | 03/07/2006 |
| 7001080 | End face polishing method An end face polishing method provides an end face polishing apparatus having a main body, a jig board mounted on the main body and supporting at least one workpiece, a polishing board mounted on the main body for undergoing rotational and revolving movements relativ... | 02/21/2006 |
| 6948341 | Cylindrical microlens with an internally reflecting surface and a method of fabrication A fast (high numerical aperture) cylindrical microlens, which includes an internally reflective surface, that functions to deviate the direction of the light that enters the lens from its original propagation direction is employed in optically conditioning laser dio... | 09/27/2005 |
| 6928837 | Silica glass substrates and their selection A silica glass substrate is obtained by polishing, cleaning, drying and etching a silica glass substrate slice. When the substrate on one surface is treated with a reactive reagent, defects having a size of at least 0.3 μm in a direction parallel to the substrate m... | 08/16/2005 |
| 6920765 | Combined advanced finishing and UV laser conditioning process for producing damage resistant optics A method for reducing the density of sites on the surface of fused silica optics that are prone to the initiation of laser-induced damage, resulting in optics which have far fewer catastrophic defects, and are better capable of resisting optical deterioration upon e... | 07/26/2005 |
| 6877343 | Method of manufacturing a glass substrate and a magnetic recording medium In a magnetic recording medium, surface roughness of a glass substrate and the variation of the surface roughness are suppressed to the predetermined range. Namely, the surface roughness (Rmax, Ra, Rq) and the relation (Rmax/Ra) between Rmax and Ra are restricted to... | 04/12/2005 |
| 6857290 | Method of applying barrier coatings to glass panels An index-matching coating is applied directly to a low-emissivity (“lowE”) thin-film coating. Nodules growing from a site in the lowE coating are removed to avoid propagation of defects through the layers of the index-matching coating. A tempering step in an oxy... | 02/22/2005 |
| 6854289 | Method of manufacturing glass gobs molded glass articles, and optical elements Methods and a device of manufacturing glass gobs with good productivity without defects in appearance from a glass melt. Glass gobs are manufactured from glass melt gobs by molding and cooling glass melt gobs in glass gob molding parts that are intermittently rotate... | 02/15/2005 |
| 6852010 | Substrate for an information recording medium, information recording medium using the substrate, and method of producing the substrate A substrate for an information recording medium has a microwaviness average height Ra′ not greater than 0.05 microinch as measured by a contactless laser interference technique for measurement points within a measurement region of 50 μm□-4 mm□ on a surface of... | 02/08/2005 |