Abstract: A water-soluble substrate, and more particularly a water-soluble substrate that improves resistance to dissolution at neutral pH, and methods of making the same are disclosed. Articles, such as pouches, made from the water-soluble substrate, are also disclosed herein.
Abstract: The present invention is characterized in that a base material is coated with a ceramic thin film comprising a composite phase composed of a first phase mainly formed of a silicon ceramic component and a second phase mainly formed of a ceramic component other than the silicon ceramic component of the first phase, in which the amount of fine crystal particles of at least one ceramic component that constitutes the second phase slopingly increases toward a surface layer. According to the present invention, there are provided a ceramic thin film coating material having a slope constitution, which not only has an excellent function such as a photocatalyst function, an electrical function, a thermal catalyst function or a catalyst-supporting function or environment resistance such as oxidation resistance, alkaline resistance or wear resistance but also has excellent dynamic properties, and a process for the production thereof.
Abstract: A magnetic recording medium in which a recording layer is formed in a predetermined concavo-convex pattern and recording and reproducing apparatus comprising the magnetic recording medium are disclosed. The magnetic recording medium has a high areal density and high reliability since the occurrence of a crash of a magnetic head is suppressed. The magnetic recording medium comprises a recording layer formed over a substrate in a predetermined concavo-convex pattern to form recording elements as a convex portion of the concavo-convex pattern and a non-magnetic filler element filled in a concave portion between the recording elements. In this configuration, the top surface of the filler element is formed in a shape partially recessed toward the substrate side to form a groove having a width smaller than the width of the concave portion on the surface of the magnetic recording medium.
Abstract: A member is obtained by forming a Y2O3 black spray coating on a surface of a substrate or covering the surface of the substrate with a Y2O3 black spray coating through an undercoat or a middle layer. This coating has good heat characteristics and is good in the resistance to damaging through a high hardness. The Y2O3 black spray coating is produced by subjecting white Y2O3 powdery material to a plasma spraying in an inert gas atmosphere containing substantially no oxygen or by forming a Y2O3 white spray coating and then irradiating an electron beam or a laser beam to this coating to melt at least a part of the white coating under heating to thereby smoothen denseness and blacken the surface of the coating.
Abstract: A magnetic recording medium comprising: a magnetic layer; a first radiation curable resin layer; a non-magnetic support having an intrinsic viscosity of from 0.47 to 0.51 dL/g; and a second radiation curable resin layer, in this order, wherein the first radiation curable resin layer contains a filler, and the second radiation curable resin layer contains a filler.
Abstract: A uniform silicon carbide single crystal with either an n-type or a p-type conductivity. The crystal has a net carrier concentration less than 1015 cm?3 and a carrier lifetime of at least 50 ns at room temperature.
August 22, 2003
Date of Patent:
January 27, 2009
Norstel AB, SiCED Electronics Development GmbH & Co. KG
Alexandre Ellison, Björn Magnusson, Asko Vehanen, Dietrich Stephani, Heinz Mitlehner, Peter Friedrichs
Abstract: Provided is a surface-treated substrate in which the roughness of the surface of the substrate is controlled. The surface-treated substrate can form a magnetic recording medium in which head flying stability is maintained and which has a magnetic film that can achieve high recording densities. Also provided is a method for roughening the surface of the substrate. More specifically, provided is a surface-treated silicon substrate for a magnetic recording medium in which a surface used for forming a recording layer has 40 to 1000 protrusions per 1 ?m2 with a maximum height of 10 nm or less and an average roughness of 0.3 to 2.0 nm, and in which there are no defects or spots on any of the surface. Furthermore, provided is a method for manufacturing the surface-treated silicon substrate for the magnetic recording medium, comprising a step of etching a surface of a silicon substrate, wherein ultrasound is applied to the surface of the silicon substrate with the substrate shaken or rotated.
Abstract: A magnetic tape medium having superior dimensional stability in the width direction and off-track resistance is provided although having a very high track width in the width direction. As a non-magnetic substrate of a magnetic tape medium in which the track density in the width direction is 50 tracks/mm or more, the off-track margin is 5 ?m or less, and the maximum permissible amount of change in dimension in the width direction caused by environment factors is 0.10% or less, a laminate composed of a plastic film and films provided on two surfaces thereof is used, the films being formed of a material selected from the group including a metal, a semi-metal, an alloy, and an oxide or composite formed of the aforementioned material, having a Young's modulus of 7×103 kg/mm2 or more and a coefficient of thermal expansion of 18×10?6/° C. or less.
Abstract: A glass substrate for a magnetic recording medium is formed to have a disc shape and includes ridge shaped textures 13 extending along concentric circles on a main surface. When measuring a 10 ?m square range with an atomic force microscope, the textures have a width W that is between 10 and 200 nm. The textures have a height H that is between 2 and 10 nm. Further, the textures have a ratio (Rp/RMs) of a maximum mountain height with respect to a root mean square roughness that is less than or equal to 15. The textures include high frequency components superimposed on the low frequency components. It is preferable that the textures of the high frequency components have a width W? that is between 0.1 and 20 nm, and the textures of the high frequency components have a height H? that is between 0.1 and 1 nm.
October 22, 2003
Date of Patent:
December 30, 2008
Norimasa Ishii, Kazuishi Mitani, Yasuhiro Saito, Koji Okuhata
Abstract: An anisotropic conductive sheet interposed between a circuit board such as a substrate and various circuit parts to render them conductive and its manufacturing method. The anisotropic conductive sheet has a fine pitch required by the recent highly integrated circuit boards and electronic parts. In the anisotropic conductive sheet in which conductive members are scattered in a nonconductive matrix, the conductive members (e.g., 24) penetrate through the sheet (10) in the direction of thickness and conductive auxiliary layers (e.g., 25) are in contact with the conductive members (e.g., 24).
Abstract: A substrate for an information recording medium, which substrate is made of a highly heat-resistant and low-alkali-elution glass and is suitable as a substrate for forming a perpendicular-magnetic-recording-mode layers thereon at a high temperature with a sputtering machine, the substrate being made of an alkali-metal-oxide-containing glass having a glass transition temperature (Tg) of 620° C. or higher and satisfying a requirement that the alkali ion elution amount per a unit area when the glass is immersed in water having a temperature of 80° C. for 24 hours is 0.2 ?mol/cm2 or less, an information recording medium having an information recording layer formed on the substrate, and a process for producing the information recording medium.
Abstract: A method of transporting precision equipment materials without absorption of thermal energy through the heat sensitive material or device such as flat panel displays. The transfer member has a carbon fiber reinforced composite material body with a layer of metal film on the top and bottom surfaces of the transfer member that provides a reflective surface. Flat panel displays, for example, release radiant thermal energy that is absorbed by the carbon fiber reinforced composite which is detrimental to the flat panel display. The reflective surface created by the metal film prevents the energy absorption by the carbon fiber reinforced composite. A glass fiber and epoxy layer on the metal film surface protects the metal film.
December 2, 2002
Date of Patent:
December 2, 2008
E.I. du Pont de Nemours and Company, Nippon Oil Corporation
Chris L. Miller, Daisuke Uchida, Takashi Kobayashi, Kenichi Aoyagi, Shinichi Takemura
Abstract: The invention relates to a granulated raw material for refractory graphite-containing products in the form of shaped granules, with the granules each comprising a coarse resistor particle which is enveloped by a shell comprising graphite flocs and cured binder, in particular a carbon-containing binder. In addition, the invention relates to a process for producing the granulated resistor material and to the use of the granulated raw material.
Abstract: A method of producing a porous plastic film, and a porous plastic film. The plastic film is prepared from a raw material blend comprising a polymer-containing basic material and an additive. Pores are generated in the film by stretching a film preform. The additive comprises a POS(S) chemical.
November 4, 2004
Date of Patent:
November 18, 2008
Valtion Teknillinen Tutkimuskeskus
Mikko Karttunen, Satu Kortet, Mika Paajanen
Abstract: A leader tape where an non-magnetic under layer that contains a powder and a binder and a magnetic upper layer are sequentially laminated on at least one face of a support, in which F5 values of the support in a machine direction (MD) and in a transverse direction (TD) are from 80 to 120 MPa respectively, the F5 value in MD is larger than that in TD, and a difference between the F5 value in MD and that in TD is 15 MPa or less.
Abstract: The invention relates to a method for manufacturing a roll coating onto a roll frame (1), which coating comprises a base layer (2) on the roll frame (1) and a surface layer (3) on the base layer (2). The base layer (2) is brought to its final form after the surface layer (3) has been formed and cured or solidified. The surface layer (3) is formed on the base layer (2) and cured or solidified after the base layer (2) has been formed on the roll frame (1).
Abstract: Disclosed is a cellulose ester film containing cellulose ester and microparticles having an average primary particle diameter of from 0.1 to 1.0 ?m, wherein a relative standard deviation of a primary particle diameter of the microparticles is from 1 to 20%, and wherein the cellulose ester film has a surface with a peak density of from 1,000 to 8,000 (1/mm2).
Abstract: A heat treatment was carried out in a pressurized condition on an amorphous metal ribbon containing Fe and Co as main components and being represented by the general formula: (Co(1?c)Fec)100?a?bXaYb. (In the formula, X represents at least one species of element selected from Si, B, C and Ge, Y represents at least one species of element selected from Zr, Nb, Ti, Hf, Ta, W, Cr, Mo, V, Ni, P, Al, Pt, Rh, Ru, Sn, Sb, Cu, Mn and rare earth elements, c, a and b satisfy 0?c?1.0, 10<a?35 and 0?b?30, respectively, and a and b are represented in terms of atomic %.) By carrying out a heat treatment in a pressurized condition in the same manner on a magnetic substrate comprising an amorphous metal ribbon and a heat resistant resin or a laminate of the substrates, not only the magnetic properties but also the mechanical properties and the processability are improved.
Abstract: An egg replacer composition is provided that has a low cholesterol content and that can be used for preparing bakery products. It includes, calculated on dry matter, 35-85 wt % protein, 10-50 wt % vegetable oil, 0.5-5 wt % stearoyl lactylate, 0.5-15 wt % carbohydrate and optionally vegetable lecithin in an amount, expressed as phosphatides, not exceeding 3 wt %. The cholesterol content is less than 0.5 wt %. The protein includes soy protein and egg white protein, at least half of the protein being soy protein. The PDI is at least 60%.
Abstract: A magnetic recording medium is composed of a nonmagnetic support provided with on one side of the support a magnetic layer containing a ferromagnetic powder and a binder, and a backing layer on the other side of the nonmagnetic support, wherein the nonmagnetic support is a polyester film having an intrinsic viscosity of from 0.40 to 0.60 dl/g, and contains fillers having filler diameters of from 10 to 500 nm at a filler density of from 1/100 to 50/100 ?m2.