摘要:
A magnetic head which includes a core, a coil wound on the core, terminals to which ends of the coil are connected. The magnetic head also includes a substrate on which mounted are a demodulating electronic component for demodulating an analog output signal output from the terminals to create a digital demodulated signal, and an encrypting electronic component for encrypting the demodulated signal to create an encrypted signal. A cable electrically connects the demodulating electronic component and the terminals. A case body stores the core, the coil, the terminals, and the cable. The demodulating electronic component is mounted on one side of the substrate, and the encrypting electronic component is mounted on the other side of the substrate. The substrate is fixed to the case body so that the demodulating electronic component is placed inside the case body while the encrypting electronic component is placed outside the case body.
摘要:
A semiconductor product is constructed of a wiring substrate in which pads for pin connection are formed, and a substrate with pins in which pins are disposed. The substrate with the pins is formed so that one end of the pin is exposed to one surface of a resin substrate formed by resin molding and the other end of the pin extends from the other surface of the resin substrate and one end of the pin is bonded to a pad of the wiring substrate through a conductive material.
摘要:
A second-order modified block copolymer which can be obtained by reacting a first-order modified block copolymer with a second-order modifier, wherein the first-order modified block copolymer comprises a base block copolymer and a functional group-containing first-order modifier group bonded to the base block copolymer, wherein the base block copolymer comprises at least one polymer block comprised mainly of vinyl aromatic hydrocarbon monomer units and at least one polymer block comprised mainly of conjugated diene monomer units, and wherein the second-order modifier has a specific functional group which is reactive to the functional group of the first-order modifier group of the first-order modified block copolymer. A second-order modified block copolymer-containing polymer composition comprising the second-order modified block copolymer as well as a thermoplastic resin and/or a rubbery polymer.
摘要:
A first-order modified, hydrogenated polymer comprising (1) a hydrogenated polymer obtained by hydrogenating at least one unhydrogenated polymer selected from the group consisting of a polymer comprising conjugated diene monomer units and a copolymer comprising conjugated diene monomer units and vinyl aromatic hydrocarbon monomer units, and (2) a functional group-containing first-order modifier group bonded to the hydrogenated polymer (1), wherein the content of the vinyl aromatic hydrocarbon monomer units, vinyl aromatic hydrocarbon block ratio, weight average molecular weight, and hydrogenation ratio (as measured with respect to the double bonds in the conjugated diene monomer units) of the first-order modified, hydrogenated polymer are, respectively, within specific ranges. A second-order modified polymer obtained by reacting a second-order modifier with a first-order modified polymer comprising (β) a base polymer and (γ) a functional group-containing first-order modifier group bonded to the base polymer (β). A composition comprising the above-mentioned first-order modified, hydrogenated polymer or second-order modified polymer and at least one functional component other than the modified polymer.
摘要:
A second order modified block copolymer which can be obtained by reacting a first order modified block copolymer with a second order modifier, wherein the first order modified block copolymer comprises a base block copolymer and a functional group-containing first order modifier group bonded to the base block co-polymer, wherein the base block copolymer comprises at least one polymer block comprised mainly of vinyl aromatic hydrocarbon monomer units and at least one polymer block comprised mainly of conjugated diene monomer units, and wherein the second order modifier has a specific functional group which is reactive to the functional group of the first order modifier group of the first order modified block copolymer. A second order modified block copolymer containing polymer composition comprising the second order modified block copolymer as well as a thermoplastic resin and/or a rubbery polymer.
摘要:
Disclosed is a hydrogenated copolymer obtained by hydrogenating an unhydrogenated copolymer comprising conjugated diene monomer units and vinyl aromatic monomer units, the unhydrogenated copolymer having at least one polymer block (H) of vinyl aromatic monomer units, wherein the hydrogenated copolymer has the following characteristics (1) to (5): (1) a content of the vinyl aromatic monomer units of from more than 60% by weight to less than 90% by weight, based on the weight of the hydrogenated copolymer; (2) a content of the polymer block (H) of from 1 to 40% by weight, based on the weight of the unhydrogenated copolymer; (3) a weight average molecular weight of from more than 100,000 to 1,000,000; (4) a hydrogenation ratio of 85% or more, as measured with respect to the double bonds in the conjugated diene monomer units; and (5) substantially no crystallization peak observed at −50 to 100° C. in a differential scanning calorimetry (DSC) chart obtained with respect to the hydrogenated copolymer.
摘要:
An electrophoresis pattern reading system of fluorescent type is comprised of a detachable migration unit comprising a gel functioning as a base for electrophoresis and a gel-supporting body for supporting the gel; an electrophoresis unit, to which the migration unit is mounted, for performing electrophoresis by applying migrating voltage to the gel to which a sample labeled with a fluorescent substance is added; and a reading unit including an instrumentation subunit for reading an electrophoresis pattern, to which the migration unit is mounted after electrophoresis and which receives fluorescence emitted from the fluorescent substance of the sample on the gel upon application of light to the gel. For example, a plurality of the migration units and the electrophoresis units are provided, and each of the plural migration units are mounted to one reading unit in order after electrophoresis has been performed with the respective electrophoresis units for a long period of time, thereby reading the electrophoresis pattern in a short period of time.
摘要:
A thermoelectric material is provided which consists of an oxide with a perovskite structure, wherein the oxide is of the formula (Ln.sub.1-x A.sub.x).sub.2 MO.sub.4 with 0.01.ltoreq.x.ltoreq.0.05, where Ln is a rare earth element, A is an alkali earth metal element, and M is a transition metal element. The thermoelectric material is particularly useful for Peltier cooling elements to produce low temperatures below room temperature.
摘要:
A method for the manufacture of a pyrolytic graphite with high crystallinity comprising the deposition of graphite directly onto a crystalline catalytic substrate by thermal decomposition of a carbon-containing material at a temperature of 1000.degree. C. or less, the pyrolytic graphite having interlayer spacing in a limited range and a c-axis orientation of carbon layers perpendicular to the surface of the substrate. An electrode with graphite as an active material and a crystalline metal electrode substrate as a current collector unified, the graphite being pyrolytic graphite that is deposited on the crystalline metal electrode substrate with catalytic properties so as to cover the crystalline metal electrode substrate by the above-mentioned method.
摘要:
There is disclosed a secondary battery wherein either one of positive electrode and negative electrode elements is made of an active material, the color of which is changed according to a voltage between these electrodes and wherein= a window is formed for observing the color change of the electrode.Further, an electrochromic display device is disclosed in which a working electrode is made of a pyrolytic carbonaceous material which is obtained by thermal decomposition of a hydrocarbon compound at a low temperature of about 1,000.degree. C.