摘要:
The present invention provides a method for manufacturing a magnetic recording medium comprising the steps of forming a carbon protective film onto a disc, the non-magnetic substrate of which is layered with a non-magnetic base film and magnetic film, using a reactant gas containing carbon atoms as a starting material, according to a plasma CVD method, wherein a mixed gas of hydrocarbon and hydrogen, in which the mixing ratio of hydrocarbon to hydrogen is in the range of 2 to 1˜1 to 100 by volume, is used as a reactant gas, during bias applying to said disc. In addition, the present invention provides a magnetic recording medium comprising a carbon protective film formed onto a disc, the non-magnetic substrate of which is layered with a non-magnetic base film and magnetic film, wherein said carbon protective film is formed according to a plasma CVD method, while applying bias.
摘要:
A method for fabricating a carrier tape having a row of pockets, including forming carrier tape sections by injection molding so that each of the carrier tape sections has at least one pocket for accommodating an article therein, and joining the carrier tape sections in the form of a tape. The first carrier tape section is first injection molded, and the second carrier tape section is then injection molded such that one side of the first carrier tape section is in contact with one side of the second carrier tape section. A further carrier tape section is then injection molded such that one side of the second carrier tape section is in contact with a side of the further carrier tape section, whereby the carrier tape sections are successively joined together.
摘要:
There is provided (i) a resin additive able to impart superior thermal shock resistance even in the case of resins that have absorbed moisture, (ii) a curable resin composition capable of forming a cured resin that has superior thermal shock resistance even after absorbing moisture, and (iii) a cured resin that has superior thermal shock resistance even after absorbing moisture. The resin additive consists of a powder with a mean particle size of 0.1 to 100 &mgr;m of silicone rubber. It has a moisture absorption rate of 0.20 weight percent or less after being treated for 20 hours at a temperature of about 121° C., a pressure of two atmospheres, and a relative humidity of 100 percent. The curable resin composition contains the resin additive, and the cured resin is formed by curing the curable resin composition.
摘要:
A composition suitable for slush molding is disclosed. The composition comprises a thermoplastic polyurethane elastomer (A) having a number average molecular weight of 10,000 to 50,000, a glass transition point of not higher than −35° C. and a heat softening initiation temperature of 100 to 160° C.; a plasticizer (B); a blocked polyisocyanate (C); a pigment (D); and a blocking inhibitor (E) comprising a resin powder which is not heat-softened even at 160° C. and has an average particle diameter of not more than 10 &mgr;m. The composition has a wide mold temperature range, and provides a molded article excellent in properties at low temperature, anti-fogging, thermal aging resistance and light aging resistance.
摘要:
A ferromagnetic tunnel-junction magnetic sensor includes a first ferromagnetic layer, an insulation barrier layer formed on the first ferromagnetic layer and including therein a tunnel oxide film, and a second ferromagnetic layer formed on the insulation barrier layer, wherein the insulation barrier layer includes a metal layer carrying the tunnel oxide film thereon such that the tunnel oxide film is formed of an oxide of a metal element constituting the metal layer, and wherein the insulation barrier layer has a thickness of about 1.7 nm or less but larger than 1 molecular layer in terms of the oxide forming the tunnel oxide film.
摘要:
According to the present invention, a cooling apparatus using boiling and condensing refrigerant, includes a fluid separating plate for separating a high-temperature fluid from a low-temperature fluid, a refrigerant tank disposed on the side of the high-temperature fluid from the fluid separating plate, a refrigerant sealed into the refrigerant tank, a pair of communication pipes, one end of which is communicated with the refrigerant tank hermetically, a condensing portion communicated with the other end of the communication pipes and disposed on the side of the low-temperature fluid from the fluid separating plate, and a heat insulating material as a high-temperature portion-side heat insulating material coated on the outer periphery of the high-temperature-side communication pipe. In this way, it is possible to suppress a heat conduction from a high-temperature portion (high-temperature air) to the high-temperature-side communication pipe. As a result, it is possible to prevent the descending refrigerant which has been condensed and liquefied in the radiator from receiving heat from the high-temperature portion through the high-temperature-side communication pipe to receive an ascending force in the high-temperature-side communication pipe.
摘要:
In a cooling apparatus, a radiating part mounted on a refrigerant tank is made by stacking refrigerant tubes and fins alternately. A first header and a second header are provided at the ends of the refrigerant tubes. When the cooling apparatus is used in a vertical attitude, the first header is positioned above the liquid surface of refrigerant inside the refrigerant tank, and the second header is positioned below the liquid surface. Consequently, vapor refrigerant boiled by heat from a heat-emitting body attached to the refrigerant tank can flow through the first header into the refrigerant tubes, and liquid refrigerant liquefied in the refrigerant tubes can flow through the second header back to the refrigerant tank.
摘要:
A ferromagnetic tunnel-junction magnetic sensor includes a first ferromagnetic layer, an insulation barrier layer formed on the first ferromagnetic layer and including therein a tunnel oxide film, and a second ferromagnetic layer formed on the insulation barrier layer, wherein the insulation barrier layer includes a metal layer carrying the tunnel oxide film thereon such that the tunnel oxide film is formed of an oxide of a metal element constituting the metal layer, and wherein the insulation barrier layer has a thickness of about 1.7 nm or less but larger than 1 molecular layer in terms of the oxide forming the tunnel oxide film.
摘要:
The magnetic sensor comprise a multi-layer structure 10 including a ferromagnetic layer 12 of FeCo alloy, an insulation layer 14 of Al.sub.2 O.sub.3 and a compound semiconductor layer 16 of GaAs. Circularly polarized light is irradiated to the compound semiconductor layer 16 to generate electrons. A dc voltage is applied to the ferromagnetic layer 12 and the compound semiconductor layer 16 by a dc power source 20 while circularly polarized light is irradiated to the compound semiconductor layer 16. When a direction of an external magnetic field changes, a magnetization direction of the ferromagnetic layer 12 accordingly changes, and a magnetoresistance between the ferromagnetic layer 12 and the compound semiconductor layer 16 changes. Changes of the magnetoresistance are measured by a voltmeter 22.
摘要翻译:磁传感器包括多层结构10,其包括FeCo合金的铁磁层12,Al 2 O 3的绝缘层14和GaAs的化合物半导体层16。 圆偏振光被照射到化合物半导体层16以产生电子。 直流电压通过直流电源20施加到铁磁层12和化合物半导体层16,同时向化合物半导体层16照射圆偏振光。当外部磁场的方向改变时,磁化方向 铁磁层12相应地变化,并且铁磁层12与化合物半导体层16之间的磁阻发生变化。 通过电压表22测量磁阻的变化。
摘要:
The present invention relates to a magnetoresistive head having a spin valve MR film for use in a magnetic sensor, a magnetic head or the like. Of two ferromagnetic layers divided by a nonmagnetic metal film, at least ferromagnetic layer on the side being in contact with an antiferromagnetic layer is formed by a cobalt-nickel-iron alloy including at the rate of 5 to 40 atoms % of a nickel and 30 to 95 atoms % of cobalt.