Abstract: In order to provide an X-ray coating thickness gauge capable of simultaneously measuring plating thickness and copper concentration of a tin alloy plating layer including ten percent or less copper by weight on a material constituted by one or more layers including copper, the copper concentration of a tin alloy plating layer is determined using the intensity of peaks caused by diffracted X-rays in acquired X-ray spectra information.

Abstract: An ultrafine copper alloy wire drawn to a diameter of not more than 0.08 mm is provided which is formed of an alloy having a copper matrix of high purity copper with a total unavoidable impurity content of not more than 10 mass ppm. Contained in the matrix is 0.05 to 0.9 mass % of at least one metallic element selected from the group including tin, indium, silver, antimony, magnesium, aluminum, and boron. By virtue of this constitution, the ultrafine copper alloy wire has excellent tensile strength, electrical conductivity, and drawability.

Abstract: This invention provides a composite conductor having excellent strength, flexing resistance and corrosion resistance, a production method thereof and a cable employing the same composite conductor. A corrosion resistant layer is formed of Au, Ag, Sn, Ni, solder, Zn, Pd, Sn—Ni alloy, Ni—Co alloy, Ni—P alloy, Ni—Co—P alloy, Cu—Zn alloy, Sn—Bi alloy, Sn—Ag—cu alloy, Sn—Cu alloy or Sn—Zn alloy in the thickness of 0.5 &mgr;m or more on an external periphery of a core made of copper-metal fiber conductor. A wire material made of the copper-metal fiber conductor is subjected to area reduction processing. In the middle of the area reduction processing or after the area reduction processing is completed, corrosion resistant layer is formed on the periphery of the wire material in the thickness of 0.

Abstract: A copolymerized polyester resin composition comprising the following polyethylene terephthalate resin (A) and a polybutylene terephthalate resin (B), wherein the proportion of the resin (A) is from 50 to 95 wt %, and the proportion of the resin (B) is from 5 to 50 wt %, based on the total amount of the resins (A) and (B):

Abstract: A portable X-ray fluorescence analyzer has a measurement head section and an operating section. An X-ray source is disposed in the measurement head section for irradiating X-rays onto a sample for analysis of the sample utilizing principles of X-ray fluorescence. A power source is disposed in the operating section for supplying a voltage to the X-ray source to irradiate X-rays. A control circuit controls the power source to supply a voltage to the X-ray source through a first X-ray switch disposed in the measurement head section and a second X-ray switch disposed in the operating section by ON/OFF control of the first and second X-ray switches. A safety switch is disposed in the measurement head section for interlocking the first and second X-ray switches so that the control circuit controls the power source to supply a voltage to the X-ray source to irradiate X-rays only when the safety switch and the first and second X-ray switches are switched to an ON state.

Abstract: A demodulation circuit for CDMA mobile communications systems prevents the degradation of reception qualities by selecting and assigning variation-free, stable paths out of received paths.

Abstract: It is an object of the invention to provide an electrode wire for an electrical discharge machining apparatus, which is low-priced in cost of production, has sufficient conductivity and strength at high temperature and is suited for improving the speed of electrical discharge machining. Cu—Zn alloy covering layer is formed around a core metallic wire formed of Cu—0.02 to 0.2 Zr alloy or Cu—0.15 to 0.25 Sn—0.15 to 0.25 In alloy.

Abstract: It is an object of the invention to provide an electrode wire for an electrical discharge machining apparatus, which is low-priced in cost of production, has sufficient conductivity and strength at high temperature and is suited for improving the speed of electrical discharge machining. Cu—Zn alloy covering layer is formed around a core metallic wire formed of Cu-0.02 to 0.2 Zr alloy or Cu-0.15 to 0.25 Sn-0.15 to 0.25 In alloy.

Abstract: The present invention sets out to provide X-ray fluorescence analysis apparatus having an easily detached protective sheath having a structure where conduction is provided between a core and a shield when the high-voltage connector is open. A pipe-shaped sheath having threading corresponding to a fixing screw connecting to a shield of the high-voltage connector is provided, and a conductor touching with the core is provided at the other end of the sheath. When the sheath is then fitted to the high-voltage connector, the core of the high-voltage connector and the shield conduct.

Abstract: In order to provide an extremely safe portable X-ray fluorescence analyzer, in a portable X-ray fluorescence analyzer based on a X-ray fluorescence method and comprising a measurement head and an operation section, X-rays are only generated if an X-ray switch and safety switch attached to the measurement head, and an X-ray switch attached to the operation section, are on at the same time. Also, if the safety switch provided on the measurement head is turned off to stop X-rays, even if the safety switch is turned on again, X-rays are not generated until both the X-ray switches are momentarily turned off.

Abstract: The present invention sets out to provide X-ray fluorescence analysis apparatus having a safely detachable mechanism where a high-voltage cable cannot be removed during application of a high-voltage. A cover with a channel through which a cable passes is provided at an opening of a housing for connecting a high-voltage cable. A mechanism for detecting open and closed states of this cover and cutting off a high-voltage is then provided.

Abstract: Good receiving characteristics are achieved by receiving a path immediately after the path appears.

Abstract: The object of the present invention is to provide an open chamber-type X-ray fluorescence analysis apparatus capable of qualitatively and quantitatively analyzing light elements within a sample in a stable manner.

Abstract: To provide a CDMA demodulation circuit and a CDMA demodulation method capable of maintaining good receiving characteristics even in a mobile communication environment. A fading pitch estimation portion estimates a time at which a level of a received input signal drops due to fading by monitoring fluctuation in the level provided by a rake combining portion. Before the level drops, a finger path assignment control portion controls assignment of path timing to a fingers portion performed by a finger path assignment portion.

Abstract: An improved X-ray analyzer may be made portable and provide accurate positioning capabilities to permit precise location on a sample of a measurement point. An imaging device is provided to allow the user to observe a position at which primary X-rays generated by an X-ray source are to be irradiated onto the sample, and a display device is provided for displaying an image thereof. The display device displays a fluorescent X-ray spectrum taken at a measurement point on the sample in accordance with an output of an X-ray detector at the same time as displaying the sample image.

Abstract: The invention relates to a method for manufacturing an electrode wire for an electrical discharge machining apparatus, which is composed of a core wire formed of Cu or Cu-alloy and a covering layer formed of brass. A brass tape is longitudinally applied around a core wire to provide a pipe, a seam formed by butting longitudinal edges of the brass tape is continuously welded to provide a composite wire, area-reduction process of reduction rate less than 65% is applied to the brass pipe by means of a squeezing die, a heat treatment at a temperature higher a recrystallization one of brass is applied to the composite pipe, and thereafter the composite wire is processed to be reduced in area through plural reducing dies step by step.

Abstract: An optical pickup comprises a plurality of light sources for generating recording and reproducing light of information, a plurality of optical elements for treating light beam generated from the light sources, light detecting means for detecting light beam in a optical path to adjust various characteristics of the light beam, and a recording medium, wherein resolution or resolving power in recording time and in reproducing time is adjusted to match to each other.

Abstract: The present invention relates to a multilayer polyester sheet comprising:a base layer comprising a thermoplastic polyester resin (A) having a glass transition temperature of not less than 80.degree. C., anda sealing layer comprising a thermoplastic polyester resin (B) having a glass transition temperature at least 5.degree. C. lower than that of the base layer and laminated on at least one side of the base layer,said multilayer polyester sheet being a substantially non-stretched transparent sheet.

Abstract: This invention relates to a biphenylmethane derivative represented by the formula (1): ##STR1## wherein A represents a group ##STR2## in which R.sup.1, X, Y, Z and B are as defined in the Specification. The compounds have potent angiotensin II antagonist activity and anti-hypertensive effect. They have therapeutic utility for circulatory diseases such as hypertension, heart diseases and cerebral apoplexy.

Abstract: The present invention provides dihydropyridine derivatives represented by the following formula (I) ##STR1## and salts thereof. They have extremely strong, slow and long-acting vasodilating action and antihypertensive action with less adverse effects so that they are useful as therapeutic agents for cardiovascular diseases.