PURPOSE:To obtain a composite Nb3Sn superconductor having excellent characteristics in a method for forming a composite body consisting of Nb-base and tin-contg. copper-base alloys then treating under heating the same by adding Ta to the Nb-base alloy and Ti, Ga and Al to the copper-base alloy. CONSTITUTION:An Nb-base alloy contg. 0.1-20atom% Ta in Nb is used and an Nb-base alloy body and a copper...

The invention relates to the determination and recording of the programme of the path, around a contour (1), of a machine having a carriage (6) which can move in two orthogonal directions X and Y. According to the invention, with the aid of an angle indicator (24) fixed on a sensing head (8), the variation over time in the angular position of the contour (1) is measured, and the analog or digital ...

PURPOSE:To enable the address computing unit with high efficiency and enabling short time calculation, which enables a complicated transfer of data with simple instruction words and the high speed processing with the hardware, by utilizing the operation modulo.

PURPOSE:To enhance the reliability of a resin-package type semiconductor device in which a vitrification occurs by covering at least a vitrification film on the surface of a semiconductor element with heat resistant resin layer made of polyimide resin or the like. CONSTITUTION:A tab 8 is fixed through a solder 6 on an insulating substrate which is fixed through solder on a heat sink. A package 13 ...

PURPOSE:To completely shield an alpha-ray energy by thinly forming by a spinner coating method an alpha-ray shielding material on the surface of a semiconductor element and fixing an alpha-ray shielding sheet through a heat resistant adhesive. CONSTITUTION:An alpha-ray shielding material is thinly formed as an alpha-ray shielding film by a spinner coating method on the surface of a wafer in wafer...

A driving mechanism for a bicycle, for example, using a conventional chain drive comprises an arcuate body 1 pivoted for oscillating movement on a base 8 connected to the bicycle frame. A foot rest 5 is attached or integral with the body. A connecting rod 6 connects one end of the arcuate body to the crank 9 of a chain wheel 10 of the bicycle to convert oscillatory motion of the body into rotation...

PURPOSE:To constitute a ball-circulating path free of discontinuous point by carving a circulation path on the cut surface of the patch which is divided into two pieces at the position agreeing with the center line of both return holes, and fixing these two divided patches joined together, onto a nut. CONSTITUTION:The cut piece of a nut 4 is used as patch 4', and this patch 4' is divided into two ...

PURPOSE:To obtain a speaker device which can considerably improve the reproduction of low frequency sound, by forming a speaker cabinet having a large compliance. CONSTITUTION:In sealing a solution representing a negative shift in accordance with the Raoult's low in an enclosed cabinet to realize the coexistence of gas and liquid two phases and in keeping the pressure in the cabinet to 1atm., the ...