摘要:
The present invention relates to a ferromagnetic tunnel magnetoresistance effect element having a multilayered structure comprising a tunnel barrier layer and a first and a second ferromagnetic layer formed to sandwich the tunnel barrier layer therebetween, wherein the tunnel barrier layer is formed as an oxide film obtained by oxidizing a non-magnetic metal layer according to a radical oxidation method. Thus, there can be obtained a ferromagnetic tunnel magnetoresistance effect element which is excellent in productivity and quality stability and highly excellent in TMR effect.
摘要:
In a spin valve type magnetoresistance effect film, an antiferromagnetic layer is made of MxMn100−x wherein M represents at least one selected from Ru, Rh, Re, Pt, Pd, Au, Ag, Fe, Ni, Ir and Cr, and 15≦x≦58 (unit of x: atomic %), and a protective layer formed thereon is made of at least one selected from Rh, Ru, Zr and Ti. With this arrangement, a magnetoresistance effect film highly excellent in thermal stability and small in deterioration of the MR ratio, as well as a magnetoresistance effect type head having such a magnetoresistance effect film can be obtained.
摘要翻译:在自旋阀型磁阻效应膜中,反铁磁层由MxMn100-x制成,其中M表示选自Ru,Rh,Re,Pt,Pd,Au,Ag,Fe,Ni,Ir和Cr中的至少一种, <= x <= 58(x:原子%),其上形成的保护层由选自Rh,Ru,Zr和Ti中的至少一种制成。 通过这种布置,可以获得热稳定性优异且MR比率劣化小的磁阻效应膜以及具有这种磁阻效应膜的磁阻效应型头。
摘要:
In a magnetoresistance multilayer film comprising at least two magnetic layers on a substrate, with a nonmagnetic layer intervening between the magnetic layers, each interface between the magnetic layer and the nonmagnetic layer is corrugated in both X and Y directions of a substrate major surface. The corrugations of the interface are formed by providing the substrate surface with a multiplicity of asperities distributed in both X and Y directions and depositing magnetic layers and nonmagnetic layers thereon. The film shows a linear rise of MR change in an applied magnetic field within a very low range of 0 to about 40 Oe.
摘要:
In a first aspect, a carburetor fuel adjusting device that facilitates control of the quantity of fuel that flows from the fuel chamber to an air intake port of a carburetor by making it possible for the user to adjust an adjustment valve within the limits defined by emission control regulations. The carburetor fuel adjusting device has a cap having two appendages, and an engagement area to engage a valve extension of the fuel adjustment valves of a carburetor. The cap is retained by the retainer in either a disengaged position, or an engaged position wherein the engagement area of the cap becomes attached to the valve extensions. In the engaged position, the adjustment valves can be turned in unison with the cap within a range formed by the angle between the appendages which, when rotated, abut against stoppers. In a second aspect, a retaining plate of elastic material having two retainer holes adapted to receive and retain the pair of adjustment valves in a prescribed adjustment position is laid against an outer surface of the carburetor body. The adjustment valves each have a base-end portion and a small diameter portion, the threads of the base-end portion having an external diameter larger than that of the threads of the small diameter portion. The external diameter of the threads of the base-end portion is also larger than the diameter of each of the retainer holes of the retaining plate such that when the adjustment valve is screwed into the screw hole of the carburetor, the base-end portion cuts threads in the retainer holes of the retaining plate to thereby prevent rotation of the adjustment valve.
摘要:
A valve opening mechanism for a rotary throttle valve type carburetor having a lever which transmits the accelerator operation to the throttle valve. The lever and throttle valve are turned while the throttle valve is simultaneously caused to move in the central axial direction from the idle position by a cam part. This movement slightly increases the degree of overlap between a throttle orifice in the throttle valve and an air intake passage in the carburetor body, and slightly reduces the depth of insertion of a metering needle into the fuel nozzle. As a result, the amount of air and fuel is increased to an amount necessary for low-temperature starting. In operation, the cam part engages with the lever and is fixed in the operative position. Then, the lever is released by the normal operation of the accelerator, and is returned to the inoperative position by a return spring.
摘要:
A magnetic multilayer film having magnetoresistance (MR) is prepared by alternately depositing first and second magnetic layers while interposing a non-magnetic metal layer therebetween. The number of the first magnetic layers N1 and the number of the second magnetic layers N2 having greater coercivity than the first magnetic layers are in the range: 2.ltoreq.N1.ltoreq.4 and N2=N1-1. The first magnetic layer has a thickness t1 of 10-80 .ANG., second magnetic layer has a thickness t2 of 20-90 .ANG., and non-magnetic metal layer has a thickness t3 of 20-90 .ANG.. The magnetic multilayer film comprising a less number of layers has a great MR ratio, a linear rise of an MR curve in proximity to zero magnetic field, and high sensitivity to a magnetic field. It also has a greater MR slope upon application of a high frequency magnetic field in proximity to zero magnetic field and withstands high temperatures. The magnetic multilayer film is used as a magneto-sensitive section to provide high performance MR devices.
摘要:
Digital operational circuitry includes a first adder/subtractor for adding a first pathmetric to a first branchmetric to develop a first value of pathmetric, and a second adder/subtractor for subtracting the first branchmetric from a second pathmetric to develop a second value of pathmetric. The addition and subtraction are performed by the first and second adder/subrtactors complementarily to each other. The first and second values of pathmetric are compared in likelihood to each other, and in response to the results from the comparison, either of the first and second values of pathmetric is selected and stored in a storage. The circuitry also includes a third adder/subtractor for adding the pathmetric read out from the storage to a second branchmetric to develop a third value of pathmetric, and a fourth adder/subtractor for subtracting the second branchmetric from the pathmetric read out from the storage to develop a fourth value of pathmetric. The third and fourth values of pathmetric are compared in likelihood, and in response to the comparison results either of the third and fourth values of pathmetric is developed as a pathmetric.
摘要:
A pipe joint comprising a pressing nut into which a flexible pipe is inserted, a joint body into which the pressing nut is partially inserted, a resilient means unlocked when pushed by a tip end of the flexible pipe, a sealing member, a retainer engaging the flexible pipe, and an engaging mechanism keeping the pressing nut at a predetermined position in the joint body; the engaging mechanism comprising a stop ring, an annular groove formed on an outer surface of the pressing nut for receiving the stop ring, pluralities of engaging grooves formed on an inner surface of the joint body for receiving the stop ring and communicating with each other; the stop ring engaging both of the annular groove and the first engaging groove before the connection of the flexible pipe is completed; and when the flexible pipe is pulled after completing the connection, the stop ring moving from the first engaging groove to the second engaging groove to draw the pressing nut from the joint body, so that the normal connection of the flexible pipe can be confirmed.
摘要:
Structures and methods for fabrication servo and data heads of tape modules are provided. The servo head may have two shield layers spaced apart by a plurality of gap layers and a sensor. Similarly, the data head may have two shield layers spaced apart by a plurality of gap layers and a sensor. The distance between the shield layers of the servo head may be greater than the distance between the shield layers of the data head. The material of the gap layers may include tantalum or an alloy of nickel and chromium. The material for the gap layers permits deposition of gap layers with sufficiently small surface roughness to prevent distortion of the tape module and increase the stability of the tape module operation.
摘要:
A method of fabricating a bias structure of a magnetoresistive read head for a magnetoresistive sensor stack formed on a substrate includes forming an underlayer and forming a bias layer over the underlayer. The method further includes forming a dusting layer directly below at least one of the underlayer or the bias layer and between the bias layer and the magnetoresistive sensor stack. The dusting layer includes discontinuous, nano-sized islands.