Abstract: Providing porous implant material having a strength property approximate to human bone, without arising stress shielding, and which is possible to maintain sufficient bound strength with human bone. Porous implant material has a porous metal body having a three-dimensional network structure formed from a continuous skeleton 2 in which a plurality of pores 3 are interconnected, wherein a porosity rate is 50% to 92%, the pores 3 are formed to have flat shapes which are long along a front surface and short along a direction orthogonal to the front surface, lengths Y of the pores 3 along the front surface are 1.2 times to 5 times of a length X orthogonal to the front surface, and a compressive strength compressing in the direction parallel to the front surface is 1.4 times to 5 times of a compressive strength compressing in the direction orthogonal to the front surface.

Abstract: This method for producing porous sintered aluminum includes: mixing aluminum powder with a sintering aid powder containing titanium to obtain a raw aluminum mixed powder; mixing the raw aluminum mixed powder with a water-soluble resin binder, water, and a plasticizer containing at least one selected from polyhydric alcohols, ethers, and esters to obtain a viscous composition; drying the viscous composition in a state where air bubbles are mixed therein to obtain a formed object prior to sintering; and heating the formed object prior to sintering in a non-oxidizing atmosphere, wherein when a temperature at which the raw aluminum mixed powder starts to melt is expressed as Tm (° C.), a temperature T (° C.) of the heating fulfills Tm?10 (° C.)?T?685 (° C.).

Abstract: This method for producing porous sintered aluminum includes: mixing aluminum powder with a sintering aid powder containing a sintering aid element to obtain a raw aluminum mixed powder; forming the raw aluminum mixed powder into a formed object prior to sintering having pores; and heating the formed object prior to sintering in a non-oxidizing atmosphere to produce porous sintered aluminum, wherein the sintering aid element is titanium, and when a temperature at which the raw aluminum mixed powder starts to melt is expressed as Tm (° C.), then a temperature T (° C.) of the heating fulfills Tm-10 (° C.)?T?685 (° C.).

Abstract: A mixed material having a high expansion rate for producing a porous metallic sintered body including: a conventional mixed material for producing a porous metallic sintered body which is formed of a mixture including a composition of 0.05 to 10% by mass of a non-water-soluble hydrocarbon-based organic solvent having 5 to 8 carbon atoms, 0.5 to 20% by mass of a water-soluble resin binder, and 5 to 80% by mass of a metal powder having an average particle size within a range of 0.5 to 500 ?m, and water as the balance; and a gas, wherein the mixed material contains the gas so that the proportion of the gas is within a range of 2 to 50% by volume while the remainder is the conventional mixed material for producing a porous metallic sintered body.

Abstract: A medical image filing system having a first recording device for recording a plurality of image data from a medical image pickup device; a second recording device for recording the plurality of image data from the medical image pickup device, the second recording device has a recording speed slower and a recording capacity greater than that of the first recording device; and at least one image reproducing device for reading and reproducing designated image data from the plurality of image data recorded in the first and second recording devices. The at least one image reproducing device has a third recording device for recording the designated image data, wherein the designated image data recorded in the third recording device can also be reproduced by the at least one reproducing device.

Abstract: A disk driving device which can be reduced in production cost and in overall thickness and can prevent a circuit board from being damaged upon ejection of a disk cartridge therefrom. The disk driving device comprises a spindle shaft mounted for rotation relative to a base by means of a metal bearing, a spindle fitted at an end of the spindle shaft remote from the base and having carried thereon a turntable for receiving a disk for integral rotation, a stator yoke secured to the base, and a buffer member mounted on a face of a driving magnet opposing to a circuit board mounted on the base. The driving magnet secured to the spindle for electromagnetically cooperating with a driving coil secured to the circuit board to rotate the spindle is located between the circuit board and the stator yoke.