摘要:
A triple-layer electrode structure or a multilayer interconnecting structure of a semiconductor device comprising a contact (a lower conductive) layer of aluminum or its alloy which comes into contact with a silicon substrate, a barrier layer of refractory metal nitride (e.g. titanium nitride) and refractory metal (e.g., tungsten), and a (upper) conductive layer of aluminum or its alloy. The TiN-W barrier layer prevents overdissolution of silicon into aluminum in spite of heat-treatment at a relatively elevated temperature. The barrier layer is formed by sintering a mixture of refractory metal nitride powder and refractory metal powder to form a target which is sputter deposited on the contact layer in an atomsphere excluding gaseous nitrogen.
摘要:
The disclosed permanent magnet has a coercive force of larger than 500 Oe, a residual magnetic flux density of larger than 5 kG, and a maximum energy product of larger than 2 MGOe, and it consisting essentially of 48.about.66.9 Atm % of iron, 33.about.47 Atm % of platinum, and 0.1.about.10 Atm % of niobium. It includes a crystal structure of an incomplete single .gamma..sub.1 phase of a face-centered tetragonal system due to either the composition thereof or heat treatment applied thereto. The permanent magnet is made by heating an alloy of the above main composition at 900.degree..about.400.degree. for one minute to ten hours and quenching the alloy at a high speed of faster than 30.degree. C./minute but slower than 2,000.degree. C./sec.
摘要:
A process for preparing the optically active oxazolidinone derivative [(S)-I] by utilizing microorganisms or enzymes having a stereoselective esterase activity capable of asymmetrically hydrolyzing the racemates of the acyloxyoxazolidinone derivative [(R,S)-II], by separating the unreacted compound [(S)-II] from the hydrolyzed compound [(R)-I] and by hydrolyzing the compound [(S)-II]. The compounds are useful as intermediates for preparing optically active .beta.-adrenergic blocking agents.
摘要:
The disclosed permanent magnet consists of an iron-palladium alloy consisting of 25 to 40 atomic % of palladium, and the remainder of iron with less than 0.5 atomic % of impurities or an iron-palladium-silver alloy consisting of 19.5 atomic % of palladium, 0.1 to 27.5 atomic % of silver and the remainder of iron with less than 0.5 atomic % of impurities and having a crystalline structure with fine dispersion of .alpha.+.gamma..sub.1 phase in a matrix, so that the permanent magnet has a coercive force of higher than 500 Oe, a residual magnetic flux density of larger than 6 kG, and a maximum energy product of larger than 2 MG.Oe. The disclosed method of producing the aforementioned permanent magnet comprises steps of homogenizing solid solution treatment at a temperature depending on the specific alloy composition, cooling, and tempering at a suitable temperature so as to generate the aforementioned crystalline structure.
摘要:
A process is disclosed in which an optically active monoalkyl ester of .beta.-(S)-aminoglutaric acid is prepared by subjecting a dialkyl ester of .beta.-protected aminoglutaric acid to the action of a culture broth, cells, or treated cells of a microorganism capable of stereoselectively hydrolyzing only one of the ester groups in the above-mentioned dialkyl ester to produce an optically active monoalkyl ester of .beta.-protected (S)-aminoglutaric acid, and then removing the amino-protecting group from the product. An optically active monoalkyl ester of .beta.-(S)-aminoglutaric acid is useful as a starting material for synthesizing .beta.-lactam antibiotics of carbapenem type such as thienamycin.
摘要:
A finisher 100 includes a pair of bundle discharge rollers 130, a lower stack tray 137, and a width-direction aligning portion 200. The width-direction aligning portion includes a pair of aligning members 1 and a driving motor. The aligning member includes a pair of first aligning members 91 that is rotatably supported while being movable in the sheet width direction orthogonal to the discharge direction and a pair of second aligning members 92. The driving motor rotates the pair of first aligning members and moves the pair of first aligning members in the width direction. When the pair of first aligning members rotates and one of the pair of second aligning members abuts on the sheet, the pair of second aligning members forms opposite surfaces in which the sheet can be aligned in the width direction, and the pair of first aligning members align the sheet by the opposite surfaces.
摘要:
A sheet cutting apparatus having a movable blade which lowers toward a sheet from above to cut the sheet; and a pushing member which lowers together with the movable blade to push a cut piece of the sheet cut by the movable blade. The pushing member has a plurality of pushing surfaces which are arranged along the tip of the movable blade at a distance from each other, and the plurality of pushing surfaces are in contact with the movable blade and are located upstream from a tip of the movable blade in a moving direction of the movable blade cutting the sheet.
摘要:
A folded spine of a booklet held by a pair of opposing holding members is deformed by entering a pressing member into a gap between the pair of holding members and bringing the pressing member into pressure contact with the folded spine. In consequence, the folded spine is prevented from receiving an excessive pressing force, and a smooth surface with a width substantially equal to the thickness of the booklet is thus formed on the folded spine, whereby a booklet with a good appearance can be made.
摘要:
A folded spine of a booklet held by a pair of opposing holding members is deformed by entering a pressing member into a gap between the pair of holding members and bringing the pressing member into pressure contact with the folded spine. In consequence, the folded spine is prevented from receiving an excessive pressing force, and a smooth surface with a width substantially equal to the thickness of the booklet is thus formed on the folded spine, whereby a booklet with a good appearance can be made.
摘要:
A sheet skew-correcting device includes a sheet-conveying rotation body for conveying a sheet, a skew-correcting member that contacts an end of the sheet conveyed by the sheet-conveying rotation body for correcting skew of the sheet, and a driving unit for moving the skew-correcting member. The skew-correcting member moved in a sheet-conveying direction by the driving unit contacts the end of the sheet conveyed in the sheet-conveying direction by the sheet-conveying rotation body, so as to correct the skew of the sheet.