Abstract: A compound of the formula ##STR1## is a novel immunosuppressant agent prepared by fermenting Steptomyces braeaensis subsp. pulcherrimus, ATCC 55150, or another compound of the formula I producing strain and extracting the compound of the formula I from the fermentation medium. The compound is useful in treating transplant rejection and autoimmune diseases.

Abstract: A copper film coated substrate includes a substrate and a copper film formed on a surface of the substrate. The copper film has an X-ray diffraction intensity of 2.0 cps per unit film thickness at a crystal orientation (111) face of the copper film. A crystal orientation of a copper thin film is controlled by irradiating a surface of a substrate with inert gas ions before forming a copper thin film on the substrate by a physical vapor deposition process. A copper thin film is formed by irradiating a surface of a substrate with ions, and depositing a copper thin film on the irradiated substrate. In the ion irradiating step, an ion irradiation energy for a dosage of the irradiated ions is controlled, so that crystal is greatly grown to be orientated in a direction of copper (111) face with a less dosage of the irradiated ions.

Abstract: An antibiotic compound of the formula: ##STR1## is an antiparasitic agent active against insect pests, acari, free living nematodes and endo- and ectoparasites. It is prepared by fermentation using the microorganism Streptomyces griseochromogenes ATCC 53928.

Abstract: An optical fiber composite overhead ground wire in which a plurality of optical fibers are wound together on a tension member to form an optical unit. A plurality of such optical units are disposed in a spacer around which ground wires are wound. The optical fibers within a unit are identified by color and possibly winding order. Each tension member is also identified from other tension members so each optical fiber can be uniquely identified.

Abstract: N-demethylefrotomycin, a valuable new antibiotic substance, is produced by the microbial conversion of mocimycin using a novel, efrotomycin-producing, microbial species ATCC 53758.

Abstract: N-Demethylefrotomycin, a valuable new antibiotic substance, is produced by the microbial conversion of mocimycin using a novel, efrotomycin-producing, microbial species ATCC 53758.

Abstract: Black sintered bodies of aluminum nitride are produced by adding a sintering aid selected from the group consisting of (a) an oxide mixture of calcium oxide and at least one of tungsten oxide and molybdenum oxide, (b) an oxide containing calcium and at least one of tungsten and molybdenum and (c) a mixture of compounds capable of being converted into said oxide mixture (a) or said oxide (b) by sintering to aluminum nitride so that the resulting composition consists essentially of 0.1 to 20 wt. % in the total amount (calculated as oxides of Ca, W and Mo) of the sintering aid and balance aluminum nitride, molding the composition and sintering the molded composition at relatively low temperature. The black sintered bodies thus obtained are especially useful as materials for insulating substrate, heat sink and packaging for semiconductor device due to their high density, good thermal conductivity and superior light-shielding ability.

Abstract: Sintered bodies of aluminum nitride are produced by adding, as a sintering aid, an oxide mixture consisting essentially of calcium oxide, yttrium oxide and one or more oxides of tungsten oxide and molybdenum oxide or a mixture of compounds (precursors) capable of being converted into said oxide mixture by firing to aluminum nitride as a main component in such proportions that total amounts of the sintering aid is in the range 0.1 to 20% by weight (calculated as oxides of CaO, Y.sub.2 O.sub.3, WO.sub.3 and MoO.sub.3) based on the sum of the weight as the oxide forms of the sintering aid and aluminum nitride, molding the resulting composition and sintering the molded composition. The composition can be sintered at relatively low temperature. The black sintered bodies thus obtained are especially useful as materials for insulating substrate, heat sink, packaging for semiconductor device, etc. due to their high density and good thermal conductivity.

Abstract: A process and apparatus for the production of laminated sheath cables having improved close contact between a laminated tape layer and the core of the cable. The tape is longitudinally wrapped around the cable with portions of the tape overlapping. The assembly is then heated and passed through a set of pressing rollers disposed at a single pressing position. The rollers are at least three in number. The arc length of each roller is determined by dividing the total outer circumference of the assembled tape and cable core by the number of rollers.