Abstract:
A screen type hollow filament microfilter made of a polyvinylidene fluoride type resin and having a layer structure of two kinds of layers with the support layer and the internal and external skin layers having an easily-controllable and wide average effective pore diameter of 0.05 to 1.0 .mu.m, characterized by having a high selectivity in permeation, a high permeability, a high porosity, an excellent mechanical strength and an excellent chemical resistance and an excellent inertness to living bodies. The microfilter, which has a number of excellent performances, can be produced by extruding a spinning solution comprising a polyvinylidene fluoride type resin, a solvent therefor and at least one kind of surfactant from an annular hollow filament spinning orifice and coagulating the extrudate by using coagulating liquids.
Abstract:
A specific porous membrane is found to be extremely useful for permeation-separation of an oil from an oil-containing emulsion. By contacting a stable oil-containing emulsion of either water-in-oil type or oil-in-water type with the surface of a specific porous membrane having at its surface a critical surface tension of less than 35 dynes/cm to not less than 20 dynes/cm and having an average pore diameter of 0.03 .mu.m to 5 .mu.m, a pore radius distribution of not more than 1.5 and a porosity of 1 to 85%, only the oil can be permeation-separated, without permeation of the liquid immiscible with the oil, with high selectivity and high oil permeation.
Abstract:
A semiconductor light emitting element comprises a semiconductor laminate including a p-type semiconductor layer, an active layer and an n-type semiconductor layer which are sequentially laminated; and a conductive support substrate joined to the p-type semiconductor layer side of the semiconductor laminate. The semiconductor laminate is divided into at least two semiconductor regions by a trench penetrating the p-type semiconductor layer, the active layer and the n-type semiconductor layer.
Abstract:
A semiconductor light emitting device comprises a semiconductor light emitting element comprising a semiconductor laminate including a p-type semiconductor layer, an active layer and an n-type semiconductor layer which are sequentially laminated, and a conductive support substrate joined to the p-type semiconductor layer side of the semiconductor laminate. The semiconductor laminate is divided into at least two semiconductor regions by a trench. The semiconductor light emitting device further comprises a first transparent sealing resin covering at least a portion of the semiconductor light emitting element, the first transparent sealing resin comprising a plurality of first fluorescent particles, each of the first fluorescent particles having an individual average particle diameter. A width of the trench is smaller than an overall average of the individual average particle diameters of the first fluorescent particles.
Abstract:
A gallium nitride-based III-V Group compound semiconductor device has a gallium nitride-based III-V Group compound semiconductor layer provided over a substrate, and an ohmic electrode provided in contact with the semiconductor layer. The ohmic electrode is formed of a metallic material, and has been annealed.
Abstract:
The present invention relates to a phase-change optical information recording medium comprising a recording layer which reversibly phase-changes between the crystalline phase and the amorphous phase by irradiation of a light having a recording wavelength of 390 to 430 nm, and a light transmittance thermally controllable layer showing a light transmittance varying according to temperature, in which the light transmittance increases at a rate of 0.2 to 0.7% /10° C.
Abstract:
An information reproducing apparatus is provided, which has a new cue point setting function with excellent operability for enabling new application form. Specifically, a cue point for specifying a start position for playing back a disc, and additional information or disc identification information corresponding to the cue point are stored in a backup memory. The additional information or the disc identification information is associated with the cue point and shown on a display according to a proper operation of operation buttons and a turning member. When the operation buttons and the turning member are properly operated, a system controller edits and adds the additional information, or edits the disc identification information in the backup memory. When the operation buttons and the turning member are properly operated to enter retrieval information, information stored in the backup memory is compared and retrieved, and the retrieved information associated with a cue point is shown on the display.
Abstract:
A signal processor comprises: a first buffer memory for outputting an image signal after storage; a second buffer memory for outputting an audio signal after storage; and a playback control section. The play back control section variably adjusts the playback progress speed of at least one of the image signal and the audio signal by individually controlling the output timings of the image signal and the audio signal from the first and second buffer memories in response to a given command.
Abstract:
A KiSS-1 peptide or a salt thereof can be produced in a large scale by subjecting a fusion protein or peptide in which a KiSS-1 peptide is ligated to the N-terminal of a protein or peptide having cysteine at the N-terminal, to the reaction of cleaving the peptide bond on the amino acid side of the cysteine residue.
Abstract:
A gallium nitride-based III-V Group compound semi-conductor device has a gallium nitride-based III-V Group compound semiconductor layer provided over a substrate, and an ohmic electrode provided in contact with the semiconductor layer. The ohmic electrode is formed of a metallic material, and has been annealed.