摘要:
A four-row cylindrical roller bearing is incorporated into between the inner peripheral surface of a housing and the outer peripheral surface of a backup roller. A sensor unit 7 is held in a portion of a collar disposed in the axial-direction end portion of the four-row cylindrical roller bearing. The sensor unit comprises a detect part for detecting temperatures and vibrations and a transmitter device for transmitting signals, which are obtained after output signals taken out from the detect part are processed, as radio signals. On a portion of a hold cover which is a separate member from the collar, there is disposed a receive antenna which is part of a receiver apparatus for receiving the radio signals transmitted by the transmitter device.
摘要:
An object of the invention is to achieve a small and thin irregular pattern reader comprising: a prism possessing a detection surface on which a subject to be detected having an irregular pattern is put and an incident plane having a first angle of inclination to the detection surface and emitting a light reflected on the detection surface corresponding to an incident light incident upon the incident plane; a first optical system possessing a light source and causing a light from the light source to be incident upon the incident plane of the prism with its optical axis substantially in parallel to the detection surface; and a second optical system for transmitting the emission light emitted from the prism to an image pick-up device.
摘要:
A sense amplifier has a pair of internal nodes that are precharged to a power-supply level. A first pair of n-channel transistors supplies current to the internal nodes responsive to a pair of data signals, both of which are initially high. When one of the data signals begins falling toward the low level, the corresponding n-channel transistor immediately reduces the current supplied to one of the internal nodes. A second pair of n-channel transistors, cross-coupled to the internal nodes, amplifies the resulting potential difference between the internal nodes, thereby pulling down the potential of one of the internal nodes. An output signal is generated from one or both of the internal nodes. The output signal is obtained quickly, because amplification begins without delay.
摘要:
A wiring board for a semiconductor package comprises a base substrate having first and second surfaces; a wiring layer consisting of necessary wiring patterns formed on at least one of the first and second surfaces; a plurality of semiconductor element mounting areas formed on the surface of the base substrate on which the wiring layer is formed; and individual patterns as position information provided for the respective semiconductor element mounting areas, the individual patterns having a particular shape for the respective semiconductor element mounting area. The individual patterns as position information are formed on peripheral regions of the respective semiconductor element mounting areas.
摘要:
In a heat transfer pipe, annular grooves in a direction inclined at an angle of 45° to 90° with respect to an axis of the pipe are continuously formed at an interval in a longitudinal direction of the pipe. The annular grooves desirably have a groove depth of 0.20 mm or more, and a groove pitch of two to five times larger than the groove depth. Moreover, a ratio W/P of a bottom width W of projections of the grooves to the groove pitch P is desirably 0.1 to 0.9.
摘要:
The laser heat treatment of an amorphous or polycrystalline silicon film material is conducted by forming a laser beam generated from a pulse laser source having a wavelength of 350 nm to 800 nm into a linear beam having a width and a length, and directing the linear beam onto a film material formed on a substrate.
摘要:
An optical system that controls laser beam spot profile for forming a high performance thin film by a laser heat treatment process is provided. In the optical system that irradiates a rectangular laser beam on a film formed on a substrate, intensity distribution forming, apparatus makes the intensity distribution uniform in the longitudinal direction while maintaining the properties of the laser beam 2 such as directivity in the direction of shorter side, making it possible to concentrate the light to a limit permitted by the nature of the laser beam and achieve the maximum intensity gradient on the film disposed on the substrate. Thus a steep temperature distribution can be generated on the film disposed on the substrate and, as a result, high performance thin film can be formed.
摘要:
Circumferential grooves 6c and 6d are respectively formed in the outer peripheral surface 6a and inner peripheral surface 6b of a floating ring 6, and the circumferential groove 6d is used to form a lubricant feed portion 8 in a clearance 7 between the outer peripheral surface 1a of an inner race 1 and itself, while the circumferential groove 6c is used to form another lubricant feed portion 8 in another clearance 7 between the inner peripheral surface 5b of a cage 5 and itself, thereby being able to improve lubricating conditions between the two respective partner portions.
摘要:
A process for selectively producing an (S)-9-fluoro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-2,3 -dihydro-7H-pyrido[1,2,3-de][1,4]benzoxazine-6-carboxylic acid hemihydrate or monohydrate as depicted below, which comprises controlling the water content of an aqueous solvent in which an (S)-9-fluoro-3-methyl-10-(4-methyl-1-piperazin -yl)-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de][1,4]benzoxazine-6-carboxylic acid is dissolved during a crystallization. ##STR1##
摘要:
A piezoelectric on-off value for air conditioning comprises a bendable metal plate fixed at one end thereof; a valve member mounted on the other end of the metal plate along a ceiling plate, the value member having vent holes corresponding to vent holes in the ceiling plate, and the valve member changing the relative closure of the vent holes when the metal plate is deformed by application of voltage to the piezoelectric ceramic.