摘要:
An optical fiber cutting apparatus comprises a coated section holder, an uncoated section holder, and a cutter. A ferromagnetic substance or a magnet is disposed on a surface of the uncoated section holder and a surface of the cutter holder which are facing each other. A ferromagnetic substance or a plurality of magnet having different magnetic force are disposed with equal interval on the uncoated section holder or the cutter holder. Tension is applied to the optical fiber by repulsing-force which exists among a magnet, a first magnet, and the second magnet. Tension which is applied to the optical fiber increases gradually. By doing this, an optical fiber cutting apparatus is provided which does not decrease strength of the optical fiber.
摘要:
A surface mount type antenna and a communication terminal using the same. A radiator electrode is provided on a first principal face of a substrate. A ground electrode is provided on the second principal face of the substrate. A first feeder electrode has at least a portion thereof provided on a side face and on the second principal face of the substrate. A second feeder electrode is provided on an inner wall face of a hole formed parallel to the first and second principal faces. The first feeder electrode and the ground electrode are kept in a non-contact state. The first feeder electrode and the second feeder electrode are in electrical contact. A mobile communication terminal using the surface-mount type antenna is small in size, exhibits small variations in characteristics, and provides high productivity and reliability.
摘要:
A magnetic recording medium comprising a substrate and a magnetic layer, wherein the magnetic layer is an Fe--N--O magnetic layer, and a distribution of N density in a depth direction of said Fe--N--O magnetic layer has a maximum value N1 in an intermediate layer section of said Fe--N--O magnetic layer, and the maximum value N1 ranges from 20 to 50 at. %, and an area where a density value is equal to or more than half of said maximum value N1 ranges from 100 to 500 .ANG. in a depth direction of said Fe--N--O magnetic layer. The magnetic recording medium has an excellent C/N.
摘要:
A metal film type magnetic recording medium in which the saturated magnetic flux density is high and iron having a good corrosion resistance is applied. The magnetic layer comprises metal films formed, in order on a base film, each containing iron, cobalt and nickel as main components.
摘要:
A surgical instrument for treatment in the body cavity, in which an open-close member for treatment is rockably mounted by of a pivot pin on the distal end portion of a sheath to be inserted into the body cavity, and is connected to the distal end of a rod passed through the sheath, by a cam mechanism including a cam groove and a cam pin in engagement therewith. As the rod is moved by an operating handle, the cam mechanism is activated to open and close the open-close member for treatment. The component members of the cam mechanism have external shapes such that those portions on the proximal end side of the position near the pivot pin do not project from the sheath in every operating state.
摘要:
The optical fiber cutting apparatus are constituted by a combination of a cutting apparatus body in which two clamps and, a scoring blade and a pushing member are provided on predetermined positions on a base and a set table having a guide groove on its top is provided at the rear of these clamps and, and plural types of adapters, in which first guides and second guides having different sizes and shapes in accordance with the sizes and shapes of single core optical fibers in use are mounted on respective plates that can detachably be fit in the guide groove. With the above design, the desired adapter having the proper guides and can be selected and used in accordance with the size and shape of a single core fiber in use, so that the cutting apparatus can be applied to optical fibers with different sizes and shapes.
摘要:
The optical fiber cutting apparatus are constituted by a combination of a cutting apparatus body in which two clamps and, a scoring blade and a pushing member are provided on predetermined positions on a base and a set table having a guide groove on its top is provided at the rear of these clamps and, and plural types of adapters, in which first guides and second guides having different sizes and shapes in accordance with the sizes and shapes of single core optical fibers in use are mounted on respective plates that can detachably be fit in the guide groove. With the above design, the desired adapted having the proper guides and can be selected and used in accordance with the size and shape of a single core fiber in use, so that the cutting apparatus can be applied to optical fibers with different sizes and shapes.
摘要:
A thrust bearing having a spiral element and a flat element is provided wherein both elements are arranged so as to be rotatable relative to each other and the spiral element is made completely of ceramics in a disk form having a pattern of spiral grooves on the surface thereof that opposes the flat element. The spiral grooves are formed by a shot-blasting process applied through a resin mask having a spiral pattern, the depth of the grooves being kept within a range of between 3 .mu.m and 50 .mu.m and the ratio of the outer diameter of the spiral element to the thickness of the spiral element being arranged to be aout 10: at least 0.4 or over.
摘要:
An electrically powered apparatus is disclosed in which an axial end surface of a rotor and an axis end surface of a stator are arranged to be sliding surfaces for effecting relative sliding motion therebetween, one of the sliding surfaces being provided with grooves adapted to generate fluid dynamic pressure upon relative rotation of said surfaces.
摘要:
A thrust bearing contructed to comprise a pair of disc elements one of which is arranged to rotate and the other of which is kept stationary, the surface of the rotating side opposing the stationary element being provided with a pattern of spiral grooves which are non-reflective while the remaining lands of the pattern are reflective so that a pulsed light beam is reflected from the pattern when a light beam is directed onto the rotating pattern through a hole provided in the stationary element, the reflected light pulses being utilized for determining the rotational speed of the element under rotation.