摘要:
A magnetic disk drive has a magnetic disk and a magnetic head assembly mounted on an arm. The assembly is utilized in the recording and reproducing of data on and from a recording/reproducing surface of a magnetic disk. The magnetic head assembly includes a support body for connecting the magnetic head assembly to the arm and a head chip attached to the support body. The head chip is configured and arranged for making substantially continuous sliding contact with the recording/reproducing surface of the magnetic disk during recording/reproducing. The head chip includes a wafer base, a read/write element for recording/reproducing data from the recording/reproducing surface of the magnetic disk. The read/write element is formed from a plurality of thin film layers superposed upon the wafer base and the head is elongated in a direction generally perpendicular to a plane generally defined by the recording/reproducing surface.
摘要:
Cellulosic single fibers such as cotton are prepared without any resins or pitches to a mass or bulk such as a lap which is self-shaped and retains its form by a force of cohesive intertanglement of fibers. The mass as prepared is heated for carbonization or graphitization, if desired, to obtain unique shaped carbides of porous and stable structures in which the cohesion of fibers is made more dense on account of the total shrinkage of the mass by carbonization.
摘要:
A warning system of a camera for providing a photographer a warning indicating an impediment to a window, provided in a front wall of the camera, through which light traveling toward and/or from a subject passes. It includes a touch sensor, disposed in close proximity to the window, which involves a resistance, or a body capacity, of a photographer's finger touching the sensor in, and as a part of, an electric circuit. This provides a change in electric parameter of the circuit by which a warning device is actuated to emit light, or otherwise generate sound, as the warning of impediment.
摘要:
A camera equipped with a date recording device which has a function switch selectively operative in two functions, an operation mode setting function for setting a specific operation mode of the camera and a display mode setting function for selectively setting display modes of the date/time display device, a function changing switch for causing the function switch to select one of the two functions. The date/time display device displays a time thereon when the function switch is operative with the operation mode setting function and flashes on and off at least one of figures of figures indicating the time when operative with said display mode setting function.
摘要:
A binary information display apparatus displays braille information with high accuracy by means of four braille pins, which are actuated by a stepping motor having a stepping angle of 45.degree. and, hence, eight step positions. The apparatus includes four pins; a triplet cam which acts on ends of three pins out of the four pins so as to independently urge such three pins to selectively project from a display surface of a pin-supporting member and to selectively retract the same behind the display surface; a stepping motor for rotating the triplet cam about an axis thereof; and a fourth cam portion which actuates the remainder of the four pins. The motor can perform consecutive seven steps at 45.degree. intervals, starting from a position where a rotation restricting projection on the fourth cam portion abuts a stopper step surface on the pin-supporting member, without causing rotation of the fourth cam portion. The state of the fourth pin is therefore not changed during such consecutive stepping of the stepping motor over seven steps. With the above-described structural arrangements and resulting operations thereof, it is possible to display eight types of braille information. Similarly, eight types of braille information can be displayed by reversing the motor. Consequently, sixteen types of braille information can be produced by the apparatus of this invention.
摘要:
A stepping motor having a shaft with a magnet fixed coaxially thereon, a pair of bobbins of soft magnetic material fixed along the shaft at opposite ends of the magnets, A-phase and B-phase coils wound around the bobbins, yokes having bottom plate portions fixed to the end portion of each of the bobbins on the magnet side and having short pole teeth facing part of the outer peripheral surface of the magnet, long pole teeth of soft magnetic material having one end releasably connected to an end portion of each of the bobbins on a side opposite to the magnet and an other end facing an outer portion of an outer peripheral surface of the magnet; and pole-tooth supports of non-magnetic material coaxially placed to surround the outer peripheral surface of the magnet with all of the long pole teeth integrally fixed to the pole-tooth support members and the short pole-teeth releasably inserted into the pole-tooth housing section formed in the pole-tooth support members.
摘要:
In a semiconductor device having a thin SOI film, the thickness of a semiconductor layer formed on an insulating film is so adjusted as to be less than a maximum distance allowable to complete depletion of the layer. While the thickness of a channel region is adjusted to be less than that of impurity-diffusion regions. Further, the insulating layer is so formed to have a thicker portion under the channel region, and thinner portions under the source region and the drain region as the impurity-diffusion regions. The semiconductor layer has steps at the boundaries between the channel region and the impurity-diffusion regions, and the top face of the channel region is arranged so as to be lower than the top faces of the impurity-diffusion regions. A region having a width less than the maximum depletion distance and an impurity concentration larger, than that of the channel region and less than that of the drain region is formed between the channel region and the drain region.
摘要:
An ultrasonic wave nebulizer has a vibrator-heater assembly unit (4) mounted at bottom of a water container (1) for converting water to mist, and heating water to provide warm mist. The assembly unit (4) has a circular piezoelectric vibrator element (9), and a ring-shaped conductive plate (7) surrounding said vibrator element (9). A heater (11) is attached on the rear surface of the conductive plate (7) so that the heater (11) is out of water. The assembly unit (4) has also a circuit element (13) for energizing the vibrator element (9). Water is heated, preferably, at less than 70.degree. C.
摘要:
The bobbin (21) of the heating resistor (1) is made by zirconia or glass fiber. On the surface of the bobbin, a platinum film (31) or a platimum wire (23) are formed. At both ends of the heating resistor, the heating resistor is supported by a pair of supporting conductors (25).
摘要:
A nebulizer which pumps up water and mists the pumped up water comprises an elongated main body with a center hole for water passage, and piezoelectric vibration elements together with electrodes for energizing the same mounted on the main body. The vibration elements are water-proofed, and the nebulizer itself is supported by using a flange on a water-proof member and the flange is on a plane on which a center electrode is positioned. Upon vibration of the elements, water is pumped up through the inlet of the main body, and is dissipated into the air through the outlet of the main body. Preferably, the inlet and the outlet are removable from the main body, and the inlet is coated with a thin hard film. Preferably, the outlet is covered with a mesh, or at least an opening of the outlet is covered for preventing the release of water that has not been convereted to mist.