摘要:
A rotary operating-type electronic device used mainly in a peripheral apparatus such as a mouse for computers, portable telephones, an electronic device mounted on an automobile, and the like, in which a rotary type component and a linearly-driven type component are operated by a rotating manipulation of an operating knob attached to an operating axle and a tilting manipulation of the same knob in a direction orthogonal to an axis of the operating axle. The device is so constructed that the operating axle is supported to be rotatable together with a rotary encoder unit and also tiltable, by fitting an end of the operating axle in an axle-supporting portion having a non-circular center hole of a rotor of the rotary encoder. An operating knob of either a discal shape or a polygonal shape having a predetermined width is attached to an intermediate portion of the operating axle that protrudes from the rotor, and a push switch is disposed in a position to be in contact with another end of the operating axle.
摘要:
A rotary type electronic component includes (a) a bearing formed of a cylindrical section and a substrate on which the cylindrical section is situated, (b) a rotary shaft formed of an upper section protruding from the bearing, a mid section journaled by the bearing, and a lower section having a flange with a hole which communicates with a recess formed axially in the shaft, (c) a case coupled with a lower face of the substrate so that the case covers the lower section of the shaft, and on its bottom plate having fixed contacts corresponding to movable contacts, (d) a spring housed in the recess of the shaft and biasing from inner section of the recess toward the bottom plate of the case, and (e) a frictional plate having a hole in the axial direction, engaging with a rim of recess opening, being urged by the spring against the bottom plate of the case, following the rotation of the shaft and yet moving axially and independently of the shaft. This construction allows the downsized component to keep required high torque with smooth tactile feel as well as a long service-life.
摘要:
Quartz powder is fed into a rotating mold to form a crucible-like quartz powder layer body with the help of centrifugal force in the mold. The layer is melted by heating through the inner surface with an arc discharge to manufacture an outer crucible member. A hollow cylindrical inner crucible member having a beveled lower edge is welded to the outer crucible member while a temperature of the inner surface portion of the outer crucible member remains at 1400.degree. C. or higher by a remaining heat.
摘要:
A gene coded for a polypeptide which possesses interleukin-2 is isolated, and connected with a vector DNA which is capable of replicating in a procaryotic or eucaryotic cell at a position downstream of a promoter gene in the vector obtaining a recombinant DNA, with which the cell is trans-formed to produce interleukin-2.
摘要:
A saw-wave generator (51) creates a saw-wave. Two comparators (COMP1, C0MP2) obtain two control signals having different duty ratios. Using these two control signals, two transistors (54, 56) are switched ON and OFF in complement and at voltage boost output when transistor (54) is OFF and transistor (56) is ON, transistor (57) is switched from ON to OFF and transistor (59) is switched from ON to OFF. A quadrupled voltage is thereby obtained.
摘要:
A plasmid having a temperature-sensitive replication origin which has the following properties: a) capable of autonomous replication in Corynebacterium and being retained in Corynebacterium; and, b) when a cell containing said plasmid is cultured at 31.degree. to 37.degree. C., replication of the plasmid is inhibited and at the same time, the plasmid is removed from the cell body; and a method for performing homologous recombination in Corynebacterium using the plasmid.
摘要:
The present invention relates to an electronic illumination apparatus which may be used in audio equipment. The electronic illumination apparatus allows recognition of the position of rotational operation of a knob by the light from a built-in light emitting diode. The object of the present invention is to provide an illumination type electronic part of rotational operation which is readily adaptable to changes in specifications for the rotational operation shaft. The disclosed apparatus also is able to withstand a strong thrust force applied to the rotational operation shaft, to reduce the hitting sound emitted from the rotatable stopper of the rotational operation shaft, and also to light up the illumination means disposed on the end of the rotational operation shaft in a stable manner. In order to achieve the foregoing object, the rotational operation shaft is made in a simple hollowed cylindrical shape, and the rotor having a stopper for restricting the extent of its rotational motion is prepared separately from the rotational operation shaft, preferably by resin molding. More preferably, the rotor is made of a transparent resin and integrally molded together with the light collecting lens for the light emitting apparatus.
摘要:
The present invention relates to a DNA fragment having a gene derived from fish which codes for a polypeptide possessing transglutaminase activity, a recombinant plasmid comprising a fish-derived DNA fragment which codes for a transglutaminase, a transformant into which a recombinant plasmid comprising a fish-derived DNA fragment which codes for a transglutaminase is introduced, and a method for the production of a transglutaminase, comprising culturing a transformant containing a fish-derived DNA fragment which codes for a transglutaminase.
摘要:
An extended storage is temporarily used for the dedicated use by a batch process to eliminate the contention of resources between an online process and the batch process and attain a high speed batch process while the online process is executed without affecting the online process. The online process is executed by inputting data from a file to a main storage, and the batch process updates the data on the extended storage in parallel with the online process. Since the accessing device for the online process and the batch process are different, there is no contention of resources. When the batch process is completed, the updated data is reloaded from the extended storage to the file. During the reloading of the updated data, the online process inputs the data from the extended storage. The extended storage is shared by the reloading of the updated data and the online process, but the contention of resources does not occur because both are input processes and the extended storage is a storage device which does not includes a mechanical movement unlike a magnetic disk drive.
摘要:
A rotary electronic device of a neutral position return type having an output that is controlled in a stepless mode. A rotary variable resistor of the rotary electronic device is installed on a tubular holder, and a torsion coil spring is disposed between a manipulation knob and the tubular holder. The neutral position return is very simply configured by using a small sized rotary variable resistor.