Abstract: A polyphase motor apparatus comprises a rotor having a rotating shaft and a plurality of permanent magnets connected therearound, a stator for holding the rotor rotatably and provided so as to surround the rotor, having n phases (n is an integer which is three or more) and n×m (m is an integer which is one or more) magnetic poles, in which each of n pairs of the magnetic poles adjacent to each other is wound with a core wire an end of which is connected to a common terminal (+E), such that one magnetic pole is a first magnetic polarity and the other magnetic pole is a second magnetic polarity different from the first magnetic polarity, and the n-phase voltage from outside is applied between the common terminal and the other end of the core wire of each pair so as to generate a magnetic field for rotating the rotor.

Abstract: To prevent irregular display such as bright lines or spots caused by power supply cut-off from appearing on a display screen. A switch controller is driven with a voltage VCH. During an on-state period, the switch controller divides charges in a charge carrier capacitor CC to boosting capacitors C2 to C4 to generate boosted voltages V2 to V4 each of which is higher than a source voltage VDD. A signal drive circuit and a scan drive circuit select a voltage from the voltages VDD and V1 to V4, and the selected voltages are applied to a liquid crystal display device to drive it. When the power supply is cut off, the source voltage VDD is reduced. A source voltage detector detects the voltage drop and a switch SW9 is turned to on-state. The switch controller is driven with the charges in a capacitor CG and turns switches SW1 to SW8 to on-state. Thus, the capacitors CC and C1 to C4 are discharged, and all voltages from a power source circuit are ground voltages VSS.

Abstract: In a method of fixing a part on a main base, the method comprises the step of mechanically fixing the part on the main base by using solder. The main base preferably may be made of resin while the part preferably may be made of one where the solder enables to adhere to the part. The resin of the main base comprises, for example, a liquid-crystal polymer. The main base may comprise an optical base for use in an optical pickup. The part may comprise a leaf spring or a photodiode (PD) base to which a photodiode is adhered.

Abstract: An optical element switching device is provided wherein a plurality of optical elements are held by a guide mechanism for guiding them to move straight or rotate and arranged on a turret, and positioned by a positioning part comprising a spring for pushing a ball into V grooves formed at a rotarys shaft of the turret rotated by a first motor wherein, a selected one of the optical elements is stopped in an optical path (i.e. an optical axis of objectives), and wherein the optical element is moved by a second motor along a direction in which it is guided by the guide mechanism, so that corrections such as adjustment of the contrast and the like are automatically executed at switching operations.

Abstract: A reflection type display having a front light comprises a light guide plate having a light incident portion to which the lights are introduced, a planar surface arranged on the surface facing said first substrate and a prismatic surface arranged on the other surface, said prismatic surface comprising pseudo-planar surfaces which are formed at an angle of approximately 0.5 to 3.5 degrees with said planar surface and are raised greater as being distanced away from said light incident portion and slanted surfaces which are formed at an angle of approximately 40 to 60 degrees with said planar surface and are descended greater as being distanced away from said light incident portion, said pseudo-planar surfaces and said slanted surfaces are arranged alternately to form multiple prisms.

Abstract: A reflection plate is provided which includes a reflection film having a flat reflection surface, and an optical film provided thereon. The optical film serves to converge and emit light which has entered therein, in a direction toward an observer. The optical film has first optical interfaces, which are provided to be inclined to a first direction with respect to a normal line of the reflection surface and to reflect or refract entering light, and second optical interfaces, which are provided to be inclined in a direction opposite to the first direction and to reflect or refract entering light. In addition, the optical film has an emission surface from which reflection light from the reflection surface and reflection light and/or refraction light from the first and second optical interfaces are emitted. A groove having a triangular cross-section is formed in the back surface side defined by the first and second optical interfaces.

Abstract: A machining tool (1) has a tool body (2) with tip seats (6, 7, 8, 9), to which cutting tips (11, 12, 13, 14) are assigned fixedly and individually. The cutting tips (11, 12, 13, 14) belong to a set of cutting tips. The machining tool (1) includes further sets of cutting tips, again with cutting tips (11, 12, 13, 14) individually assigned to the tip seats (6, 7, 8, 9). In order to assure that each cutting tip (11, 12, 13, 14) will be mounted on the tip seat (6, 6a, 7, 7a, 8, 8a, 9, 9a) on which it was ground, both the tip seats (6, 7, 8, 9, 6a, 7a, 8a, 9a) and cutting tips (11a through 14a) are provided with markings (34, 35), which allow an unequivocal, unmistakable association.

Abstract: In a lubricating device for a plurality of lubricating stations, in particular for supplying lubricant to knitting machines, a pump device is provided that serves at the same time as a distributor device. To that end, the pump device has a piston which is provided with a control groove. The corresponding pump cylinder has an inlet and a plurality of outlets distributed over the cylinder wall. Depending on which of the outlets the control groove of the piston is made to coincide with, a corresponding lubricating station is selected. The pump device is thus a distributor device as well.

Abstract: Disclosed is a method for manufacturing a semiconductor wafer having an epitxial layer on a surface thereof, by the steps of forming a pritective oxide film on a surface of a semiconductor wafer prior to loading of the wafer into an eptaxial growth furnace, removing the protective oxide film formed on the surface of the wafer by heating after the wafer is loaded in the furnace, and performing epitaxial growth of the epitaxial layer on the surface from which the protective oxide film is removed in the furnace. The protective oxide film is removed by heating the wafer in the furnace in an ambience of hydrogen gas at a pressure ranging from 0.0133×105 Pa to 1.013×105 Pa and at a temperature ranging from 800° C. to 1,000 ° C., or by heating the wafer in the furnace at a pressure of 5×106 Pa or under and at a temperature ranging from 800° C. to 1,000° C.

Abstract: An identification label is affixed on a top surface of an image forming unit which is detachably installed in a main component of an image forming apparatus. The identification label is made of a thermosensitive paper on which a trademark logo is printed. A logo reader in the main component reads a pattern of the logo mark on the identification label. A control unit compares the read logo pattern with a previously stored pattern to discriminate whether the read logo mark is genuine or not. If the identification label has the genuine logo mark, the control unit executes printing. If the identification label has an irregular logo mark, printing is abandoned and an error message is displayed. When a genuine image forming unit is exhausted, the control unit controls a heating device to apply heat to the identification label in order to wholly or partially discolor the identification label so that the logo mark is transformed to unreadable one. That unit will be regarded as an irregular one thereafter.

Abstract: In a method of carrying out defect management on reading data from a disk-shaped magnetic recording medium comprising a plurality of tracks separated into a user data area available to a user, an alternate area, and a management area, the method comprises the steps of retrying reading operation of data up to a maximum retry count when an error is detected on reading of data for a target sector in the user data area and of registering the target sector in a defect table in the management area and writing read-out data in an alternate sector in the alternate area in a case where a retry count is not less than a specific count when retry results in a success.

Abstract: A method of managing integrity defects concerning data written in a rewritable memory of an electronic component, said electronic component being suitable for performing operations that are capable of modifying at least some of said data and of interchanging information relating to said operations either off-line, directly with a terminal, or else on-line, with an issuer via said terminal.

Abstract: A camera comprising a camera sheath composed of a front cover unit and a rear cover unit, a camera body supported in the camera sheath, and positioning mechanism for positioning the camera body with respect to the camera sheath without fixing them. The positioning mechanism is composed of a pair of protrusions protruding from the front cover unit and a pair of hole portions formed in a reinforcing plate unit of the camera body and capable of being fitted individually on the protrusions. A gap of about 1 mm or less is formed in the whole area between the camera body and the camera sheath except fitting portions including the positioning mechanism.

Abstract: A display and camera device for a videophone comprises a liquid crystal display for displaying a picture, a camera such as a CCD sensor or a CMOS sensor, a free-form surface prism, and a prism for guiding light to the camera. The free-form surface prism has a concave reflector for optically enlarging a picture displayed on the display. A beam splitter is provided on a bonded surface between the free-form surface prism and the prism. The beam splitter is designed to reflect some of light beams from the display toward the reflector and transmit some of light beams from the reflector. A camera-system optical path extending from the camera is aligned with a display-system optical path extending from the display within the free-form surface prism and the outside space.

Abstract: The present invention relates to a charging device for storing electric energy in a plurality of electrical double layer capacitors, comprising a power source circuit, a capacitor bank having a plurality of capacitors, a control circuit for switching an interconnection state of the plurality of capacitors, and a voltage monitor circuit for monitoring a charged voltage in the plurality of capacitors, which repetitively carries out a step of performing a charging operation by switching the plurality of capacitors in the capacitor bank to a serial connection state, and a step of monitoring a charged voltage by using a voltage monitor circuit by switching the plurality of capacitors to a parallel connection state until the charged voltage reaches a predetermined value.

Abstract: Predetermined wiring of copper is formed on the upper surface of an elongated base film in a wiring forming area as a width-directional central portion of the base film. Further, band-shaped first reinforcing layers of copper are formed on width-directional opposite portions of the upper surface of the base film. As a result, even if the base film has a relatively thin thickness, portions of the base film near sprocket holes can be made to have a substantially desired strength. To keep the first reinforcing layers out of contact with the pins of a transfer pin roller, opening slightly larger than the sprocket holes are formed in the first reinforcing layers.

Abstract: In a communication control unit, CPU judges whether a telephone number of a caller is included in caller ID signals and communicating section starts communicating with the caller when the CPU judges that the telephone number of the caller is not included in the caller ID signals; or calls back the telephone number of the caller when the CPU judges that the telephone number of the caller is included in the caller ID signals.

Abstract: While a pinhole disk with pinholes is being rotated, a confocal image of a surface of a sample, which has passed through the pinholes, is imaged by a CCD camera. A vertical sync signal extraction circuit extracts a vertical sync signal from an image signal output from the CCD camera. A photodetector element senses the rotational state of the pinhole disk. A phase sync circuit synchronizes the phase of the vertical sync signal from the vertical sync signal extraction circuit with the phase of a sensor signal from the photodetector element, thereby controlling a drive motor for driving the pinhole disk.

Abstract: A resin sealing film is formed on a silicon substrate by using a printing mask and a squeegee. The side surface in the tip portion of the squeegee is substantially V-shaped, and the printing is performed by pushing the tip portion of the squeegee into the gap between adjacent bump electrodes. As a result, the sealing film is formed in a manner to be depressed in the region between adjacent bump electrodes so as to facilitate the swinging movement of the bump electrodes. It follows that, in a temperature cycle test performed after the silicon substrate is mounted to a circuit substrate, the stress derived from the difference in thermal expansion coefficient between the silicon substrate and the circuit substrate is absorbed by the bump electrode.