Abstract: Light that has entered a lens held by a barrel portion of a three-dimensional circuit board transmitting virtually no visible light enters a semiconductor imaging device held inside the three-dimensional circuit board. On the side opposite to the barrel portion, the three-dimensional circuit board is provided with a flexible printed circuit for sending a signal to and receiving a signal from the semiconductor imaging device. The region of the flexible printed circuit facing the semiconductor imaging device has sufficient shielding characteristics in a range sensitive to light reception by the semiconductor imaging device. This makes it possible to provide a sufficient shield against a light beam entering from the back surface of the semiconductor imaging device, so that the image quality does not deteriorate even when a conventional shielding sheet is not used.

Abstract: Coils, switching elements, and capacitors are connected in series to each other to form a plurality loop circuits, the loop circuits are divided into a plurality of blocks each including an arbitrary number of loop circuits. A control unit collectively controls the switching elements of the respective blocks to be ON by a block basis by selectively supplying pulse signals of different timings to the blocks, and makes settings or controls so that the polarities of the coils of the blocks alternately reverse.

Abstract: A current breaker circuit by which currents flowing in loads respectively connected to a plurality of storage devices connected in series are broken in accordance with a single external control signal. The current breaker circuit includes semiconductor switching devices inserted between the storage devices and the loads respectively, a unit for supplying the external control signal to at least one of the semiconductor switching devices, and control signal generating units for generating ON/OFF signals in accordance with turning ON/OFF of the semiconductor switching device supplied with the external control signal so as to supply the ON/OFF signals to the other semiconductor switching devices.

Abstract: A voltage equalizing apparatus for battery devices includes a core, a plurality of first battery devices interconnected in series with each other, each consisting of one or more cells, a plurality of secondary windings magnetically connected with each other through the core, a plurality of first switching devices, each connected to one of the plurality of secondary windings and one of the plurality of first battery devices to constitute a first closed circuit, one or more second battery devices provided separately from said plurality of first battery devices interconnected in series or a second battery device provided by rendering the whole of said plurality of first battery devices interconnected in series one battery device, a primary winding magnetically connected with the plurality of secondary windings through the core, and a second switching device connected in series with the second battery device and the primary winding to constitute a second closed circuit.

Abstract: In a magnetic disk apparatus comprising a flexible printed circuit for supplying power to a magnetic head and a coil of a voice coil motor, included is a dummy flexible printed circuit having the same mechanical characteristic as that of the flexible printed circuit. The dummy flexible printed circuit and the flexible printed circuit are located at positions establishing an axial-symmetrical relation with respect to a line connecting a pivot bearing, which rotatably supports a suspension, with a center of the coil of the voice coil motor. With this construction, the variation of the load on the voice coil motor due to the dummy flexible printed circuit offsets the variation of the load on the voice coil motor due to the dummy flexible printed circuit.

Abstract: Provided is a magnetic disk capable of reducing waves and realizing a high recording density. A main surface of the disk is made from a silicate glass substrate and has a magnetic recording layer and a shaft at its central portion. The sodium ions of the main surface of the disk are replaced with potassium ions so that the potassium ion concentration increases toward an outer circumference of the disk and the strength or rigidity of the disk increases accordingly toward the outer circumference of the disk. This can reduce waves which tend to occur on the outer circumferential side of the disk.

Abstract: A magnetic head device and a flexible disc device using the same are disclosed. In the disclosed arrangement, a deformation of a gimbal spring caused by an impact is prevented, thereby providing a magnetic head and a flexible disc having a high reliability. In a a double side type magnetic head in which one magnetic head placed on at least upper side of a disc is supported by a gimbal spring in a shape of a flat plate that can be torsionally displaced in two axes, for a linking unit which can be torsionally displaced around an axis, at least one regulator which has a small torsional rigidity and regulates a torsional displacement in the linking unit is placed at a position distant from the linking unit, and this regulator keeps the displacement in the linking unit in an elastic region to thereby prevent a plastic deformation and improve an impact resistance.

Abstract: a voltage equalizing apparatus for battery devices includes a core, a plurality of first closed circuits and a second closed circuit. The plurality of first closed circuits each includes one of a plurality of first battery devices interconnected in series, one of a plurality of secondary windings magnetically connected with each other through the core, and one of a plurality of first switching devices. The second closed circuit includes a second battery device, a primary winding magnetically connected with the secondary windings through the core, and a second switching device. The first switching devices and the second switching device are alternately turned ON and OFF to equalize the output voltages of the first battery devices. The first switching devices continue to be turned ON after completion of the transportation of the exciting energy stored in the core.

Abstract: A winding is wound directly on the magnetic head core formed of a single crystal of Mn—Zn ferrite. The diameter is 20-30 &mgr;m. A high-saturated magnetic flux density material (iron) having a magnetic flux density which is more than 1.3 T covers walls of the magnetic gap using sputtering. A slider including the magnetic head comprises ceramic including titanium calcium. The magnetic head is adhered to the slider with a low melting point glass. In a magnetic recording apparatus including the above-mentioned magnetic head, the slider includes air bearing surface trains arranged in the driving direction of the magnetic recording medium on a contact surface of the slider. Each bearing surface train includes protruding portions and a hollow portion direction. The hollow portion escapes the air between the protruding portion and the recording medium. The head is evacuated from the magnetic recording medium.

Abstract: An apparatus for measuring absorption dose distribution may be used for radiotherapy such as IMRT and Radiosurgery. In the apparatus, measurement or evaluation of the distribution of the radiated dose within the phantom can be achieved accurately and in a relatively short length of time. The apparatus includes a phantom constructed of a plate-type plastic scintillator (202) having a thickness within the range of 0.15 to 1 mm and plastic blocks (203a) and (203b) positioned so as to sandwich the plastic scintillator (202) therebetween, and an image analyzer (204). At least one of the plastic blocks (203a) and (203b) is transparent and the image analyzer measures a pattern of intensity distribution of light emitted from the plastic scintillator (202) when the phantom is irradiated with radiation.

Abstract: A voltage equalizing apparatus for battery devices includes a core, a plurality of first battery devices interconnected in series with each other, each consisting of one or more cells, a plurality of secondary windings magnetically connected with each other through the core, a plurality of first switching devices, each connected to one of the plurality of secondary windings and one of the plurality of first battery devices to constitute a first closed circuit, one or more second battery devices provided separately from said plurality of first battery devices interconnected in series or a second battery device provided by rendering the whole of said plurality of first battery devices interconnected in series one battery device, a primary winding magnetically connected with the plurality of secondary windings through the core, and a second switching device connected in series with the second battery device and the primary winding to constitute a second closed circuit.

Abstract: An intensity modulated radio therapy (IMRT) dosimeter measuring a three-dimensional absorption dose distribution in a transparent plastic phantom readily and accurately. In the IMRT dosimeter, radiation beams are directed to a phantom assembly having a scintillation fiber block sandwiched between two blocks of the phantom. As an intensity of light proportional to the radiation beam is emitted from one side of the scintillation fiber block, its profile is measured by an image sensor. Then, the three-dimensional absorption dose distribution is obtained from the light intensity distribution data. By summing the three-dimensional absorption dose distribution data measured with the radiation beam at different angles, an integrated three-dimensional absorption dose distribution in the phantom can be calculated readily and accurately.

Abstract: In such a voltage equalizer circuit in which each of plural windings P1 to Pn electromagnetically coupled to each other, each of plural storage elements E1 to En series-connected to each other, and each of plural first switching elements S1 to Sn are connected to each other in a series connecting manner so as to constitute a plurality of closed circuits, this voltage equalizer apparatus is featured by that a reference voltage winding Pp electromagnetically coupled to the plurality of windings is provided; both a DC power supply Ep and a second switching element Sp are series-connected to the second winding; and all of the plural first switching elements and the second switching element are turned ON/OFF in a synchronous manner.

Abstract: There are disclosed a resin composition comprising (A) a heat-resistant resin soluble in a solvent at room temperature, (B) a heat-resistant resin which is insoluble in a solvent at room temperature but becomes soluble by heating, and (C) a solvent; a heat-resistant resin paste further containing (D) particles or liquid state material D showing rubber elasticity; and a semiconductor device using the same and a method for producing the same.

Abstract: A voltage detection circuit for detecting terminal-to-terminal voltages of a plurality of storage devices B1 and B2 connected in series. In the voltage detection circuit for storage devices, voltage judgement units VPL-1, VPL-2, VPH-1 and VPH-2 are provided between the terminals of the plurality of storage devices respectively, and the judgement result of the initial-stage voltage judgement unit is transmitted to the next-stage voltage judgement unit without being isolated, so that the judgement result of the final-stage voltage judgement unit is obtained.

Abstract: A motor for moving a magnetic head includes a carriage. A suspension supports the magnetic head, and is connected to the carriage. A coil is fixed to the carriage. A guide rod is centered at the coil. A magnet arrangement consists of only two magnets located at positions opposed diagonally with respect to the guide rod.

Abstract: A current breaker circuit by which currents flowing in loads respectively connected to a plurality of storage devices B1 to B4 connected in series are broken in accordance with a single external control signal. The current breaker circuit includes semiconductor switching devices Q1 to Q4 inserted between the storage devices and the loads respectively, a unit S for supplying the external control signal to at least one of the semiconductor switching devices, and control signal generating units q1 to q3 for generating ON/OFF signals in accordance with turning ON/OFF of the semiconductor switching device supplied with the external control signal so as to supply the ON/OFF signals to the other semiconductor switching devices.

Abstract: A floppy disk drive comprising a magnetic head, a flexible printed circuit, and a plurality of connecting lands. The magnetic head is adapted to move in a radial direction of a recording medium which is rotated by a spindle motor for recording and reproducing an information on and from the recording medium. The flexible printed circuit is provided on a carrier for moving the magnetic head. The plurality of connecting lands is provided on the flexible printed circuit for respective lead wires which have been drawn out from the magnetic head. The connecting lands are apart from each other and located in a direction where the lead wires are drawn from the magnetic head and the connecting lands are electrically connected to each other. End portions of the lead wires are selectively connected to the connecting lands.

Abstract: The height of the lower head is equal to that of the upper heads. A mounting plate is provided between the lower head and a carriage to provide penetration arrangement. The lower head is fixed on the carriage through the mounting plate with adhesive. The mounting plate has a rough area having small holes to provide surely adhering with accuracy. The thickness of the mounting plate is accurate because of punching (cutting) processing and is greater than that of the shutter. The width of the mounting plate is greater than that of the lower head but smaller than the shutter opening of the floppy cartridge to avoid influence to the motion of access of the magnetic head to the floppy disk. The gimbal plate for the lower magnetic head is omitted, so that the orientation of said lower magnetic head is fixed.

Abstract: A magnetic read/write head apparatus which may be used in a floppy disk drive for personal computers. The head apparatus is designed to have an improved structure working to eliminate noise components contained in output signals. The structure has magnetic head cores and dummy magnetic head cores. The dummy magnetic head cores work to produce outputs 180° out of phase with outputs of the magnetic head cores, thereby canceling noises contained in the outputs of the magnetic head cores.