Abstract: A wiring board for manufacturing a resin-molding type semiconductor device includes a plurality of element regions each having a mount region on which a semiconductor element is mounted and an electrode wire, and a peripheral region surrounding the plurality of element regions and having resin-gripping means such as through holes engaged with a resin with which the plurality of element regions and the peripheral region are sealed.

Abstract: In an apparatus for fabricating an optical fiber, the apparatus includes a drawing furnace provided with an insertion opening for receiving an optical fiber perform, a feed mechanism configured to support one end of the optical fiber preform so as to feed into the drawing furnace, a first sealing unit configured to seal a clearance gap between the optical fiber preform and the insertion opening, and a second sealing unit configured to seal a gap between the optical fiber preform and the first sealing unit when a tapered portion formed at the one end side of the optical fiber preform passes through the insertion opening. As a result, the available entirety of the optical fiber preform can be changed to an optical fiber, so that the cost for fabricating the optical fiber can be significantly reduced.

Abstract: A D/A conversion circuit for performing D/A conversion at high speeds. The D/A conversion circuit includes a resistor string including a plurality of resistor elements connected between a low-potential power supply and a high-potential power supply. A plurality of first switch groups are connected to the connection nodes between the resistor elements for selectively outputting voltages at the connection nodes. The outputs of the switches of the first switch groups are connected in common to a corresponding one of the nodes. The plurality of nodes are connected to an output terminal of the D/A conversion circuit via a second switch group. Predetermined switches of the first switch groups are connected in parallel to third switches to apply voltages to the nodes.

Abstract: In a rear projection microdisplay TV with dynamic iris control, sensed average picture level (APL) or other sensed brightness level is used to dynamically establish microdisplay driver offsets including white balance.

Abstract: A magnetic head includes a magnetic sensor layer and upper and lower read shields sandwiching the magnetic sensor layer. At least one of the upper and lower read shields includes at least one end portion having a plurality of portions isolated in a core width direction of the magnetic sensor layer. The portions are isolated at least on an air bearing surface side. In this manner, edge noise can be suppressed even if external magnetic field noise or radio noise acts on the upper read shield, the lower read shield, the trailing shield, or the return yoke.

Abstract: A D/A conversion circuit for performing D/A conversion at high speeds. The D/A conversion circuit includes a resistor string including a plurality of resistor elements connected between a low-potential power supply and a high-potential power supply. A plurality of first switch groups are connected to the connection nodes between the resistor elements for selectively outputting voltages at the connection nodes. The outputs of the switches of the first switch groups are connected in common to a corresponding one of the nodes. The plurality of nodes are connected to an output terminal of the D/A conversion circuit via a second switch group. Predetermined switches of the first switch groups are connected in parallel to third switches to apply voltages to the nodes.

Abstract: The invention relates to a new mechanism for permitting a zoom lens to focus on a short distance subject by moving a focusing lens group in an amount that varies in an optical axis direction depending on a zooming position. The zoom lens comprises, in order from its object side, a positive first lens group, a negative second lens group and a positive third lens group. Zooming is implemented while the space between adjoining lens groups is varied, and focusing on a short distance subject is implemented by moving the negative second lens group in an amount that varies in the optical axis direction depending on a zooming position. The negative second lens group comprises a negative front unit G2F and a negative rear unit G2R. The space between the negative front unit G2F and the negative rear unit G2R is varied depending on a subject distance but that space remains constant wherever the zooming position lies.

Abstract: The apparatus includes a tube pump for discharging a fluid in a capping means sealing a nozzle forming face of a liquid ejecting head, having a roller member rolling on an inner periphery of a curved part of a tube member by pressing and deforming the curved part and a leak point, a phase detection means for detecting a phase of a rotational motion of the roller member, and a control means for controlling the operation of the tube pump. The control means has a function for stopping the roller member at a predetermined position based on information on the phase of the rotational motion of the roller member detected by the phase detection means. The suction amount of the liquid suction operation by the tube pump is prevented from variation.

Abstract: An automatic wiring method of a semiconductor integrated circuit determines a wiring position based on layout data in which a plurality of cells corresponding to circuit elements of the semiconductor integrated circuit, which comprises the steps of when arranging a predetermined signal line extending in a first direction, extracting one or more coordinates in a second direction orthogonal to the first direction of all connecting terminals selected to be connected to the predetermined signal line among connecting terminals respectively included in the plurality of cells; calculating an average value of the extracted coordinates; and determining a position of the predetermined signal line in the second direction based on the average value.

Abstract: A wiring board used for manufacturing a resin-molding type semiconductor device includes a plurality of element regions each having a mount region on which a semiconductor element is mounted and an electrode wire, and a peripheral region surrounding the plurality of element regions and having engagement parts such as through holes engaged with a resin with which the plurality of element regions and the peripheral region are sealed.

Abstract: A level shift circuit for sustaining the activation and inactivation response of a transistor with respect to an input signal in a preferable manner. The level shift circuit includes a shift circuit for converting an input signal having a first voltage to an output signal having a second voltage that is higher than the first voltage. The voltage generation circuit includes a control voltage generation circuit, for generating control voltage having a generally constant voltage level irrespective of the level of a power supply voltage, and a bias generation circuit. The bias generation circuit generates bias voltage so that the node voltage of the shift circuit is substantially equalized with the control voltage.

Abstract: A thin film magnetic head is provided. The thin film magnetic head includes a read head and a write head, a heating element, or the combination thereof. The heating element includes a heating conductor layer and a high-melting-point-material layer disposed so as to at least partially overlap the heating conductor layer. Electromigration in the heating conductor layer can be suppressed.

Abstract: A wiper device of a liquid ejection apparatus includes a first wiper that wipes a nozzle surface defined in a liquid ejection head, a second wiper that wipes a side surface of the liquid ejection head extending in a direction intersecting the nozzle surface, and a drive mechanism that drives the first and second wipers to move between respective standby positions and wiping positions. The second wiper is formed separately from a cap that seals the nozzle surface of the liquid ejection head. The drive mechanism operates to move the second wiper to the corresponding wiping position independently from the first wiper. In this manner, independent wiping of the side surface of the liquid ejection head is performed when desired.

Abstract: A D/A conversion circuit for performing D/A conversion at high speeds. The D/A conversion circuit includes a resistor string including a plurality of resistor elements connected between a low-potential power supply and a high-potential power supply. A plurality of first switch groups are connected to the connection nodes between the resistor elements for selectively outputting voltages at the connection nodes. The outputs of the switches of the first switch groups are connected in common to a corresponding one of the nodes. The plurality of nodes are connected to an output terminal of the D/A conversion circuit via a second switch group. Predetermined switches of the first switch groups are connected in parallel to third switches to apply voltages to the nodes.

Abstract: Cartridge total weight SN of an ink bag filled with ink is measured. Ink weight SU of ink stored in the ink bag is calculated from the found cartridge total weight SN (step S17). The ink weight SU is converted into a printable amount and this printable amount is stored in an IC chip as an initial value Sc for calculating a remaining amount (step S19). A printer reads the initial value Sc for calculating the remaining amount from the IC chip, subtracts the ink consumption amount from the initial value Sc for calculating the remaining amount to calculate a new ink remaining amount, and stores the calculated ink remaining amount in the IC chip.

Abstract: A method for manufacturing an optical fiber comprises setting a heating condition for heating a glass rod, which is a parent material of the optical-fiber, and an elongating speed of the glass rod based on a prescribed numerical value which changes with a progress of elongation of the glass rod; heating and elongating the glass rod to generate a preform based on the heating condition and the elongating speed which are set by the setting; and drawing the preform to a filament-like form by further heating the preform to generate the optical fiber.

Abstract: The apparatus includes a tube pump for discharging a fluid in a capping means sealing a nozzle forming face of a liquid ejecting head, having a roller member rolling on an inner periphery of a curved part of a tube member by pressing and deforming the curved part and a leak point, a phase detection means for detecting a phase of a rotational motion of the roller member, and a control means for controlling the operation of the tube pump. The control means has a function for stopping the roller member at a predetermined position based on information on the phase of the rotational motion of the roller member detected by the phase detection means. The suction amount of the liquid suction operation by the tube pump is prevented from variation.

Abstract: A method for manufacturing an optical fiber comprises setting a heating condition for heating a glass rod, which is a parent material of the optical fiber, and an elongating speed of the glass rod based on a prescribed numerical value which changes with a progress of elongation of the glass rod; heating and elongating the glass rod to generate a preform based on the heating condition and the elongating speed which are set by the setting; and drawing the preform to a filament-like form by further heating the preform to generate the optical fiber.

Abstract: A method for processing a preform supported with a stationary chuck and a movable chuck of a glass-working lathe comprises providing a burner of a type which is able to create flame-controlled conditions by controlling flow rates of a flammable gas and a supporting gas wherein the supporting gas is discharged from at least one group of discharge pipes co-axially classified into plural groups that are, respectively, controllable with respect to a gas flow rate. The preform is processed under the flame-controlled conditions. A burner system and a preform processing apparatus comprising the burner system, both suited for realizing the method, are also described.

Abstract: A method for manufacturing an optical fiber comprises setting a heating condition for heating a glass rod, which is a parent material of the optical fiber, and an elongating speed of the glass rod based on a prescribed numerical value which changes with a progress of elongation of the glass rod; heating and elongating the glass rod to generate a preform based on the heating condition and the elongating speed which are set by the setting; and drawing the preform to a filament-like form by further heating the preform to generate the optical fiber.