摘要:
A sheet feed roller is provided which is free of a circumferential bulge on a sheet sliding contact surface of a roller portion, thereby improving the quality of images formed by an electrophotographic device. In a sheet feed rolling element for use in an electrophotographic device including a roller portion (1) and shoulders (3) on both sides which are formed by curved chamfers, the parting line (PL) (14) between the fixed mold plate (11) and the movable mold plate (12) of a mold for injection molding is located at the boundary between one of the shoulders (3) and the outer periphery (4) of the roller portion (1), a step (8) is provided at the boundary due to a difference between the opening diameter (m1) of the portion of the cavity defined by the mold plate (11) and the opening diameter (m2) of the portion of the cavity defined by the mold plate (12) so that the one shoulder (3) has a smaller diameter than the outer peripheral surface (4), and a chamfer (17) is provided on the portion of the roller portion (1) adjacent to the one shoulder (3) so as to absorb any difference in molding shrinkage rate due to a difference in molecular orientation of resin at the step (8), thereby preventing a circumferential bulge on the outer periphery (4) of the roller portion (1) after the roller has been formed.
摘要:
A multi-output power supply device of low noise is disclosed that converts a first input voltage to plural different voltages. The multi-output power supply device includes a first power supply circuit for generating a constant voltage from the first input voltage, and outputs the constant voltage through a first output terminal; and one or more second power supply circuits each including a charge pump circuit for generating a constant voltage from the output voltage from the first power supply circuit. Each of the second power supply circuits changes a period of a charging and discharging cycle for charging and discharging a flying capacitor according to an electric current output from the second output terminal.
摘要:
A high-luminance light emitting element is manufactured by a method comprising: forming a light emitting layer on a first surface of a GaP substrate including the first surface and a second surface opposed to the first surface and having an area smaller than the first area, the light emitting layer emitting light of a wavelength λ permitted to pass through the GaP substrate; forming a plurality of side surfaces on the GaP substrate to be respectively aslant by substantially the same angle to become narrower toward the second surface; and forming a plurality of depressions and protrusions as high as 0.1λ to 3λ on the side surfaces.
摘要:
A direct current power supply apparatus includes a first power supply circuit and a second power supply circuit. The first power supply circuit converts a source voltage from an externally supplied direct current power source into a first voltage and provides the first voltage to an output terminal. The second power supply circuit converts the source voltage from the externally supplied direct current power source into a second voltage and provides the second voltage to the output terminal. The second power supply circuit is controlled to be turned on and off. The first power supply circuit detects voltage at the output terminal and, when the second voltage is not being provided because the second power supply circuit is inactivated, provides the first voltage.
摘要:
There are provided a semiconductor light emitting device wherein the variation in tone in each device is small and the variation in tone due to deterioration with age is also small, and a method for manufacturing the same. The semiconductor light emitting device includes an active layer for emitting primary light having a first wavelength by current injection, and a light emitting layer excited by the primary light for emitting secondary light having a second wavelength different from said first wavelength, wherein the primary light and the secondary light are mixed to be outputted.
摘要:
A semiconductor apparatus includes an input terminal to which an input voltage is applied; an output terminal at which an output voltage is obtained; a power supply circuit unit configured to generate the output voltage from the input voltage, the output voltage having a value corresponding to a duty cycle of a voltage setting signal that is externally applied to the semiconductor apparatus; and a determination circuit unit determining whether the voltage setting signal has a predetermined signal level for the duration of a first predetermined time or longer. The determination circuit unit activates the power supply circuit unit when the voltage setting signal does not have the predetermined signal level for the duration of the first predetermined time or longer. The power supply circuit unit is deactivated when the voltage setting signal has the predetermined signal level for the duration of the first predetermined time or longer.
摘要:
A total organic carbon measuring instrument including a measuring unit composed of, integrated together, organic substance oxidation part and carbon dioxide separation part and conductivity measuring part, control unit and data processing unit. In order to enhance the accuracy of conductivity measurement, the control unit is constructed so as to stop feeding of a sample water at the time of oxidation of organic substance and carry out feeding of the sample water at the time of sample water moving to the organic substance oxidation decomposition part and carbon dioxide separation part. The data processing unit is constructed so as to measure the total organic carbon concentration on the basis of conductivity at the time of arriving of sample water irradiated with ultraviolet rays of which relative intensity is a given value or higher at the carbon dioxide separation part.
摘要:
A vehicle seat has a seatback movable between an upright position and a horizontal position, a seat bottom movable between a use position perpendicular to the seatback and a stowage position parallel to the seatback, and a lock mechanism for holding the seat bottom at the stowage position when the seat bottom is moved to the stowage position. When the seatback is moved to the horizontal position, the vehicle seat has a dive-down state where the seatback and the seat bottom are stacked on top of the other. The seat bottom has a detection lever that, when the seat bottom becomes the dive-down state, comes into contact with a floor panel and is displaced. In the lock mechanism, when the detection lever is displaced, the function of holding the seat bottom at the stowage position becomes ineffective.
摘要:
The present invention is related to a composite flash memory device comprises a plural sector flash memory array which is divided to plural sector that is a minimum erasing unit of the flash memory device, a flash memory array storing control commands which control a total system of the composite flash memory device and/or the only composite flash memory device in and sharing I/O line of the plural sector flash memory array, the read operation of the flash memory array is enable when the plural sector flash memory array is gained access.
摘要:
An apparatus which comprises: an organic-substance oxidation part in which organic substances contained in a sample water supplied are oxidized into carbon dioxide; a carbon dioxide separation part in which the carbon dioxide contained in the sample water is caused to permeate and come into a measurement water; and a conductivity measurement part in which the conductivity of the measurement water is measured. The carbon dioxide separation part comprises: a sample water channel in which sample water flows; an intermediate water part in which intermediate water having a higher pH value in a neutral region than the sample water is present; and a measurement water channel through which the measurement water comprising deionized water flows. The sample water channel is in contact with the intermediate water part through a gas-permeable membrane, and the intermediate water part is in contact with the measurement water channel through a gas-permeable membrane.