Abstract: Filter circuit includes Nth-order active filters switching circuit which switches shorting or non-shorting of active filter, and power-supply control circuit which controls such that a power supply of active filter is turned off when switching circuit shorts active filter. A receiver employing filter circuit turns off the power supply of active filter not needed when no interference wave exists within a given range from a desired frequency band. The foregoing structure allows lowering the power consumption of filter circuit.

Abstract: A battery casing for receiving a battery for driving an electric vehicle, including: a tray member made from a resin and supporting the battery; a support member provided under a lower face of the tray member and supporting the tray member from a bottom thereof; a standing wall provided so as to stand in the tray member; and a sheet metal tray member placed on the tray member. The sheet metal tray member includes a plurality of sheet metal recesses that receive the battery and a sheet metal flange placed on an upper face of the standing wall. The standing wall includes a through hole formed through the standing wall in a standing direction of the standing wall. The support member and the sheet metal flange are fastened to the tray member by means of a sheet metal fastening member provided through the through hole.

Abstract: An IGBT is disclosed which separated into two groups (first and second IGBT portions). First and second Zener diodes each composed of series-connected Zener diode parts are disposed so as to correspond to the groups respectively. Each of the first and second Zener diodes has an anode side connected to a corresponding one of first and second polysilicon gate wirings, and a cathode side connected to an emitter electrode. Temperature dependence of a forward voltage drop of each of first and second Zener diodes is used for reducing a gate voltage of a group rising in temperature to throttle a current flowing in the group and reduce the temperature of the group to thereby attain equalization of the temperature distribution in a surface of a chip. In this manner, it is possible to provide an MOS type semiconductor device in which equalization of the temperature distribution in a surface of a chip or among chips can be attained.

Abstract: A broad oscillation frequency range and good phase noise characteristic are achievable simultaneously by an oscillation circuit and a resonance circuit connected to the oscillation circuit. The resonance circuit includes an inductor element connected to the oscillation circuit, a first variable capacitance section connected to the inductor element, and a second variable capacitance section connected in parallel to the first variable capacitance section. The first variable capacitance section includes a first variable capacitive element connected to the inductor element, and a second variable capacitive element connected in parallel to the first variable capacitive element. The first variable capacitive element changes its capacity value based on a control voltage and a first reference voltage. The second variable capacitive element changes its capacity value based on the control voltage and a second reference voltage.

Abstract: An objective of the present invention is to provide a bag sealing tape which can be repeatedly used without damaging a banded object such as a bag or the like when the object is opened, and which does not have to be separated for disposal; and a banding device and a banding method using the bag sealing tape. The bag sealing tape of the present invention includes adhesion zones and non-adhesion zones, and the adhesion zones are disposed on the surface of a base film in a stepping stone manner in a length direction of the base film.

Abstract: An object of the present invention is to provide a graft copolymer that is usable as various functional materials, that is stimulus responsive, and that is soluble in water at ordinary temperatures; and to provide an aqueous coating composition that comprises the graft copolymer as a thickener. The present invention also provides a rheology modifier for an aqueous coating composition comprising a graft copolymer consisting of (A) a main chain comprising an N-substituted (meth)acrylamide compound in a monomer component and having a lower critical solution temperature in water of 40° C. or higher, and (B) a hydrophobic side chain.

Abstract: A semiconductor device having an IGBT includes: a substrate; a drift layer and a base layer on the substrate; trenches penetrating the base layer to divide the base layer into base parts; an emitter region in one base part; a gate element in the trenches; an emitter electrode; and a collector electrode. The one base part provides a channel layer, and another base part provides a float layer having no emitter region. The gate element includes a gate electrode next to the channel layer and a dummy gate electrode next to the float layer. The float layer includes a first float layer adjacent to the channel layer and a second float layer apart from the channel layer. The dummy gate electrode and the first float layer are coupled with a first float wiring on the base layer. The dummy gate electrode is isolated from the second float layer.

Abstract: An electronic component includes an oscillator element, a driving circuit outputting a driving signal to the oscillator element, a clock frequency generator outputting a clock signal to the driving circuit, a clock frequency controller controlling a frequency of the clock signal, a consumption-current detection unit detecting a consumption current of the driving circuit, and a fault detection unit electrically connected to the consumption-current detection unit and the clock frequency controller. When the clock frequency controller changes the frequency of the clock signal, the detected consumption current changes, and allows the consumption-current detection unit to detect the change of the consumption current. The fault detection unit detects a fault based on the change of the frequency of the clock signal and the change of the consumption current. This electronic component can have a fault detection function and a small size.

Abstract: A product comprising a patterned optically anisotropic layer having two or more regions of different birefringence in the form of a pattern, comprising at least an intensity gradation-type pixel of approximately uniform birefringence and an area gradation-type pixel comprising two or more of drawing units of different birefringence, and each region of a single birefringence in the patterned optically anisotropic layer comprising a plurality of the drawing units is provided. The product permits the formation of full-color images (latent images) and includes delicate color representation, such as the densities of particular colors.

Abstract: A semiconductor device having an IGBT includes: a substrate; a drift layer and a base layer on the substrate; trenches penetrating the base layer to divide the base layer into base parts; an emitter region in one base part; a gate element in the trenches; an emitter electrode; and a collector electrode. The one base part provides a channel layer, and another base part provides a float layer having no emitter region. The gate element includes a gate electrode next to the channel layer and a dummy gate electrode next to the float layer. The float layer includes a first float layer adjacent to the channel layer and a second float layer apart from the channel layer. The dummy gate electrode and the first float layer are coupled with a first float wiring on the base layer. The dummy gate electrode is isolated from the second float layer.

Abstract: A semiconductor device includes a first semiconductor region of a first conductivity type; a second semiconductor region of a second conductivity type, disposed on a surface of the first semiconductor region, and having an impurity concentration higher than that of the first semiconductor region; a trench that penetrates the second semiconductor region to reach the first semiconductor region; a first electrode disposed inside the trench via an insulating film; a first recess portion disposed deeper than an upper end of the first electrode, in a surface layer of the second semiconductor region, so as to be in contact with the trench; and a second electrode embedded in the first recess portion.

Abstract: In an engine such as an engine for driving a pump or dynamo, in which a load increasing state does not appear as an accelerating state of rotation speed, it is intended to prevent the smoke emission in an abruptly load-increasing state, which might otherwise be caused by the suppression or interruption of an EGR quantity. The engine 10 comprises a supercharger 11 and an exhaust gas recirculation (EGR) device 12. The engine 10 makes an isochronous control or a droop control, when its rotation speed N is shifted from a no-load (idle) or light-load run to a high-load (load-increasing) state. In case it is detected, when the state of the engine 10 shifts to a load state, that the actual rotation speed N becomes lower by a predetermined rotation speed ?N than a target rotation speed Nm, an EGR valve 13 of the exhaust gas recirculation (EGR) device 12 is either throttled to an opening smaller by a predetermined opening ?F than the ordinary set opening F corresponding to the load state or fully closed.

Abstract: A radio receiver for diversity has a first receiving unit and a second receiving unit for diversity-receiving a signal of a radio frequency. The first receiving unit has a first mixer for converting the received signal of the radio frequency into an IF signal of a first intermediate frequency by an upper local method, and a first filter coupled to the output side of the first mixer. The second receiving unit has a second mixer for converting the received signal of the radio frequency into an IF signal of a second intermediate frequency by a lower local method, and a second filter coupled to the output side of the second mixer. The radio receiver can improve receiving sensitivity.

Abstract: A reception device according to the present invention includes: a step-variable gain amplifier; and a controller operable to control the gain of the step-variable gain amplifier based on the signal quality value of a demodulator. The gain of the step-variable gain amplifier varies within N gains from a first gain to an N-th gain, and the controller changes a number of the gain one by one when changing the gain of the step-variable gain amplifier. Thus, it is possible to realize a reception device using the step-variable gain amplifier requiring a low control voltage as compared to a continuously-variable gain amplifier.

Abstract: A VCO circuit includes a temperature detector circuit, a voltage generator circuit, a switch, a resonance circuit and an oscillator. The temperature detector detects a temperature, and the voltage generator circuit generates a voltage for coarse adjustment corresponding to the detected temperature and outputs the same voltage. The switch selects one of a DC voltage for fine adjustment and the voltage for coarse adjustment. The resonance circuit includes a varactor diode having a capacitance value adjusted based on the voltage selected by the switch, capacitors and an inductor, and has a predetermined resonance frequency. The oscillator generates an oscillation signal having an oscillation frequency corresponding to the resonance frequency by using the resonance circuit and outputs the same signal.

Abstract: A semiconductor device having an IGBT includes: a substrate; a drift layer and a base layer on the substrate; trenches penetrating the base layer to divide the base layer into base parts; an emitter region in one base part; a gate element in the trenches; an emitter electrode; and a collector electrode. The one base part provides a channel layer, and another base part provides a float layer having no emitter region. The gate element includes a gate electrode next to the channel layer and a dummy gate electrode next to the float layer. The float layer includes a first float layer adjacent to the channel layer and a second float layer apart from the channel layer. The dummy gate electrode and the first float layer are coupled with a first float wiring on the base layer. The dummy gate electrode is isolated from the second float layer.

Abstract: A spacer arranged inside a water jacket which is formed to surround peripheries of cylinder bores in a cylinder block of an internal combustion engine includes support legs extending in an up-and-down direction from a spacer main body part which partitions the water jacket into an upper and lower cooling water passages. The support legs are disposed in opposite end portions in a cylinder row line direction, where the temperatures of the cylinder bores tend to be lower. Accordingly, even if the flow of cooling water is more or less inhibited by the support legs and the cooling effect deteriorates, it is possible to prevent the temperatures of the respective cylinder bores from becoming different by suppressing the influence to a minimum.

Abstract: A frequency synthesizer receives a frequency compensation signal and a reference oscillation signal from an outside, and outputs first and second signals to an outside. The reference oscillation signal has a varying frequency. The frequency synthesizer includes an oscillator for generating the first signal based on the reference oscillation signal, and a frequency divider/multiplier for outputting the second signal by frequency-dividing or frequency-multiplying the first signal. The varying frequency of the first signal is compensated by the frequency compensation signal. This frequency synthesizer suppresses frequency variations of the first and second signals even if the reference oscillation signal has a large frequency variation.

Abstract: A receiver has a first semiconductor chip and second semiconductor chip for receiving signals of a first radio frequency band, and a communication unit for performing communication using signals of a second radio frequency band. A second mixing unit in the second semiconductor chip uses second local signals supplied from a second local signal oscillator when the frequency of first local signals fed from a first-local-signal-output terminal to a first-local-signal-input terminal is within a predetermined range from the second frequency band, or uses first local signals supplied from the first-local-signal-input terminal when the frequency of the first local signals fed from the first-local-signal-output terminal to the first-local-signal-input terminal is out of the predetermined range from the second frequency band.

Abstract: The present invention is to facilitate the attachment and maintenance work of left and right sheet guides of a shutter and to facilitate the return of the disengaged sheet. A sheet guide of a sheet shutter according to the present invention is a mechanism configured such that a sheet 2 is lifted and lowered by being wound and unwound around a sheet drum 5 supported between left and right support posts 3 and 3 according to the rotation of the sheet drum 5, and such that both the left and right ends of the sheet 2 are lifted and lowered by being guided by sheet guide sections 11 and 11 respectively installed in the support posts 3 and 3.