Abstract: To form graphene to a practically even thickness on an object having an uneven surface or a complex surface, in particular, an object having a surface with a three-dimensional structure due to complex unevenness, or an object having a curved surface. The object and an electrode are immersed in a graphene oxide solution, and voltage is applied between the object and the electrode. At this time, the object serves as an anode. Graphene oxide is attracted to the anode because of being negatively charged, and deposited on the surface of the object to have a practically even thickness. A portion where graphene oxide is deposited is unlikely coated with another graphene oxide. Thus, deposited graphene oxide is reduced to graphene, whereby graphene can be formed to have a practically even thickness on an object having surface with complex unevenness.

Abstract: A water stop member of a crimp terminal is affixed to an inner wall surface of an electric wire connecting portion of a terminal fitting before crimping and forms into a first water stop area, a second water stop area, and a third water stop area after the crimping. The first water stop area suppresses entering of water from a space between the outer wall surface of a first barrel piece and the inner wall surface of a second barrel piece in the electric wire connecting portion. The second water stop area suppresses entering of water from the side closer to a terminal connecting portion of the terminal fitting than the distal end position of a core wire. The third water stop area suppresses entering of water from a space between the inner wall surface of a cover crimping portion of the electric wire connecting portion and a cover.

Abstract: A water stop member of a crimp terminal is affixed to the inner wall surface of an electric wire connecting portion of a terminal fitting before crimping and forms into a first water stop area, a second water stop area, and a third water stop area after the crimping. The first water stop area suppresses entering of water from a space between the outer wall surface of a first barrel piece and the inner wall surface of a second barrel piece in the electric wire connecting portion. The second water stop area suppresses entering of water from the side closer to a terminal connecting portion of the terminal fitting than the distal end position of a core wire. The third water stop area suppresses entering of water from a space between the inner wall surface of a cover crimping portion of the electric wire connecting portion and a cover.

Abstract: A lamp system (10) includes a straight tube type lamp (13) and a socket (14). The straight tube type lamp (13) includes a straight tube type cover (20) containing a light-emitting element, and caps (23) arranged at both ends of the cover (20). A pair of lamp pins (30) whose tips respectively protrude in directions intersecting a lamp longitudinal direction are protrudingly provided on end faces of the caps (23) at both the ends. The socket (14) includes a socket body (41), a rotor (42) which is arranged in the socket body (41) and on which the pair of lamp pins (30) of the straight tube type lamp (13) are mounted, and a pair of terminals to which the pair of lamp pins (30) mounted on the rotor (42) are connected. At least the rotor (42) can move in the lamp longitudinal direction.

Abstract: Provided is an electronic percussion instrument that is capable of simulating a playing technique for an acoustic percussion instrument. A tubular body part is opened on an axial end surface, and a head is attached to the axial end surface to be struck on the front surface. A capacitance sensor includes an electrode that generates a capacitance with respect to a detected conductor, such as a human body, positioned on the front surface side of the head. Because the capacitance sensor detects a change of a capacitance corresponding to a distance between the electrode and the detected conductor, whether the detected conductor approaches (contacts) the head or presses the head can be determined. As a result, the playing technique for the acoustic percussion instrument is simulated.

Abstract: An object is to provide a power storage device provided with a battery that is a power storage means, for safe and accurate supply of electric power in a short period of time for drive power supply voltage without checking remaining capacity of the battery or changing batteries with deterioration over time of the battery for drive power supply voltage. The power storage device is provided with a battery that is a power storage means as a power supply for supplying electric power and a counter circuit for counting charging time of the power storage means. An electromagnetic wave with electric field intensity, magnetic field intensity, and power flux density per unit time which are transmitted from a power feeder are controlled, and the power storage means is efficiently charged using the electromagnetic wave in a short period of time.

Abstract: A straight tube LED lamp includes: a straight tube in which a plurality of light emitting diodes is housed; a first cap for forming a power feeding connection to the plurality of light emitting diodes, provided on one axial direction end side of the straight tube; and a second cap for grounding, provided on another axial direction end side of the straight tube. A first terminal for forming an electrical connection to a power feeding terminal of a first lamp socket is provided in the first cap. A second terminal for forming an electrical connection to a grounding terminal of a second lamp socket is provided in the second cap.

Abstract: A level-shift circuit that operates stably is provided. The level-shift circuit has a function of boosting a first signal having an amplitude voltage between a first voltage and a second voltage to a second signal having an amplitude voltage between a third voltage and the second voltage. The level-shift circuit includes first to eighth transistors. Gates of the third and seventh transistors are electrically connected to a wiring for transmitting a third signal for controlling the amounts of current flowing into one of a source and a drain of the first transistor, one of a source and a drain of the second transistor, one of a source and a drain of the fifth transistor, and one of a source and a drain of the sixth transistor.

Abstract: A water stop member of a crimp terminal is affixed to an inner wall surface of an electric wire connecting portion of a terminal fitting before crimping and forms into a first water stop area, a second water stop area, and a third water stop area after the crimping. The first water stop area suppresses entering of water from a space between the outer wall surface of a first barrel piece and the inner wall surface of a second barrel piece in the electric wire connecting portion. The second water stop area suppresses entering of water from the side closer to a terminal connecting portion of the terminal fitting than the distal end position of a core wire. The third water stop area suppresses entering of water from a space between the inner wall surface of a cover crimping portion of the electric wire connecting portion and a cover.

Abstract: A water stop member of a crimp terminal is affixed to the inner wall surface of an electric wire connecting portion of a terminal fitting before crimping and forms into a first water stop area, a second water stop area, and a third water stop area after the crimping. The first water stop area suppresses entering of water from a space between the outer wall surface of a first barrel piece and the inner wall surface of a second barrel piece in the electric wire connecting portion. The second water stop area suppresses entering of water from the side closer to a terminal connecting portion of the terminal fitting than the distal end position of a core wire. The third water stop area suppresses entering of water from a space between the inner wall surface of a cover crimping portion of the electric wire connecting portion and a cover.

Abstract: As a display device has a higher definition, the number of pixels, gate lines, and signal lines are increased. When the number of the gate lines and the signal lines are increased, a problem of higher manufacturing cost, because it is difficult to mount an IC chip including a driver circuit for driving of the gate and signal lines by bonding or the like. A pixel portion and a driver circuit for driving the pixel portion are provided over the same substrate, and at least part of the driver circuit includes a thin film transistor using an oxide semiconductor interposed between gate electrodes provided above and below the oxide semiconductor. Therefore, when the pixel portion and the driver portion are provided over the same substrate, manufacturing cost can be reduced.

Abstract: As a display device has higher definition, the number of pixels is increased and thus, the number of gate lines and signal lines is increased. When the number of gate lines and signal lines is increased, it is difficult to mount IC chips including driver circuits for driving the gate lines and the signal lines by bonding or the like, whereby manufacturing cost is increased. A pixel portion and a driver circuit for driving the pixel portion are provided on the same substrate, and at least part of the driver circuit comprises a thin film transistor including an oxide semiconductor sandwiched between gate electrodes. A channel protective layer is provided between the oxide semiconductor and a gate electrode provided over the oxide semiconductor. The pixel portion and the driver circuit are provided on the same substrate, which leads to reduction of manufacturing cost.

Abstract: An object is to provide a power storage device provided with a battery that is a power storage means, for safe and accurate supply of electric power in a short period of time for drive power supply voltage without checking remaining capacity of the battery or changing batteries with deterioration over time of the battery for drive power supply voltage. The power storage device is provided with a battery that is a power storage means as a power supply for supplying electric power and a counter circuit for counting charging time of the power storage means. An electromagnetic wave with electric field intensity, magnetic field intensity, and power flux density per unit time which are transmitted from a power feeder are controlled, and the power storage means is efficiently charged using the electromagnetic wave in a short period of time.

Abstract: To provide a power storage device having excellent charge/discharge cycle characteristics and a high charge/discharge capacity. The following electrode is used as an electrode of a power storage device: an electrode including a current collector and an active material layer provided over the current collector. The active material layer includes a plurality of whisker-like active material bodies. Each of the plurality of whisker-like active material bodies includes at least a core and an outer shell provided to cover the core. The outer shell is amorphous, and a portion between the current collector and the core of the active material bodies is amorphous. Note that a metal layer may be provided instead of the current collector, the active material bodies do not necessarily have to include the core, and a mixed layer may be provided between the current collector and the active material layer.

Abstract: As a display device has a higher definition, the number of pixels, gate lines, and signal lines are increased. When the number of the gate lines and the signal lines are increased, a problem of higher manufacturing cost, because it is difficult to mount an IC chip including a driver circuit for driving of the gate and signal lines by bonding or the like. A pixel portion and a driver circuit for driving the pixel portion are provided over the same substrate, and at least part of the driver circuit includes a thin film transistor using an oxide semiconductor interposed between gate electrodes provided above and below the oxide semiconductor. Therefore, when the pixel portion and the driver portion are provided over the same substrate, manufacturing cost can be reduced.

Abstract: A power storage device a positive electrode including a positive electrode active material layer and a negative electrode including a negative electrode active material layer. The positive electrode active material layer includes a plurality of particles of x[Li2MnO3]-(1?x)[LiCo1/3Mn1/3Ni1/3O2] (obtained by assigning 0.5 to x, for example) which is a positive electrode active material, and multilayer graphene with which the plurality of particles of the positive electrode active material are at least partly connected to each other. In the multilayer graphene, a plurality of graphenes are stacked in a layered manner. The graphene contains a six-membered ring composed of carbon atoms, a poly-membered ring which is a seven or more-membered ring composed of carbon atoms, and an oxygen atom bonded to one or more of the carbon atoms in the six-membered ring and the poly-membered ring, which is a seven or more-membered ring.

Abstract: An object is to provide a semiconductor device that is capable of wireless communication, such as an RFID tag, which can transmit and receive individual information without checking remaining capacity of a battery or changing batteries due to deterioration with time in the battery for a drive power supply voltage, and maintain a favorable a transmission/reception state even when electric power of an electromagnetic wave from a reader/writer is not sufficient. The semiconductor device includes a signal processing circuit, a first antenna circuit connected to the signal processing circuit, an antenna circuit group, a rectifier circuit-group and a battery connected to the signal processing circuit.

Abstract: A sensor circuit with high sensitivity to ultraviolet light. Ultraviolet light is detected using a transistor containing an oxide semiconductor. When the transistor is irradiated with ultraviolet light or light including ultraviolet light, the drain current of the transistor depends on the intensity of the ultraviolet light. Data on the intensity of ultraviolet light is obtained by measuring the drain current of the transistor. Since the band gap of an oxide semiconductor is wider than that of silicon, the sensitivity to light with a wavelength in the ultraviolet region can be increased. Furthermore, an increase in dark current caused by temperature rise in the sensor circuit can be suppressed, resulting in a wider allowable ambient temperature range of the sensor circuit.

Abstract: As a display device has higher definition, the number of pixels is increased and thus, the number of gate lines and signal lines is increased. When the number of gate lines and signal lines is increased, it is difficult to mount IC chips including driver circuits for driving the gate lines and the signal lines by bonding or the like, whereby manufacturing cost is increased. A pixel portion and a driver circuit for driving the pixel portion are provided on the same substrate, and at least part of the driver circuit comprises a thin film transistor including an oxide semiconductor sandwiched between gate electrodes. A channel protective layer is provided between the oxide semiconductor and a gate electrode provided over the oxide semiconductor. The pixel portion and the driver circuit are provided on the same substrate, which leads to reduction of manufacturing cost.

Abstract: A display device of which frame can be narrowed and of which display characteristics are excellent is provided. In a display device including a switch portion or a buffer portion, a logic circuit portion, and a pixel portion, the pixel portion includes a first inverted staggered TFT and a pixel electrode which is connected to a wiring of the first inverted staggered TFT, the switch portion or the buffer portion includes a second inverted staggered TFT in which a first insulating layer, a semiconductor layer, and a second insulating layer are interposed between a first gate electrode and a second gate electrode, the logic circuit portion includes an inverter circuit including a third inverted staggered thin film transistor and a fourth inverted staggered thin film transistor, and the first to the fourth inverted staggered thin film transistors have the same polarity. The inverter circuit may be an EDMOS circuit.