Abstract: A gas separation membrane that separates, by selective transmission, carbon dioxide from a mixed gas containing the carbon dioxide and nitrogen, the gas separation membrane including: a first layer; and a second layer provided at one surface of the first layer and composed of a compound having carbon dioxide separation ability, wherein an average thickness of the second layer is smaller than an average thickness of the first layer, and the second layer satisfies 0.56<?2, where an activity coefficient of nitrogen in the second layer, calculated by the COSMO-RS method, is ?2N2, an activity coefficient of carbon dioxide in the second layer is ?2CO2, and a separation performance parameter of the second layer at 25° C. is ?2=ln(?2N2)?ln(?2CO2).

Abstract: A gas separation membrane includes a first layer and a second layer that is provided at the surface on one side of the first layer and that includes a compound having gas separation ability. The average thickness of the second layer is smaller than an average thickness of the first layer. The second layer is an inkjet coating. The compound preferably includes a structure derived from PET, POM, PLA, PDMS, cellulose, or a coupling agent.

Abstract: A power supply device is connectable to a single-phase AC power supply or a multi-phase AC power supply. The power supply device includes power conversion circuits, a relay circuit, and a processor. The relay circuit is capable of switching between a first state and a second state. In the first state, a power supply line of each phase of the multi-phase AC power supply is connected to a corresponding power conversion circuit. In the second state, a power supply line of the single-phase AC power supply is connected to two or more of the power conversion circuits. The processor controls output timing of a control signal for operating the relay circuit on the basis of a detected temperature. The output timing is controlled such that, the first state is switched to the second state at timing when an AC voltage of the single-phase AC power supply crosses zero.

Abstract: A power transmission device includes power transmission coils arranged in a line, a power transmission circuit connected to the power transmission coils, and control circuitry that switches an electrical connection between the power transmission circuit and each power transmission coil, detects a relative position between the power receiving coil and each power transmission coil, selects two or more power transmission coils adjacent to each other based on the detected relative position, and causes the power transmission circuit to supply the AC power to the selected two or more power transmission coils. In an array direction of the power transmission coils, a width Dwt of each power transmission coil is shorter than a width Dwr of the power receiving coil. In a direction perpendicular to the array direction, a width Dlt of each power transmission coil is equal to or longer than a width Dlr of the power receiving coil.

Abstract: A power conversion apparatus is provided with: a plurality of power conversion circuits each provided with a transformer and supplying DC power to a common rechargeable battery; a control circuit configured to control the power conversion circuits; and a cooling device configured to cool the power conversion circuits. The cooling device is provided with at least one flow path for a coolant, the flow path being in thermal contact with the transformers of the power conversion circuits. When a load voltage of the rechargeable battery is equal to or higher than a predetermined threshold, the control circuit operates one power conversion circuit of the plurality of power conversion circuits, the one power conversion circuit provided with the transformer having a largest thermal contact area with the flow path, and stops operations of other power conversion circuits of the plurality of power conversion circuits.

Abstract: A power conversion apparatus is provided with: a plurality of power conversion circuits each provided with a transformer and supplying DC power to a common rechargeable battery; and a control circuit configured to control the plurality of power conversion circuits. When a load voltage of the rechargeable battery is equal to or higher than a first threshold, the control circuit selectively and sequentially operates the plurality of power conversion circuits such that one of the plurality of power conversion circuits is operated, and others of the plurality of power conversion circuits are stopped.

Abstract: A light emitting device is composed of a light source, including a plurality of LEDs, and a polarizing element that receives rays of light emitted from the light source and causes at least in part the rays of light to transmit therethrough and be then incident on a work. Besides, each of the plurality of LEDs has an optical axis tilting at a first angle ?1 with respect to the work, whereas a second angle ?2, defined as half of a light distribution angle of the rays of light emitted from each of the plurality of LEDs, is set to be less than the first angle ?1. Moreover, an illuminance and a cumulative illuminance of the rays of light incident on the work or an exposure surface are adjusted by changing electricity to be inputted to the plurality of LEDs.

Abstract: An image forming apparatus (1) includes a process unit (P) which is configured to be turned upward and then detached from an apparatus main body (3). The process unit (P) includes: a photosensitive drum (47); a developing device (51) which forms a developing nip area; a guide member (81) which comes into contact with an upper surface of a sheet and guides the sheet; and a seal member (91) supported between the developing device (51) and the guide member (81) in a turnable manner, wherein the seal member (91) opens a gap between the developing device (51) and the guide member (81) in a state where the process unit (P) is attached to the apparatus main body (3), and when the process unit (P) is turned upward, the seal member (91) is turned to close the gap between the developing device (51) and the guide member (81).

Abstract: A light irradiation device for an exposure apparatus allowing implementation of photo-alignment process with a simple configuration is provided. The light irradiation device is configured using a light source with a plurality of LEDs, and a polarizing element that receives light from the light source and applies the light transmitted through the polarizing element to a workpiece. An optical axis of each of the LEDs is set in such a manner as to have a first angle ?1 to the workpiece. A second angle ?2 as an angle half of a light distribution angle of the light emitted from each of the LEDs is set smaller than the first angle ?1.

Abstract: A transformer includes a primary winding, a secondary winding, a first core, and a second core. The primary winding and the secondary winding are inserted into the first core and the second core, and the first core and the second core are disposed to face each other. The first core includes one first core portion, and the second core includes a plurality of second core portions. The first core is a lower core, and the second core is an upper core. The first core and the second core are disposed to face each other with a gap interposed between the first core and the second core. The first core and the second core include a heat-resistant elastic body in the gap, and are disposed to face each other. Each of the second core portions is disposed with a heat-resistant elastic body interposed between the second core portions.

Abstract: A power transmission device includes power transmission coils arranged in a line, a power transmission circuit connected to the power transmission coils, and control circuitry that switches an electrical connection between the power transmission circuit and each power transmission coil, detects a relative position between the power receiving coil and each power transmission coil, selects two or more power transmission coils adjacent to each other based on the detected relative position, and causes the power transmission circuit to supply the AC power to the selected two or more power transmission coils. In an array direction of the power transmission coils, a width Dwt of each power transmission coil is shorter than a width Dwr of the power receiving coil. In a direction perpendicular to the array direction, a width Dlt of each power transmission coil is equal to or longer than a width Dlr of the power receiving coil.

Abstract: A power transmission device includes power transmission coils arranged in a line, a power transmission circuit connected to the power transmission coils and supplying the AC power to the power transmission coils, and control circuitry that switches an electrical connection state between the power transmission circuit and each of the power transmission coils, detect a relative position between the power receiving coil and each of the power transmission coils, selects a number of power transmission coils adjacent to each other based on the detected relative position, the selected number of power transmission coils being fixed, and causes the power transmission circuit to supply the AC power to the selected number of power transmission coils. In an array direction of the power transmission coils, a width Dwt of each of the power transmission coils is shorter than a width Dwr of the power receiving coil and Dwt/Dwr?0.875.

Abstract: An image forming apparatus includes a toner container, and a lock drive portion. The toner container is attached to an attachment position set in an apparatus main body. The lock drive portion acquires a identification information from a storage portion, and upon determining, based on the identification information, that the toner container has an attachment compatibility, places a lock member at a lock position, and upon determining that the toner container does not have the attachment compatibility, places the lock member at a unlock position.

Abstract: An image forming apparatus includes a drum unit, a process frame, a lock member and an intermediate transferring unit. The drum unit rotatably supports a rotating shaft of a photosensitive drum. The process frame has an attachment part to which the drum unit is attached. The lock member positions the drum unit to the attachment part. The intermediate transferring unit is attached to the process frame after the drum unit is attached. The lock member has a supporting part, an engagement part and a restriction part. Though the supporting part, an end of the rotating shaft is passed. The engagement part is engaged with the process frame between the process frame and the intermediate transferring unit. The restriction part interferes with the intermediate transferring unit between the engagement part and the intermediate transferring unit to prevent the engagement part from being detached from the process frame.

Abstract: An image forming apparatus includes a toner container, and a lock drive portion. The toner container is attached to an attachment position set in an apparatus main body. The lock drive portion acquires a identification information from a storage portion, and upon determining, based on the identification information, that the toner container has an attachment compatibility, places a lock member at a lock position, and upon determining that the toner container does not have the attachment compatibility, places the lock member at a unlock position.

Abstract: In an embodiment, a wireless power transmission system includes at least one of the following combinations: i) a transmission-side series resonance circuit including the first coil and a first capacitor disposed between the first coil and a power transmission circuit, and ii) a transmission-side parallel resonance circuit including the second coil and a second capacitor disposed between the second coil and the two power transmission electrodes, and a combination of i) a reception-side parallel resonance circuit including a third coil and a third capacitor disposed between the third coil and two power reception electrodes, and ii) a reception-side series resonance circuit including a fourth coil and a fourth capacitor disposed between the fourth coil and a power reception circuit.

Abstract: A wireless power transmission apparatus is provided for performing non-contact transmission of power by electromagnetic induction, and includes a power transmitter performing frequency conversion; a power transmitting antenna connected to the power transmitter; and a first resonance capacitor connected between the power transmitter and the power transmitting antenna, and resonating with the power transmitting antenna to pass the power transmission frequency of the power transmitter. The wireless power transmission apparatus includes a power receiving antenna arranged to oppose the power transmitting antenna; a power receiver connected to the power receiving antenna, and performing rectification and smoothing; and a second resonance capacitor connected between the power receiving antenna and the power receiver, and resonating with the power receiving antenna to pass the power transmission frequency of the power transmitter.

Abstract: An electric power transmission device includes a first power transmitting electrode, a second power transmitting electrode, a conductive first shield disposed between the first power transmitting electrode and the second power transmitting electrode, a conductive second shield that covers at least one of a first gap between the first power transmitting electrode and the first shield or a second gap between the second power transmitting electrode and the first shield, and a conductive third shield that covers at least one of a plurality of gaps between a plurality of divided portions of the second shield.

Abstract: A power transmission device having a surface a part of which defines a power transmission plane. The device includes: a power transmission coil structure including 2N planar coils laminated in a perpendicular direction to the power transmission plane and wirelessly transmitting AC power to a power receiving device via the power transmission plane and being disposed on a side toward the power transmission plane; and a magnetic substance disposed on a side of the power transmission coil opposite from the power transmission plane, wherein the 2N planer coils constitute coil groups including a coil group in which an i'th closest planar coil to the power transmission plane out of the 2N planar coils and the i'th-closest planar coil to the magnetic substance out of the 2N planar coils are connected in series, and the coil groups are connected in parallel to each other.

Abstract: A power transmission device having a surface a part of which defines a power transmission plane, the device includes: a power transmission circuit converting DC power into AC power; and a power transmission coil structure including 2N planar coils laminated in a direction which is perpendicular to the power transmission plane, the power transmission coil structure wirelessly transmitting the converted AC power to a power receiving coil of a power receiving device via the power transmission plane and being disposed on a side toward the power transmission plane in the power transmission device. The 2N planer coils constitute coil groups including a coil group in which a planar coil having an i'th highest inductance out of the 2N planar coils and a planar coil having an i'th-lowest inductance are connected in series and the coil groups are connected in parallel to each other.