Abstract: A dielectric heating device includes a transport section that transports a medium; an electrode unit that has a first electrode and a second electrode facing the medium in a first direction and to which an AC voltage is applied, and that heats the medium by a dielectric heating; and a control section which controls the transport section, wherein the second electrode is located to surround the first electrode as viewed along the first direction, the first electrode includes a first conductor and a second conductor protruding from the first conductor toward the medium, and the second conductor is covered by the first conductor when projected onto a plane perpendicular to the first direction.

Abstract: A heating control section for controlling a voltage applying section and a moving section for reciprocate a carriage on which the first electrode unit is mounted executes heating control for heating a medium while moving the first electrode unit in a scanning direction in at least one of an outgoing path in which the first electrode unit moves in one direction of the scanning direction and a return path in which the first electrode unit moves in the opposite direction.

Abstract: Provided is an ink jet printer including: an electromagnetic wave generator that includes an electromagnetic wave generation section, a high-frequency voltage generation section generating a voltage applied to the electromagnetic wave generation section, and a transmission line coupling the electromagnetic wave generation section and the high-frequency voltage generation section to each other in which the electromagnetic wave generation section includes a first electrode, a second electrode, a first conductor that couples the first electrode and the transmission line to each other, and a second conductor that couples the second electrode and the transmission line to each other, a minimum separation distance between the first conductor and the second conductor is 1/10 or less of a wavelength of an output electromagnetic wave, and the first conductor includes a coil, and the coil is disposed at a position closer to the first electrode than the transmission line; a carriage that reciprocates in a width direction

Abstract: A dielectric heating device includes: a transport unit configured to transport a medium in a transport direction; an electrode unit configured to dry the medium transported by the transport unit by dielectric heating, the electrode unit including a first electrode and a second electrode that face the medium; a voltage application unit configured to apply an AC voltage to the first electrode and the second electrode; and a control unit configured to control the transport unit. The second electrode includes a first portion and a second portion that sandwich the first electrode in the transport direction. The first portion is disposed upstream of the second portion in the transport direction. The first electrode and the second electrode are formed such that a heating amount of the medium by an electric field formed between the first electrode and the first portion is larger than a heating amount of the medium by an electric field formed between the first electrode and the second portion.

Abstract: A dielectric heating device includes a first heater, configured to heat and dry the liquid, having first electrode and the second electrode facing a medium on which is deposited a liquid containing water, and a first coil electrically coupled in series with the first electrode, and a voltage application section that applies an AC voltage having a predetermined driving frequency to the first electrode and the second electrode. The first heater is configured such that a difference between a resonant frequency of the first heater and the driving frequency when the water content of the medium is in a first range is smaller than the difference between the resonant frequency of the first heater and the driving frequency when the water content is in a second range smaller than the first range, and a heat amount, when the water content is in the first range, is larger than a heat amount, when the water content is in the second range.

Abstract: A liquid crystal display element includes a pixel region which optically modulates received illumination light for each pixel. A heat sink dissipates heat of the liquid crystal display element. A first mask member is fixed to the heat sink, is formed of a material having a lower heat transfer rate than the heat sink, includes a first opening of which the size corresponds to the size of the pixel region, and masks unnecessary light. A second mask member is arranged at a position further away from the liquid crystal display element than the first mask member, is fixed to the heat sink, is formed of a material having a higher heat transfer rate than the first mask member, includes a second opening of which the size is equal to or larger than the size of the first opening, and masks the unnecessary light.

Abstract: Provided is a liquid ejecting device. An alternating current electric field generation unit includes a first electrode and a second electrode disposed adjacent to each other, a high-frequency voltage generation unit configured to generate a high-frequency voltage to the first electrode and the second electrode, and a conductor configured to electrically couple the first electrode and the second electrode to the high-frequency voltage generation unit. Based on a result detected by a detection unit configured to detect a change in an alternating current electric field generated from the alternating current electric field generation unit, a control unit is configured to stop generation of the high-frequency voltage from the high-frequency voltage generation unit to the first electrode and the second electrode.

Abstract: A printing apparatus 1 includes a pretreatment unit 4 that applies a processing liquid containing a polar material to a fabric M, a printing unit 5 that applies ink containing a color material to the fabric M applied with the processing liquid, and an AC electric field generator 62 that generates an AC electric field. The AC electric field generator 62 includes a first electrodes 71 and a second electrode 72 that face the fabric M and that are disposed adjacent to each other, a high-frequency voltage generator 77 that generates a high-frequency voltage to be applied to the first electrodes 71 and the second electrode 72, and a conductors 73 that electrically connects the first electrodes 71 and the second electrode 72 to the high-frequency voltage generator 77.

Abstract: A drying device that dries a medium being transported, the drying device includes a support that supports a medium being transported, an AC electric field generation unit that generates an AC electric field, a detector that detects an amount of moisture contained in the medium, and a control unit, wherein the AC electric field generation unit has first electrode and second electrodes disposed adjacent to each other and facing the medium supported by the support, a high-frequency voltage generator that generates a high-frequency voltage at the first and second electrodes, and a conductor that electrically couples the first electrode and the second electrode to the high-frequency voltage generator, and the detector is disposed at least one of downstream or upstream of the first and second electrodes in a transporting direction, and the control unit controls the AC electric field generation unit in accordance with a detection result of the detector.

Abstract: A dielectric heating device includes a first electrode and a second electrode that face an object to be heated and to which an AC voltage is applied, and a coil that is electrically coupled in series to the first electrode. A linear distance between one end and the other end of the coil is equal to or smaller than a linear distance between the one end and a central portion of the coil in a magnetic path direction of the coil.

Abstract: A dielectric heating device includes: an electrode unit including a first electrode and a second electrode that face a to-be-heated object, and configured to heat the to-be-heated object; a voltage application unit configured to apply an alternating-current voltage to the first electrode and the second electrode; a current value detection unit configured to detect a current value of an alternating current that flows through the electrode unit; a phase difference detection unit configured to detect a phase difference between the alternating-current voltage and the alternating current; an impedance detection unit configured to detect an impedance of the electrode unit based on the current value and the phase difference; and a control unit configured to control output of alternating-current power output to the electrode unit by controlling the voltage application unit based on the impedance.

Abstract: Provided is a dielectric heating apparatus for heating a first ink and a second ink that adhere to a medium. The first ink contains carbon black, and the second ink does not contain carbon black. The dielectric heating apparatus includes: a first electrode unit as an electrode unit configured to heat the first ink and the second ink, the first electrode unit including a first electrode and a second electrode that face the medium; and a first voltage application unit configured to apply an AC voltage having a frequency of 300 MHz or more and 300 GHz or less to the first electrode and the second electrode.

Abstract: Provided is an electromagnetic wave generator including: an electromagnetic wave generation section that generates an electromagnetic wave; a high-frequency voltage generation section that generates a voltage applied to the electromagnetic wave generation section; and a transmission line that electrically couples the electromagnetic wave generation section and the high-frequency voltage generation section to each other, in which the electromagnetic wave generation section includes a first electrode, a second electrode, a first conductor that electrically couples the first electrode and the transmission line to each other, and a second conductor that electrically couples the second electrode and the transmission line to each other, one of the first electrode or the second electrode is a reference potential electrode to which a reference potential is applied and the other is a high-frequency electrode to which a high-frequency voltage is applied, a minimum separation distance between the first electrode and the

Abstract: Provided is a liquid ejecting device. An alternating current electric field generation unit includes a first electrode and a second electrode disposed adjacent to each other, a high-frequency voltage generation unit configured to generate a high-frequency voltage to the first electrode and the second electrode, and a conductor configured to electrically couple the first electrode and the second electrode to the high-frequency voltage generation unit. The first electrode and the second electrode are disposed upstream of a liquid ejecting head in a transport direction of a medium.

Abstract: According to an aspect of the present disclosure, there is provided a drying device disposed at a predetermined interval from a recording medium and including a heater configured to dry liquid applied to the recording medium with a high frequency wave. The heater includes a first electrode coupled to a power supply that outputs the high frequency wave and a second electrode coupled to the power supply that outputs the high frequency wave and disposed to be separated from the first electrode at a predetermined interval. The distance between the end of the first electrode and the recording medium is longer compared with the distance between the center of the first electrode and the recording medium.

Abstract: A liquid crystal display element includes a pixel region which optically modulates received illumination light for each pixel. A heat sink dissipates heat of the liquid crystal display element. A first mask member is fixed to the heat sink, is formed of a material having a lower heat transfer rate than the heat sink, includes a first opening of which the size corresponds to the size of the pixel region, and masks unnecessary light. A second mask member is arranged at a position further away from the liquid crystal display element than the first mask member, is fixed to the heat sink, is formed of a material having a higher heat transfer rate than the first mask member, includes a second opening of which the size is equal to or larger than the size of the first opening, and masks the unnecessary light.

Abstract: A printing apparatus 1 includes a pretreatment unit 4 that applies a processing liquid containing a polar material to a fabric M, a printing unit 5 that applies ink containing a color material to the fabric M applied with the processing liquid, and an AC electric field generator 62 that generates an AC electric field. The AC electric field generator 62 includes a first electrodes 71 and a second electrode 72 that face the fabric M and that are disposed adjacent to each other, a high-frequency voltage generator 77 that generates a high-frequency voltage to be applied to the first electrodes 71 and the second electrode 72, and a conductors 73 that electrically connects the first electrodes 71 and the second electrode 72 to the high-frequency voltage generator 77.

Abstract: Provided is an electromagnetic wave generator including: an electromagnetic wave generation section that generates an electromagnetic wave; a high-frequency voltage generation section that generates a voltage applied to the electromagnetic wave generation section; and a transmission line that electrically couples the electromagnetic wave generation section and the high-frequency voltage generation section to each other, in which the electromagnetic wave generation section includes a first electrode, a second electrode, a first conductor that electrically couples the first electrode and the transmission line to each other, and a second conductor that electrically couples the second electrode and the transmission line to each other, one of the first electrode or the second electrode is a reference potential electrode to which a reference potential is applied and the other is a high-frequency electrode to which a high-frequency voltage is applied, a minimum separation distance between the first electrode and the

Abstract: A drying device that dries a medium being transported, the drying device includes a support that supports a medium being transported, an AC electric field generation unit that generates an AC electric field, a detector that detects an amount of moisture contained in the medium, and a control unit, wherein the AC electric field generation unit has first electrode and second electrodes disposed adjacent to each other and facing the medium supported by the support, a high-frequency voltage generator that generates a high-frequency voltage at the first and second electrodes, and a conductor that electrically couples the first electrode and the second electrode to the high-frequency voltage generator, and the detector is disposed at least one of downstream or upstream of the first and second electrodes in a transporting direction, and the control unit controls the AC electric field generation unit in accordance with a detection result of the detector.

Abstract: Provided is an electromagnetic wave generator including: an electromagnetic wave generation section that generates an electromagnetic wave; a high-frequency voltage generation section that generates a voltage applied to the electromagnetic wave generation section; and a transmission line that electrically couples the electromagnetic wave generation section and the high-frequency voltage generation section to each other, in which the electromagnetic wave generation section includes a first electrode, a second electrode, a first conductor that electrically couples the first electrode and the transmission line to each other, and a second conductor that electrically couples the second electrode and the transmission line to each other, one of the first electrode or the second electrode is a reference potential electrode to which a reference potential is applied and the other is a high-frequency electrode to which a high-frequency voltage is applied, a minimum separation distance between the first electrode and the