Abstract: A laser apparatus includes: a laser unit including a light source unit configured to change a frequency of laser light to be output; and a monitor unit configured to acquire a monitor value corresponding to a frequency equivalent amount corresponding to the frequency of the laser light; and a control unit configured to control the frequency of the laser light by supplying a control amount to the laser unit. The monitor unit at least includes: a first frequency filter and a second frequency filter; a first detection unit; and a second detection unit. The control unit is configured to acquire a target frequency, acquire a first ratio and a second ratio, set, as a monitor value corresponding to the frequency of the laser light, one of the first ratio, the second ratio, a third ratio, acquire a target value, and control the control amount.

Abstract: A test image printer of an inkjet printer causes a test image, including a mark with a predefined shape and usable to correct an image captured by an image capturing device, and a test pattern usable to inspect a plurality of nozzles, to be printed on a recording medium. An image capture controller controls the image capturing device to capture an image of the test image printed on the recording medium. A corrector compares the image of the mark captured by the image capturing device, to the predefined shape of the mark, to calculate a correction value, and corrects the image of the test pattern, captured by the image capturing device, based on the calculated correction value. An inspector inspects the plurality of nozzles based on the image of the test pattern corrected by the corrector.

Abstract: A wavelength-tunable light source device includes: a wavelength-tunable laser element including: a laser resonator having two reflecting mirrors having respective periodic peaks of reflection spectrums with respect to wavelength, cycles of the periodic peaks being different from each other; a gain unit in the laser resonator; and a plurality of control elements that control respective laser emission wavelengths in response to electric power supplied thereto; and a control unit that controls the electric power supplied to the control elements. Further, the control elements set, on a basis of the electric power, respective at least wavelength positions where the reflection spectrums of the two reflecting mirrors peak, and the control unit controls the control elements by setting, as sequential control targets, wavelength corresponding control set values, which correspond to discrete intermediate wavelengths between a current laser emission wavelength and a target wavelength.

Abstract: A wavelength-tunable laser device includes: a wavelength-tunable light source part; an optical filter; a light receiving element; and a control device. Further, the control device includes: a monitor value calculating part configured to calculate a monitor value; a storage part configured to store wavelength control information; a target value calculating part configured to calculate a control target value; and a wavelength control part configured to control the wavelength of the laser beam to be the target wavelength, and the wavelength control information is information in which a wavelength, a control reference value, and mode identification information are associated with each other, and the target value calculating part calculates the control target value based on the wavelength control information stored in association with the same mode identification information when the same wavelength as the target wavelength is different from the wavelength control information stored in the storage part.

Abstract: The present invention intends to suppress energy consumption while making it possible to generate superheated steam in a short period of time. Specifically, the present invention includes: a steam generating part that generates steam; a superheated steam generating part that generates superheated steam; an on/off valve that switches between supplying the steam to the superheated steam generating part or stopping the supply; and a control device that sends a control signal to the switching mechanism for switching between a waiting state in which the steam generating part generates the steam and the supply of the steam is stopped, and a supply state in which the steam is supplied to the superheated steam generating part. When switching from the waiting state to the supply state, the control device gradually increases an amount of the steam supplied to the superheated steam generating part.

Abstract: The present invention intends to highly accurately control a temperature of superheated steam at a high response speed, and provides a superheated steam generator that inductively heats a heating metal body in contact with steam using an induction coil, and thereby heats the steam in contact with the heating metal body to generate superheated steam. In addition, a frequency of an AC power supply connected to the induction coil is 50 Hz or 60 Hz, and a thickness between an induction coil side surface of the heating metal body facing toward the induction coil and a steam contact surface of the heating metal body in contact with the steam is 10 mm or less.

Abstract: The present invention is intended to inform a user of a maintenance timing for a superheated steam generator. The present invention includes an induction heating type or electrically heating type superheated steam generation section and an informing section. The superheated steam generation section generates superheated steam by heating steam. The informing section transmits maintenance information by employing, as a parameter, an operating temperature of the superheated steam generation section and an operating time at the operating temperature.

Abstract: An electronic module is provided with a circuit board including a central-axis insertion hole and composed by laminating a multitude of wiring layers; and a core formed of a magnetic material and inserted through the central-axis insertion hole, wherein the circuit board includes a plurality of coil wiring patterns formed in positions of the respective wiring layers surrounding the core insertion hole; and edge-face through-holes formed on inner wall surfaces of the central-axis core insertion hole to electrically connect the plurality of coil wiring patterns to form a coil, the central-axis insertion hole has a octagon shape in plan view, concave portions are disposed on the inner wall surfaces corresponding to sides of the octagon shape, and the edge-face through-holes are formed in the concave portions.

Abstract: The present invention for eliminating a need for a temperature detecting element adapted to measure the temperature of a roll main body provides an induction heated roll apparatus including: a roll main body; a magnetic flux generating mechanism including an iron core and a winding; and a power supply circuit provided with a control element adapted to control AC current or AC voltage. The apparatus calculates the temperature of the roll main body using an AC current value obtained by an AC current detecting part, an AC voltage value obtained by an AC voltage detecting part, a power factor obtained by a power factor detecting part, a winding resistance value of the winding, and an excitation resistance obtained from characteristics of a relationship between a magnetic flux density and an excitation resistance of a magnetic circuit including the iron core and the roll main body as parameters.

Abstract: The present invention intends to eliminate the need for a temperature detecting element adapted to measure the temperature of a roll main body in an induction-heated roller apparatus, and includes an impedance calculation part that calculates the impedance of a winding, a relational data storage part that stores relational data indicating the relationship between the impedance of the winding and the temperature of the roll main body, and a roll temperature calculation part that calculates the temperature of the roll main body from the impedance obtained by the impedance calculation part and the relational data stored in the relational data storage part.

Abstract: In a message delivery system, after completion of receiving a package, or after a deliverer has completed verification of the identity of a recipient of a package, a message associated with the package can be delivered to the recipient. For example, a message delivery system includes: a storage unit (130) that stores a message, a receiver of the message, information on a package associated with the message, and a delivery date and time at which the message is to be delivered; a receiving unit (1211) that receives identity verified data which indicates that a deliverer has verified the identity of the recipient upon delivery of the package; and a delivery unit (1212) that delivers the message associated with the package to the receiver after receiving the identity-verified data, or if no such identity verified data has been received even after the delivery date and time have passed.

Abstract: An electronic module is provided with a circuit board including a central-axis insertion hole and composed by laminating a multitude of wiring layers; and a core formed of a magnetic material and inserted through the central-axis insertion hole, wherein the circuit board includes a plurality of coil wiring patterns formed in positions of the respective wiring layers surrounding the core insertion hole; and edge-face through-holes formed on inner wall surfaces of the central-axis core insertion hole to electrically connect the plurality of coil wiring patterns to form a coil, the central-axis insertion hole has a octagon shape in plan view, concave portions are disposed on the inner wall surfaces corresponding to sides of the octagon shape, and the edge-face through-holes are formed in the concave portions.

Abstract: The present invention intends to highly accurately control a temperature of superheated steam at a high response speed, and provides a superheated steam generator that inductively heats a heating metal body in contact with steam using an induction coil, and thereby heats the steam in contact with the heating metal body to generate superheated steam. In addition, a frequency of an AC power supply connected to the induction coil is 50 Hz or 60 Hz, and a thickness between an induction coil side surface of the heating metal body facing toward the induction coil and a steam contact surface of the heating metal body in contact with the steam is 10 mm or less.

Abstract: The present invention intends to suppress energy consumption despite making it possible to generate superheated steam in a short period of time. Specifically, the present invention includes: a steam generating part that generates steam; a superheated steam generating part that generates superheated steam; and an on/off valve that switches the supply of the steam to the superheated steam generating part or the stop of the supply, wherein the on/off valve switches the supply of the steam or the stop of the supply, and thereby switching is performed between a waiting state that is a state where the steam generating part generates the steam and a state where the supply of the steam is stopped, and a supply state where the steam is supplied to the superheated steam generating part.

Abstract: An object of this invention is to detect breakage of a conductor tube before it happens and to prevent leakage of the heated fluid. More concretely, this invention is a fluid heating device that applies heat to a fluid that flows in the conductor tube of a helical shape by applying induction heat to the conductor tube and that comprises an electrical connecting member that constitutes a short circuit by electrically connecting each of required portions of the conductor tube, and a potential measuring instrument that measures a potential of the conductor tube.

Abstract: The present invention for eliminating a need for a temperature detecting element adapted to measure the temperature of a roll main body provides an induction heated roll apparatus including: a roll main body; a magnetic flux generating mechanism including an iron core and a winding; and a power supply circuit provided with a control element adapted to control AC current or AC voltage. The apparatus calculates the temperature of the roll main body using an AC current value obtained by an AC current detecting part, an AC voltage value obtained by an AC voltage detecting part, a power factor obtained by a power factor detecting part, a winding resistance value of the winding, and an excitation resistance obtained from characteristics of a relationship between a magnetic flux density and an excitation resistance of a magnetic circuit including the iron core and the roll main body as parameters.

Abstract: The present invention intends to detect the temperature of an induction coil without providing a temperature sensor inside a roll main body, and includes: a DC voltage application part that controls a DC power supply to intermittently apply DC voltage to the induction coil; a resistance value calculation part that calculates a resistance value of the induction coil from the DC voltage applied by the DC voltage application part and DC current flowing through the induction coil; a relational data storage part that stores relational data indicating a resistance value versus temperature relationship between the resistance value of the induction coil and the temperature of the induction coil; and a coil temperature calculation part that calculates the temperature of the induction coil from the resistance value obtained by the resistance value calculation part and the resistance value versus temperature relationship indicated by the relational data.

Abstract: The present invention intends to eliminate the need for a temperature detecting element adapted to measure the temperature of a roll main body in an induction-heated roller apparatus, and includes an impedance calculation part that calculates the impedance of a winding, a relational data storage part that stores relational data indicating the relationship between the impedance of the winding and the temperature of the roll main body, and a roll temperature calculation part that calculates the temperature of the roll main body from the impedance obtained by the impedance calculation part and the relational data stored in the relational data storage part.

Abstract: An optical switch includes: an input-output port with three or more ports arranged along a direction; a modulator that includes an incident layer, a reflective layer, and a modulation layer disposed between these layers, spatially modulates light entering the incident layer from any port of the input-output port, and outputs the light spatially-modulated toward any of other ports of the input-output port; and a condensing lens that optically couples the input-output port and the modulator, wherein x2?2x1+x0 holds where: a coordinate axis is along the direction of the input-output port and an optical axis of the lens is set as an origin of the coordinate axis; x0, x1, and x2 respectively are coordinates of a first port to/from which light is input/output, and a second port and a third port from/to which light input to or output from the first port is output/input; and x1,x2>0.

Abstract: A method in support of potential future delivery of digital content items over a data network includes obtaining at a server over the data network at least one digital content item for potential future delivery and delivery metadata pertaining to potential future delivery of the digital content item. The delivery metadata includes at least one recipient and a monitoring interval. The digital content item is stored by a processor of the server, and, during the monitoring interval, a user account associated with the digital content item is monitored by the processor for an occurrence of an inactivity benchmark. Upon a lapse of the monitoring interval without an occurrence of the inactivity benchmark, the digital content item is delivered to the at least one recipient. A system can be constructed to implement the method described herein.