Abstract: A high-frequency heating device according to the present disclosure includes a heating chamber, first electrode, second electrode, high-frequency power supply, and controller. The first electrode is an electrode disposed inside the heating chamber. The second electrode is an electrode disposed inside the heating chamber and faces the first electrode. The high-frequency power supply generates high-frequency electric power. The controller controls the high-frequency power supply. The controller controls heating of a heating target placed between the first and second electrodes by causing the high-frequency power supply to apply the high-frequency electric power between the first and second electrodes. The controller causes the high-frequency power supply to selectively perform the heating in a normal mode for heating the whole of the object and the heating in a protection mode for heating the object with prevention of local overheating of the object.

Abstract: An input device includes: a plurality of first sensor electrodes; and a plurality of second sensor electrodes. Furthermore, the plurality of first sensor electrodes and the plurality of second sensor electrodes are electrically disconnected. Additionally, the plurality of first sensor electrodes are disposed in a radial arrangement centered on a reference point. Moreover, the plurality of second sensor electrodes are disposed in a concentric circular arrangement centered on the reference point.

Abstract: An RF energy radiation device of this disclosure comprises: an oscillator; a power amplifier; a radiation element; a detector; and a controller. The oscillator generates an RF signal. The power amplifier amplifies the RF signal to output RF power. The radiation element radiates the RF power. The detector detects progressive wave power. The controller performs an RF power output control using a closed-loop control for setting an output set value of the RF power by a closed-loop and an open-loop control for setting the output set value of the RF power by an open-loop. In a burst operation alternately switching between a period of outputting the RF power and a period of stopping the RF power, the controller changes the RF power output control from the closed-loop control to the open-loop control when a specified condition for change is satisfied during the period of stopping the RF power.

Abstract: A single-tool step gauge provides for measuring or setting a preferred or desired height of a string above a surface of a stringed musical instrument, and includes a nut slot gauge, crown height gauge and string action gauge. The nut slot gauge includes a downwardly-extending tab, a first plurality of integrally-formed graduated length gauges that measure a nut slot height, and a first plurality of measurement indications corresponding to the first plurality of graduated length gauges. The crown height gauge includes a pair of feet, a second plurality of integrally-formed graduated length gauges that measure a fret crown height, and a second plurality of measurement indications corresponding to the second plurality of graduated length gauges. The string action gauge includes a base, a third plurality of graduated length gauges that measure a string action, and a third plurality of measurement indications corresponding to the third plurality of graduated length gauges.

Abstract: A single-tool step gauge provides for measuring or setting a preferred or desired height of a string above a surface of a stringed musical instrument, and includes a nut slot gauge, crown height gauge and string action gauge. The nut slot gauge includes a downwardly-extending tab, a first plurality of integrally-formed graduated length gauges that measure a nut slot height, and a first plurality of measurement indications corresponding to the first plurality of graduated length gauges. The crown height gauge includes a pair of feet, a second plurality of integrally-formed graduated length gauges that measure a fret crown height, and a second plurality of measurement indications corresponding to the second plurality of graduated length gauges. The string action gauge includes a base, a third plurality of graduated length gauges that measure a string action, and a third plurality of measurement indications corresponding to the third plurality of graduated length gauges.