Abstract: An object of the present invention is to provide a heat storage composition excellent in slow flame retardance and a heat storage member excellent in the slow flame retardance. Another object of the present invention is to provide an electronic device including a heat storage member, and a manufacturing method of a heat storage member. The heat storage composition according to an embodiment of the present invention contains a heat storage material and a flame retardant, in which a specific condition A is satisfied. The heat storage member according to an embodiment of the present invention contains a heat storage material and a flame retardant, in which a specific condition C is satisfied.

Abstract: An electronic device includes a second control unit configured to determine which of a movement distance of the electronic device and an angle of the electronic device is calculated according to a state of a power supply of the electronic device and a use state that is detected by a use state detector that detects a use state of the electronic device by a user, calculates the movement distance or the angle of the electronic device based on a detection result of the distance/angle detector, and controls the power supply of the electronic device according to the calculation result, and in a case in which the power supply of the electronic device is OFF, the second control unit calculates the angle of the electronic device, and in a case in which the power supply of the electronic device is ON, the second control unit calculates the movement distance in a case in which the use state detector does not detect a state in which the user is using the electronic device.

Abstract: A print head having a plurality of printing elements is disposed in an opposing relationship to an opposing electrode, and a negative voltage is applied to the opposing electrode while the print head is grounded. As a result, appearance of a spark discharge can be prevented, thereby preventing damage to the printing elements an extraordinary scattering of ink while improving the safety of and assuring stabilized printing by the device.

Abstract: In a printing device including a recording electrode having a front end portion to which ink is supplied, and an opposite electrode arranged in opposed relation to the recording electrode, wherein the ink is electrostatically splashed toward the opposite electrode by an electric field created between the recording electrode and the opposite electrode; the improvement comprises a switch for conditioning the recording electrode and the opposite electrode at an earth potential under a non-printing or a print waiting condition. Under the non-printing or the print waiting condition, the switch is selected not to apply an electrostatic force to the ink present at the front end portion of the recording electrode, thereby preventing undue splash of the ink.

Abstract: The present invention provides an ink dot printer wherein an electrostatic field is produced between ends of needles and an electrode, and the needles are selectively actuated to cause ink sticking to the ends of the needles to fly with a Coulomb force thereby to form dots with ink thus flown on record paper which covers the electrode without contacting the needles with the record paper. By this construction, noises are signficantly reduced and the ends of the needles are not damaged while printing results of a high resolution can be obtained. In addition, a tapered configuration of the ends of the needles will facilitate separation of the ink from the needles, assuring the uniformity of dots in shape and size. In case a positive voltage is applied to the electrode while the needles are grounded, treatment for insulation can be performed easily, allowing production of printing heads with ease and at a reduced cost.