Abstract: An electronic device of the present invention is an electronic device used around a neutralization target object, the electronic device includes: an electric part; an interconnection portion that transmits electric power of a high voltage power supply to the electric part; and a housing that accommodates the electric part and the interconnection portion, in which the electronic device includes at least one of a cover portion, which covers at least a part of the electric part and has a surface resistivity of equal to or higher than 104 ?/? and equal to or lower than 1011 ?/?, and the housing, which has a surface resistivity of equal to or higher than 104 ?/? and equal to or lower than 1011 ?/?.

Abstract: A charged particle emission device includes a pre-emission state detector configured to detect a pre-emission charged state which is a charged state of the charged object before charged particles are emitted, an emission time generator configured to generate an emission time based on a past emission time of charged particles and a charged state of the charged object after the emission, emission processor circuitry configured to emit charged particles to the charged object which is in the pre-emission charged state based on the generated emission time, a post-emission state detector configured to detect a post-emission charged state which is a charged state of the charged object after the charged particles are emitted, machine learning processor circuitry configured to cause a machine learning model to learn a correspondence among the pre-emission charged state, the post-emission charged state, and the emission time generated by the emission time generator.

Abstract: A charged particle emission device includes a pre-emission state detector configured to detect a pre-emission charged state which is a charged state of a charged object before the charged particles are emitted, a learned model configured to receive a charged state of a charged object and a control parameter related to a control amount used for control of the charged particles to be emitted to the charged object to generate an estimated charged state which is a charged state of the charged object after the charged particles are controlled under the control parameter and emitted, an estimated charged state generator configured to input the pre-emission charged state and a plurality of control parameters to the learned model to generate a plurality of estimated charged states corresponding to the pre-emission charged state and the plurality of control parameters.

Abstract: A static eliminator capable of replacing a discharge needle and improving maintainability of the eliminator is disclosed. The static eliminator comprises: an air-guiding duct having a tubular portion provided with an outer electrode and a boss portion; and an electric discharge module detachably mounted on the tubular portion, wherein ionized air is supplied to the air-guiding duct by a fan of an air blower. The electric discharge module has a holder fitted in a boss portion and a plurality of discharge electrodes attached to the holder so as to protrude toward the outer electrode in an outer-radial direction. When foreign substances or the like adhere to a tip of the discharge electrode or when the discharge electrode deteriorates, the electric discharge module is detached from the boss portion.

Abstract: In an ion generator comprising a discharge needle 2, an opposed electrode 3 opposite the discharge needle 2 and an AC high voltage power source 4, for generating positive and negative air ions by giving rise to a corona discharge when a high voltage is applied by the AC high voltage power source 4 between the discharge needle 2 and the opposed electrode 3, the AC high voltage power source 4 comprises a high frequency oscillator 7 and a piezoelectric transformer 9, and outputs a high frequency voltage. An insulator 5 is placed intervening between the high voltage output line 4a of the AC high voltage power source 4 and the discharge needle 2 to capacitance-couple them, and the discharge needle 2 is enabled to discharge electricity. Preferably, the surface of the opposed electrode 3 should be covered with an insulator. This enables the balance between positive and negative air ions and its stability to be improved while reducing the hardware configuration in size and weight.

Abstract: A static eliminator capable of replacing a discharge needle and improving maintainability of the eliminator is disclosed. The static eliminator comprises: an air-guiding duct having a tubular portion provided with an opposite electrode and a boss portion; and an electric discharge module detachably mounted on the tubular portion, wherein ionized air is supplied to the air-guiding duct by a fan of an air blower. The electric discharge module has a holder fitted in a boss portion and a plurality of discharge electrodes attached to the holder so as to protrude toward the opposite electrode in an outer-radial direction. When foreign substances or the like adhere to a tip of the discharge electrode or when the discharge electrode deteriorates, the electric discharge module is detached from the boss portion.