Abstract: A holder with includes: a holder body formed by molding a resin material, a contact surface on the holder body for receiving an operating object to be held on the holder body, a grip portion on the holder body at a position apart from the contact surface for being gripped by an operator, and an electric conductor extending from the contact surface to the grip portion.

Abstract: A spot-type DC ionizer placed above a measurement plate of a charge plate monitoring device including a grid using a metal net attached to a nozzle opening. Compressed air is set at a value, and a use distance between the measurement plate and the nozzle opening is set. The ionizer measures an ion balance and variation for comparison with threshold values, and if the ion balance and variation are equal to or lower than respective threshold values, an accepted determination is made. Otherwise, a failed determination is made and a static elimination time is measured. If the static elimination time is longer than a threshold time, the static elimination time is measured while air pressure is increased, and an air pressure with the static elimination time equal to or shorter than the threshold time is determined as an optimal air pressure with the set use distance.

Abstract: A holder with includes: a holder body formed by molding a resin material, a contact surface on the holder body for receiving an operating object to be held on the holder body, a grip portion on the holder body at a position apart from the contact surface for being gripped by an operator, and an electric conductor extending from the contact surface to the grip portion.

Abstract: An anti-static wrist band includes: a band, a first electrode supported on the band, a first conductive gel disposed on the first electrode, a second electrode supported on the band and insulated from the first electrode and the first conductive gel, and a second conductive gel insulated from the first electrode and the first conductive gel and disposed on the second electrode.

Abstract: A spot-type DC ionizer is placed above and apart from a measurement plate of a charge plate monitoring device. A grid using a metal net is attached to a nozzle opening. The pressure of compressed air is set at a predetermined value, and use distance between the measurement plate and the nozzle opening is set at a predetermined distance L. When ion balance and an ion balance variation are within threshold values, static elimination time is measured. If the static elimination time is longer than a threshold time, the air pressure is increased until the static elimination time is equal to or shorter than a threshold time. In this manner, the optimal air pressure for a particular use distance is determined.

Abstract: A magnetic disk apparatus comprises an electrically conductive enclosure which accommodates at least a magnetic storage medium and a head for writing/reading information on the magnetic storage medium, an electrically conductive damping plate which is attached via an insulating member to one face of the electrically conductive enclosure in order to suppress vibration of the electrical conductive enclosure, and at least one electrical connecting member which electrically connects the damping plate to the electrically conductive enclosure.