Abstract: A liquid ejecting head including a pressure generating chamber which is in communicating with a nozzle orifice, a piezoelectric element having an active portion which is supplied a drive signal and an inactive portion which is not supplied the drive signal, and a film wiring substrate including an active wiring layer which is electrically connected to an individual connecting terminal of the active portion and an inactive wiring layer which is electrically connected to an individual connecting terminal of the inactive portion.

Abstract: A liquid ejecting head including a pressure generating chamber which is in communicating with a nozzle orifice, a piezoelectric element having an active portion which is supplied a drive signal and an inactive portion which is not supplied the drive signal, and a film wiring substrate including an active wiring layer which is electrically connected to an individual connecting terminal of the active portion and an inactive wiring layer which is electrically connected to an individual connecting terminal of the inactive portion.

Abstract: A liquid ejecting head that includes a plurality of pressure generating chambers, a plurality of piezoelectric elements, and a film wiring substrate. The piezoelectric elements each have a lower electrode, a piezoelectric layer and an upper electrode. Each of the piezoelectric elements is provided in an area opposite to the associated pressure generating chamber. The wiring substrate includes wiring layers, each of which is electrically connected to the associated upper electrode so as to supply electricity to the piezoelectric element. The piezoelectric elements include active piezoelectric elements and inactive piezoelectric elements. Each of the active wiring layers is electrically connected to the associated active piezoelectric element. Each of the inactive wiring layers is electrically connected to the associated inactive piezoelectric element.

Abstract: A liquid ejecting head that includes a plurality of pressure generating chambers, a plurality of piezoelectric elements, and a film wiring substrate. Each of the pressure generating chambers is in communication with a nozzle orifice through which liquid is ejected. The piezoelectric elements each have a lower electrode, a piezoelectric layer and an upper electrode. Each of the piezoelectric elements is provided in an area opposite to the associated pressure generating chamber. The wiring substrate includes wiring layers, each of which is electrically connected to the associated upper electrode so as to supply electricity to the piezoelectric element. The piezoelectric elements include active piezoelectric elements and inactive piezoelectric elements. Each of the active piezoelectric elements, when a drive signal is supplied thereto, generates pressure fluctuation in liquid contained in the associated pressure generating chamber.

Abstract: The invention is a spindle motor including a rotor hub bearing a rotational load, lubricant-containing bearing systems rotatably supported by the rotor hub, and stator windings wound on a stationary member, so as to oppose the rotor magnet. At least a portion of the rotor hub is in a clean environment, with the motor substantially sealed by a sealing unit. The spindle motor has a leakage prevention unit which prevents the lubricant trying to leak out the bearing systems and out the motor, when centrifugal forces produced by a rotor hub rotating at a high speed are exerted on the lubricant.

Abstract: A slotless, brushless DC motor having thin, flat coils fixed to the inner surface of a thin insulating cover attached to the cylindrical inner surface of the stator core of the motor. The coil ends are bent and fixed to the insulating cover over the end faces of the stator core. The structure provides a reduced air gap increasing the rotor efficiency and a reduced axial length of the motor. The coils are arranged such that adjacent coils sides are in contact with each other and may be connected in a Y-configuration or a .DELTA.-configuration.

Abstract: An oscillating motor capable of 180.degree. displacement and return without return springs.