摘要:
An improved vibrating acuator for notifying the user of a call upon signal arrival by any of a buzzer, a speech, and a vibration, and a feeding mechanism thereof. The device has a high impact resistance by a magnetic yoke having a flange, a damper material is provided between a diaphragm and a cover to prevent generation of noise, and a hole is provided in the cover to change acoustic characteristics as required within the same frequency band. A feeding mechanism for ensuring electrical connection and a projecting electrical connection terminal are provided on the actuator side, and a conductive material abutting on the electrical connection terminal is provided as a feeding terminal electrically connected to a feeding section of a circuit board.
摘要:
An improved electromagnetic actuator having a coil (10) on which a current is impressed, a magnet (20) that forms a magnetic circuit across a magnetic gap (G) with a magnet yoke (21), and having a diaphragm (11) that vibrates when a high-frequency current is impressed, and a vibration plate (22) that vibrates when a low-frequency current is impressed, with these parts enclosed within a basket (3) and the coil (10) placed within the magnetic gap (G). As one invention, a radially oriented magnets, a vibration plate with a double-suspension structure, and a bottom plate of magnetic shielding material are placed in the basket to suppress the leakage of magnetic flux. As an invention to further improve the frequency characteristics by means of the mounting structure of the electromagnetic actuator, elastic packing (5, 7) is sandwiched between the basket of the electromagnetic actuator and the housing case of the portable electronic equipment, and also between the basket of the electromagnetic actuator and the mounting.
摘要:
The crystal plane in the interior of the diamond substrate has a curvature higher than 0 km -1 and equal to or lower than 1500 km -1 by preparing a base substrate, forming a plurality of pillar-shaped diamonds formed of diamond single crystals on one side of the base substrate, causing diamond single crystals to grow from tips of each pillar-shaped diamond, coalescing each of the diamond single crystals grown from the tips of each pillar-shaped diamond to form a diamond substrate layer, separating the diamond substrate layer from the base substrate, and manufacturing the diamond substrate from the diamond substrate layer.
摘要:
[PROBLEMS] To provide a hard wrist watch case having a structure where cracking or chipping incident to attachment/detachment of a spring rod for supporting a watch band does not take place at the leg of a case frame body by enhancing decorativeness and rigidity of the hard wrist watch case through simple alteration of configuration, and having a back lid fixing structure where brazing of a screw bush to the case frame body is not required. [MEANS FOR SOLVING PROBLEMS] An impact resistant metallic decoration component provided with spring rod stop holes at the opposite ends and a screw latch component like a projection piece are fitted, respectively, to a groove and a cavity provided in the side faces of the case frame body on the three o'clock side and the nine o'clock side, and buried in through holes provided at the leg of the case frame body such that the stop hole of the spring rod is exposed to the inner wall face of the band fixing space at the leg. When a back lid is fixed, a screw for latching the back lid is screwed into the screw hole of the screw latch component arranged at the cavity of the case frame body thus securing the back lid to the case frame body. Similarly, the spring rod is stretched between the stop holes of the decoration component when a wrist bandis fixed.
摘要:
[Purpose] In the field of sapphire substrates used chiefly for epitaxial growth of nitride semiconductor layers, to provide a sapphire substrate of which the shape and/or amount of warping can be controlled efficiently and precisely and of which substrate warping that occurs during layer formation can be suppressed and substrate warping behavior can be minimized, to provide nitride semiconductor layer growth bodies, nitride semiconductor devices, and nitride semiconductor bulk substrates using such substrates, and to provide a method of manufacturing these products. [Means of Resolution] Reformed domain patterns are formed within a sapphire substrate and the warp shape and/or amount of warping of the sapphire substrate are controlled by means of multiphoton absorption by condensing and scanning a pulsed laser through a polished surface of the sapphire substrate. When nitride semiconductor layers are formed using sapphire substrates obtained by means of this invention, substrate warping during layer formation is suppressed and substrate warping behavior is minimized so that layer quality and uniformity are improved and the quality and yield of nitride semiconductor devices is increased.