Abstract: A dispersion/stirring apparatus that is capable of micronizing gas dispersed and stirred into a liquid in a tank without requiring a separate pump or a stirring device is provided. The rotation unit is provided with a flow path that opens at an inner diameter side as well as an outer diameter side of the rotation unit. The flow path is provided with a flow path expansion portion at which the flow path expands in the direction towards the outer diameter side of the rotation unit. The flow path expansion portion of the rotation unit has an effect similar to that of a Venturi tube and thereby enables micronization of a gas. Rotation of the rotation unit produces a pump effect and a stirring effect, thereby eliminating the need of providing a separate pump or stirring device.

Abstract: A key backlight controller, a portable terminal, a key backlight control method, and a program which reduce a consumption current during key operation. A key backlight controller (100) comprises a key input section (120) for inputting data by key depression, a key backlight section (140) for illuminating the key input section (120), a time measurement section (130) for clocking a certain period of time from the key depression, and a key backlight operation control unit (110) for performing a key backlight control to turn off the backlight section (140) for a certain period of time during which the time measurement section (130) measures when the key depression by the key input section (120) is detected while the backlight operates.

Abstract: An earphone connection cable and a portable device for suppressing sound signal superposing between an R earphone and an L earphone or between an earphone and a microphone are provided. A connection cable includes an R earphone 116a and an L earphone 116b at tips and contains an antenna element 115, a ground potential line 114, an R sound signal line 108a, an L sound signal line 108b, an inductance 111, and a second inductance group, and the ground potential line of the R earphone 116a and the L earphone 116b is connected to the antenna element 115, thereby suppressing sound signal superposing between the R earphone and the L earphone.