Abstract: A radio-frequency module includes amplifiers and, a transformer including a primary coil and a secondary coil, an antenna connection terminal, an inductor disposed in series between one end of the secondary coil and the antenna connection terminal, and a capacitor connected between a path connecting the one end of the secondary coil and the inductor and a ground. One end of the primary coil is connected to an output end of the amplifier, another end of the primary coil is connected to an output end of the amplifier, another end of the secondary coil is connected to the ground, and the secondary coil and the inductor are coupled to each other via magnetic field coupling.

Abstract: The present invention aims to provide a composition for a storage battery electrode and a pigment composition each containing a modified polyvinyl acetal resin that has excellent dispersing properties, adhesion, and stability over time and that is capable of preventing degradation caused by an electrolyte solution when used for an electrode of a storage battery, enabling the production of a high-power storage battery. Provided is a modified polyvinyl acetal resin including a chlorine atom-containing structural unit.

Abstract: A laser apparatus includes six first laser devices that output respective blue laser beams for preliminary heating of an object, and a second laser device that outputs an infrared laser beam for main heating of the object. At least one of a relative positional relationship and each of respective first irradiation positions of the blue laser beams is changeable, the relative positional relationship being a relative positional relationship between the respective first irradiation positions of the six first laser beams in the object and a second irradiation position of the infrared laser beam in the object.

Abstract: A belt transmission system comprises: a first pulley; a second pulley; a belt; and an automatic tensioner having a first tension pulley and a second tension pulley applying tension to a portion of the belt located at a tension side and a portion of the belt located at a slack side of the belt, and an arm. Force from the belt makes the first tension pulley and the second tension pulley rotate in the same direction. When the first tension pulley rotates in a direction tensioning the belt, the second tension pulley also rotates in a direction tensioning the belt.

Abstract: A belt transmission system includes a first pulley, a second pulley, and an automatic tensioner including a first tension pulley, a fixed member, an arm, and a second tension pulley. The arm is swingable about an axis of the fixed member. When the first or second pulley serves as a driving pulley, a torque at one of the first and second tension pulleys located on a slack side at a maximum torque is higher than a torque of the other one located on a tight side.

Abstract: A belt transmission system includes a first pulley, a second pulley, and an automatic tensioner including a first tension pulley, a fixed member, an arm, and a second tension pulley. The arm is swingable about an axis of the fixed member. When the first or second pulley serves as a driving pulley, a torque at one of the first and second tension pulleys located on a slack side at a maximum torque is higher than a torque of the other one located on a tight side.

Abstract: A belt transmission system comprises: a first pulley; a second pulley; a belt; and an automatic tensioner having a first tension pulley and a second tension pulley applying tension to a portion of the belt located at a tension side and a portion of the belt located at a slack side of the belt, and an arm. Force from the belt makes the first tension pulley and the second tension pulley rotate in the same direction. When the first tension pulley rotates in a direction tensioning the belt, the second tension pulley also rotates in a direction tensioning the belt.