Abstract: A method for manufacturing a gear includes rotating a workpiece around a first axis, and rotating a plurality of cutting blades arranged annularly around a second axis skew to the first axis around the second axis. The method further includes, while causing the workpiece and the cutting blades to perform relative movement in a direction parallel to the first axis at a speed synchronized with a rotational speed of the workpiece, forming a helical tooth groove in an outer peripheral surface of the workpiece by the cutting blades. In a cross section perpendicular to the first axis, a diameter of a rolling circle in which an outline of the cutting blades and a target online of the gear make rolling contact with each other is larger than a diameter of a tooth depth center circle.

Abstract: A muscle enhancer containing a polyamine and a branched-chain amino acid as active ingredients. The polyamine may be one or more of putrescine, spermidine, and spermine, and may be derived from a yeast belonging to the genus Saccharomyces. The muscle enhancer may also comprise a crystalline polysaccharide. The muscle enhancer may be present in a food or a drink.

Abstract: A body fat reducer containing a polyamine and a branched-chain amino acid as active ingredients. The polyamine may be one or more of putrescine, spermidine, and spermine, and may be derived from yeast. The body fat reducer may also comprise a crystalline polysaccharide. The body fat reducer may be present in a food or a drink.

Abstract: According to the embodiments, the controller includes a first receiving unit and a second receiving unit, and is capable of controlling a device to be controlled. The controller is in a first mode when in a first action state prior to the first receiving unit receiving a first operation, and the controller transitions to a second mode when the first receiving unit receives the first operation. The second receiving unit is in the first optical state in the first action state. The second receiving unit is in a second optical state in a second action state prior to the second receiving unit receiving a second operation in the second mode. The second receiving unit is in a third optical state in a third action state in which the second receiving unit has received the second operation in the second mode. The second optical state differs from the second optical state. The third optical state differs from the first optical state and differs from the third optical state.

Abstract: According to the embodiments, the controller includes a first receiving unit and a second receiving unit, and is capable of controlling a device to be controlled. The controller is in a first mode when in a first action state prior to the first receiving unit receiving a first operation, and the controller transitions to a second mode when the first receiving unit receives the first operation. The second receiving unit is in the first optical state in the first action state. The second receiving unit is in a second optical state in a second action state prior to the second receiving unit receiving a second operation in the second mode. The second receiving unit is in a third optical state in a third action state in which the second receiving unit has received the second operation in the second mode. The second optical state differs from the second optical state. The third optical state differs from the first optical state and differs from the third optical state.

Abstract: An air mattress for a bed, placed on a plurality of bottoms including a back bottom and used for the bed that performs a back raising operation for raising the back bottom, including air cells extending to a first direction and being arranged in parallel in a second direction; a first unit capable of inflating and deflating each of the air cells; and, a controller configured to control to alternately inflate and deflate the air cells by successively increasing and decreasing a pressure of air to be supplied to each of the air cells. The first unit inflate and deflate the air cells by n lines independent from each other, where n is equal to or greater than 3, and the controller controls inflation and deflation of air cells of one line during at least a part of a period in which a back bottom is being raised.

Abstract: A combined gear cutting apparatus includes a workpiece drive portion, a first processing portion holding and moving a first tool to a processing position for a workpiece, a second processing portion holding and moving a second tool to a processing position for the workpiece, and a control portion which includes a storage portion storing workpiece information indicating a configuration of the workpiece before first processing is performed, first tool information, second tool information and relative position information. The control portion includes a tooth groove configuration calculation portion calculating tooth groove configuration information of the workpiece based on the first tool information, the workpiece information and the relative position information obtained when the first processing is completed.

Abstract: An air mattress for a bed, placed on a plurality of bottoms including a back bottom and used for the bed that performs a back raising operation for raising the back bottom, including air cells extending to a first direction and being arranged in parallel in a second direction; a first unit capable of inflating and deflating each of the air cells; and, a controller configured to control to alternately inflate and deflate the air cells by successively increasing and decreasing a pressure of air to be supplied to each of the air cells. The first unit inflate and deflate the air cells by n lines independent from each other, where n is equal to or greater than 3, and the controller controls inflation and deflation of air cells of one line during at least a part of a period in which a back bottom is being raised.

Abstract: For each air cell, air is supplied and discharged through one of three lines independent of one another, every third cell being connected to the common line. The control unit controls inflation and deflation of air cells in turn in such an alternate manner that first the pressure of air in the air cells on the first line is increased and decreased, secondly the pressure of air in the air cells on the second line is increased and decreased, then the pressure of air in the air cells on the third line is increased and decreased. Thereafter, when the back tilt angle of the back bottom has reached a predetermined angle or greater, the control unit increases the pressure of air cells whose pressure is being lowered at that moment so as to produce an inflated mode similar to that of the other air cells. Then, while the back bottom is being raised, the control unit performs an inflation and deflation control of individual lines alternately on a cycle shorter than that in a normal control mode.

Abstract: A combined gear cutting apparatus includes a workpiece drive portion, a first processing portion holding and moving a first tool to a processing position for a workpiece, a second processing portion holding and moving a second tool to a processing position for the workpiece, and a control portion which includes a storage portion storing workpiece information indicating a configuration of the workpiece before first processing is performed, first tool information, second tool information and relative position information. The control portion includes a tooth groove configuration calculation portion calculating tooth groove configuration information of the workpiece based on the first tool information, the workpiece information and the relative position information obtained when the first processing is completed.

Abstract: For each air cell, air is supplied and discharged through one of three lines independent of one another, every third cell being connected to the common line. The control unit controls inflation and deflation of air cells in turn in such an alternate manner that first the pressure of air in the air cells on the first line is increased and decreased, secondly the pressure of air in the air cells on the second line is increased and decreased, then the pressure of air in the air cells on the third line is increased and decreased. Thereafter, when the back tilt angle of the back bottom has reached a predetermined angle or greater, the control unit increases the pressure of air cells whose pressure is being lowered at that moment so as to produce an inflated mode similar to that of the other air cells. Then, while the back bottom is being raised, the control unit performs an inflation and deflation control of individual lines alternately on a cycle shorter than that in a normal control mode.