Abstract: A molten iron refining method having, an auxiliary material, and an oxidizing gas supplied through a top-blowing lance, to a cold iron source and molten pig iron that are contained/fed in a converter-type vessel, and molten iron is subjected to a refining process. A pre-charged cold iron source is charged into the converter-type vessel at an amount not larger than 0.15 times. A furnace-top-added cold iron source that's part or all of the cold iron source and added from a furnace top is fed during the refining process. A burner at a leading end of the top-blowing lance that spray holes through which a fuel and a combustion-supporting gas are ejected. During the refining process, a powdery auxiliary material processed into powder that's part of the auxiliary material is blown in, to pass through a flame formed by the burner.

Abstract: Provided is a fast-eluting three-dimensionally molded object, which is formed by fused deposition modeling type three-dimensional molding and quickly elutes an active component. The fast-eluting three-dimensionally molded object is formed by the fused deposition modeling type three-dimensional molding and includes an active component, a water-soluble thermoplastic polymer, a water-soluble sugar and/or a water-soluble sugar alcohol, and a plasticizer component. The fast-eluting three-dimensionally molded object has an elution rate of the active component of 80% or higher within 85 minutes by a dissolution test method in the Japanese Pharmacopoeia, Sixteenth Edition.

Abstract: Provided is a fast-eluting three-dimensionally molded object, which is formed by fused deposition modeling type three-dimensional molding and quickly elutes an active component. The fast-eluting three-dimensionally molded object is formed by the fused deposition modeling type three-dimensional molding and includes an active component, a water-soluble thermoplastic polymer, a water-soluble sugar and/or a water-soluble sugar alcohol, and a plasticizer component. The fast-eluting three-dimensionally molded object has an elution rate of the active component of 80% or higher within 85 minutes by a dissolution test method in the Japanese Pharmacopoeia, Sixteenth Edition.

Abstract: Provided is a tablet which can be easily pinched even for an elderly person or a patient who has a limited range of joint motion, and which is hard to roll even if slipping out of a hand. The tablet 1 includes a three-dimensional tablet body portion 10 and a protruding portion 20 protruding outward in a longitudinal direction of the tablet body portion 10 continuously from a side surface of the tablet body portion 10. The protruding portion 20 has a first protruding portion 21 and a second protruding portion 22 protruding in opposite directions from each other via the tablet body portion 10. Each of the first protruding portion 21 and the second protruding portion 22 protrudes from the upper portion and the lower portion of the side surface of the tablet body portion 10.

Abstract: The optical scanning device includes a photoreceptor, a light source unit, a plurality of correction value storage units and a light quantity correction unit. The scanning position in the photoreceptor is divided into a plurality of areas. The target correction amount of the light quantity is predetermined so as to change according to the scanning position. The correction value storage unit stores the light quantity correction value that is associated with each of the areas. The light quantity correction unit corrects the light quantity during scanning by using the light quantity correction value corresponding to the scanning position. The length of each of the areas is shorter in an area in which the variation in the target correction amount per unit length is greater. The light quantity correction value is determined based on the target correction amount according to the area corresponding to the light quantity correction value.

Abstract: An image forming apparatus includes a correction control unit and a correction amount adjusting unit. The correction control unit performs a phase correction process of changing a drive frequency of a driver for driving and rotating a rotating polygon mirror having a rotational phase difference judged not to coincide by a predetermined correction amount and driving the driver for a period corresponding to a specified clock number by a drive clock signal of the changed drive frequency if a rotational phase difference of another rotating polygon mirror does not coincide with a reference rotational phase difference. The correction amount adjusting unit reduces the predetermined correction amount by a predetermined specified amount and causes the correction control unit to perform the phase correction process again if the rotational phase difference does not coincide with a reference rotational phase difference after the phase correction process is performed.

Abstract: The optical scanning device includes a photoreceptor, a light source unit, a plurality of correction value storage units and a light quantity correction unit. The scanning position in the photoreceptor is divided into a plurality of areas. The target correction amount of the light quantity is predetermined so as to change according to the scanning position. The correction value storage unit stores the light quantity correction value that is associated with each of the areas. The light quantity correction unit corrects the light quantity during scanning by using the light quantity correction value corresponding to the scanning position. The length of each of the areas is shorter in an area in which the variation in the target correction amount per unit length is greater. The light quantity correction value is determined based on the target correction amount according to the area corresponding to the light quantity correction value.

Abstract: An image forming apparatus includes a correction control unit and a correction amount adjusting unit. The correction control unit performs a phase correction process of changing a drive frequency of a driver for driving and rotating a rotating polygon mirror having a rotational phase difference judged not to coincide by a predetermined correction amount and driving the driver for a period corresponding to a specified clock number by a drive clock signal of the changed drive frequency if a rotational phase difference of another rotating polygon mirror does not coincide with a reference rotational phase difference. The correction amount adjusting unit reduces the predetermined correction amount by a predetermined specified amount and causes the correction control unit to perform the phase correction process again if the rotational phase difference does not coincide with a reference rotational phase difference after the phase correction process is performed.