Abstract: A method for easily and efficiently removing ruthenium complexes, which are generally difficult to remove, from a polymer, as well as a method for purifying a polymer that uses such a removal method are provided. A method for removing a metal, wherein a compound is added that is capable of coordination via a substitution of a ligand of a ruthenium complex, thereby precipitating another ruthenium complex, as well as a method for purifying a polymer that uses such a method.

Abstract: A method for easily and efficiently removing ruthenium complexes, which are generally difficult to remove, from a polymer, as well as a method for purifying a polymer that uses such a removal method are provided. A method for removing a metal, wherein a compound is added that is capable of coordination via a substitution of a ligand of a ruthenium complex, thereby precipitating another ruthenium complex, as well as a method for purifying a polymer that uses such a method.

Abstract: In the invention it is assumed that in a data recording operation, when the data recording is initiated, the data recording module writes the initial value of the file size in the new file attribute area of the directory, and when the data recording is ended, the data recording module writes the number of clusters as the file size in the new file attribute area. With this assumption, the FAT restoration module examines the file size written in the file attribute area, and distinguishes the first file for which the writing is normally terminated, from the second file for which the writing is not normally terminated. The FAT restoration module tracks the FAT chain of the first file and stores the file number of the first file in the map area corresponding to that FAT. Thereafter, the FAT restoration module tracks the FAT chain of the second file, and stores the file number of the second file in the map area corresponding to that FAT.

Abstract: In the invention it is assumed that in a data recording operation, when the data recording is initiated, the data recording module writes the initial value of the file size in the new file attribute area of the directory, and when the data recording is ended, the data recording module writes the number of clusters as the file size in the new file attribute area. With this assumption, the FAT restoration module examines the file size written in the file attribute area, and distinguishes the first file for which the writing is normally terminated, from the second file for which the writing is not normally terminated. The FAT restoration module tracks the FAT chain of the first file and stores the file number of the first file in the map area corresponding to that FAT. Thereafter, the FAT restoration module tracks the FAT chain of the second file, and stores the file number of the second file in the map area corresponding to that FAT.

Abstract: In a record and playback apparatus which codes information and records the information which is coded in a recording medium, the record and playback apparatus stores, in a predetermined management area provided in the recording medium, management information including at least one of time information (14b) on a time when the information is coded, index information (14c) which can be assigned to a recording unit, and a backward pointer (14d) for connecting recording units in a backward direction.

Abstract: A plurality of sets of three rolls are disposed around the periphery of the round continuously drawn from a mold and movable to the direction for or counter to the rounds, the sets being disposed along the drawing direction of the rounds. It is not necessary to replace the apparatus even when the size of the round is changed due to the replacement of molds, as the roll position are adjustable to the rounds.