Abstract: A method is for setting viewing limitation for selecting a viewing limitation mode from among a plurality of types of viewing limitation modes for reproducing on a reproducing device an audio/visual information recorded on an information recording medium. The method includes: displaying a first screen on a monitor for allowing a user to input a password; verifying the password input by the user; displaying a second screen on the monitor for allowing the user to select a desired viewing limitation mode from among the plurality of types of viewing limitation modes, when the password input by the user is verified.

Abstract: A disk device for recording required information in or reproducing recorded information from a disk type information recording medium including a read-in area, a user-data area and a read-out area and capable of recording genre of audiovisual information recorded in the user-data area in a block of the read-in area as a text data, includes: an input unit for inputting instructions and information related to a recording information in and reproducing information from the disk type information recording medium; and a control unit for executing a control for stopping reproduction of audiovisual information corresponding to a genre when kind information of the genre inputted by an inputting operation of the input unit and preliminarily recorded in a memory as genre data coincides with kind information of the genre read out from the read-in area during reproduction of information of the disk type information memory medium.

Abstract: A novel poly(arylene ether sulfone) having a sulfoalkoxy group, which has both of heat resistance and electroconductivity, is suitable as polymer electrolyte membranes used for high performance polymer electrolyte fuel cells, and does not use fluorine so that loads to the environment are small in the synthesis or disposal, a process of producing the same, and a polymer electrolyte membrane comprising the same. The poly(arylene ether sulfone) having a sulfoalkoxy group has a structural unit represented by the formula (1) mentioned hereinabove, and is produced by reacting a poly(arylene ether sulfone) having a hydroxyl group with a specific alkali metal compound and/or an organic base compound, followed by reacting with a specific sulfonating agent and then with a specific acid. A polymer electrolyte membrane is produced by film formation of the polymer.

Abstract: A novel poly(arylene ether sulfone) having a sulfoalkoxy group, which has both of heat resistance and electroconductivity, is suitable as polymer electrolyte membranes used for high performance polymer electrolyte fuel cells, and does not use fluorine so that loads to the environment are small in the synthesis or disposal, a process of producing the same, and a polymer electrolyte membrane comprising the same. The poly(arylene ether sulfone) having a sulfoalkoxy group has a structural unit represented by the formula (1) mentioned hereinabove, and is produced by reacting a poly(arylene ether sulfone) having a hydroxyl group with a specific alkali metal compound and/or an organic base compound, followed by reacting with a specific sulfonating agent and then with a specific acid. A polymer electrolyte membrane is produced by film formation of the polymer.

Abstract: A vacuum cleaner includes a vacuum cleaner body in which a rotating brush, a dust collecting unit and an electric blower unit are integrally attached to a suction opening casing in which a brush chamber is formed. A rodlike handle is connected to the vacuum cleaner body. The rodlike handle is formed by a hollow member, and a plurality of batteries are arranged in series in the hollow member and are covered with a heat contraction tube.

Abstract: A polyolefin of a high molecular weight is produced by using a catalyst comprising a transition metal compound represented by General Formula (1):