Abstract: The present invention provides a binder for positive electrode of lithium ion battery which is excellent in workability at the time of producing a positive electrode, is excellent in charge and discharge characteristics such as cycle characteristics and rate characteristics, and enables to possible to produce a positive electrode having an extended cycle life, as well as the present invention provides a slurry for forming positive electrode mixture layer of lithium ion battery, a positive electrode for lithium ion battery, and a lithium ion battery, using the same.

Abstract: A file storage section stores source files without duplication. A management information storage section stores management information for managing the relationship between each program version and source files used by it and the sharing relationship between each source file and other program versions that share it. When a source file is read and then edited, a storage method determining section determines whether or not the version series of the source file is to be divided. When the source file is to be stored without dividing its version series, a storage processing section stores the results of edition in the file storage section as an update version of the same series as the original source file. When it is to be stored with its version series divided, the version series is divided and the source file is stored as a new version series. A management information control section updates the management information when the source file is stored.

Abstract: An apparatus and method wherein a pair of frame members each having four jacks and placed one upon another are provided with other jacks which are horizontally movable to change the relative position of the frame members, and the jacks are suitably operable sequentially to provide the frame members with a capacity to be moved freely within a dock, whereby a propeller or rudder for a large ship is held between a pair of scaffolds provided on the frame members and the article is then conveyed to the desired place and mounted in the desired position of the ship.