Abstract: A housing for small pet animals includes a pedestal portion 1, a fixing side plate 3 uprightly attached to the pedestal portion 1, an activity wheel 5 with one side opened toward the fixing side plate 3 and the other side closed by closing members 52c. The wheel 5 is disposed above the pedestal portion 1 with the one side closed by the fixing side plate 3. The housing further includes a housing equipment immovably attached to the fixing side plate 3 and disposed in a housing space surrounded by the fixing side plate 3 and the activity wheel 5.

Abstract: A housing for small pet animals includes a pedestal portion 1, a fixing side plate 3 uprightly attached to the pedestal portion 1, an activity wheel 5 with one side opened toward the fixing side plate 3 and the other side closed by closing members 52c. The wheel 5 is disposed above the pedestal portion 1 with the one side closed by the fixing side plate 3. The housing further includes a housing equipment immovably attached to the fixing side plate 3 and disposed in a housing space surrounded by the fixing side plate 3 and the activity wheel 5.

Abstract: A thin-film structure processing device for processing a thin-film structure formed on a substrate comprising a liquefied high-pressure inert gas storage section storing the liquefied high-pressure inert gas, and a nozzle section for discharging liquefied inert gas stored by said liquefied high-pressure inert gas storage section into atmosphere pressure jetting jet flow including dry ice particles of inert gas to said thin-film structure, and wherein said nozzle section having the nozzle structure capable of forming the jet flow strong enough for grinding the thin-film composing said thin-film structure by jetting the jet flow of said inert gas to the thin-film structure.

Abstract: The disclosure relates to a cage for small domestic pet animals which provides space saving yet permits ready expansion in the event of pet population growth. The cage is of a hanging-up-on-the-wall type having a relatively small depth and width. It includes a rear wall having a plurality of attachment holes through which many accessories are attached to the rear wall. A plurality of openings are formed in the side walls to receive perforated blind plates for air penetration. The cage may comprise a primary and an auxiliary housing which are connected to each other through a tubular passage.

Abstract: A polymer composition or concentrate comprising:(A) an olefinic copolymer,(B) a copolymer of an olefin with a (meth)acrylate,(C) a poly(meth)acrylate, and(D) a surfactant, which is poor solvent for both components (A) and (C), which acts as a solubilizer or phase-stabilizer for the components (A) and (C), and which in combination with component (B), which has surface active properties, functions as a phase-stabilizer. The composition has a relatively low viscosity even at high polymer contents and is useful as a lubricating oil additive which improves the viscosity index of a lubricating oil formulation.