Abstract: A powder replenisher includes a powder replenishment container to be replenished with powder. A pressure adjuster increases and decreases operating pressure applied to a variable capacity portion. A powder measuring instrument measures an amount of the powder that replenishes the powder replenishment container. A controller performs a precise replenishing mode in which, after the controller determines that the powder replenishment container is replenished with the powder in a predetermined amount, while the controller controls the powder measuring instrument to measure the amount of the powder inside the powder replenishment container, the controller controls the pressure adjuster to replenish the powder replenishment container with the powder in a target amount.

Abstract: A composition used to form an insulating part for insulating metal wiring in the electric and electronic devices having the metal wiring, and including a resin (A) having a group represented by formula (a1). The group represented by formula (a1) is bonded to a carbon atom in an aliphatic hydrocarbon group or an aromatic group of a main chain and/or a side chain of resin (A), and the carbon atom is located in a position other than a terminal of main chain of resin (A).

Abstract: A disk apparatus having an open inner structure and a collector liquid, which are housed in a hermetically sealed collecting container, are heated to a certain collecting temperature by a heating mechanism so as to permit a gas to be generated from the disk apparatus and to evaporate the collector liquid. The vapor of the collector liquid brings into contact with the disk apparatus and collects the gas generated from the disk apparatus and, then, the collecting container is cooled so as to liquefy the vapor that has collected the gas generated from the disk apparatus.

Abstract: A humidity controller arranged within a casing of an HDD includes a container housing a moisture absorbing agent, an air communication port that permits communication between the inner space of the casing and the inner space of the container, and an opening-closing control section configured to open-close the air communication port in accordance with the humidity inside the casing. The opening-closing control section is arranged in the container and includes a humidity sensitive member that is elongated or shrunk in accordance with the humidity to open-close the air communication port.

Abstract: A disk apparatus having an open inner structure and a collector liquid, which are housed in a hermetically sealed collecting container, are heated to a certain collecting temperature by a heating mechanism so as to permit a gas to be generated from the disk apparatus and to evaporate the collector liquid. The vapor of the collector liquid brings into contact with the disk apparatus and collects the gas generated from the disk apparatus and, then, the collecting container is cooled so as to liquefy the vapor that has collected the gas generated from the disk apparatus.

Abstract: A magnetic disk apparatus includes a casing having a substantially hermetic structure, which houses a magnetic disk, a motor, and a magnetic head. A filter is arranged within the casing. The filter includes an oxidizing agent containing oxidized metal components and serving to oxidize gaseous components, and a trapping agent subjected to the treatment with an alkali, for trapping the acidic gas oxidized by the oxidizing agent.

Abstract: A humidity controller arranged within a casing of an HDD includes a container housing a moisture absorbing agent, an air communication port that permits communication between the inner space of the casing and the inner space of the container, and an opening-closing control section configured to open-close the air communication port in accordance with the humidity inside the casing. The opening-closing control section is arranged in the container and includes a humidity sensitive member that is elongated or shrunk in accordance with the humidity to open-close the air communication port.

Abstract: Disclosed is a method of reclaiming a cathodic active material of lithium ion secondary batteries. The lithium ion secondary battery is broken and the casing and the content are separated to remove the casing from the content. The content is dissolved into a mineral acid to separate remaining non-dissolved content from the mineral acid to obtain a liquid containing the cathodic active material represented by the formula: LiMO2, where M is a transition metal element: cobalt, nickel and manganese. A lithium salt is added to the liquid, and the cathodic active material is recovered from the liquid in the form of a mixture of lithium compound and the transition metal compound, which is calcined and reclaimed into the cathodic active material.

Abstract: Disclosed is a method of recovering lithium from a battery containing lithium such as a lithium ion secondary battery. The lithium-containing member of the battery is dissolved with an acidic liquid, and an alkaline material is added to the obtained lithium solution to transform a transition metal which may be dissolved in the lithium solution into a metal hydroxide precipitation, whereby the metal hydroxide precipitate is separated from the lithium solution. The lithium solution is then dried to obtain a solid containing the lithium, and the lithium is eluted from the solid with a non-aqueous solvent. Retrieving lithium from the lithium eluate is accomplished by use of a cation exchanger.