Abstract: Provided is a method for producing nickel powder from a nickel ammine sulfate complex solution, comprising treatment steps of: (1) a seed crystal production step of producing nickel powder having an average particle size of 0.1 to 5 ?m; (2) a seed crystal addition step of adding the nickel powder obtained in the step (1) as seed crystals to form a mixed slurry; (3) a reduction step of forming a reduced slurry containing nickel powder formed by precipitation of a nickel component in the mixed slurry on the seed crystals; and (4) a growth step of performing solid-liquid separation to separate and recover the nickel powder as a solid phase component and then blowing hydrogen gas into a solution prepared by adding the nickel ammine sulfate complex solution to the recovered nickel powder to grow the nickel powder to form high purity nickel powder.

Abstract: Provided is a method for producing fine nickel powder used as suitable seed crystals for producing nickel powder from a solution containing a nickel ammine sulfate complex. The method for producing nickel powder sequentially includes: a mixing step of adding, to a solution containing a nickel ammine sulfate complex, a dispersant containing a sulfonate and an insoluble solid which is insoluble in the solution to form a mixed slurry; a reduction and precipitation step of charging a reaction vessel with the mixed slurry and then blowing hydrogen gas into the mixed slurry in the reaction vessel to reduce nickel complex ions contained in the mixed slurry to form nickel precipitate on a surface of the insoluble solid; and a separation step of separating the nickel precipitate on the surface of the insoluble solid from the surface of the insoluble solid to form nickel powder.

Abstract: A dynamic image recording button and a still image recording button are provided at the main unit of a movie camera. A magneto-optical recording medium is loaded in a slot. If the dynamic image recording button or the still image recording button is operated during a reproduction operation, the reproduction operation is interrupted in a state in which the mechanical drive (rotation) of the magneto-optical recording medium is sustained. At this point, a dynamic image signal or a still image signal obtained through a photographing operation performed at the camera unit is temporarily recorded in a buffer memory, and is written in the magneto-optical recording medium when a write in the magneto-optical recording medium becomes enabled. Instructions to record dynamic images and to record still images can be issued to the movie camera through a touch-panel provided on the screen of a liquid crystal display unit.

Abstract: A semiconductor device is provided, the semiconductor device having: a semiconductor chip; a wiring substrate which supports the semiconductor chip and is electrically connected to the semiconductor chip; a first metal plate which supports the wiring substrate; a second metal plate which is arranged between the wiring substrate and the first metal plate; a first bonding part which bonds the wiring substrate and the second metal plate; and a second bonding part which bonds the first metal plate and the second metal plate, and having a thickness of an outer circumferential part of the second metal plate being larger than a thickness of a center part of the second metal plate.

Abstract: Provided is a method for producing cobalt powder with high reaction efficiency by controlling the amount of added seed crystals when cobalt powder is produced from a solution containing a cobalt ammine sulfate complex. The method sequentially includes: a mixing step of adding, to the solution containing a cobalt ammine sulfate complex, cobalt powder as seed crystals in an amount of 1.5 times or more and 3.0 times or less the amount of cobalt contained in the solution and then adding a dispersant in an amount of 1.5% by weight to 3.0% by weight of the added seed crystals to form a mixture slurry; and a reduction and precipitation step of charging a reaction vessel with the mixture slurry and then blowing hydrogen gas into the mixture slurry to reduce cobalt complex ions contained in the mixture slurry to form cobalt precipitate on the surface of the seed crystals.

Abstract: A power module includes: a ceramic substrate that includes a principal surface and a back surface, and is provided with a plurality of metal wirings on the principal surface; a semiconductor chip mounted on any metal wiring of the plurality of metal wirings; and a resin part disposed around each of the plurality of metal wirings. Further, side faces of the metal wirings each have: a first region in which a plating film is formed; a second region that is positioned above the first region and that is a non-plating region; and a third region that is positioned between the first region and the second region and in which metal particles are formed. The resin part is bonded to the metal particles, the plating film, and the principal surface of the ceramic substrate.

Abstract: An image signal recording/reproduction apparatus having a generating apparatus that generates a dynamic image signal or a still image signal of a subject captured by an imaging apparatus; an operation apparatus that starts recording of the dynamic image signal or the still image signal generated by the generating apparatus; a recording apparatus that records the dynamic image signal or the still image signal into a recording medium through mechanical drive; a reproduction apparatus that reproduces the dynamic image signal or the still image signal recorded at the recording medium through mechanical drive; and a control apparatus that implements control so that the mechanical drive is sustained if the operation apparatus is operated while the dynamic image signal or the still image signal is being reproduced by the reproduction apparatus and so that the recording apparatus records the dynamic image signal or the still image signal in the recording medium.

Abstract: A power module includes: a ceramic substrate that includes a principal surface and a back surface, and is provided with a plurality of metal wirings on the principal surface; a semiconductor chip mounted on any metal wiring of the plurality of metal wirings; and a resin part disposed around each of the plurality of metal wirings. Further, side faces of the metal wirings each have: a first region in which a plating film is formed; a second region that is positioned above the first region and that is a non-plating region; and a third region that is positioned between the first region and the second region and in which metal particles are formed. The resin part is bonded to the metal particles, the plating film, and the principal surface of the ceramic substrate.

Abstract: Provided is a production method for producing coarse particles of high purity Co powder from a cobalt ammine sulfate complex solution using fine Co powder and using industrially inexpensive H2 gas.

Abstract: A method for producing nickel powder sequentially includes: a mixing step of adding, to a nickel ammine sulfate complex solution, an insoluble solid as seed crystals and a polyacrylate or lignosulfonate as a dispersant to form a mixed slurry; and a reduction and precipitation step of charging a reaction vessel with the mixed slurry and blowing hydrogen gas into the mixed slurry in the reaction vessel to reduce nickel complex ions in the mixed slurry to form nickel precipitate on the surface of the insoluble solid, wherein the amount of the dispersant added in the mixing step is controlled to control the number of the nickel powder obtained by formation of the nickel precipitate in the reduction and precipitation step.

Abstract: Provided are a method for producing nickel seed crystals that maintains and improves the quality of nickel powder at a low cost while suppressing production cost and environmental load in the production of nickel powder, by optimizing the amount of hydrazine added when producing fine nickel powder as seed crystals using hydrazine; and a method for producing nickel powder using the nickel seed crystals. The method for producing seed crystals used for producing hydrogen-reduced nickel powder, including adding, to an acid solution containing nickel ions that is maintained at a temperature of 50 to 60° C., hydrazine of 1 to 1.25 mol per 1 mol of a nickel component contained in the acid solution to produce the seed crystals.

Abstract: Provided is nickel powder obtained by adding seed crystals to a nickel ammine complex solution and performing hydrogen reduction reaction under high temperatures and high pressures, wherein the nickel powder does not produce dust during handling, and a container can be efficiently filled with the nickel powder. The method for producing nickel powder includes: adding seed crystals and a surfactant having a nonionic or anionic functional group to a solution containing a nickel ammine complex to forma mixed slurry; and subjecting the mixed slurry to hydrogen reduction under high temperature and high pressure conditions in a pressure vessel to obtain nickel powder from the mixed slurry.

Abstract: Provided is a system and a method which allow hydrogen to be produced both efficiently and in a stable manner when using exhaust gas produced by power generation as a heat source for the dehydrogenation reaction, controlling the temperature of the dehydrogenation reaction within an appropriate range.

Abstract: Provided a production method for reducing the content level of sulfur and carbon which are impurities in nickel powder to improve the quality of nickel powder produced by a complexing reduction method. The method of producing nickel powder having low carbon and sulfur concentrations includes: a complexing treatment of adding a complexing agent to a nickel sulfate aqueous solution to form a solution containing nickel complex ions; maintaining the solution containing nickel complex ions at a solution temperature of 150 to 250° C. in a pressure vessel and blowing hydrogen gas into the solution containing nickel complex ions to perform hydrogen reduction to produce nickel powder; washing the nickel powder with water; and then roasting the nickel powder washed with water in a mixed gas atmosphere of nitrogen and hydrogen.

Abstract: Provided are a method for producing nickel seed crystals that maintains and improves the quality of nickel powder at a low cost while suppressing production cost and environmental load in the production of nickel powder, by optimizing the amount of hydrazine added when producing fine nickel powder as seed crystals using hydrazine; and a method for producing nickel powder using the nickel seed crystals. The method for producing seed crystals used for producing hydrogen-reduced nickel powder, including adding, to an acid solution containing nickel ions that is maintained at a temperature of 50 to 60° C., hydrazine of 1 to 1.25 mol per 1 mol of a nickel component contained in the acid solution to produce the seed crystals.

Abstract: Provided is an efficient method for producing nickel powder from a solution containing a nickel ammine complex, the method including adding seed crystals to a solution containing a nickel ammine complex and subjecting the resulting mixture to hydrogen reduction under high temperatures and high pressures to produce nickel powder, which makes it possible to maintain the quality of the nickel powder produced and reduce the amount of the seed crystals used. The method for producing nickel powder is characterized by adding seed crystals and a dispersant having an anionic functional group to the solution containing a nickel ammine complex to form a mixture slurry, and subjecting the mixture slurry to pressurized hydrogen reduction treatment by blowing hydrogen into the mixture slurry in a high temperature and high pressure atmosphere to cause a reduction reaction, thereby reducing the nickel ammine complex in the mixture slurry to obtain nickel powder.

Abstract: Provided is a method for producing nickel powder from a nickel ammine sulfate complex solution, comprising treatment steps of: (1) a seed crystal production step of producing nickel powder having an average particle size of 0.1 to 5 ?m; (2) a seed crystal addition step of adding the nickel powder obtained in the step (1) as seed crystals to form a mixed slurry; (3) a reduction step of forming a reduced slurry containing nickel powder formed by precipitation of a nickel component in the mixed slurry on the seed crystals; and (4) a growth step of performing solid-liquid separation to separate and recover the nickel powder as a solid phase component and then blowing hydrogen gas into a solution prepared by adding the nickel ammine sulfate complex solution to the recovered nickel powder to grow the nickel powder to form high purity nickel powder.

Abstract: Provided is a method for producing fine nickel powder used as suitable seed crystals for producing nickel powder from a solution containing a nickel ammine sulfate complex. The method for producing nickel powder sequentially comprises: a mixing step of adding, to a solution containing a nickel ammine sulfate complex, an insoluble solid which is insoluble in the solution to form a mixed slurry; a reduction and precipitation step of charging a reaction vessel with the mixed slurry and then blowing hydrogen gas into the mixed slurry in the reaction vessel to reduce nickel complex ions contained in the mixed slurry to form nickel precipitate on a surface of the insoluble solid; and a separation step of separating the nickel precipitate on the surface of the insoluble solid from the surface of the insoluble solid to form nickel powder.

Abstract: Provided is a method for producing fine nickel powder used as suitable seed crystals for producing nickel powder from a solution containing a nickel ammine sulfate complex. The method for producing nickel powder sequentially includes: a mixing step of adding, to a solution containing a nickel ammine sulfate complex, a dispersant containing a sulfonate and an insoluble solid which is insoluble in the solution to form a mixed slurry; a reduction and precipitation step of charging a reaction vessel with the mixed slurry and then blowing hydrogen gas into the mixed slurry in the reaction vessel to reduce nickel complex ions contained in the mixed slurry to form nickel precipitate on a surface of the insoluble solid; and a separation step of separating the nickel precipitate on the surface of the insoluble solid from the surface of the insoluble solid to form nickel powder.

Abstract: A semiconductor device 20 has: a semiconductor chip 1; a connected member 5 connected to the semiconductor chip 1 via a solder alloy (lead-free solder alloy) 2; and an external terminal electrically connected to the semiconductor chip 1. The above-described solder alloy 2 of the semiconductor device 20 is composed of: Cu of 5 to 10 weight %; any one, two, or more of Bi of 1 weight % or more and 4 weight % or less, Sb of 1 weight % or more and less than 10 weight %, and In of 1 weight % or more and 4 weight % or less; and Sn as a residual.