Abstract: The present invention provides a battery block that accommodates unit cells having higher capacities, and, even in case of abnormal heat generation in the unit cell, does not cause abnormal heat generation in the neighboring unit cells, thereby preventing a chain reaction of degradations and abnormalities of the accommodated unit cells. The battery block of the present invention includes a battery case having a minimum thickness section satisfying the relationship “K2/K1?K3?1”. K1 is the thermal conductance between the battery case and the unit cell. K2 is the thermal conductance of the minimum thickness section of the battery case between two neighboring holes for accommodating the respective unit cells. K3 is a ratio between the abnormal heat temperature of a reference cell and the ambient temperature causing abnormal heat generation in this cell.

Abstract: By irradiating laser light 20 obliquely onto a substrate 6, the laser soldering apparatus reduces the laser light passing through an insertion hole 61a in the substrate 6 and prevents damage to low-heat-resistance portions of a component 62 disposed on the rear surface side of the substrate 6. Moreover, the substrate 6 can be observed from a normal direction with a camera 23. Therefore, even if the insertion hole 61 for inserting a component lead or the like is provided in the substrate 6, the laser light does not leak out to the side of a component mounting surface 17 of the substrate 6.

Abstract: An exterior part (200) includes (a) a structure color generation portion (210) having a minute shape (structure color generation region (211)) formed therein, light in a visible light range being produced from the minute shape by a physical phenomenon such as interference or diffraction with the incidence of light, and (b) a resin portion (220) that is made of resin having a light transmitting property and serves as the outer surface of a product, (c) the structure color generation portion (210) and the resin portion (220) are formed by molding, and (d) the structure color generation portion (210) is made of resin different from the resin of the resin portion (220), and covered with the resin portion (220).

Abstract: Provided are a laser-bonded component and a production method for same that ensure sufficient bonding strength using little laser energy and which cause little increase in surrounding temperature. A nickel layer, being a surface layer, is formed having sufficient thickness on the upper surface of a copper plate that is uppermost amongst at least two superposed copper plates, a laser is irradiated from above the nickel layer, a re-solidification section formed by fusing and alloying the copper in the copper plates and the nickel in the nickel layer is formed through to inside the bottommost copper plate, and the copper plates are bonded together. The re-solidification section having high breaking strength is formed by the alloying of the nickel and the copper. As a result, the copper plates can be bonded with a small welding surface area and little laser energy.

Abstract: The present invention provides a cell block (100) including: a metal case including a plurality of pipe-shaped members; and a plurality of single cells (40) housed in each of the pipe-shaped members (30), wherein each of the pipe-shaped members (30) is joined at joining surfaces, and the pipe-shaped members (30) are joined and integrated. According to the present invention, a member for housing single cells is provided, wherein the housing member is molded with a high degree of accuracy and is capable of being manufactured at low cost and in a simple manner.

Abstract: An exterior part (100) has a first structural color region (111) formed by a first linear peak-valley pattern including multiple linear grooves arranged in X direction, and a second structural color region (112) formed by a second linear peak-valley pattern including multiple linear grooves arranged in Y direction. The widths, depths, and pitches of the linear grooves are dimensions enabling the generation of diffracted light including structural colors. In the first structural color region (111), surfaces inclined in X direction (3 o'clock or 9 o'clock direction) are formed. In the second structural color region (112), surfaces inclined in Y direction (0 o'clock or 6 o'clock direction) are formed.

Abstract: An exterior part (200) includes (a) a structure color generation portion (210) having a minute shape (structure color generation region (211)) formed therein, light in a visible light range being produced from the minute shape by a physical phenomenon such as interference or diffraction with the incidence of light, and (b) a resin portion (220) that is made of resin having a light transmitting property and serves as the outer surface of a product, (c) the structure color generation portion (210) and the resin portion (220) are formed by molding, and (d) the structure color generation portion (210) is made of resin different from the resin of the resin portion (220), and covered with the resin portion (220).

Abstract: On a triangular groove array structure 53 with a constant structure period, first structural color regions 51 and a second structural color region 52 are formed. The first structural color regions 51 are covered with a protective layer 54 having a refractive index N and the second structural color region 52 is directly exposed to an air layer 55. Variations in color development characteristics owing to the influence of the protective layer 54 can bring the pattern and character of the second structural color region 52 into relief with a contrast.

Abstract: By irradiating laser light 20 obliquely onto a substrate 6, the laser soldering apparatus reduces the laser light passing through an insertion hole 61a in the substrate 6 and prevents damage to low-heat-resistance portions of a component 62 disposed on the rear surface side of the substrate 6. Moreover, the substrate 6 can be observed from a normal direction with a camera 23. Therefore, even if the insertion hole 61 for inserting a component lead or the like is provided in the substrate 6, the laser light does not leak out to the side of a component mounting surface 17 of the substrate 6.

Abstract: When a core lens is introduced into a cavity, resin is injected into the cavity, and a resin layer is formed around the core lens, the core lens is centered by sandwiching the core lens between first and second bell clamp type holders and applying a load to the core lens, and the resin layer is molded by injecting the resin from the outer periphery of the core lens to the lens center of the core lens in the first and second bell clamp type holders.

Abstract: When a core lens is introduced into a cavity, resin is injected into the cavity, and a resin layer is formed around the core lens, the core lens is centered by sandwiching the core lens between first and second bell clamp type holders and applying a load to the core lens, and the resin layer is molded by injecting the resin from the outer periphery of the core lens to the lens center of the core lens in the first and second bell clamp type holders.

Abstract: There is provided a magnesium alloy molded product being excellent in corrosion resistance. The magnesium alloy molded product being excellent in corrosion resistance and capable of being easily recycled is manufactured by forming an aluminum layer on a surface of a magnesium alloy molded body and then forming an anticorrosive film layer on the surface of the aluminum layer. In addition, a magnesium alloy molded product being excellent in corrosion resistance and having a brilliant anticorrosive structure is manufactured by forming a transparent anticorrosive film consisting of an organic acid amine salt on a cut surface of a magnesium alloy molded body and then forming a transparent painted film on the transparent anticorrosive film.

Abstract: There are provided a painted structure of a magnesium alloy molded product having an aesthetic appearance, a painting method of forming the patented structure of the magnesium alloy molded product having an aesthetic appearance, and a casing fabricated using the magnesium alloy molded product. The painted structure of the magnesium alloy molded product has flow marks of which maximum depth is 100 &mgr;m and maximum opening width is 0.5 mm. An anticorrosive film is formed on a surface of the magnesium alloy molded product, and a painted film having an average surface roughness of 10 &mgr;m or more and a thickness of 80 &mgr;m or more is formed on a surface of the anticorrosive film.

Abstract: A magnesium alloy cast, featuring with few casting defects, having precipitation areas dispersed inside magnesium alloy grains is provided by melting magnesium alloy material in an oxygen-free atmosphere and cooling the molten magnesium alloy at a cooling rate in the 1-20K/sec range by the continuous casting for solidification.

Abstract: An article of magnesium or its alloy having a surface layer containing magnesium condensed phosphate and magnesium phosphate, which can be produced by treating an article of magnesium or its alloy with a treating liquid containing 1,000 to 20,000 ppm of alkaline metal ions, 1,000 to 50,000 ppm of condensed phosphate ions, and 100 to 20,000 ppm of borate ions, and having pH of at least 8. The treated article has good corrosion resistance, and a coating can be formed on the surface of the article with good adhesion.

Abstract: There are provided a painted structure of a magnesium alloy molded product having an aesthetic appearance, a painting method of forming the patented structure of the magnesium alloy molded product having an aesthetic appearance, and a casing fabricated using the magnesium alloy molded product. The painted structure of the magnesium alloy molded product has flow marks of which maximum depth is 100 &mgr;m and maximum opening width is 0.5 mm. An anticorrosive film is formed on a surface of the magnesium alloy molded product, and a painted film having an average surface roughness of 10 &mgr;m or more and a thickness of 80 &mgr;m or more is formed on a surface of the anticorrosive film.

Abstract: There is provided a magnesium alloy molded product being excellent in corrosion resistance. The magnesium alloy molded product being excellent in corrosion resistance and capable of being easily recycled is manufactured by forming an aluminum layer on a surface of a magnesium alloy molded body and then forming an anticorrosive film layer on the surface of the aluminum layer. In addition, a magnesium alloy molded product being excellent in corrosion resistance and having a brilliant anticorrosive structure is manufactured by forming a transparent anticorrosive film consisting of an organic acid amine salt on a cut surface of a magnesium alloy molded body and then forming a transparent painted film on the transparent anticorrosive film.

Abstract: A laser optical device includes a laser oscillator, a beam shaping optical device for shaping a laser beam emitted from the oscillator to form a shaped laser beam, and a plurality of incidence lenses arranged to make the portions of the shaped laser beam incident on the incidence lenses equal. The device further includes beam transmitting optical fibers for receiving laser beams into which the laser beam passed through the incidence lenses is divided.

Abstract: A laser sputtering apparatus includes a laser oscillator for emitting laser beams, a target-supporting member supporting a flat target thereon and being rotatable in a vacuum chamber while the target is inclined relative to the target-supporting member, a driving device for rotating the target-supporting member, a substrate-supporting member for supporting the substrate parallel with the target-supporting member, and an optical device for irradiating the target with the beams emitted by the laser oscillator.

Abstract: A polygon mirror includes a polygon base having a plurality of attaching surfaces, a plurality of base plates each of which is fixed to each of the attaching surfaces of the base and has a reflecting surface for reflecting a laser beam, a plurality of total reflection mirrors each of which is fixed onto each of the base plates, and a reflecting direction adjusting mechanism. The reflecting direction adjusting mechanism connects the base to the base plate for the adjustment of a direction along which the laser beam is reflected by the reflecting surface of the total reflection mirror with respect to the attaching surface of the base.