Abstract: The present invention provides a battery prevented from causing a short circuit between a positive and negative electrode plates and a method of manufacturing the battery. This battery comprises an electrode plate assembly having a plurality of positive electrode plates and a plurality of negative electrode plates which are alternately laminated with separators interposed one by one between them. Each of the positive electrode plates and the negative electrode plates is configured to be curved to the same side in a lamination direction.

Abstract: A ball includes a ball body having a spherical surface, and at least one projection extending from the surface of the ball body. The projection extends in such a manner that the projection forcibly separates a laminar boundary layer generated on the surface of the ball body, and transitions the laminar boundary layer to a turbulent boundary layer.

Abstract: A cooling structure for a working vehicle in which a shroud is attached to a radiator provided to a vehicle body, and an air-cooling fan is made face to an airflow opening of the shroud, wherein the shroud comprises a shroud body attached to the radiator, and an opening member having the airflow opening, and further comprises securing means capable of fixing the opening member to the shroud body, and of freely adjusting a fixing position of the opening member with respect to the shroud body, and a relative position between the air-cooling fan and the airflow opening of the shroud is made freely adjustable. With the configuration above, the sufficient amount of heat radiated by the radiator can be obtained without causing the disadvantages such as increased noise.

Abstract: In a nickel-metal hydride rechargeable battery comprising a positive electrode of nickel hydroxide and a negative electrode of hydrogen-absorption alloy, prolonged battery life is achieved by limiting the charge and discharge operations to be performed in the range of 20-60% of the hydrogen-absorption capacity of the hydrogen-absorption alloy.

Abstract: A washing apparatus that easily washes off metal impurities from a porous metal substrate used as an electrode plate core for an alkaline battery. The washing apparatus includes a liquid bath container which holds a solution for washing off the metal impurities. A guide guides movement of the porous metal substrate in the solution held in the liquid bath container. The porous metal substrate is wound into a hoop in a coil-shaped manner, and the guide guides the movement of a sheet portion of the porous metal substrate unwound from the hoop. A winding mechanism winds the sheet portion after being fed through the liquid bath container.

Abstract: A nickel-metal hydride secondary battery includes: a plurality of power generating elements each having a negative plate containing hydrogen absorbing alloy; a battery case provided with partition walls and a plurality of compartments arranged adjacently on both sides of each partition wall, each of the compartments accommodating each power generating element, and the compartments allowing gas intercommunication between compartments through communication holes formed in the partition walls; and at least one of safety valves placed on the battery case, the safety valves being less in number than the number of the compartments; wherein each of the communication holes has a hole sectional area per battery module capacity in a range 0.03 to 0.30 mm2/Ah.

Abstract: A nickel-metal hydride battery that reduces the amount of cobalt and improves battery durability. The battery includes a negative electrode formed from an AB5 hydrogen-absorbing alloy. The alloy includes an A element composed of Misch metal and a B element mainly composed of nickel. The nickel in the B element is partially replaced by at least one further element including cobalt. The alloy is formed to satisfy at least the conditions of a mol ratio of the B element relative to the A element being 5.25 or greater, the amount of cobalt for 1 mol of the A element being 0.15 mol to 0.25 mol, and the alloy having a half-width ratio, which indicates the ratio of a peak half-width of a (002) plane relative to a peak half-width of a (200) plane, of 1.3 to 1.7.

Abstract: The present invention provides a battery prevented from causing a short circuit between a positive and negative electrode plates and a method of manufacturing the battery. This battery comprises an electrode plate assembly having a plurality of positive electrode plates and a plurality of negative electrode plates which are alternately laminated with separators interposed one by one between them. Each of the positive electrode plates and the negative electrode plates is configured to be curved to the same side in a lamination direction.

Abstract: A method of manufacturing a hydrogen-absorption alloy electrode which comprises particles of a hydrogen-absorption alloy that comprises a rare earth element, Ni, Co and Al. The method comprises subjecting the hydrogen-absorption alloy particles to an alkaline treatment in a 10 to 50 weight % NaOH solution at 60 to 140 ° C. for 0.5 to 5 hours such that on the surface of the particles (amount of Al on surface/amount of Al in alloy)<(amount of Co on surface/amount of Co in alloy).

Abstract: A hydrogen absorbing alloy powder includes an intermetallic compound having an AB5 type crystal structure and containing La for an A site element and Ni for a B site element. The powder contains La by 20 wt % or more and metallic Ni by from 2.0 wt % to 10 wt %, and acicular or grain shape precipitates containing La(OH)3 are deposited on a surface thereof. The powder has an intensity ratio P2/P1 satisfying a relation: P2/P1?0.02, where P1 is a peak intensity appearing in the vicinity of: diffraction angle 2?=42.5 deg and showing (111) face of LaNi5 and P2 is a peak intensity appearing in the vicinity of: diffraction angle 2?=15.8 deg and showing (100) face of La(OH)3 in the X-ray diffractometry using CuK? rays.

Abstract: A negative electrode of a battery, chiefly includes hydrogen absorption alloy particles each having a surface layer. The alloy particles satisfy R2/R1?0.004 and 5 ?m?R1?20 ?m, or preferably 5 ?m?R1?12.5 ?m, where R1 is a half of a median diameter of the particles and R2 is thickness of the surface layers.

Abstract: In a nickel-metal hydride rechargeable battery comprising a positive electrode of nickel hydroxide and a negative electrode of hydrogen-absorption alloy, prolonged battery life is achieved by limiting the charge and discharge operations to be performed in the range of 20-60% of the hydrogen-absorption capacity of the hydrogen-absorption alloy.

Abstract: A negative electrode of a battery, chiefly includes hydrogen absorption alloy particles each having a surface layer. The alloy particles satisfy R2/R1≧0.004 and 5 &mgr;m≦R1≦20 &mgr;m, or preferably 5 &mgr;m≦R1≦12.5 &mgr;m, where R1 is a half of a median diameter of the particles and R2 is thickness of the surface layers.

Abstract: A negative electrode of a battery, chiefly includes hydrogen absorption alloy particles each having a surface layer. The alloy particles satisfy R2/R1≧0.004 and 5 &mgr;m≦R1≦20 &mgr;m, or preferably 5 &mgr;m≦R1≦12.5 &mgr;m, where R1 is a half of a median diameter of the particles and R2 is thickness of the surface layers.

Abstract: A telephone apparatus is disclosed which comprises: a receiving portion for receiving a telephone signal and generating a voice signal from the received telephone signal; a frequency conversion portion responsive to a control signal for frequency-converting the voice signal; and a reproducing portion for reproducing the voice signal from the frequency conversion portion. The frequency converting amount may be controlled externally or may be predetermined. The frequency converting amount data may cleared every communication for various circumstances. The circumference noise level and the frequency conversion amount data are stored when the frequency conversion is commended in an automatic mode during a communication. In the later communication, the frequency conversion may be effected automatically when the circumference noise level is larger than the stored circumference noise level.

Abstract: A deflecting yoke core with which magnetic saturation is prevented by optimizing the relationship between the core sectional area and the density of the magnetic flux distribution. The deflecting yoke core to be mounted between a neck and a funnel of a cathode ray tube has a hole 2 extending from an opening end of a neck portion 3 to an opening end of a funnel portion 1. The hole 2 at the funnel portion 1 widens toward the opening end of the funnel portion 1. An outer shape at the opening end of the funnel portion 1 has a short diameter Dx1 along a minor axis X and a long diameter Dy1 along a major axis Y. Core sectional areas along a plane parallel to and passing through a core axis O1 are largest within an angular range of 30° to 65° measured around the core axis O1 from a 0° reference angle at the minor axis X.

Abstract: A window glass for an automobile, comprising a glass plate in which a through hole is formed in its peripheral portion and a resin holder which is formed integrally with the glass plate so as to fill the through hole and which clamps the glass plate, is presented. The window glass for an automobile can be produced in a relatively short time; can reduce the size of the holder and allows resource recycling of the window glass.

Abstract: A hydrogen-absorption alloy electrode includes, as a principal material, particles of a hydrogen-absorption alloy containing a rare earth element, Ni, Co, Al and Mn and leads to reduced deviation in battery characteristics after charging/discharging cycles by having the size distribution of the alloy particles limited such that d90/d10≦8 and d90−d10≦50 &mgr;m, where di (where i varies from 0 to 100) means a particle size at which cumulative size frequency with respect to the entire particles is i%.

Abstract: A negative electrode of a battery, chiefly includes hydrogen absorption alloy particles each having a surface layer. The alloy particles satisfy R2/R1≧0.004 and 5 &mgr;m≦R1≦20 &mgr;m, or preferably 5 &mgr;m≦R1≦12.5 &mgr;m, where R1 is a half of a median diameter of the particles and R2 is thickness of the surface layers.

Abstract: In a nickel-metal hydride rechargeable battery comprising a positive electrode of nickel hydroxide and a negative electrode of hydrogen-absorption alloy, prolonged battery lite is achieved by limiting the charge and discharge operations to be performed in the range of 20-60% of the hydrogen-absorption capacity of the hydrogen-absorption alloy.