Abstract: An amplifier circuit includes a pair of transistors amplifying differential signals of input signals to respective input terminals and outputting differential output signals to respective output terminals, and an impedance circuit provided in between sources of the pair of transistors, canceling a first cutoff characteristic on a high frequency side in frequency characteristics of the amplifier circuit constructed of the pair of transistors, and forming a second cutoff characteristic on a higher frequency side than the first cutoff characteristic.

Abstract: The present invention provides a resembling prismatic structure of light guide plate to economize the optical films such as prismatic film, diffusion film, reflection film and . . . etc. The present invention simplifies the multifarious structures of the prior LCD backlight modules. It can efficiently decrease the material of making the backlight module and the cost of the manufacturing time. In comparison with that conventional LCD backlight module emits light wholly, continuously and evenly from light emitting face of light guiding plate. Large amount of energy is wasted in the conventional backlight module owing to its illumination on the opaque part of LCD substrate such as common electrode and black matrix.

Abstract: A bulb holder for decorative lamp includes a main body that is connected to a frame of the lamp for holding a plurality of bulbs and has retaining spaces equally spaced at a lower side thereof, and a tubular connector that includes a lower tube portion that may be differently sized, and a horizontal flange portion. The flange portion is provided along an outer edge with equally spaced teeth corresponding to the retaining spaces on the main body. By aligning the tube portion with a central mounting hole of the main body and turning the tubular connector to move the teeth into the retaining spaces, the tubular connector is detachably connected to the lower side of the main body. By connecting the main body to a tubular connector having a differently sized tube portion, the decorative lamp may be conveniently mounted onto a differently sized post via the tube portion.

Abstract: A tantalum niobium or tantalum-niobium alloy with a film containing polycrystalline lithium metal oxide wherein the metal corresponds to the metal from which the article is made, wherein the surface properties including hardness, yield strength, elasticity and electrical properties are improved so that the operating life can be increased and new application for such articles can be made.Tantalum spinnerets of the present invention have longer operating life, clog less and produce a better quality fiber.

Abstract: A process for coating an article made of tantalum niobium or tantalum-niobium alloy with a film containing polycrystalline lithium metal oxide wherein the metal corresponds to the metal from which the article is made. More particularly, the process improves the surface properties including hardness, yield strength, elasticity and electrical properties so that the operating life can be increased and new application for such articles can be made.It is found that tantalum spinnerets treated in accordance with the process according to the present invention have longer operating life, clog less and produce a better quality fiber.