32results about How to "Less reduction" patented technology

A phosphor, which has less reduction in emission efficiency and is capable of keeping high luminance even when density of an electron beam for exciting the phosphor increases, is provided. As raw materials, Ca3N2 (2N), AlN (3N), Si3N4 (3N), and Eu2O3 (3N) are prepared, and each of the raw materials is weighed so that a mole ratio of each element is, for example, (Ca+Eu):Al:Si=1:1:1, and mixed, then the mixture is held and fired at 1500° C. under the inert atmosphere for three hours, and thereafter ground to produce a phosphor having a composition formula of Ca0.985SiAlN3:Eu0.015

An aluminum alloy sheet and a method for producing an aluminum alloy sheet. The aluminum alloy sheet is useful for forming into drawn and ironed container bodies. The sheet preferably has an after-bake yield strength of at least about 37 ksi and an elongation of at least about 2 percent. Preferably, the sheet also has earing of less than about 2 percent.

In an X-ray diffraction method using the parallel beam method, an X-ray parallel beam is incident on a sample, and diffracted X-rays from the sample are reflected at a mirror and thereafter detected by an X-ray detector. The reflective surface of the mirror has a shape of an equiangular spiral that has a center located on the surface of the sample. A crystal lattice plane that causes reflection is parallel to the reflective surface at any point on the reflective surface. The X-ray detector is one-dimensional position sensitive in a plane parallel to the diffraction plane. A relative positional relationship between the mirror and the X-ray detector is determined so that reflected X-rays from different points on the reflective surface of the mirror reach different points on the X-ray detector respectively. This X-ray diffraction method is superior in angular resolution, and is small in X-ray intensity reduction, and is simple in structure.

In an X-ray diffraction method, an X-ray parallel beam is incident on a sample, and diffracted X-rays from the sample are reflected at a mirror and thereafter detected by an X-ray detector. The reflective surface of the mirror is a combination of plural flat reflective surfaces, the respective centers of which are located on an equiangular spiral having a center that is located on a surface of the sample. The X-ray detector is one-dimensional position-sensitive in a plane parallel to the diffraction plane. X-rays that have been reflected at different flat reflective surfaces reach different points on the X-ray detector respectively. A correction is performed for separately recognizing different reflected X-rays that may have been reflected at the different flat reflective surfaces, and might be mixed with each other on the same detecting region of the X-ray detector.

A tension roller assembly includes a tension roller, a pivotable support arm, a tension arm, a compression spring, a rod, first and second spring stops, a mounting plate, and an overcenter assembly connected to an end of the tension arm. The overcenter assembly connects the tension arm to the mounting plate. The overcenter assembly is configured to make a pivoting movement over a pivot trajectory between engaged and disengaged positions. The overcenter assembly further has a center position located between the engaged and disengaged positions. The pivot trajectory between the center position and the disengaged position is divided into a tensioned section in which the end stop does not engage the stop surface and the spring exerts a force on the overcenter assembly, and a free-moving section in which the end stop engages the stop surface and the spring does not exert any force on the overcenter assembly.

Various embodiments disclosed relate to a viscosifier polymer for treatment of a subterranean formation, and methods and systems including the same. In various embodiments, the present invention provides a method of treating a subterranean formation. The method can include obtaining or providing a composition including a viscosifier polymer. The method can also include placing the composition in a subterranean formation.

A heat-sensitive recording material has a support, and a heat-sensitive recording layer including at least a leuco dye, a developer and a binder. The heat-sensitive recording layer contains secondary particles with an average particle diameter of 30 to 900 nm formed by aggregation of primary particles of amorphous silica with a particle diameter of at least 3 nm and less than 30 nm, and optionally a basic pigment. A protective layer may be formed on the heat-sensitive recording layer.

The present invention relates to a downhole valve system (1) for controlling inflow of a fluid from and to a formation (100), comprising a casing (2) having an inner surface (3), an outer diameter (ODc) and an inner diameter (IDc), and a cross section (Ac) defined by the inner diameter, the casing comprising a plurality of valves (4, 4a, 4b, 4c) arranged spaced apart from each other for controlling the flow of the fluid to and from the formation through the casing, and a plurality of autonomous operating adjusting devices (5) each controlling one of the plurality of valves and each autonomous operating adjusting device comprising a body (6) having an outer body diameter (Db) and a body cross section (Ab), the plurality of autonomous operating adjusting devices being fastened inside the casing in order to allow the fluid to flow between the outer body diameter of the body of the autonomous operating adjusting device and the casing. The present invention furthermore relates to a method for controlling an inflow of fluid by controlling a plurality of valves in a downhole valve system according to the present invention.

A fluorescent substance is provided having excellent temperature properties and capable of being excited by light in the region from near ultraviolet to short-wavelength visible light to emit light of yellow to red color. A process for producing the fluorescent substance, and a light emitting device using the fluorescent substance is also provided. The fluorescent substance includes M which is at least one group II element selected from Ca, Sr, and Ba, and Al, Si, O, and N, and activated with Eu. The fluorescent substance has an X-ray diffraction pattern using CuKα radiation, in which the intensity of the diffraction peak in the Bragg angle range of 17.9° to 18.5° is taken as 100%, the relative intensity of the diffraction peak is 150% to 310% in a Bragg angle range of 24.5° to 25.1° , and is 320% to 550% in a Bragg angle range of 34.8° to 35.4°.

The invention provides a a luminescent material comprising particles of UV-luminescent material having a coating, wherein the coating (a “multi-layer coating”) comprises a first coating layer and a second coating layer, wherein the first coating layer is between the luminescent material and the second coating layer, and wherein in a specific embodiment the second coating layer comprises an alkaline earth oxide, especially MgO. Further, the invention provides a lighting unit comprising such luminescent material.

A semiconductor device, including: a gate electrode formed on a semiconductor substrate through a gate insulating film; an extension region formed in the semiconductor substrate on a source side of the gate electrode; a source region formed in the semiconductor substrate on the source side of the gate electrode through the extension region; an LDD region formed in the semiconductor substrate on a drain side of the gate electrode; and a drain region formed in the semiconductor substrate on the drain side of the gate electrode through the LDD region; wherein the extension region is formed at a higher concentration than that of the LDD region so as to be shallower than the LDD region.

The present invention relates to an ophthalmic lens which efficiently absorbs light rays comprising a composition derived from a monomer or oligomer, a catalyst, at least one light-absorbing additive contained in nanoparticles which are dispersed in said monomer or oligomer.

Various embodiments disclosed related to methods, compositions, and systems for treatment of a subterranean formation. In various embodiments, the present invention provides a method of treating a subterranean formation. The method can include obtaining or providing a composition including a crosslinkable viscosifier polymer. The crosslinkable viscosifier polymer can include an ethylene repeating unit including a —C(O)NH2 group and an ethylene repeating unit including an —S(O)2OR1 group, wherein the repeating units are in block, alternate, or random configuration. At each occurrence R1 can be independently selected from the group consisting of —H and a counterion. The composition can also include at least one crosslinker. The method also includes placing the composition in a subterranean formation downhole.

A phosphor for absorbing light in a region from ultraviolet to visible light and emitting light whose emission peak wavelength being in a range of 600 nm to 650 nm, represented by general formula shown below, and having a difference between the emission peak wavelength and a half width being larger than 543 nm.SrtCavEuwAlxSiyNz (in which, 0.5≦t<1, 0<v≦0.5, 0.01<w≦0.03, t+v+w<1, 0.90≦x≦1.1, 0.90≦y≦1.1, 2.5≦z≦3.5)