Patent application number | Description | Published |
20080230171 | METHOD FOR PRODUCING CATALYST-LAYER-SUPPORTING SUBSTRATE, METHOD FOR PRODUCING MEMBRANE-ELECTRODE ASSEMBLY AND METHOD FOR PRODUCING FUEL CELL - A method for producing a catalyst-layer-supporting substrate includes a lamination step of forming a laminate of metal catalyst layers and mixture layers on a substrate by repeating a first step and a second step plural times alternatively; and an acid treatment step of subjecting the laminate to an acid treatment, wherein the first step is a step of sputtering or depositing the metal catalyst layer that comprises a catalyst, and the second step is a step of sputtering or depositing the mixture layer of carbon and metal, the metal of the mixture layer including at least one element M selected from the group consisting of Sn, Al, Cu and Zn. | 09-25-2008 |
20080233465 | CATALYST, METHOD FOR PRODUCING CATALYST, MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL - A catalyst is provided and includes fine catalyst particles of a composition represented by formula (1): Pt | 09-25-2008 |
20080241639 | CATALYST FOR POLYMER SOLID ELECTROLYTE FUEL CELL, MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL - There is provided a catalyst for a fuel cell, which simultaneously realizes excellent catalytic activity and catalytic stability. The catalyst for a fuel cell comprises a fine particle of a metal represented by formula: | 10-02-2008 |
20080303426 | FLUORESCENT RARE EARTH COMPLEX, AND LIGHT-EMITTING ELEMENT, SECURITY MEDIUM AND LIGHTING DEVICE USING THE SAME - The present invention provides a fluorescent rare earth complex having high solubility to a medium, showing fluorescence of high intensity and possessing excellent durability, and also provides a light-emitting element using that complex. The rare earth complex comprises a rare earth ion and a phosphine oxide ligand, and the phosphine oxide ligand contains a phosphorus atom connecting to at least one phenyl group. In the phenyl group, at least one of the meta-positions is substituted. It is also necessary that the para-position of the phenyl group be not substituted. | 12-11-2008 |
20090050851 | FLUORESCENT SUBSTANCE CONTAINING RARE EARTH METAL, LUMINOUS COMPOSITION COMPRISING THE SAME, PROCESS FOR MANUFACTURING THEREOF, AND LIGHT-EMITTING ELEMENT COMPRISING THE FLUORESCENT SUBSTANCE - The present invention provides a fluorescent substance excellent in emission intensity and in emission efficiency. The substance can be excited by light at a longer wavelength than ever. The present invention also provides a luminous composition comprising the fluorescent substance and a light-emitting element using the substance. The fluorescent substance comprises a rare earth metal and a phosphine oxide ligand which coordinates to said rare earth metal and said ligand containing at least one siloxane bond in its structure. The fluorescent substance can be produced from a reaction between a compound having a siloxane bond and a rare earth complex coordinated by a phosphine oxide ligand. The luminous composition comprises the fluorescent substance. | 02-26-2009 |
20100148203 | SEMICONDUCTOR LIGHT-EMITTING DEVICE - There is provided a semiconductor light-emitting device including a semiconductor light-emitting element, a phosphor layer disposed in a light path of a light emitted from the semiconductor light-emitting element, containing a phosphor to be excited by the light and having a cross-section in a region of a diameter which is 1 mm larger than that of a cross-section of the light path, and a heat-releasing member disposed in contact with at least a portion of the phosphor layer and exhibiting a higher thermal conductance than that of the phosphor layer. | 06-17-2010 |
20110220919 | FLUORESCENT SUBSTANCE, PROCESS FOR PRODUCTION OF FLUORESCENT SUBSTANCE, LIGHT-EMITTING DEVICE AND LIGHT-EMITTING MODULE - The embodiment provides a process for production of an oxynitride fluorescent substance. An compound containing In or Ga is adopted in the process as a material thereof. The red fluorescent substance produced by the process can be combined with a semiconductor light-emitting element, so as to be used in a light-emitting device or a light-emitting module. | 09-15-2011 |
20110220933 | SEMICONDUCTOR LIGHT EMITTING DEVICE AND METHOD OF FABRICATING SEMICONDUCTOR LIGHT EMITTING DEVICE - A semiconductor light emitting device has a light emitting element, and first and second electrodes. The light emitting element has a nitride-based III-V compound semiconductor on a substrate. The first and second electrodes are disposed on both sides of the light emitting element, respectively. The light emitting element has a light emitting layer, a first conductive type semiconductor layer, and a second conductive type semiconductor layer. The first conductive type semiconductor layer is disposed between the light emitting layer and the first electrode. The second conductive type semiconductor layer is disposed between the light emitting layer and the second electrode. One surface of the first conductive type semiconductor layer contacts the first electrode and is a light extraction surface which is roughly processed so as to have two or more kinds of oblique angles. | 09-15-2011 |
20130234585 | LUMINESCENT MATERIAL - According to one embodiment, the luminescent material shows a luminescence peak in a wavelength range of 570 to 670 nm when excited with light having an emission peak in a wavelength range of 250 to 520 nm. The luminescent material includes a host material having a crystal structure substantially same as the crystal structure of Sr | 09-12-2013 |