Patent application number | Description | Published |
20100053970 | LIGHT-EMITTING DEVICE AND ILLUMINATING DEVICE - A light-emitting device includes: a first laser light source; a first diffusion member provided along a light axis of a first light radiated form the first laser light source; and a first wavelength converter provided along the first diffusion member. The first diffusion member generates a second light from the first light. The second light outgoes in a direction different from the light axis direction of the first light. A ratio of generating the second light from the first light in a first part is higher than that in a second part, wherein an intensity of the first light in the first part is lower than that in a second part. The first wavelength converter absorbs the second light and emitting a third light having a different wavelength from the second light. | 03-04-2010 |
20110051769 | SEMICONDUCTOR LIGHT EMITTING DEVICE - A semiconductor light emitting device includes: a stacked body including a first and a second semiconductor layers of a first and second conductivity types respectively, and a light emitting layer provided between thereof; a first and a second electrodes in contact with the first and second semiconductor layers respectively. Light emitted is resonated between first and second end surfaces of the stacked body opposed in a first direction. The second semiconductor layer includes a ridge portion and a wide portion. A width of the ridge portion along a second direction perpendicular to the first and the stacking directions is narrower on the second electrode side than on the light emitting layer side. A width of the wide portion along the second direction is wider than the ridge portion. A width of the narrow part of the second electrode along the second direction is narrower than that on the ridge portion | 03-03-2011 |
20120007113 | SEMICONDUCTOR LIGHT EMITTING DEVICE - According to one embodiment, a semiconductor light emitting device includes an n-type semiconductor layer, a p-type semiconductor layer, a well layer, a barrier layer, an Al-containing layer, and an intermediate layer. The p-type semiconductor layer is provided on a side of [0001] direction of the n-type semiconductor layer. The well layer, the barrier layer, the Al-containing layer and the intermediate layer are disposed between the n-type semiconductor layer and the p-type semiconductor layer subsequently. The Al-containing layer has a larger band gap energy than the barrier layer, a smaller lattice constant than the n-type semiconductor layer, and a composition of Al | 01-12-2012 |
20120106127 | LIGHT EMITTING DEVICE - A light emitting device includes a light source capable of emitting emission light, a first phosphor layer and an optical waveguide. A first phosphor layer has at least a first surface and a second surface on an opposite side of the first surface, extends in a light guiding direction, and is capable of absorbing the emission light and emitting first wavelength converted light having a longer wavelength than the emission light. The optical waveguide has a reflector. And the optical waveguide has an input surface of the emission light, a reflection surface being in contact with the first surface of the first phosphor layer and provided on a surface of the reflector, and an output surface spaced from the first phosphor layer. The reflection surface and the output surface extend in the light guiding direction. | 05-03-2012 |
Patent application number | Description | Published |
20110175014 | MAGNETIC PARTICLE AND METHOD OF PREPARING THE SAME, AND MAGNETIC RECORDING MEDIUM - An aspect of the present invention relates to a magnetic particle obtained by heat-treating a hexagonal ferrite magnetic material in reducing atmosphere containing hydrocarbon gas. | 07-21-2011 |
20120018665 | MAGNETIC PARTICLE AND METHOD OF PREPARING THE SAME - An aspect of the present invention relates to a method of preparing a magnetic particle, which comprises attaching a transition metal-containing organic compound to a surface of a hard magnetic particle and then thermally decomposing the transition metal-containing organic compound to obtain the magnetic particle. | 01-26-2012 |
20120080638 | MAGNETIC RECORDING MEDIUM, MAGNETIC RECORDING-USE MAGNETIC POWDER AND METHOD OF PREPARING THE SAME - An aspect of the present invention relates to a magnetic recording medium comprising a magnetic layer comprising ferromagnetic powder and a binder, wherein the ferromagnetic powder is magnetic powder comprised of gathering magnetic particles, the magnetic particles are a reduction product of hexagonal ferrite magnetic particles wherein a ratio Dc/Dtem of a crystallite size Dc obtained from a diffraction peak of a (220) plane to a particle diameter Dtem in a direction perpendicular to a (220) plane as determined by a transmission electron microscope ranges from 0.90 to 0.75. | 04-05-2012 |
20120183811 | MAGNETIC RECORDING MEDIUM - An aspect of the present invention relates to a magnetic recording medium comprising a magnetic layer containing a ferromagnetic powder and a binder on a nonmagnetic support, wherein the ferromagnetic powder is comprised of magnetic particles comprising a hard magnetic particle and a soft magnetic material deposited on a surface of the hard magnetic particle in a state where the soft magnetic material is exchange-coupled with the hard magnetic particle. | 07-19-2012 |
20130084470 | MAGNETIC RECORDING MEDIUM - An aspect of the present invention relates to a magnetic recording medium comprising a magnetic layer containing a ferromagnetic powder and a binder on a nonmagnetic support, wherein the ferromagnetic powder has a hexagonal ferrite structure, the magnetic layer comprises a coefficient of friction-lowering component in the form of nonmagnetic inorganic particles, and a compound in which a substituent selected from the group consisting of a hydroxyl group and a carboxyl group is directly substituted on an aromatic ring. | 04-04-2013 |
20140151595 | METHOD OF MANUFACTURING HEXAGONAL FERRITE MAGNETIC PARTICLES, METHOD OF MANUFACTURING MAGNETIC COATING MATERIAL, AND METHOD OF MANUFACTURING MAGNETIC RECORDING MEDIUM - The method of manufacturing hexagonal ferrite magnetic particles includes providing hexagonal ferrite magnetic particles by conducting calcination of particles comprising an iron salt and an alkaline earth metal salt to cause ferritization; and further includes preparing the particles comprising an iron salt and an alkaline earth metal salt by adhering a glass component, followed by the alkaline earth metal salt, to the iron salt; and conducting calcination of the particles prepared to form a calcined product in which hexagonal ferrite is detected as a principal component in X-ray diffraction analysis. | 06-05-2014 |
20140212693 | MAGNETIC RECORDING MEDIUM - The magnetic recording medium includes a magnetic layer containing a ferromagnetic powder and a binder on a nonmagnetic support, wherein the ferromagnetic powder is an ε-iron oxide powder, and the magnetic layer comprises a compound comprising at least one substituent selected from the group consisting of a hydroxyl group and a quaternary ammonium salt group. | 07-31-2014 |
20140219069 | PARTICULATE MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING DEVICE - The magnetic recording medium is a particulate magnetic recording medium for heat-assisted recording, as well as includes a magnetic layer comprising ferromagnetic powder and binder on a nonmagnetic organic material support and a heat-diffusing layer of higher thermal conductivity than the magnetic layer between the nonmagnetic organic material support and the magnetic layer. | 08-07-2014 |
20140314658 | METHOD OF MANUFACTURING MAGNETIC PARTICLES - The method of manufacturing magnetic particles, wherein the magnetic particles are magnetic particles for magnetic recording, and includes subjecting starting material magnetic particles to glass component-adhering treatment to be adhered with a glass component, and subjecting the magnetic particles after the glass component-adhering treatment to coercive force-reducing treatment with heating, to provide magnetic particles having lower coercive force than the starting material magnetic particles. | 10-23-2014 |