Konica Minolta, Inc.

Konica Minolta Opto, Inc.

Konica Minolta Advanced Layers, Inc.

Yoshihito Taguchi

Takuji Hatano

Takashi Washizu

Masashi Ikeda

Hitoshi Adachi

An image forming method according to an aspect of the present invention includes supplying a water based ink to an inkjet head at a flow rate of 5 mL/min or more and 120 mL/min or less, and ejecting the supplied water based ink from a nozzle of the inkjet head. The water based ink contains a colorant and a water-insoluble resin having a glass transition temperature of 40° C. or higher and 100° C. or lower.

Image forming method

The present invention addresses the problem of providing an LED device having no color unevenness in light emission. In order to solve the problem, this LED device manufacturing method includes: a step of providing an LED chip-mounted package; a step of film-forming a fluorescent material layer by applying a fluorescent material-dispersed solution to a emission surface of the LED chip, said fluorescent material-dispersed solution containing a solvent, a fluorescent material, clay minerals and porous inorganic particles, and by drying the fluorescent material-dispersed solution; and a step of film-forming a wavelength conversion section by applying, to the fluorescent material layer, a precursor solution having a precursor of a light transmissive ceramic dispersed in a solvent, and by firing the layer, said wavelength conversion section being composed of a light transmissive ceramic layer having the fluorescent material, the clay minerals and the porous inorganic particles dispersed therein.

LED device manufacturing method and fluorescent material-dispersed solution used in same

Disclosed is a manufacturing method for a light emitting device including a light emitting element and a wavelength converting part which converts light emitted from the light emitting element into light of another wavelength. The manufacturing method includes a first step and a second step. The first step is a step of applying onto the light emitting element and drying a first liquid mixture in which phosphor and plate-like particles are dispersed in polyhydric alcohol having a valence of two or more to form a phosphor layer. The second step is a step of applying onto the phosphor layer and firing a second liquid mixture in which a translucent ceramic precursor is dispersed in a solvent to form the wavelength converting part.

Manufacturing method for light emitting device and phosphor mixture

A light-emitting device () is provided with a metal part () atop a planar LED substrate (), and an LED element () is disposed atop the metal part (). A glass substrate () is provided to an upper surface of the LED element (), and a wavelength conversion part () is formed on an upper surface of the glass substrate (). The wavelength conversion part () comprises a light-transmissive ceramic layer formed by heating a mixture containing a phosphor, an organometallic compound, a layered silicate mineral, an inorganic particulate, an organic solvent, and water.

Light-emitting device and method for manufacturing same

Provided with the following glass components: 8 to 19.5% BO, 4.5 to 9% SiO, 0 to 10% GeO, 7 to 12.5% BaO, 0 to 14% MgO, 0 to 0.4% LiO, 15 to 34% LaO, 3.5 to 10% YO, 8 to 13.5% TiO, 0 to 7% ZrO, 0 to 11% NbO, and 1 to 9% WOby weight, wherein BO/SiOis at least 1.0, LaO+YO+ZrO+NbO+WOis no more than 54%, and BO+SiO+GeO+BaO+MgO+LiO+LaO+YO+TiO+ZrO+NbO+WOis at least 98%.

Optical glass and optical element

A wavelength conversion element, including: a substrate; and a ceramic layer formed on the substrate, the ceramic layer being obtained by sintering a ceramic precursor; wherein the ceramic precursor is a compound selected from the group composed of alkoxysilane and a compound having a plurality of siloxane structures; a phosphor and particles of an oxide are mixed with the ceramic precursor; the phosphor has particle diameters within a range of from 1 &#x3bc;m to 50 &#x3bc;m and a concentration of the phosphor in the ceramic layer is equal to or more than 40 wt % and less than 95 wt %; and the particles of the oxide have primary particle diameters within a range of from 0.001 &#x3bc;m to 30 &#x3bc;m and a concentration within a range of from 0.5 wt % to 20 wt % in the ceramic layer.

Wavelength conversion element and light emitting device

An optical glass includes, based on the total weight of the optical glass: not less than 35 weight percent and less than 45 weight percent of PO; not less than 0.5 weight percent and less than 10 weight percent of BO; 0 to 16 weight percent of AlO; 0 to 2.5 weight percent of SiO; 0 to 26 weight percent of BaO; 0 to 20 weight percent of SrO; 23 to 49 weight percent of ZnO; more than 6 weight percent and not more than 20 weight percent of CaO; 0 to 16 weight percent of MgO; not less than 0 weight percent and less than 1 weight percent of LiO; 3 to 19 weight percent of NaO; and 0 to 20 weight percent of KO, where the total weight of BaO, SrO, ZnO, CaO, and MgO and the total weight of LiO, NaO and KO are predetermined amounts.

Growing community of inventors

Hachioji, Japan

Yoshihito Taguchi