Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Takashi Ohbayashi

Yoshihisa Nagasaki

Seigo Shiraishi

Kojiro Okuyama

Takahiro Hamada

Osamu Inoue

Mitsuru Nitta

Yukihiko Sugio

Nobuaki Nagao

Naoyuki Tani

Yuji Miyachi

Kazuma Mima

Yusuke Ogihara

Kazunori Sakai

A conductive paste for an electrolytic capacitor used for connecting a cathode part and a cathode lead terminal of the electrolytic capacitor. The conductive paste includes a thermosetting resin, and conductive particles, and the conductive particles include flaky metal particles and acicular conductive particles. The content of the conductive particles in the conductive paste is, for example, 50 mass % or more and 70 mass % or less, and the mass ratio of the flaky metal particles to the total of the flaky metal particles and the acicular conductive particles is, for example, 60% or more and 80% or less.

Electrically conductive paste for electrolytic capacitor, and electrolytic capacitor

A wavelength conversion device includes a matrix containing inorganic material, a phosphor embedded in the matrix, and filler particles embedded in the matrix and containing resin material. This wavelength conversion device prevents the phosphor from falling.

Wavelength conversion member, optical device, projector, and manufacturing method for wavelength conversion member

A wavelength conversion device of the present disclosure includes a substrate, a phosphor layer that has a matrix containing zinc oxide and phosphor particles embedded in the matrix and that is supported by the substrate, a dielectric layer disposed between the substrate and the phosphor layer, and a protective layer that is disposed between the phosphor layer and the dielectric layer and that has an isoelectric point equal to or larger than 7. A main surface of the substrate includes, for example, first and second regions. The phosphor layer covers, for example, only the first region out of the first and second regions.

Wavelength conversion member, light source, illumination device, and method for manufacturing wavelength conversion member

A wavelength conversion member of the present disclosure includes a first matrix, phosphor particles embedded in the first matrix, and at least one selected from the group consisting of first filler particles embedded in the first matrix and surface coating layers respectively covering surfaces of the phosphor particles. The wavelength conversion member satisfies at least one relationship selected from the group consisting of |n&#x2212;n|&#x3e;|n&#x2212;n| and |n&#x2212;n|&#x3e;|n&#x2212;n| wherein nis a refractive index of the first matrix, nis a refractive index of the phosphor particles, nis a refractive index of the first filler particles, and nis a refractive index of the surface coating layers.

Wavelength conversion member, light source and lighting device

A phosphor includes, as a main component, a compound represented by a general formula (3-a)YO.aCeO.(5-b)AlO.bGaO.cKO.dPO, where a, b, c and d satisfy 0.12&#x2264;a&#x2264;0.18, 1.50&#x2264;b&#x2264;3.00, 0.01&#x2264;c&#x2264;0.08, and 0.01&#x2264;d&#x2264;0.08.

Phosphor, method of producing same, and light-emitting device

A wavelength conversion member comprises: a substrate; and a wavelength conversion layer. The wavelength conversion layer contains a first phosphor and a second phosphor. The second phosphor has a higher thermal conductivity than the first phosphor. In the wavelength conversion layer, a volume of the second phosphor is larger than a volume of the first phosphor. The wavelength conversion layer includes a first portion and a second portion. The first portion is located closer to the substrate than the second portion, and is in direct contact with the second portion. Thicknesses of the first portion and the second portion are equal to each other. A volume V11 of the first phosphor in the first portion, a volume V12 of the second phosphor in the first portion, a volume V21 of the first phosphor in the second portion, and a volume V22 of the second phosphor in the second portion satisfy V11/V12&#x3c;V21/V22.

Wavelength conversion member including phosphor

A light source includes a semiconductor light emitting device; and a wavelength converter. The wavelength converter includes: a substrate; a phosphor layer disposed on the substrate; and a light reflective layer disposed on the substrate so as to surround the phosphor layer. The phosphor layer includes phosphor particles and a first matrix material in which the phosphor particles are dispersed. The light reflective layer includes inorganic compound particles and a second matrix material in which the inorganic compound particles are dispersed. The inorganic compound particles have a refractive index higher than that of the first matrix material. The first matrix material has a refractive index higher than that of the phosphor particles. The phosphor particles have a refractive index higher than that of the second matrix material.

Light source including wavelength converter

A lamp includes: first and second semiconductor light-emitting elements adapted to emit excitation light; a wavelength conversion element adapted to convert the excitation light into light having a peak wavelength different from that of the excitation light; and a concave mirror adapted to reflect the excitation light emitted from the semiconductor light-emitting elements to the wavelength conversion element and reflect the light from the wavelength conversion element toward an outside of the lamp. A distance y1 from an optical axis of the first semiconductor light-emitting element to an optical axis of the concave mirror satisfies (D+Dphos)/2&#x2266;y1&#x2266;4f, and a distance y2 from an optical axis of the second semiconductor light-emitting element to the optical axis of the concave mirror satisfies 4f&#x3c;y2&#x2266;R.

Lamp and vehicle headlamp

The present invention provides an oxynitride silicate fluorescent substance capable of output a light having a high luminance even when irradiated by an exciting light having a high energy density. The present invention is a yellow fluorescent substance represented by a chemical formula (Ba,Sr)SiON:Eu,Y(0.9&#x2266;a&#x2266;1.1, 1.9&#x2266;b&#x2266;2.1, 1.9&#x2266;c&#x2266;2.1, 1.9&#x2266;d&#x2266;2.1, 0&#x2266;x&#x2266;1, 0&#x3c;y&#x3c;0.01, and 0&#x2266;z&#x3c;0.01).

Yellow fluorescent substance, light-emitting device, illumination device, and vehicle

The present disclosure provides a (Ba,Sr)MgSiO:Eubased phosphor with high emission quantum efficiency. Specifically, the present disclosure provides a blue light emitting phosphor including: a (Ba,Sr)MgSiObased crystal where z satisfies 0&#x2266;z&#x3c;1 and a (Ba,Sr)MgSiObased crystal where z satisfies 0&#x2266;z&#x3c;1 as a host crystal; and Euas a luminescent center.

Phosphor, light-emitting device, image pickup device, liquid crystal display device, lighting device, and vehicle

An object of the disclosure is to provide a chip resistor without causing the disconnection in atmosphere of sulfidizing gas and without precipitating silver sulfide on its surface. The chip resistor of the present disclosure includes a resistor layer disposed on a top surface of a substrate; a first upper electrode layer disposed at both sides of the resistor layer and being electrically connected to the resistor layer; and a second upper electrode layer disposed on the first upper electrode layer and including between 75% by weight and 85% by weight (inclusive) of silver particles with an average particle diameter ranging from 0.3 um to 2 um, between 1% by weight and 10% by weight (inclusive) of carbon, and a resin.

Chip resistor and method of producing same

A light source device is provided. The light source device comprises a semiconductor light-emitting element; and a wavelength conversion member for converting a wavelength of a light emitted from the semiconductor light-emitting element. The semiconductor light-emitting element has a light-emitting peak wavelength of not less than 380 nanometers and not more than 420 nanometers. The light emitted from the semiconductor light-emitting element has a light energy density of not less than 0.2 kW/cm. The wavelength conversion member contains at least one fluorescent substance selected from the group consisting of a (Sr,Ba)MgSiO:Eu(0&#x2266;x&#x2266;1) fluorescent substance, a (Y,Gd)(Al,Ga)O:Ce(0&#x2266;y&#x2266;1, 0&#x2266;z&#x2266;1) fluorescent substance, and an Eu-activated fluorescent substance. The light source device has a high output and a high light-emitting efficiency.

Light source device including a high energy light source and a wavelength conversion member, illuminating device comprising the same, and vehicle

An LED encapsulation resin body disclosed in the present application includes: a phosphor; a heat resistance material arranged on, or in the vicinity of, a surface of the phosphor; and a silicone resin in which the phosphor with the heat resistance material arranged thereon is dispersed.

LED encapsulation resin body, LED device, and method for manufacturing LED device

It is an object to provide phosphors with high luminance. It also is an object to provide phosphors with less decrease in luminance due to a reduction in particle diameter. A first phosphor is represented by a general formula: aYO.(3&#x2212;a)CeO.bAlO.cGaO.fWO(2.80&#x2266;a&#x2266;2.99, 3.00&#x2266;b&#x2266;5.00, 0&#x2266;c&#x2266;2.00, 0.003&#x2266;f&#x2266;0.020, where 4.00&#x2266;b+c&#x2266;5.00). A second phosphor is represented by a general formula: aYO.(3&#x2212;a)CeO.bAlO.cGaO.gKWO(2.80&#x2266;a&#x2266;2.99, 3.00&#x2266;b&#x2266;5.00, 0&#x2266;c&#x2266;2.00, 0.003&#x2266;g&#x2266;0.015, where 4.00&#x2266;b+c&#x2266;5.00).

Yttrium&#x2014;aluminum&#x2014;garnet-type phosphor

An LED device includes: a substrate; an LED element provided on the substrate; a cerium oxide-dispersed composition layer containing a silicone resin and cerium oxide in an amount of 0.005 parts by weight or more and 0.03 parts by weight or less with respect to 100 parts by weight of the silicone resin, for covering the LED element; and a sealing material containing no cerium oxide for covering the cerium oxide-dispersed composition layer.

Growing community of inventors

Osaka, Japan

Takashi Ohbayashi