Matsushita Electric Industrial Co., Ltd.

Daikin Industries, Ltd.

Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Osamu Inoue

Osamu Tanaka

Kojiro Okuyama

Katsutoshi Yamamoto

Seigo Shiraishi

Mitsuru Nitta

Koichi Kugimiya

Toshio Kusumi

Junichi Kato

Shinichi Chaen

Jun Asano

Nobuki Uraoka

Mitsuo Satomi

Yasuhiro Sugaya

Ken Hirota

Nobuya Matsutani

Shinya Hasegawa

Takeshi Takahashi

Hiroshi Fujii

Shinji Tamaru

Hirofumi Nishibayashi

Tsutomu Koshizuka

Yoshihisa Nagasaki

Kenji Iijima

Takashi Ohbayashi

Syunichiro Kawashima

Yasuhiko Nakada

Masayoshi Hiramoto

Seiichi Hirano

Hiroshi Asano

Seiji Toyoda

Seiichi Nakatani

Koichi Hirano

Kenji Harada

Mikihiko Nishitani

Toshiyuki Asahi

Takayuki Takeuchi

Hiroyuki Handa

Akira Kawase

Masahiro Sakai

Yoshiyuki Shibuya

Masumi Izuchi

Kunihiko Inui

Miyuki Nakai

Seiji Adachi

Kazuhiro Yokota

Yusuke Fukui

Satoshi Hara

Hideyuki Kiyotani

Yayoi Okui

Kouichi Kugimiya

Toshifumi Satoh

Kazuhiro Meiji

Shinji Ohno

Shinji Tanaru

Yasuyuki Aono

Osamu Ishii

Hirotaka Furukawa

An oxychloride phosphor of the present disclosure includes divalent Eu arranged as an augmenting agent, at part of locations. The locations correspond to site of at least two kinds of predetermined substances included in a host crystal. A rate of the number of the divalent Eu with respect to the sum of the number of moles of the predetermined substance and the number of moles of the divalent Eu is less than 2%. When the predetermined substance is represented by A, the oxychloride phosphor is represented by a general formula of xAO.yEuO.SiO.zCl. In this formula, A represents Sr and Ca, or Sr, Ca, and Mg, y indicates a value of not less than 0.002 and not more than 0.02, x+y indicates a value of more than 1.00 and not more than 1.30, and z indicates a value of not less than 0.20 and not more than 0.70.

Oxychloride phosphor, light emitting device, lighting apparatus, and vehicle

A red phosphor material includes an essential component represented by a formula of AREuSmLnMOas a main component, where A represents at least one selected from Ca and Sr; R represents at least one selected from Li, Na, and K; Ln represents at least one selected from La, Gd, and Y; M represents at least one selected from W and Mo; and x, y, and z are numerical values that satisfy 0.2&#x2266;x&#x2266;0.7, 0.2&#x2266;y+z&#x2266;0.6, 0.005&#x2266;z&#x2266;0.04, and x&#x2212;y&#x2212;z&#x2267;0. A light-emitting device includes an excitation light source and the red phosphor material that absorbs excitation light emitted by the excitation light source and emits red light.

Red phosphor material and light-emitting device

A red phosphor material comprising an essential component represented by a formula of ALnEuSmMOas a main component, where A represents at least one selected from Li, Na, and K; Ln represents at least one selected from La and Gd; M represents at least one selected from W and Mo; and x and y are numerical values that satisfy 0.1&#x2266;x+y&#x2266;0.7 and 0.005&#x2266;y&#x2266;0.08. A light-emitting device includes an excitation light source and the red phosphor material that absorbs excitation light emitted by the excitation light source and emits red light.

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

A fluorescent material according to an aspect of the present disclosure mainly comprises a compound represented by ABCEuSmLnWO. A is one or more elements selected from the group consisting of alkaline earth metals and mainly contains Ca. B is one or more elements selected from the group consisting of divalent metals and mainly contains Mg. C is one or more elements selected from the group consisting of alkali metals and mainly contains Li, Na, or Li and Na. Ln is one or more elements selected from the group consisting of rare earth elements excluding Eu and Sm. w, x, y, and z meet the following conditions: 0.05&#x2266;w&#x2266;0.25, 0.05&#x2266;x+y&#x2266;0.25, 0.0&#x2266;y&#x2266;0.02, and w=x+y+z.

Fluorescent material and light-emitting device

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

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

A phosphor material according to an embodiment of the present disclosure contains a major component represented by the formula ABLnEuSmMDO, where A is one or more elements selected from the group consisting of alkaline-earth metal elements; B is one or more elements selected from the group consisting of alkali metal elements; Ln is one or more elements selected from the group consisting of rare-earth elements other than Eu and Sm; M is one or more elements selected from the group consisting of W and Mo; D is one or more elements selected from the group consisting of Nb and Ta; and v, w, x, y, and z satisfy the inequalities 0&#x2266;v&#x2266;0.5, 0.15&#x2266;x+y&#x2266;0.7, 0&#x2266;y&#x2266;0.05, and 0&#x3c;z&#x2266;1.7 and the equation w+x+y=v+z.

Phosphor material and light-emitting device

The present invention provides a zinc oxide-based ultraviolet light emitting material showing intense emission in the ultraviolet region. The present invention is an ultraviolet light emitting material containing: zinc and oxygen as main components; at least one element selected from the group consisting of aluminum, gallium, and indium, as a first sub-component; and phosphorus as a second sub-component. This material has n-type conductivity.

Ultraviolet light emitting material

The present invention is a method of producing an ultraviolet light emitting phosphor material. This method includes a step of heat-treating a composition containing zinc and oxygen as main components and at least one selected from the group consisting of aluminum, gallium and indium as a sub-component, in the presence of at least two coexisting substances selected from the group consisting of zinc oxide, gallium oxide and phosphorus oxide under a non-oxidizing atmosphere.

Method of producing ultraviolet light emitting phosphor material

A plasma display panel () of the present invention includes a first panel () and a second panel (). A discharge space () is formed between the first panel () and the second panel (). In the plasma display panel (), an electron emitting material () is disposed to face the discharge space (). The electron emitting material () contains Sn, an alkali metal, O (oxygen), and at least one element selected from the group consisting of Ca, Sr, and Ba.

Plasma display panel having electron emitting material

A glass composition of the present invention is an oxide glass, in which the percentages of elements except for oxygen (O) contained therein are as follows, in terms of atom %: the amount of boron (B) exceeds 72% but does not exceed 86%, the total amount of lithium (Li), sodium (Na), and potassium (K) is 8% to 20%, the total amount of magnesium (Mg), calcium (Ca), strontium (Sr), and barium (Ba) is 1% to 8%, the amount of silicon (Si) is from 0% to less than 15%, and the amount of zinc (Zn) is from 0% to less than 2%. This glass composition further may contain molybdenum (Mo) and/or tungsten (W) in the range of more than 0% but not more than 3%.

Glass composition and display panel using the same

Disclosed is a glass composition composed of an oxide glass wherein the percentages of constitutional elements other than oxygen (O) expressed in atomic % are as follows: boron (B) is not less than 56% and not more than 72%; silicon (Si) is not less than 0% and not more than 15%; Zinc (Zn) is not less than 0% and not more than 18%; potassium (K) is not less than 8% and not more than 20%; and the total of K, sodium (Na) and lithium (Li) is not less than 12% and not more than 20%. This glass composition further may contain at least one of magnesium (Mg), calcium (Ca), strontium (Sr) and barium (Ba) in an amount of more than 0% and not more than 5%, and molybdenum (Mo) and/or tungsten (W) in an amount of more than 0% and not more than 3%.

Glass composition and display panel using same

A glass composition of the present invention is oxide glass and has a composition that satisfies: 60 wt %&#x3c;BO&#x3c;78 wt %, 15 wt %&#x3c;ZnO&#x2266;24 wt %, 6 wt %&#x2266;RO&#x2266;16 wt %, 1 wt %&#x2266;MO&#x3c;17 wt %, and 0 wt %&#x2266;SiO&#x2266;10 wt %, where R denotes at least one selected from Li, Na, and K, and M indicates at least one selected from Mg, Ca, Sr, and Ba. A display panel of the present invention is formed using such a glass composition of the present invention.

A plasma display panel of the present invention includes display electrodes and address electrodes that cross each other. The electrode to be covered with the first dielectric layer contains at least one selected from silver and copper. The first glass contains BiO. The first glass further contains 0 to 4 wt % of MoOand 0 to 4 wt % of WO, and the total of the contents of MoOand WOthat are contained in the first glass is in a range of 0.1 to 8 wt %. The first glass may contain, as components thereof: 0 to 15 wt % SiO; 10 to 50 wt % BO; 15 to 50 wt % ZnO; 0 to 10 wt % AlO; 2 to 40 wt % BiO; 0 to 5 wt % MgO; 5 to 38 wt % CaO+SrO+BaO; 0 to 4 wt % MoO; and 0 to 4 wt % WO, and the total of the contents of MoOand WOthat are contained in the first glass is in the range of 0.1 to 8 wt %.

Plasma display panel and method of producing the same

Growing community of inventors

Osaka, Japan

Osamu Inoue