Panasonic Intellectual Property Management Co., Ltd.

Shinnosuke Akiyama

Kei Toyota

Riho Moriyama

Masato Mori

Akio Furusawa

Hidetoshi Kitaura

Kiyohiro Hine

Toyota Kei

A ceramic composite having a phosphor particle and a coating layer on the surface of the phosphor particle, in which a matrix crystal structure of the phosphor particle and the coating layer have identical garnet structures, and the thickness of the coating layer is greater than or equal to 0.001 &#x3bc;m and smaller than or equal to 0.450 &#x3bc;m.

Ceramic composite

A phosphor according to the present disclosure has excellent light emission properties in a blue-green region and high color rendering properties. The phosphor is represented by a chemical formula of LuMgZnAlO:Ce, in which when z is in a range of 0.01&#x2264;z&#x2264;0.03, then 0&#x2264;x&#x2264;1.4 and 0&#x2264;y&#x2264;1.4, excluding x=0 and y=0; when z is in a range of is 0.03&#x3c;z&#x2264;0.06, then y&#x3c;0.2 and 0.1&#x2264;x&#x2264;1.4, or x&#x3c;0.2 and 0.1&#x2264;y&#x2264;1.4, or x=0.2 and y=0.2; when z is in a range of 0.06&#x3c;z&#x2264;0.09, then y&#x3c;0.2 and 0.1&#x2264;x&#x3c;1.4, or x&#x3c;0.2 and 0.1&#x2264;y&#x3c;1.4; and when z is in a range of 0.09&#x3c;z&#x2264;0.12, then y&#x3c;0.2 and 0.1&#x2264;x&#x3c;0.9, or x&#x3c;0.2 and 0.1&#x2264;y&#x3c;0.9.

Phosphor and semiconductor light emitting device using the same

A phosphor is represented by a chemical formula of LuMgZnAlO:Ce, in which in a case where z is in a range of 0.01&#x2264;z&#x2264;0.03, x and y respectively satisfy 0&#x3c;x&#x2264;1.4 and 0&#x3c;y&#x2264;1.4, in a case where z is in a range of 0.03&#x3c;z&#x2264;0.06, x and y respectively satisfy y&#x3c;0.2 and 0.1&#x2264;x&#x2264;1.4, x&#x3c;0.2 and 0.1&#x2264;y&#x2264;1.4, or x=0.2 and y=0.2, in a case where z is in a range of 0.06&#x3c;z&#x2264;0.09, x and y respectively satisfy y&#x3c;0.2 and 0.1&#x2264;x&#x3c;1.4, or x&#x3c;0.2 and 0.1&#x2264;y&#x3c;1.4, and in a case where z is in a range of 0.09&#x3c;z&#x2264;0.12, x and y respectively satisfy y&#x3c;0.2 and 0.1&#x2264;x&#x3c;0.9, or x&#x3c;0.2 and 0.1&#x2264;y&#x3c;0.9.

A phosphor has a plate-shaped phosphor, a joining-member, and a light collecting optical member. The light collecting optical member has at least one convex surface and is fixed to the plate-shaped phosphor by the joining-member. The joining-member forms a fillet shape between a surface of the plate-shaped phosphor to which the light collecting optical member is joined and a convex surface of the light collecting optical member. In a case where a height of the fillet shape from the surface of the plate-shaped phosphor to which the light collecting optical member is joined is set as a height X and a maximum distance of the light collecting optical member from the surface of the plate-shaped phosphor to which the light collecting optical member of is joined is set as a maximum distance Y, the height X is equal to or less than &#x2154; of the maximum distance Y.

Phosphor and method for producing same

A red phosphor is expressed by a chemical formula of CaO:Ce, Li, in which a range of x values is 0&#x3c;x&#x3c;0.2, a range of y values is 0&#x2264;y&#x3c;0.2, and a range of z values is 1&#x2212;x&#x2212;y&#x2264;z&#x2264;1&#x2212;x.

Red phosphor and light emitting device using the same

There is provided a solder alloy in which 0.5 mass % or more and 1.25 mass % or less of Sb, In satisfying the following formula (I) or (II) when [Sb] is set as a Sb content percentage (mass %) and [In] is set as an In content percentage (mass %): in a case of 0.5&#x2264;[Sb]&#x2264;1.0, 5.5&#x2264;[In]&#x2264;5.50+1.06[Sb] . . . (I), in a case of 1.0&#x3c;[Sb]&#x2264;1.25, 5.5&#x2264;[In]&#x2264;6.35+0.212[Sb] . . . (II) (in the formula, [Sb] indicates a Sb content percentage (mass %) and [In] indicates an In content percentage (mass %)), 0.5 mass % or more and 1.2 mass % or less of Cu, 0.1 mass % or more and 3.0 mass % or less of Bi, 1.0 mass % or more and 4.0 mass % or less of Ag, and 0 mass % or more and 0.025 mass % or less of Co are contained, and has the remainder consisting essentially of Sn.

Solder alloy and package structure using same

A light emitting element includes a light emitting member that is formed of at least two kinds of an oxide material and has a plate shape; and a light transmitting member that collimates a light emitted from the light emitting member and has a plano-convex shape, in which a contact portion between the light transmitting member and the light emitting member is continuous.

Growing community of inventors

Okayama, Japan

Shinnosuke Akiyama