Ube Industries, Inc.

Ube Material Industries, Ltd.

Kaoru Takazaki

Toru Inagaki

Jin Amagai

Koichi Fukuda

Kouichi Fukuda

Yuzo Kato

Takuya Shindo

Ryoichi Nomura

Rika Nogita

Masaki Tanaka

Kazuki Yoshihara

Midori Sato

Tatsunori Sakaguchi

Kenji Arima

A basic magnesium sulfate powder according to the present invention has a surface at least partially coated with an inorganic phosphorus compound. The basic magnesium sulfate powder preferably has a phosphorus content of from 0.001 to 5.0 mass %.

Basic magnesium sulfate powder, method for manufacturing basic magnesium sulfate powder, resin composition containing basic magnesium sulfate powder, masterbatch pellet, and molded body

The present invention is a fluorescent material characterized by being represented by a composition of the following formula (1) and having a crystal lattice distortion obtained from a Williamson-Hall plot by X-ray diffraction within the range of 0.0005 to 0.0020.(Sr,Ca,M)MgSiO:Eu&#x2003;&#x2003;formula (1)wherein M is at least one rare earth metal elements selected from the group consisting of Sc, Y, Gd, Tb and La, and 0.01&#x2264;x&#x2264;0.10. Also, the present invention is a light-emitting device including the fluorescent material, and a light source that emits light by irradiating the fluorescent material with excitation light. Furthermore, the present invention is a method for producing the fluorescent material, including the steps of: obtaining an aqueous slurry of a raw material; and spray-drying the aqueous slurry with hot air at 80 to 300&#xb0; C.

Fluorescent material, light-emitting device, and method for producing fluorescent material

A solid light-emitting device comprising a light-emitting semiconductor element and a phosphor dispersed in a sealant, in which the phosphor is exited by the light emitted by the semiconductor element to emit a visible light of a wavelength differing from that of the light emitted by the semiconductor element and is a silicate phosphor or a phosphor having a hydroxyl group on its surface, and the sealant is a condensation product of a prepolymer produced by condensation of polydimethyl-siloxane having a silanol group at both ends and an oligomer of an alkoxide of a metal or a semimetal or its derivative.

Light-emitting device and organic-inorganic hybrid pre-polymer composition comprising phosphor

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Ube, Japan

Kaoru Takazaki