Kabushiki Kaisha Toshiba

Toshiba Infrastructure Systems & Solutions Corporation

Toshiba Tec Kabushiki Kaisha

Hiroki Iwanaga

Katsuyuki Naito

Akio Amano

Fumihiko Aiga

Seizaburo Shimizu

Yutaka Nakai

Shintaro Enomoto

Takahiro Sato

Aira Hotta

Kenji Miyazaki

Kazuyuki Sunohara

Masao Tanaka

Naomi Shida

Akihiko Ono

Masahiro Hosoya

Atsushi Sugahara

Hideyuki Nakao

Mitsunaga Saito

Ryozo Akiyama

Yuko Kizu

Haruhi Oooka

Kenji Shimomura

Masayuki Oguchi

Shinji Saito

Masayuki Saito

Hideto Furuyama

Jun Tamura

Rei Hasegawa

Kazushige Yamamoto

Shinji Murai

Kei Kaneko

Naoko Kihara

Takashi Kishi

Rei Hashimoto

Shuzo Hirahara

Takuya Iwasaki

Michihiko Inaba

Teruo Murakami

Masaki Okajima

Yasushi Mori

Kazuaki Ootsuka

Kazuaki Otsuka

Kimito Sakai

Junichi Washizuka

The present embodiment provides a composition containing a rare earth complex and a fluorine-based solvent, which can also be used in a fluorescent flaw inspection method. A rare earth complex-containing composition according to the present embodiment is a rare earth complex-containing composition that contains a rare earth complex containing: a rare earth ion; two or more phosphine oxide ligands having different structures; and a β-diketone ligand, the rare earth complex being dissolved in a fluorine-based solvent. The present embodiment also relates to a fluorescent flaw inspection method using the same.

Rare earth complex-containing composition and fluorescent penetrant inspection method using same

The present embodiments provide a light wavelength conversion medium excellent in emission intensity and durability, and also a light wavelength conversion medium-forming composition used for forming that medium. The conversion medium according to the embodiment comprises a rare earth complex comprising a rare earth ion and a nonionic ligand, a nonionic compound substitutable for the nonionic ligand, and a polymer or a solvent.

Light wavelength conversion medium and composition for forming light wavelength conversion medium

The embodiments provide a fluorescent rare earth complex having strong emission intensity and excellent durability, and also provide a security medium using the complex. The rare earth complex according to the embodiment comprises a rare earth ion, a diphosphine dioxide ligand and a β-diketone ligand wherein two phosphorus atoms contained in the diphosphine dioxide ligand individually have substituents different from each other.

Fluorescent rare earth complex and security medium using the same

The embodiments provide a fluorescent rare earth complex having strong emission intensity and excellent durability, and also provide a security medium using the complex. The rare earth complex according to the embodiment comprises a rare earth ion, a diphosphine dioxide ligand and a &#x3b2;-diketone ligand wherein two phosphorus atoms contained in the diphosphine dioxide ligand individually have substituents different from each other.

Disclosed herein is a fluorescent compound represented by the following general formula and having fluorescence characteristics that vary in the presence of a subject substance, wherein Rand Reach independently represent a carboxyl group, or a substituent containing a carboxyl group, and Rand Reach independently represent a hydrogen atom, an alkyl group, an alkoxy group, a halogen atom, a hydroxyl group, a carboxyl group, or a substituent containing a carboxyl group.

Fluorescent compound, fluorescent compound mixture, freshness marker, freshness label, and sensing system

According to one embodiment, a nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode includes a titanium and niobium-containing composite oxide. The nonaqueous electrolyte includes at least one compound selected from compounds represented by the formulas (1) and (2). 

Nonaqueous electrolyte battery, battery pack, and vehicle

An amorphous luminous material, which is substantially composed of only rare earth complex compounds, wherein the compounds are two or more kinds of rare earth complexes, and rare earth metal ions, which are center ions of the two or more kinds of rare earth complexes, are different ions.

Luminous material using fluorescence amorphous solid

According to one embodiment, a polymer material includes two or more different repeating units each containing a quinoxaline backbone. At least one of the repeating units includes a halogen atom.

Polymer material, solar cell using the same, and solar photovoltaic generation system

Embodiments of the present invention provide an organic semiconductor excellent in the photoelectric conversion efficiency and also a solar cell using the same. This organic semiconductor has a polymer structure comprising a repeating unit represented by the following formula (I): -[A-D]- (I). In the formula, A is a structure represented by and D is a structure having a benzodithiophene skeleton or the like. In the above, Ris independently H, a substituted or unsubstituted straight-chain or branched-chain alkyl group, or a substituted or unsubstituted straight-chain or branched-chain alkoxy group. The solar cell according to an embodiment of the present invention comprises an active layer containing the organic semiconductor.

Organic compound and solar cell using the same

A solar cell module according to an embodiment includes a solar cell device and a support structure supporting the solar cell device. The solar cell device is a belt-like solar cell device including first portions arranged in one direction such that major surfaces thereof face each other, and a second portion interposed between the first portions. The edges of the first portions that correspond to a pair of long sides of the solar cell device are parallel to each other. Two adjacent first portions incline forwardly and backwardly with respect to the one direction. The second portion includes one or more planar or curved surfaces to connect the two adjacent first portions to each other.

Solar cell module

The present invention provides a fluorescent rare earth complex having high solubility to a medium, showing fluorescence of high intensity and possessing excellent durability, and also provides a light-emitting element using that complex. The rare earth complex comprises a rare earth ion and a phosphine oxide ligand, and the phosphine oxide ligand contains a phosphorus atom connecting to at least one phenyl group. In the phenyl group, at least one of the meta-positions is substituted. It is also necessary that the para-position of the phenyl group be not substituted.

Fluorescent rare earth complex, and light-emitting element, security medium and lighting device using the same

A lighting device including a substrate, and at least three light emitting elements mounted on the substrate, each having an upper light emitting surface in rectangular shape and side light emitting surfaces in rectangular shape. The light emitting elements are positioned to surround a light-gathering region where the light emitting elements are not located, and one of the side light emitting surfaces of each light emitting element is directed to face approximately a central portion of the light-gathering region.

Lighting device, image pickup apparatus and portable terminal unit

The present invention provides a fluorescent substance excellent in emission intensity and in emission efficiency. The substance can be excited by light at a longer wavelength than ever. The present invention also provides a luminous composition comprising the fluorescent substance and a light-emitting element using the substance. The fluorescent substance comprises a rare earth metal and a phosphine oxide ligand which coordinates to said rare earth metal and said ligand containing at least one siloxane bond in its structure. The fluorescent substance can be produced from a reaction between a compound having a siloxane bond and a rare earth complex coordinated by a phosphine oxide ligand. The luminous composition comprises the fluorescent substance.

Fluorescent substance containing rare earth metal, luminous composition comprising the same, process for manufacturing thereof, and light-emitting element comprising the fluorescent substance

A light-emitting device assured of high reliability, high efficiency and high color rendering, is provided. The light-emitting device includes a frame, an LED chip provided on the frame, and a fluorescent layer containing an inorganic fluorescent material and an organic fluorescent material and being provided on the LED chip. In the fluorescent layer, the concentration of the inorganic fluorescent material is decreased toward the top from the bottom of the fluorescent layer, and the concentration of the organic fluorescent material is decreased toward the bottom from the top of the fluorescent layer.

Light-emitting device, method for producing the same and fluorescent device

Growing community of inventors

Yokohama, Japan

Hiroki Iwanaga