Nec Corporation

Nec Lighting, Ltd.

Tottori University

Public University Corporation Nagoya City University

Maki Minamoto

Seiichiro Fujioka

Hisashi Yoshida

Akimichi Morita

Yosuke Nishikage

Satoshi Arai

Toshihiko Nishiyama

Koji Sakata

Takashi Fukaumi

Hiromichi Taniguchi

Kazuya Ito

Koutoku Ohmi

Kazuaki Tsuji

A fluorescent substance capable of remarkably increasing the luminous intensity of a I-III-VIchalcopyrite type compound having a large band gap among chalcopyrite type compounds with manganese as luminescence centers, and being favorably used for a lighting device using a light emitting diode, a light emitting element of a display device or the like, a light emitting device such as fluorescent lamps such as a cold cathode fluorescent lamp and a hot cathode fluorescent lamp, as a fluorescent substance generating fluorescence by ultraviolet excitation, is provided. The fluorescent substance is expressed by composition formula (1)Cu(AlGa)(SSe):Mn,Si&#x2003;&#x2003;(1)(wherein x represents a number satisfying 0&#x2266;x&#x2266;0.4, and y represents a number satisfying 0&#x2266;y&#x2266;0.4), including manganese as a luminescence center atom.

Fluorescent substance and light emitting device using the same

An external-electrode discharge lamp has a light-permeable, electrically insulative outer casing having a closed hollow space defined therein. A discharge medium is sealed in the outer casing. An external electrode is disposed on an outer surface of the outer casing for causing a dielectric barrier discharge in the discharge medium. The external electrode comprises a plate of an electrically conductive material and is brazed to the outer surface of the outer casing by a brazing material disposed fully circumferentially on the outer surface of the outer casing.

External-electrode discharge lamp with no light leakage from external electrode portion

An instrument for ultraviolet irradiation includes a plurality of light-shielding filters each having different transmittances for ultraviolet radiation emitted from a light source for irradiating the skin of a patient with ultraviolet radiation, and a support member for supporting the light-shielding filters.

Instrument for ultraviolet irradiation and ultraviolet irradiating apparatus

A narrow-band UV-B phototherapeutic device includes: a light source unit that includes a fluorescent lamp of planar structure that is the ultraviolet light source for emitting narrow-band UV-B; a power supply for causing the fluorescent lamp to emit light; and a control unit for controlling the light emission of the fluorescent lamp.

Narrow-band UV-B phototherapeutic device

In an external electrode type discharge lamp, a gadolinium oxide film obtained by baking solution containing at least one of gadolinium octate and gadolinium propionate is provided in a portion including at least a portion corresponding to an external electrode.

External electrode type discharge lamp and method of manufacturing the same

A phosphor represented by the formula (1&minus;x)CaO.EU(O).yMgO.nSiO , wherein x, y and n represent number of moles, respectively, provides increased initial luminous intensity and exhibits superior sustainability of luminous intensity over long periods of use in a fluorescent lamp including the above phosphor.

Phosphors for fluorescent lamps

The present invention provides a solid electrolytic capacitor comprising a metal having a dielectric oxide film formed thereon, a conductive polymer compound layer formed on said dielectric oxide film, a conductive paste layer formed on said conductive polymer compound layer, a molded resin sheathing having all of the above members buried therein, and a pair of electrodes connected to said metal and said conductive paste layer, respectively, in which capacitor an antioxidant is scattered, in the form of particles, in at least one of said conductive polymer compound layer, said conductive paste layer and the interface between the conductive polymer compound layer and the conductive paste layer; and a process for production of said capacitor.

Growing community of inventors

Shinagawa-ku, Japan

Maki Minamoto