Panasonic Corporation

Mituru Harada

Seigo Shiraishi

Kazuhiko Sugimoto

Kojiro Okuyama

Yayoi Kitamura

Noriyuki Matsusue

Shinichiro Ishino

Tomoki Masuda

Hirotaka Nanno

Yuko Kawanami

Shoji Hoshitoku

Naohiro Takashima

Takasi Oobayasi

The present invention provides a blue phosphor having high luminance and showing less luminance degradation during driving of a light-emitting device. The present invention is a blue phosphor that includes: an alkaline earth metal aluminate represented by a general formula aBaO.bSrO.(1&#x2212;a&#x2212;b)EuO.cMgO.dAlO, where 0.70&#x2266;a&#x2266;0.95, 0&#x2266;b&#x2266;0.15, 0.95&#x2266;c&#x2266;1.15, 9.00&#x2266;d&#x2266;11.00, and a+b&#x2266;0.97 are satisfied; and 0.008 mol to 0.800 mol of MWOwith respect to 1 mol of the aluminate, where M is at least one element selected from a group consisting of Ba, Sr, and Ca.

Blue phosphor, light-emitting device, and plasma display panel

The present invention provides a blue phosphor that exhibits high luminance and shows less luminance degradation during driving of a light-emitting device. The present invention is a blue phosphor represented by the general formula aBaO.bSrO.(1&#x2212;a&#x2212;b)EuO.cMgO.dAlO.eWO, where 0.70&#x2266;a&#x2266;0.95, 0&#x2266;b&#x2266;0.15, 0.95&#x2266;c&#x2266;1.15, 9.00&#x2266;d&#x2266;11.00, 0.001&#x2266;e&#x2266;0.100, and a+b&#x2266;0.97 are satisfied. In this blue phosphor, two peaks whose tops are located in a range of diffraction angle 2&#x3b8;=13.0 to 13.6 degrees are present in an X-ray diffraction pattern obtained by measurement on the blue phosphor using an X-ray with a wavelength of 0.774 &#x212b;.

An ink for an organic electroluminescent device includes a functional material, a first solvent, a second solvent, and a third solvent. The functional material is for forming a functional layer of the organic electroluminescent device. The first solvent is for dissolving the functional material. The second solvent has a diester backbone and a second boiling point that is at most equal to a first boiling point of the first solvent or greater than the first boiling point of the first solvent by at most 20&#xb0; C. The third solvent is an aliphatic alcohol and has a third boiling point that is less than the first boiling point of the first solvent and less than the second boiling point of the second solvent.

Ink for organic electroluminescent device, manufacturing method of organic electroluminescent device, organic display panel, organic display apparatus, organic electroluminescent apparatus, ink, forming method of functional layer, and organic electroluminescent device

A chip-shaped electronic component includes a substrate and an end face electrode layer provided on an end face of the substrate, in which the end face electrode layer contains a mixed material. The mixed material includes as a conductive particle, a carbon powder, a whisker-like inorganic filler coated with a conductive film, and a flake-like conductive powder. Additionally, an epoxy resin has a weight-average molecular weight between 1,000 and 80,000.

Chip-shaped electronic component

Growing community of inventors

Osaka, Japan

Mituru Harada