Patents by Inventor Masayo Matsuoka

Masayo Matsuoka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Blue Emitting Alkaline Earth Chlorophosphate Phosphor for Cold Cathode Fluorescent Lamp, and Cold Cathode Fluorescent Lamp and Color Liquid Crystal Display Using Same
    Publication number: 20090002603
    Abstract: This invention provides an alkaline earth chlorophosphate phosphor for a blue light emitting cold cathode fluorescent lamp, represented by (Sr10-k-l-m-nBakCalMgmEun)(PO4)6Cl2 wherein 0<k?1.5, 0?1?1.2, 0?m?0.25 and 0.05?n?0.3, a cold cathode fluorescent lamp using a blue light emitting phosphor represented by (Sr10-k-l-m-nBakCalMgmEun)(PO4)6Cl2 wherein 0?k?1.5, 0?1?1.2, 0?m?0.25 and 0.05?n?0.3, and a color liquid crystal display device using the lamp as backlight. The phosphor causes no significant lowering in luminescence brightness over time and no significant change in luminescent chromaticity over time under excitation with ultraviolet light at a wavelength of 180 to 300 nm and, particularly when used as backlight for a liquid crystal display, can realize image display with a wide color reproduction range.
    Type: Application
    Filed: December 26, 2006
    Publication date: January 1, 2009
    Applicant: Kasei Optonix, Ltd
    Inventors: Reiji Otsuka, Masayo Matsuoka