Patent application number | Description | Published |
20110068678 | FLUORESCENT LAMP - The present invention relates to a fluorescent lamp including: a discharge space containing a discharge gas and being surrounded by a glass; a discharge electrode; a phosphor; and a mayenite type compound provided on at least a part of an inner surface contacting the discharge gas. According to the fluorescent lamp of the present invention, a fluorescent lamp that has good luminous efficiency of ultraviolet ray from a discharge gas, has good discharge characteristics such as discharge starting voltage and discharge sustaining voltage in a fluorescent lamp, is chemically stable, has excellent oxidation resistance, has excellent sputtering resistance, and can achieve electric power saving is provided. | 03-24-2011 |
20110155970 | MAYENITE-TYPE COMPOUND AND PROCESS FOR PRODUCTION OF SAME - The present invention relates to a mayenite-type compound in which a part of Ca of a mayenite-type compound containing Ca, Al and oxygen is substituted by at least one kind of an atom M selected from the group consisting of Be, Mg and Sr, in which the mayenite-type compound has an atom number ratio represented by M/(Ca+M) of from 0.01 to 0.50, and at least a part of free oxygen ions in a mayenite-type crystal structure are substituted by anions of an atom having electron affinity smaller than that of an oxygen atom. | 06-30-2011 |
20110278509 | METHOD FOR PREPARING MAYENITE-CONTAINING OXIDE AND METHOD FOR PREPARING ELECTROCONDUCTIVE MAYENITE-CONTAINING OXIDE - To provide a method for preparing a mayenite-containing oxide containing a mayenite type compound and having a hydride ion density of at least 1×10 | 11-17-2011 |
20120153805 | ELECTRODE FOR DISCHARGE LAMP AND MANUFACTURING METHOD THEREOF - An electrode for a discharge lamp includes an electrode body configured to emit thermal electrons. The electrode body is formed by a sintered body of a conductive mayenite compound. | 06-21-2012 |
20120153806 | ELECTRODE FOR DISCHARGE LAMP, METHOD OF MANUFACTURING ELECTRODE FOR DISCHARGE LAMP, AND DISCHARGE LAMP - An electrode for a discharge lamp is provided with a mayenite compound in at least a part of the electrode that emits secondary electrons, and a surface of a surface layer of the mayenite compound is plasma treated. | 06-21-2012 |
20120153807 | ELECTRODE FOR DISCHARGE LAMP AND MANUFACTURING METHOD THEREOF - An electrode for a fluorescent lamp includes a filament and an emitter provided on the filament. The emitter includes a mayenite compound. | 06-21-2012 |
20120169225 | ELECTRODE FOR DISCHARGE LAMP, METHOD OF MANUFACTURING ELECTRODE FOR DISCHARGE LAMP, AND DISCHARGE LAMP - An electrode for a discharge lamp is provided with a mayenite compound in at least a part of the electrode that emits secondary electrons, and the mayenite compound is fired in a vacuum atmosphere with an oxygen partial pressure of 10 | 07-05-2012 |
20140061551 | METHOD OF MANUFACTURING CONDUCTIVE MAYENITE COMPOUND - A method of manufacturing an electrical conductive mayenite compound, including, (1) a step of preparing a calcinated powder including calcium oxide and aluminum oxide at a ratio of 13:6 to 11:8 (based on molar ratio as converted to CaO:Al | 03-06-2014 |