Patent application number | Description | Published |
20100255350 | GLASS FOR INFORMATION RECORDING MEDIUM SUBSTRATE, GLASS SUBSTRATE FOR INFORMATION RECORDING MEDIUM AND MAGNETIC DISK - To provide glass for an information recording medium substrate, which is excellent in the acid resistance and weather resistance. | 10-07-2010 |
20110123710 | PROCESS FOR PRODUCING GLASS SUBSTRATE FOR INFORMATION RECORDING MEDIUM - To provide a process to improve acid resistance of a glass substrate for an information recording medium. | 05-26-2011 |
20110123833 | GLASS SUBSTRATE FOR INFORMATION RECORDING MEDIUM AND MAGNETIC DISK - To provide a glass for an information recording medium substrate, which is excellent in weather resistance. | 05-26-2011 |
20110159318 | GLASS SUBSTRATE FOR INFORMATION RECORDING MEDIUM AND MAGNETIC DISK - A glass substrate for an information recording medium, comprising an alkali aluminosilicate glass, wherein the β—OH value is at least 0.20 mm | 06-30-2011 |
20120297829 | METHOD FOR PRODUCING CHEMICALLY TEMPERED GLASS - To provide a method for producing chemically tempered glass, whereby frequency of replacement of the molten salt can be reduced. A method for producing chemically tempered glass, which comprises repeating ion exchange treatment of immersing glass in a molten salt, wherein the glass comprises, as represented by mole percentage, from 61 to 77% of SiO | 11-29-2012 |
20130209773 | GLASS FOR CHEMICAL TEMPERING, CHEMICALLY TEMPERED GLASS, AND GLASS PLATE FOR DISPLAY DEVICE - To provide glass to be used for chemically tempered glass, of which the strength is less likely to be reduced even when indentations are formed thereon. Glass for chemical tempering, which comprises, as represented by mole percentage based on oxides, from 62 to 68% of SiO | 08-15-2013 |
20130302617 | GLASS FOR CHEMICAL TEMPERING AND GLASS PLATE FOR DISPLAY DEVICE - To provide glass to be used for chemically tempered glass which is hardly broken even when flawed. | 11-14-2013 |
20150126354 | GLASS FOR CHEMICAL TEMPERING, CHEMICALLY TEMPERED GLASS, AND GLASS PLATE FOR DISPLAY DEVICE - To provide glass to be used for chemically tempered glass, of which the strength is less likely to be reduced even when indentations are formed thereon. Glass for chemical tempering, which comprises, as represented by mole percentage based on oxides, from 62 to 68% of SiO | 05-07-2015 |