| Patent application number | Description | Published |
|---|
| 20080216514 | Process for the production of glass molded article, optical element produced by the process, and method of treating glass - Provided are a process for the production of a precision press-molded article having a high transmittance and a method of treating a glass to color or decolor the glass, the process comprising heat-treating a press-molded article containing at least one selected from WO | 09-11-2008 |
| 20090042711 | OPTICAL GLASS, PRECISION-PRESSMOLDING PREFORM AND OPTICAL ELEMENT - [Object] To provide a high-refractivity high-dispersion optical glass having excellent stability | 02-12-2009 |
| 20090220824 | Glass substrate for information recording medium and magnetic information recording medium to which the glass substrate is applied - Disclosed are a glass substrate for an information recording medium, having excellent scratch resistance and a light weight and having high fracture toughness, the glass substrate having a fragility index value, measured in water, of 12 μm | 09-03-2009 |
| 20090288450 | Optical glass, precision press-molding preform, process for producing the preform, optical element and process for producing the element - An optical glass having high refractivity and a low sag temperature and having a low-temperature softening property that enables precision press-molding is provided, and the optical glass contains, by mol %, 5 to 50% of B | 11-26-2009 |
| 20090325779 | OPTICAL GLASS - [Problems to be Solved] | 12-31-2009 |
| 20100081555 | OPTICAL GLASS - A high-refractivity low-dispersion optical glass that can be stably supplied and has excellent glass stability and that has coloring reduced, comprises, by mass %,
| 04-01-2010 |
| 20100160141 | Glass substrate for information recording medium and magnetic information recording medium to which the glass substrate is applied - Disclosed are a glass substrate for an information recording medium, having excellent scratch resistance and a light weight and having high fracture toughness, the glass substrate having a fragility index value, measured in water, of 12 μm | 06-24-2010 |
| 20100317507 | OPTICAL GLASS - An optical glass comprising, by mass %,
| 12-16-2010 |
| 20110028300 | OPTICAL GLASS - An optical glass comprising, by mol %,
| 02-03-2011 |
| 20110159322 | GLASS FOR CHEMICAL STRENGTHENING, SUBSTRATE FOR INFORMATION RECORDING MEDIA AND INFORMATION RECORDING MEDIA - A glass for use in chemical reinforcement for use in a substrate of an information recording medium, having a composition comprising, denoted as mol %: | 06-30-2011 |
| 20110289970 | PREFORMS FOR PRECISION PRESS MOLDING, OPTICAL ELEMENTS, AND METHODS OF MANUFACTURING THE SAME - Preforms for precision press molding made of optical glass, optical elements, and methods of manufacturing the same are provided. The preforms are suited to precision press molding having a broad range of dispersion characteristics, a low glass transition temperature, a low sag point, and good resistance to devitrification while containing no PbO. The optical element is obtained by precision press molding the preform. One example of the preform has a refractive index (nd) of greater than or equal to 1.7 and an Abbé number (νd) of less than or equal to 32. The other example of the preform has an Abbé number (νd) exceeding 32. | 12-01-2011 |
| 20120100981 | OPTICAL GLASS - An optical glass that is an oxide glass having a very high refractive index in spite of its low-dispersion property, having excellent glass stability and having less susceptibility to coloring. | 04-26-2012 |
| 20120142517 | OPTICAL GLASS - A high-refractivity low-dispersion optical glass that can be stably supplied and has excellent glass stability and that has coloring reduced, composed of in mass %, 5 to 32% of total of SiO | 06-07-2012 |
| 20120151964 | PROCESS FOR THE PRODUCTION OF GLASS MOLDED ARTICLE, OPTICAL ELEMENT PRODUCED BY THE PROCESS, AND METHOD OF TREATING GLASS - Provided are a process for the production of a precision press-molded article having a high transmittance and a method of treating a glass to color or decolor the glass, the process comprising heat-treating a press-molded article containing at least one selected from WO | 06-21-2012 |
| 20120328907 | GLASS FOR USE AS SUBSTRATE FOR INFORMATION RECORDING MEDIUM, SUBSTRATE FOR INFORMATION RECORDING MEDIUM AND INFORMATION RECORDING MEDIUM, AND THEIR PRODUCTION METHODS - According to one aspect of the present invention, provided is glass for use in substrate for information recording medium, which comprises, denoted as molar percentages, a total of 70 to 85 percent of SiO | 12-27-2012 |
| 20130178354 | OPTICAL GLASS - An optical glass that is an oxide glass having a very high refractive index in spite of its low-dispersion property, having excellent glass stability and having less susceptibility to coloring. | 07-11-2013 |
| 20130210604 | OPTICAL GLASS - An optical glass having high-refractivity and low-dispersion properties and containing, by mol %, 0.1 to 40% of SiO | 08-15-2013 |
| 20130270493 | OPTICAL GLASS - An optical glass comprising, by mass %,
| 10-17-2013 |
| 20130288878 | OPTICAL GLASS - A high-refractivity low-dispersion optical glass that can be stably supplied and has excellent glass stability and that has coloring reduced, composed of in mass %, 5 to 32% of total of SiO | 10-31-2013 |
| 20140302346 | GLASS FOR USE AS SUBSTRATE FOR INFORMATION RECORDING MEDIUM, SUBSTRATEFOR INFORMATION RECORDING MEDIUM AND INFORMATION RECORDING MEDIUM, ANDTHEIR PRODUCTION METHODS - According to one aspect of the present invention, provided is glass for use in substrate for information recording medium, which comprises, denoted as molar percentages, a total of 70 to 85 percent of SiO | 10-09-2014 |
