| NIHON YAMAMURA GLASS CO., LTD. Patent applications |
| Patent application number | Title | Published |
|---|
| 20110235176 | POLARIZING GLASS HAVING HIGH EXTINCTION RATIO - There are disclosed an improved method for production of a polarizing glass having a high extinction ratio by facilitating control of the diameter of silver halide particles in a mother glass with high Ag concentration, and a polarizing glass produced by the method. The glass is a polarizing glass having dispersed and oriented geometrically anisotropic metallic silver particles at least in its surface layer, which is characterized by not containing TiO | 09-29-2011 |
| 20110053753 | GLASS COMPOSITION FOR SEALING - Disclosed is a glass composition which is adapted to use in providing a hermetic seal between a metal and a ceramic, a metal and a metal, and a ceramic and a ceramic, to form crystallized glass having high strength and high thermal expansion which allow it to be used at high temperatures of 950° C. and over. The glass composition is substantially free of alkali metals, and contains, as calculated as oxide, 15-30 mass % of SiO | 03-03-2011 |
| 20090318278 | Composition for sealing glass - A powder composition for forming a highly expansible crystallized glass substantially free of alkali metals is disclosed, which composition can provide, through its firing at a temperature of not more than 900° C., a seal between metal and ceramic. The powder composition is a powder composition for the formation of a sealing crystallized glass which is substantially free of alkali metals and consists of the powder of a glass containing, calculated as oxides, SiO | 12-24-2009 |
| 20090238991 | Method for preparation of forming mold having baked layer of lubricating mold-releasing agent - Disclosed is a method for preparation of a glass forming mold having a layer of a lubricating mold-releasing agent with reduced fluctuation in lubricating property, by baking the layer of the lubricating mold-releasing agent in a manner that prevents defects like blistering or peeling of the layer, or surface roughening. The method is a method for preparation of a glass forming mold having a baked layer of a lubricating mold-releasing agent on the mold surface thereof, wherein the method comprises heating the mold surface with an applied lubricating mold-releasing agent thereon by exposing the mold surface to a high frequency magnetic flux until the temperature of the mold surface reaches a predetermined baking temperature. | 09-24-2009 |
