| Patent application number | Description | Published |
| 20090246441 | System and Method for Photobleaching of Optical Media - A photobleachable ink composition having: at least one light-sensitive optical-state change material; at least one bleaching agent; at least one ionic liquid plasticizer; at least one solvent; and at least one binder material; wherein the ink composition has a viscosity between about 0.1 centipoise and about 10,000 centipoise, and a maximum optical absorbance in a range from about 200 nanometers to about 800 nanometers; and wherein said ink composition is capable of change from a first optical state to a second optical state upon exposure to light. | 10-01-2009 |
| 20090263612 | System and Method for Photobleaching of Optical Media - A photobleachable ink composition having: at least one light-sensitive optical-state change material; at least one bleaching accelerant; at least one solvent; and at least one binder material; wherein the ink composition has a viscosity between about 0.1 centipoise and about 10,000 centipoise, and a maximum optical absorbance in a range from about 200 nanometers to about 800 nanometers; and wherein the ink composition is capable of change from a first optical state to a second optical state upon exposure to light. The composition may also include a plasticizer. | 10-22-2009 |
| 20100302927 | OPTICAL DATA STORAGE MEDIUM AND METHODS FOR USING THE SAME - There are provided an optical data storage medium and methods of optical data storage using the same. The optical data storage medium comprises a non-linear sensitizer capable of absorbing actinic radiation to cause upper triplet energy transfer to a reactant that undergoes a photochemical change upon triplet excitation. | 12-02-2010 |
| 20110051586 | OPTICAL DATA STORAGE MEDIA AND METHODS FOR USING THE SAME - There are provided optical data storage media and methods of optical data storage using the same. The optical data storage media comprises a non-linear sensitizer capable of absorbing actinic radiation to cause upper triplet energy transfer to a reactant that undergoes change upon triplet excitation. The refractive index change (Δn) of the medium is at least about 0.005, or even at least about 0.05. | 03-03-2011 |
| 20110053054 | COMPOSITIONS, OPTICAL DATA STORAGE MEDIA AND METHODS FOR USING THE OPTICAL DATA STORAGE MEDIA - There are provided compositions, optical data storage media and methods of using the optical data storage. The compositions comprise a non-linear sensitizer comprising one or more platinum ethynyl complexes capable of absorbing actinic radiation to cause upper triplet energy transfer to a reactant that undergoes a photochemical change upon triplet excitation. | 03-03-2011 |
| 20110053055 | COMPOSITIONS, OPTICAL DATA STORAGE MEDIA AND METHODS FOR USING THE OPTICAL DATA STORAGE MEDIA - There are provided compositions, optical data storage media and methods of using the optical data storage media. The compositions comprise a non-linear sensitizer comprising one or more subphthalocyanine reverse saturable absorbers capable of absorbing actinic radiation to cause upper triplet energy transfer to a reactant that undergoes a photochemical change upon triplet excitation. | 03-03-2011 |
| 20110080823 | DISC STRUCTURE FOR BIT-WISE HOLOGRAPHIC STORAGE - An optical article is provided. The optical article includes a first layer. The first layer includes an active holographic layer configured to store holographic data. The first layer has a first surface and a second surface. A second layer includes a low birefringence material. The second layer also has a first surface and a second surface. Guide grooves are present in any one of the first layer or the second layer. In certain embodiments, the article may further include a reflective layer, an anti-reflective layer, a barrier layer, and a combination thereof. | 04-07-2011 |
| 20110081602 | OPTICAL DATA STORAGE MEDIA AND METHODS FOR USING THE SAME - An optical data storage medium is provided. The optical data storage medium includes a polymer matrix; a reactant capable of undergoing a change upon triplet excitation, thereby causing a refractive index change; and a non-linear sensitizer capable of absorbing actinic radiation to cause upper triplet energy transfer to said reactant. The refractive index change capacity of the medium is at least about 0.1. The reactant comprises polyvinyl chlorocinnamate, polyvinyl methoxycinnamate, or a combination thereof. | 04-07-2011 |