Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method of manufacturing multilayer optical information recording medium










Image Number 17 for United States Patent #7497916.

When a separation layer is formed using a stamper between a substrate and the stamper on a thick substrate, on the surface of which a rewritable recording multilayer film provided with signal guide grooves or pits and the signal guide grooves or pits are transferred from the stamper to the surface, variations in the thickness of the separation layer are produced due to unevenness of the distance between the stamper and the substrate.The surface of the kth signal recording layer of the kth signal substrate is shaped parallel to the surface with the guide grooves and pits of the (k-1)th signal recording layer on the (k-1)th stamper, a (k-1)th separation layer is formed between the two and then the (k-1)th stamper is peeled off. The distance between the surface with the guide grooves and pits of the (k-1)th signal recording layer and the kth signal recording layer becomes uniform, and therefore the thickness of the (k-1)th separation layer can be kept uniform.








 
 
  Recently Added Patents
Real-time virtual endoscopy
Method for detecting directions of regularity in a two-dimensional image
Solar energy converter with improved photovoltaic efficiency, frequency conversion and thermal management permitting super highly concentrated collection
Image descriptor quantization
Invisible fence battery charger
System and method for controlling device location determination
Clock face
  Randomly Featured Patents
3-Phenoxypropylamine derivatives
Photographic apparatus for processing large format, self-developing film unit
Wristwatch
Illuminated sign
Method and apparatus for providing in-band messaging within a video on demand environment
Cradle cover for a vehicle entertainment system
Non-return valve
Multi-standard decompression and/or compression device
Method of sanitizing a polluted area, particularly an unregulated contaminant-containing refuse dump
Method for processing auxiliary information in a video system