US PATENT SUBCLASS 430 / 270.13
.~.~.~.~ Which changes phase during recording

Current as of: June, 1999
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430 /   HD   RADIATION IMAGERY CHEMISTRY: PROCESS, COMPOSITION, OR PRODUCT THEREOF

269  DF  IMAGING AFFECTING PHYSICAL PROPERTY OF RADIATION SENSITIVE MATERIAL, OR PRODUCING NONPLANAR OR PRINTING SURFACE - PROCESS, COMPOSITION, OR PRODUCT {17}
270.1  DF  .~ Radiation sensitive composition or product or process of making {5}
270.11  DF  .~.~ Optical recording nonstructural layered product having a radiation sensitive composition layer claimed or solely disclosed as optically reorderable and optically machine readable {2}
270.12  DF  .~.~.~ Having read-write layer of 100 per cent inorganic composition {1}
270.13.~.~.~.~ Which changes phase during recording

DEFINITION

Classification: 430/270.13

Which changes phase during recording:

(under subclass 270.12) Subject matter wherein at least some of the inorganic material is capable of undergoing a phase change upon optical recording (e.g., crystalline to amorphous, etc.).