Protective layer for magnetic disk
Protective layers for optical coatings
Protective overcoating for magnetic recording discs and method f
Pure carbon isotropic alloy of allotropic forms of carbon...
Pyrocarbon and process for depositing pyrocarbon coatings
Pyrolytic carbon coated carbon fiber reinforced carbon...
Pyrolytic graphite monocromator and method for improving...
Pyrolyzed pitch coatings for carbon fiber