Optical recording medium and production thereof

Details Optical recording medium and production thereof Optical recording medium and production thereof

1993-11-12

1996-04-02

Ryan, Patrick J.

Stock material or miscellaneous articles

Circular sheet or circular blank

428 642, 428 644, 428 648, 428 651, 428913, 43027014, 4304951, 430945, 369283, 369288, B32B 300

Patent

active

055038891

ABSTRACT:
An optical recording medium has a substrate, a recording layer having a bare portion at the end face, and a protecting layer. The bare portion of the recording layer and the vicinity thereof are resinified so as to be substantially incapable of optical recording.

REFERENCES:
patent: 4432002 (1984-02-01), Ando
patent: 5026623 (1991-06-01), Imataki et al.
patent: 5079127 (1992-01-01), Katagiri et al.
patent: 5102709 (1992-04-01), Tachibana
patent: 5204152 (1993-04-01), Yoshizawa
patent: 5204153 (1993-04-01), Matsui
patent: 5316814 (1994-05-01), Sawada

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