Substrate for information recording medium, information...

Stock material or miscellaneous articles – Magnetic recording component or stock – Magnetic recording media substrate

Reexamination Certificate

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C501S011000

Reexamination Certificate

active

10437430

ABSTRACT:
A substrate for a magnetic recording medium made of a glass or crystallized glass which has a specified spectral light transmittance and a process for producing an information recording medium.

REFERENCES:
patent: 5008176 (1991-04-01), Kondo et al.
patent: 6132843 (2000-10-01), Kuroda et al.
patent: 8-104528 (1996-04-01), None
patent: 9-7154 (1997-01-01), None
patent: 10-81542 (1998-03-01), None
patent: 119042 (2000-04-01), None
patent: 2001-043530 (2001-02-01), None
patent: 180969 (2001-07-01), None
Machine translation of JP 08-104528, Hoya Corp, Apr. 1996.

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