Optical recording medium substrate, optical recording medium, and method of manufacturing optical recording medium substrate

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United States of America

PATENT NO 12112781
SERIAL NO

16519426

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Abstract

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There is provided an optical recording medium substrate including a polycarbonate in which an average molecular weight is in a range from 15000 to 16000, and mass per unit volume at 25° C. is in a range from 1.1930 g/cm3 to 1.2000 g/cm3.

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Patent Owner(s)

Patent OwnerAddress
SONY CORPORATIONTOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kikuchi, Minoru Miyagi, JP 36 326
Matsuura, Minoru Miyagi, JP 12 68
Nakayama, Hiroshi Miyagi, JP 291 2750
Takemoto, Hiroyuki Miyagi, JP 99 688

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