Inventor
SHOJIMA TOSHIKI
JP2 patents
Patents
2 patentsUS5156860AOct 20, 1992
Apparatus for manufacturing an optical disk substrate by injection molding
IDEMITSU PETROCHEMICAL CO14 citations67
US5059461AOct 22, 1991
Optical disk substrate, optical information-storage medium, and process and apparatus for manufacturing the optical disk substrate
IDEMITSU PETROCHEMICAL CO4 citations56