Inventor
ONIZAWA YOSHIO
JP5 patents
Patents
5 patentsUS4741689AMay 3, 1988
Injection mold for an optical disk
DAICEL CHEM24 citations80
US4986938AJan 22, 1991
Process for producing plastic substrate for optical disks
DAICEL CHEM21 citations79
US4841501AJun 20, 1989
Plastic substrate for optical disk and process for producing the same
DAICEL CHEM6 citations71
US4627809ADec 9, 1986
Metal mold and stamper for injection molding of a plastic disc for a high-density information recording carrier
DAICEL CHEM14 citations70
US4764331AAug 16, 1988
Large diameter optical disk substrate made of polycarbonate
DAICEL CHEM12 citations69