Inventor
SAKAMOTO YASUYOSHI
JP10 patents
Patents
10 patentsUSD526667SAug 15, 2006
Sprue cutting punch for a disc-molding die
SEIKO GIKEN KK19 citations89
US5388982AFeb 14, 1995
Injection molding die mounted on an injection molding machine for molding optical disc base boards
SEIKO GIKEN KK12 citations72
US5693348ADec 2, 1997
Disc molding die
SEIKO GIKEN KK7 citations71
US6558152B2May 6, 2003
Disc-molding mold
SEIKO GIKEN KK8 citations67
US7270535B2Sep 18, 2007
Disc-molding mold, molded product, molding machine and disk-shaped member
SEIKO GIKEN KK8 citations66
USD521032SMay 16, 2006
Sprue bush for a disc-molding die
SEIKO GIKEN KK4 citations60
USD521033SMay 16, 2006
Inner stamper holder for a disc-molding die
SEIKO GIKEN KK2 citations60
US5773040AJun 30, 1998
Disc molding die
SEIKO GIKEN KK5 citations60
USD528572SSep 19, 2006
Moving side bush for a disc-molding die
SEIKO GIKEN KK0 citations49
USD520034SMay 2, 2006
Cavity ring for a disc-molding die
SEIKO GIKEN KK0 citations49