Inventor
YAMANASHI SHIGEAKI
JP4 patents
Patents
4 patentsUS5829623ANov 3, 1998
Easily openable can lid
TOYO SEIKAN KAISHA LTD51 citations87
US5287718AFeb 22, 1994
Curl forming method for a can end
TOYO SEIKAN KAISHA LTD16 citations69
US4815626AMar 28, 1989
Pull-tab for easy-to-open container lid
TOYO SEIKAN KAISHA LTD11 citations69
US4557397ADec 10, 1985
Pull tab for readily openable can lid
TOYO SEIKAN KAISHA LTD2 citations58