Inventor
SAKAI YOSHIMI
JP11 patents
⚠️ This page may combine multiple inventors who share the name “SAKAI YOSHIMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TDK CORP
9 patentsUS5648105AJul 15, 1997
Apparatus for making a plurality of optical record disc subtrates
TDK CORP16 citations80
US5458821AOct 17, 1995
Method of making a plurality of optical record disc substrates
TDK CORP9 citations71
US6977107B1Dec 20, 2005
Optical recording medium and method for making the same
TDK CORP9 citations70
US6815029B2Nov 9, 2004
Stamper, mold system, recording medium substrate, recording medium, optical disc substrate, optical disc, and method for producing stamper
TDK CORP2 citations61
US4799120AJan 17, 1989
Guard panel for tape cassettes and method and apparatus for manufacturing the same
TDK CORP2 citations59
US7368156B2May 6, 2008
Method for manufacturing discoid optical record medium and discoid optical record medium
TDK CORP1 citations51
US6835435B2Dec 28, 2004
Stamper, mold system, recording medium substrate, recording medium, optical disc substrate, optical disc, and method for producing stamper
TDK CORP1 citations51
US7205038B2Apr 17, 2007
Optical recording medium and method for manufacturing the same
TDK CORP1 citations50
US7052759B2May 30, 2006
Optical recording medium
TDK CORP1 citations50