Inventor
KUBO MASAE
JP21 patents
⚠️ This page may combine multiple inventors who share the name “KUBO MASAE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI CHEM CORP
10 patentsUS6128273AOct 3, 2000
Optical phase-change disc
MITSUBISHI CHEM CORP80 citations95
US6115353ASep 5, 2000
Optical phase-change disc having a grooved substrate, with the groove having specific wobbled and non-wobbled regions
MITSUBISHI CHEM CORP53 citations95
US6115352ASep 5, 2000
Optical information recording medium capable of rewriting data at low reflectance and deterioration condition
MITSUBISHI CHEM CORP63 citations95
US6108295AAug 22, 2000
Optical information recording medium
MITSUBISHI CHEM CORP60 citations95
US6004646ADec 21, 1999
Optical information recording medium
MITSUBISHI CHEM CORP78 citations95
US5862123AJan 19, 1999
Optical phase-change disc
MITSUBISHI CHEM CORP59 citations95
US6580678B2Jun 17, 2003
Rewritable compact disk and manufacturing method thereof
MITSUBISHI CHEM CORP107 citations94
US7027371B2Apr 11, 2006
Rewritable optical recording medium, recording method on the same, and optical disc recording/retrieving apparatus
MITSUBISHI CHEM CORP12 citations92
US5583847ADec 10, 1996
Optical disk having predetermined cross-track signal, cross-track minimum signal, and push-pull signal
MITSUBISHI CHEM CORP37 citations91
US5831963ANov 3, 1998
Optical recording medium having zones wherein the number of sectors per track is constant and method of injection-molding the same
MITSUBISHI CHEM CORP2 citations59
MITSUBISHI KAGAKU MEDIA CO LTD
10 patentsUS7452582B1Nov 18, 2008
Rewritable optical recording medium recording method on the same and optical disc recording/retrieving apparatus
MITSUBISHI KAGAKU MEDIA CO LTD16 citations92
US7345977B2Mar 18, 2008
Recording and retrieving method on rewritable optical recording medium
MITSUBISHI KAGAKU MEDIA CO LTD4 citations73
US8018823B2Sep 13, 2011
Optical recording medium having a relation between groove widths, groove depths and track pitches
MITSUBISHI KAGAKU MEDIA CO LTD2 citations62
US7561502B2Jul 14, 2009
Rewritable optical recording medium, recording method on the same, and optical disc recording/retrieving apparatus
MITSUBISHI KAGAKU MEDIA CO LTD1 citations62
US7408852B2Aug 5, 2008
Rewritable optical recording medium, recording method on the same, and optical disc recording/retrieving apparatus
MITSUBISHI KAGAKU MEDIA CO LTD2 citations62
US7313070B2Dec 25, 2007
Rewritable optical recording medium and optical recording method
MITSUBISHI KAGAKU MEDIA CO LTD3 citations62
US7277376B2Oct 2, 2007
Optical recording method
MITSUBISHI KAGAKU MEDIA CO LTD5 citations62
US7333414B2Feb 19, 2008
Rewritable optical recording medium, recording method on the same, and optical disc recording/retrieving apparatus
MITSUBISHI KAGAKU MEDIA CO LTD0 citations52
US7858167B2Dec 28, 2010
Rewritable optical recording medium and optical recording method
MITSUBISHI KAGAKU MEDIA CO LTD0 citations51
US7609603B2Oct 27, 2009
Rewritable optical recording medium and optical recording method
MITSUBISHI KAGAKU MEDIA CO LTD0 citations51