Inventor
KATAYAMA TSUYOSHI
JP21 patents
⚠️ This page may combine multiple inventors who share the name “KATAYAMA TSUYOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI ELECTRIC CORP
10 patentsUS6147961ANov 14, 2000
Optical disk and optical disk drive device
MITSUBISHI ELECTRIC CORP53 citations96
US5867474AFeb 2, 1999
Optical disk having a continuous information track formed of alterating land/groove revolutions and optical disk drive
MITSUBISHI ELECTRIC CORP52 citations96
US5754506AMay 19, 1998
Optical disk drive and optical disk having address pits for sectors in land and groove tracks
MITSUBISHI ELECTRIC CORP76 citations96
US5848050ADec 8, 1998
Optical disk having a continuous recording track formed of alternating land and groove revolutions
MITSUBISHI ELECTRIC CORP91 citations94
US5892740AApr 6, 1999
Optical disk drive and optical disk having address pits for sectors in land and groove tracks
MITSUBISHI ELECTRIC CORP38 citations92
US5859820AJan 12, 1999
Optical disk drive and optical disk having a continuous information track formed of alternating land and groove revolutions
MITSUBISHI ELECTRIC CORP24 citations92
US6275466B1Aug 14, 2001
Optical disk and optical disk drive device
MITSUBISHI ELECTRIC CORP11 citations82
US6069869AMay 30, 2000
Optical disk and optical disk drive device
MITSUBISHI ELECTRIC CORP14 citations82
US6396799B1May 28, 2002
Optical disk drive device using an optical disk having a continuous information track formed of alternating land/groove revolutions
MITSUBISHI ELECTRIC CORP4 citations74
US6236637B1May 22, 2001
Optical disk and optical disk drive device
MITSUBISHI ELECTRIC CORP4 citations74