Inventor
KAWASHIMA KEIICHI
JP10 patents
⚠️ This page may combine multiple inventors who share the name “KAWASHIMA KEIICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
8 patentsUS6678227B1Jan 13, 2004
Simultaneous recording and reproduction apparatus and simultaneous multi-channel reproduction apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD56 citations96
US7095688B2Aug 22, 2006
Simultaneous recording and reproduction apparatus and simultaneous multi-channel reproduction apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD22 citations92
US6567350B1May 20, 2003
Method for adjusting control operation in an optical disc recording device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations73
US7092333B2Aug 15, 2006
Device and program for checking optical disks
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations60
US7023779B2Apr 4, 2006
Optical disc, recording device, and recording device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations60
US7012869B2Mar 14, 2006
Optical disc, reproduction apparatus, and disc identifier selecting apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations51
US7012879B2Mar 14, 2006
Optical disc, reproduction apparatus, and disc identifier selecting apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations51
US6901042B2May 31, 2005
Optical disc, having a certification pit for certifying that data recording thereon is original
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations51