Inventor
OGURA YOUICHI
JP22 patents
⚠️ This page may combine multiple inventors who share the name “OGURA YOUICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
14 patentsUS6385239B1May 7, 2002
Adaptive equalizing circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD63 citations95
US6792063B1Sep 14, 2004
Frequency control/phase synchronizing circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD36 citations92
US6542039B1Apr 1, 2003
Phase-locked loop apparatus and method
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD36 citations92
US6674707B2Jan 6, 2004
Digital recorded data reproducing device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD44 citations89
US7433286B2Oct 7, 2008
Jitter detection apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations84
US7339872B2Mar 4, 2008
Optical disc device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations83
US6963528B2Nov 8, 2005
Digital data reproduction apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations83
US7327658B2Feb 5, 2008
Wobble signal processing apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations62
US7254100B2Aug 7, 2007
Optical disk reproducing device selectively using a channel bit frequency or a frequency that is half of the channel bit frequency
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD1 citations62
US7212476B2May 1, 2007
Optical disc reproducing device selectively using a channel bit frequency or a frequency that is half of the channel bit frequency
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations62
US6999394B2Feb 14, 2006
Optical disc playback apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations59
US7525887B2Apr 28, 2009
Playback signal processing apparatus and optical disc device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD1 citations51
US7310292B2Dec 18, 2007
Optical disk reproducing device that demodulates digital data by switching between a channel bit frequency and a frequency that is half of the channel bit frequency
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations51
US7428195B2Sep 23, 2008
Information reproduction apparatus and information reproduction method
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations50
PANASONIC CORP
7 patentsUS7558177B2Jul 7, 2009
Optical disc playback apparatus
PANASONIC CORP29 citations92
US7778134B2Aug 17, 2010
Waveform equalization control device
PANASONIC CORP3 citations62
US7539097B2May 26, 2009
Optical disk device
PANASONIC CORP3 citations62
US7558171B2Jul 7, 2009
Optical disc recording/playback apparatus
PANASONIC CORP4 citations61
US7852728B2Dec 14, 2010
Digital signal reproducing apparatus
PANASONIC CORP3 citations56
US8022847B2Sep 20, 2011
Signal processing device
PANASONIC CORP2 citations53
US8004945B2Aug 23, 2011
Recording medium access device
PANASONIC CORP0 citations52