Inventor
TAKAGI NAOYUKI
JP31 patents
⚠️ This page may combine multiple inventors who share the name “TAKAGI NAOYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SANYO ELECTRIC CO
19 patentsUS6370093B1Apr 9, 2002
Optical disc device
SANYO ELECTRIC CO57 citations95
US6385158B1May 7, 2002
Optical pickup device having compatibility with tracking system, and optical disk recording/reproduction apparatus using the same
SANYO ELECTRIC CO27 citations92
US6480444B2Nov 12, 2002
Optical disk device
SANYO ELECTRIC CO12 citations81
US6501707B1Dec 31, 2002
Method and apparatus for recording with a magneto-optical recording medium applying one period of an alternating magnetic field to a unit domain length
SANYO ELECTRIC CO8 citations74
US5440535AAug 8, 1995
Method of counting tracks on disk and track counter circuit therefor
SANYO ELECTRIC CO8 citations74
US6492035B1Dec 10, 2002
Magneto-optical recording medium with intermediate layer having a controlled saturation magnetization
SANYO ELECTRIC CO9 citations73
US6388955B1May 14, 2002
Reproducing method for magneto-optic recording medium, and magneto-optic disk device
SANYO ELECTRIC CO6 citations73
US6301199B1Oct 9, 2001
Magneto-optical recording medium and recording/reproducing apparatus therefor in which recorded magnetic domains are transferred from the recording layer to the reproducing layer
SANYO ELECTRIC CO6 citations63
US6650599B2Nov 18, 2003
Method and apparatus for determining power level of laser beam in magneto-optical recording device
SANYO ELECTRIC CO4 citations62
US6483783B1Nov 19, 2002
Magneto-optical disk apparatus capable of accurately enlarging and reproducing a magnetic domain and method of reproducing the same
SANYO ELECTRIC CO5 citations62
US6295253B1Sep 25, 2001
Magnetooptical disk unit capable of recording or reproducing signals having different domain lengths under the same conditions, signal recording method and signal reproducing method
SANYO ELECTRIC CO5 citations62
US6847590B2Jan 25, 2005
Magneto-optical recording medium including a calibration magnetic domain recorded in a predetermined pattern in a recording layer
SANYO ELECTRIC CO0 citations52
US6697304B2Feb 24, 2004
Method and apparatus for recording with a magneto-optical recording medium
SANYO ELECTRIC CO0 citations52
US6418088B1Jul 9, 2002
Apparatus and method for reproducing information from a magneto optical recording medium by the magnetic domain magnification method
SANYO ELECTRIC CO1 citations52
US6477122B2Nov 5, 2002
Optical disk device
SANYO ELECTRIC CO0 citations51
US6466527B1Oct 15, 2002
Optical disk device
SANYO ELECTRIC CO0 citations51
US6459662B1Oct 1, 2002
Optical disk device
SANYO ELECTRIC CO0 citations51
US7876648B2Jan 25, 2011
Optical pick-up capable of eliminating stray beams
SANYO ELECTRIC CO0 citations41
US7852735B2Dec 14, 2010
Optical pickup device
SANYO ELECTRIC CO0 citations41
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
6 patentsUS7084831B2Aug 1, 2006
Wireless device having antenna
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD70 citations98
US6930641B2Aug 16, 2005
Antenna and radio device using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD32 citations92
US7193564B2Mar 20, 2007
Antenna device, and method of manufacturing the same antenna device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations71
US6348896B2Feb 19, 2002
Antenna device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations63
US7027000B2Apr 11, 2006
Antenna
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations62
US7180453B2Feb 20, 2007
Antenna for portable cellular telephone
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations61