Inventor
IKETANI NAOYASU
JP32 patents
⚠️ This page may combine multiple inventors who share the name “IKETANI NAOYASU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHARP KK
31 patentsUS5933411AAug 3, 1999
Optical recording medium having a wobbling section for recording address information and methods of recording and reproduction using same
SHARP KK54 citations96
US6707766B2Mar 16, 2004
Magneto-optical storage media
SHARP KK19 citations93
US6388956B1May 14, 2002
Magneto-optical storage media
SHARP KK21 citations93
US6295271B1Sep 25, 2001
Optical recording medium having tracks, each track having a plurality of wobble sections/one-side wobble regions
SHARP KK35 citations93
US6147939ANov 14, 2000
Magneto-optical recording medium having intermediate layer of in-plane magnetization
SHARP KK19 citations93
US6122233ASep 19, 2000
Optical disk having virtually constant width recording track and optical disk apparatus
SHARP KK33 citations93
US5901118AMay 4, 1999
Magneto-optical recording medium having a readout layer and a recording layer
SHARP KK20 citations93
US5563852AOct 8, 1996
Magneto-optical recording medium having a readout layer with varying composition and curie temperature
SHARP KK21 citations93
US5486395AJan 23, 1996
Magneto-optical disk
SHARP KK20 citations93
US7690009B2Mar 30, 2010
Electromagnetic field generating element, information recording/reproducing head and information recording/reproduction apparatus
SHARP KK24 citations92
US6128274AOct 3, 2000
Optical recording disk capable of suppressing bimetallic effects caused by thermal expansion
SHARP KK37 citations92
US5982715ANov 9, 1999
Magneto-optical recording medium having a signal reproducing region of the reproducing layer larger than the record bit in the recording layer
SHARP KK26 citations92
US7489597B2Feb 10, 2009
Electromagnetic field generating element, information recording/reproducing head, and information recording/reproducing apparatus
SHARP KK10 citations84
US6665235B2Dec 16, 2003
Magneto-optical recording medium and recording and reproducing method and optical head designed for the magneto-optical recording medium
SHARP KK7 citations74
US6338911B1Jan 15, 2002
Magneto-optical recording medium
SHARP KK10 citations74
US6261707B1Jul 17, 2001
Magneto-optical recording medium and recording and reproducing method and optical head designed for the magneto-optical recording medium
SHARP KK14 citations74
US6031816AFeb 29, 2000
Optical recording medium, method for manufacturing the same, and optical information recording and reproducing device used with respect to the same
SHARP KK8 citations74
US5991259ANov 23, 1999
Optical disk with tracking guide of wind and unwind portions
SHARP KK10 citations74
US5922177AJul 13, 1999
Magneto-optical recording medium and producing method thereof
SHARP KK8 citations74
US5909412AJun 1, 1999
Method for reproducing optical disk
SHARP KK12 citations74
US5889740AMar 30, 1999
Magneto-optical recording medium and magneto-optical recording method
SHARP KK9 citations74
US5764601AJun 9, 1998
Method of manufacturing a magneto-optical recording medium having a readout layer with varying composition and curie temperature
SHARP KK11 citations74
US6298018B1Oct 2, 2001
Optical recording and reproducing method optical recording and reproducing device, and optical recording medium
SHARP KK11 citations73
US6477120B1Nov 5, 2002
Magneto-optical recording medium
SHARP KK2 citations63
US6272077B1Aug 7, 2001
Magneto-optical recording medium having intermediate layer of in plane magnetization
SHARP KK4 citations63
US5824426AOct 20, 1998
Magneto-optical recording medium
SHARP KK3 citations63
US5643687AJul 1, 1997
Magneto-optic memory medium and a method for producing the same
SHARP KK5 citations63
US5637394AJun 10, 1997
Magneto-optical recording medium and method of reproducing magneto-optical information using thereof
SHARP KK2 citations63
US5554436ASep 10, 1996
Magneto-optical recording medium
SHARP KK6 citations63
US6456586B1Sep 24, 2002
Magneto-optical recording medium and process for producing the same
SHARP KK6 citations62
US6483785B1Nov 19, 2002
Magneto-optical recording method using the relation of beam diameter and an aperture of converging lens
SHARP KK0 citations52