Inventor
MIEDA MICHINOBU
JP68 patents
Patents
50 patentsUS5414652AMay 9, 1995
Magneto-optical memory element
SHARP KK137 citations98
US5933411AAug 3, 1999
Optical recording medium having a wobbling section for recording address information and methods of recording and reproduction using same
SHARP KK54 citations96
US5659537AAug 19, 1997
Magneto-optical recording medium and method of reproducing from 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
US6058100AMay 2, 2000
Optical recording medium having pit rows
SHARP KK21 citations93
US5673250ASep 30, 1997
Optical recording medium having pit rows on every other boundary and reproducing method thereof
SHARP KK26 citations93
US5644566AJul 1, 1997
Magneto-optical recording medium
SHARP KK44 citations93
US5640374AJun 17, 1997
Magneto-optical recording medium having intermediate layer of in-plane magnetization and method of reproducing from the medium
SHARP KK27 citations93
US5633838AMay 27, 1997
Magneto-optical recording medium having two reproduction layers and a method for reproducing thereof
SHARP KK20 citations93
US5586109ADec 17, 1996
Optical memory having narrowed track pitch
SHARP KK28 citations93
US5059473AOct 22, 1991
Optical recording medium and manufacturing method thereof
SHARP KK33 citations93
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
US5087535AFeb 11, 1992
Method of manufacturing photo-mask and photo-mask manufactured thereby
SHARP KK27 citations92
US5490131AFeb 6, 1996
Optical disk
SHARP KK31 citations91
US5170390ADec 8, 1992
Optical recording element and driving system
SHARP KK14 citations82
US5079113AJan 7, 1992
Photo-mask
SHARP KK20 citations82
US6338911B1Jan 15, 2002
Magneto-optical recording medium
SHARP KK10 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
US5936916AAug 10, 1999
Magneto-optical recording medium with multiple magnetic layers and methods related thereto
SHARP KK7 citations74
US5909412AJun 1, 1999
Method for reproducing optical disk
SHARP KK12 citations74
US5838645ANov 17, 1998
Magneto-optical recording medium having a plurality of magnetic layers
SHARP KK9 citations74
US5707727AJan 13, 1998
Magneto-optical recording medium
SHARP KK15 citations74
US5684764ANov 4, 1997
Magneto-optical recording medium having a plurality of magnetic layers
SHARP KK11 citations74
US5676854AOct 14, 1997
Optical memory having narrowed track pitch
SHARP KK14 citations74
US5615180AMar 25, 1997
Magneto-optical recording medium and magneto-optical recording apparatus capable of performing a light-modulation overwriting operation
SHARP KK9 citations74
US5530685AJun 25, 1996
Magneto-optical recording apparatus having paired devices for applying external magnetic fields
SHARP KK12 citations74
US5498485AMar 12, 1996
Magneto-optical recording medium and manufacturing method thereof
SHARP KK7 citations74
US5457006AOct 10, 1995
Method of manufacturing photo-mask and photo-mask manufactured thereby
SHARP KK13 citations74
US5403683AApr 4, 1995
Photo-mask
SHARP KK10 citations74
US5347510ASep 13, 1994
Method of manufacturing a master plate where its guide groove has an inclined angle
SHARP KK13 citations74
US5260150ANov 9, 1993
Photo-mask with light shielding film buried in substrate
SHARP KK6 citations74
US4858212AAug 15, 1989
Recording method on magnetooptical disc with laser magnetic field
SHARP KK7 citations74
US4786559ANov 22, 1988
Magnetooptical storage element
SHARP KK11 citations74
US5459711AOct 17, 1995
Optical recording element and driving system
SHARP KK11 citations73
US6067285AMay 23, 2000
Optical disc
SHARP KK8 citations72
US5331625AJul 19, 1994
Optical disc with antistatic coating containing tin oxide and phosphorous
SHARP KK9 citations72
US7618768B2Nov 17, 2009
Method of forming micropattern, method of manufacturing optical recording medium master copy, optical recording medium master copy, optical recording medium stamper, and optical recording medium
SHARP KK2 citations63
US6872511B2Mar 29, 2005
Method for forming micropatterns
SHARP KK5 citations63
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
US6010780AJan 4, 2000
Magneto-optical memory medium
SHARP KK4 citations63
US5982713ANov 9, 1999
Magneto-optical recording medium
SHARP KK5 citations63
US5822282AOct 13, 1998
Magneto-optical recording medium having a plurality of magnetic layers for use in light modulation technique
SHARP KK2 citations63
US5787056AJul 28, 1998
Magneto-optical recording medium with multiple magnetic layers
SHARP KK5 citations63
Showing the top 50 of 68 patents by PatentIndex Score.