Inventor
HIROKANE JUNJI
JP118 patents
⚠️ This page may combine multiple inventors who share the name “HIROKANE JUNJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHARP KK
49 patentsUS7609605B2Oct 27, 2009
Optical storage medium, optical read/write apparatus, and optical read/write method
SHARP KK42 citations96
US7586824B2Sep 8, 2009
Optical storage medium, optical read/write apparatus, and optical read/write method
SHARP KK40 citations96
US7180849B2Feb 20, 2007
Optical storage medium enabling uniform light transmittance, optical read/write apparatus for same, and optical read/write method for same
SHARP KK44 citations96
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
US6762989B2Jul 13, 2004
Optical disk having groove address pits and land address pits of equal depths
SHARP KK17 citations93
US6510129B1Jan 21, 2003
Optical recording medium, manufacturing method of optical recording medium master disk, and cutting device used therefor
SHARP KK18 citations93
US6430115B1Aug 6, 2002
Magneto-optical recording device with three distinct layers
SHARP KK22 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
US6143436ANov 7, 2000
Magnetic recording medium and information recording-reproduction method using the same
SHARP KK21 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
US5955191ASep 21, 1999
Magneto-optical recording medium and a reproducing method using such a medium
SHARP KK19 citations93
US5901118AMay 4, 1999
Magneto-optical recording medium having a readout layer and a recording layer
SHARP KK20 citations93
US5673250ASep 30, 1997
Optical recording medium having pit rows on every other boundary and reproducing method thereof
SHARP KK26 citations93
US5656385AAug 12, 1997
Magnetic recording medium and information recording-reproduction method using the same
SHARP KK30 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
US5428585AJun 27, 1995
Magneto-optical recording medium comprising first, second and third magnetic layers and method of recording on same
SHARP KK40 citations93
US4917751AApr 17, 1990
Method of producing double sided optical memory disks
SHARP KK29 citations93
US4610912ASep 9, 1986
Magneto-optic memory element
SHARP KK31 citations93
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
US5128922AJul 7, 1992
Optical disk with glass substrate and method of producing same
SHARP KK38 citations92
US5087535AFeb 11, 1992
Method of manufacturing photo-mask and photo-mask manufactured thereby
SHARP KK27 citations92
US6545955B1Apr 8, 2003
Magneto-optic storage media and methods of reproducing the same
SHARP KK14 citations84
US6150038ANov 21, 2000
Magneto-optical recording medium
SHARP KK16 citations84
US5939187AAug 17, 1999
Magneto-optical recording medium
SHARP KK18 citations84
US5767891AJun 16, 1998
Method of manufacturing an optical probe element
SHARP KK14 citations82
US5680376AOct 21, 1997
Optical recording medium, and apparatus and method for recording and reproducing information on the same
SHARP KK16 citations82
US5170390ADec 8, 1992
Optical recording element and driving system
SHARP KK14 citations82
US5079113AJan 7, 1992
Photo-mask
SHARP KK20 citations82
US4778747AOct 18, 1988
Method of manufacturing optical memory element
SHARP KK20 citations82
US4717628AJan 5, 1988
Magnetooptical storage element
SHARP KK20 citations82
US6671234B1Dec 30, 2003
Magneto-optical storage media and method of reproducing the same
SHARP KK9 citations74
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
US6456571B1Sep 24, 2002
Magneto-optical recording medium and reproducing method thereof
SHARP KK9 citations74
US6418091B1Jul 9, 2002
Magneto-optical recording medium having oxidized side wall between land and groove
SHARP KK13 citations74
US6352765B1Mar 5, 2002
Magneto-optical recording medium and reproducing device
SHARP KK6 citations74
US6278668B1Aug 21, 2001
Magneto-optical storage media
SHARP KK13 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
US6178143B1Jan 23, 2001
Magneto-optical recording medium for achieving super resolution reproduction of high resolution recorded information
SHARP KK6 citations74
US6117544ASep 12, 2000
Magneto-optical recording medium
SHARP KK15 citations74
US6042954AMar 28, 2000
Magneto-optical recording medium
SHARP KK7 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
US5985436ANov 16, 1999
Magneto-optical recording medium, magneto-optical recording method, and magneto-optical recording apparatus
SHARP KK8 citations74
US5982409ANov 9, 1999
Optical probe element, and a recording and reproduction device using the optical probe element
SHARP KK5 citations74
US5936916AAug 10, 1999
Magneto-optical recording medium with multiple magnetic layers and methods related thereto
SHARP KK7 citations74
SHAP KABUSHIKI KAISHA
1 patentShowing the top 50 of 118 patents by PatentIndex Score.