Inventor
MURAKAMI YOSHITERU
JP101 patents
⚠️ This page may combine multiple inventors who share the name “MURAKAMI YOSHITERU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHARP KK
47 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
US5499229AMar 12, 1996
Track scanning for reproducing address information by crosstalk
SHARP KK92 citations96
US5066381ANov 19, 1991
Target unit
SHARP KK51 citations94
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
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
US5656385AAug 12, 1997
Magnetic recording medium and information recording-reproduction method using the same
SHARP KK30 citations93
US5586109ADec 17, 1996
Optical memory having narrowed track pitch
SHARP KK28 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
US5452272ASep 19, 1995
Magneto-optical recording and reproducing device having light interrupting forming main robe and side robe light beam portions
SHARP KK41 citations93
US5059473AOct 22, 1991
Optical recording medium and manufacturing method thereof
SHARP KK33 citations93
US4956243ASep 11, 1990
Optical memory element
SHARP KK26 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
US6128274AOct 3, 2000
Optical recording disk capable of suppressing bimetallic effects caused by thermal expansion
SHARP KK37 citations92
US5490131AFeb 6, 1996
Optical disk
SHARP KK31 citations91
US4740947AApr 26, 1988
Dual surface optical memory disc
SHARP KK25 citations91
US4717628AJan 5, 1988
Magnetooptical storage element
SHARP KK20 citations82
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
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
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
US5985436ANov 16, 1999
Magneto-optical recording medium, magneto-optical recording method, and magneto-optical recording apparatus
SHARP KK8 citations74
US5926444AJul 20, 1999
Magneto-optical recording medium for achieving super resolution reproduction of high resolution recorded information
SHARP KK8 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
US5764601AJun 9, 1998
Method of manufacturing a magneto-optical recording medium having a readout layer with varying composition and curie temperature
SHARP KK11 citations74
US5757734AMay 26, 1998
Magneto-optical recording medium and method for reproducing from same
SHARP KK11 citations74
US5707727AJan 13, 1998
Magneto-optical recording medium
SHARP KK15 citations74
US5705286AJan 6, 1998
Magneto-optical recording medium
SHARP KK10 citations74
US5676854AOct 14, 1997
Optical memory having narrowed track pitch
SHARP KK14 citations74
US5662988ASep 2, 1997
Magneto-optical recording medium
SHARP KK16 citations74
US5631096AMay 20, 1997
Magneto optical memory device
SHARP KK12 citations74
US5615182AMar 25, 1997
Magneto-optical disk and the reproducing method thereof
SHARP KK12 citations74
US5477528ADec 19, 1995
Magneto-optical disk and the reproducing method thereof
SHARP KK9 citations74
US5427833AJun 27, 1995
Magneto-optical recording medium and method for processing the surface
SHARP KK10 citations74
US5331612AJul 19, 1994
Magneto-optical recording apparatus using the magnetic field modulation method
SHARP KK13 citations74
US5328740AJul 12, 1994
Magneto-optical recording medium and method for processing the surface
SHARP KK11 citations74
US5317555AMay 31, 1994
Optical head device utilizing partially overlapping light spots to read information from a readout layer
SHARP KK15 citations74
US5175079ADec 29, 1992
Optical memory device
SHARP KK15 citations74
US4985885AJan 15, 1991
Optical memory device
SHARP KK11 citations74
US4858212AAug 15, 1989
Recording method on magnetooptical disc with laser magnetic field
SHARP KK7 citations74
YAMAMOTO MASAKI
1 patentNAKANO IKUO
1 patentIWATA NOBORU
1 patentShowing the top 50 of 101 patents by PatentIndex Score.