Inventor · disambiguated record
Shuichi Okawa
Also filed as: OKAWA SHUICHI
34 granted patents·17 pending applications·179 citations·filing 2001–2025
96Inventor score
Top patents by PatentIndex Score
51 records- 0192US7488429B2Method of dry etching, method of manufacturing magnetic recording medium, and magnetic recording mediumTDK CORP·Filed 2005·Granted Feb 10, 2009·19 cites·20 claims
- 0284US7741229B2Method for manufacturing magnetic recording mediumTDK CORP·Filed 2005·Granted Jun 22, 2010·9 cites·17 claims
- 0384US7480924B2Magnetic recording and reproducing device and magnetic recording mediumTDK CORP·Filed 2005·Granted Jan 20, 2009·6 cites·6 claims
- 0484US7300595B2Method for filling concave portions of concavo-convex pattern and method for manufacturing magnetic recording mediumTDK CORP·Filed 2004·Granted Nov 27, 2007·18 cites·16 claims
- 0584US7247251B2Method for manufacturing a magnetic recording mediumTDK CORP·Filed 2005·Granted Jul 24, 2007·6 cites·5 claims
- 0684US7225528B2Method for manufacturing magnetic recording mediumTDK CORP·Filed 2004·Granted Jun 5, 2007·27 cites·12 claims
- 0781US12337898B2Body frame member and method for manufacturing body frame memberPRESS KOGYO KK·Filed 2021·Granted Jun 24, 2025·1 cites·1 claims
- 0881US8116172B2Near-field light generating device including surface plasmon generating elementITO YASUHIRO·Filed 2009·Granted Feb 14, 2012·4 cites·16 claims
- 0981US7273563B2Method for manufacturing a magnetic recording mediumTDK CORP·Filed 2005·Granted Sep 25, 2007·11 cites·12 claims
- 1079US7470374B2Manufacturing method and manufacturing apparatus of magnetic recording mediumTDK CORP·Filed 2004·Granted Dec 30, 2008·13 cites·12 claims
- 1179US7378029B2Method for manufacturing magnetic recording mediumTDK CORP·Filed 2005·Granted May 27, 2008·4 cites·2 claims
- 1278US7630156B2Magnetic recording medium, recording/reproducing apparatus, and stamper for manufacturing a magnetic recording mediumTDK CORP·Filed 2008·Granted Dec 8, 2009·3 cites·7 claims
- 1378US7417826B2Magnetic recording mediumTDK CORP·Filed 2004·Granted Aug 26, 2008·12 cites·16 claims
- 1477US7538041B2Magnetic recording medium, method of manufacturing the same, and intermediate for magnetic recording mediumTDK CORP·Filed 2005·Granted May 26, 2009·3 cites·2 claims
- 1575US7247343B2Method for manufacturing magnetic recording mediumTDK CORP·Filed 2004·Granted Jul 24, 2007·10 cites·2 claims
- 1673US8124255B2Magnetic recording medium and magnetic recording and reproducing apparatusOKAWA SHUICHI·Filed 2009·Granted Feb 28, 2012·3 cites·4 claims
- 1772US7438982B2Magnetic recording medium including disk substrate, magnetic layer, and non-magnetic layerTDK CORP·Filed 2005·Granted Oct 21, 2008·6 cites·17 claims
- 1870US12467956B2Magnetic sensorTDK CORP·Filed 2022·Granted Nov 11, 2025·0 cites·20 claims
- 1969US7682713B2Magnetic recording medium with recording layer having a predetermined concavo-convex pattern and magnetic recording and reproducing apparatusTDK CORP·Filed 2005·Granted Mar 23, 2010·1 cites·17 claims
- 2068US7740903B2Method for manufacturing magnetic recording mediumTDK CORP·Filed 2007·Granted Jun 22, 2010·1 cites·4 claims
- 2166US7636215B2Magnetic recording medium, recording/reproducing apparatus, and method of manufacturing a magnetic recording mediumTDK CORP·Filed 2008·Granted Dec 22, 2009·2 cites·3 claims
- 2265US6797415B2Cobalt-nickel-iron alloy thin film and method of forming the same, and thin-film magnetic head and method of manufacturing the sameTDK CORP·Filed 2001·Granted Sep 28, 2004·10 cites·12 claims
- 2365US2025271515A1Magnetic sensorTDK CORP·Filed 2025·Application pending·0 cites
- 2461US7125615B2Magnetic recording medium and magnetic recording deviceTDK CORP·Filed 2003·Granted Oct 24, 2006·4 cites·16 claims
- 2560US7824584B2Method of manufacturing stamper, method of manufacturing resin molded article, and stamperTDK CORP·Filed 2009·Granted Nov 2, 2010·2 cites·5 claims
- 2656US7230795B2Recording medium having reduced surface roughnessTDK CORP·Filed 2004·Granted Jun 12, 2007·2 cites·7 claims
- 2755US7531103B2Mask forming method, mask forming functional layer, dry etching method, and method of manufacturing an information recording mediumTDK CORP·Filed 2004·Granted May 12, 2009·2 cites·5 claims
- 2853US7388215B2Pattern drawing method, stamper manufacturing method, and pattern drawing apparatusTDK CORP·Filed 2006·Granted Jun 17, 2008·0 cites·6 claims
- 2953US2009101624A1Method for manufacturing magnetic recording mediumTDK CORP·Filed 2008·Application pending·0 cites
- 3053US2009168244A1Magnetic recording medium, magnetic recording and reproducing apparatus, and method for manufacturing magnetic recording mediumTDK CORP·Filed 2008·Application pending·0 cites
- 3152US7541106B2Magnetic recording medium and magnetic recording/reproducing deviceTDK CORP·Filed 2006·Granted Jun 2, 2009·0 cites·4 claims
- 3250US11612368B2Biometric information measuring deviceUNIV NAT CORP TOKYO MEDICAL & DENTAL·Filed 2017·Granted Mar 28, 2023·0 cites·14 claims
- 3350US2009242508A1Method for manufacturing magnetic recording mediumTDK CORP·Filed 2009·Application pending·0 cites
- 3450US2024248156A1Magnetic field measurement deviceTDK CORP·Filed 2022·Application pending·0 cites
- 3547US2006269791A1Magnetic recording medium, magnetic recording and reproducing apparatus, stamper, method of manufacturing stamper, and method of manufacturing magnetic recording mediumTDK CORP·Filed 2006·Application pending·0 cites
- 3647US2006292400A1Magnetic recording medium, magnetic recording and reproducing apparatus, and method for manufacturing magnetic recording mediumTDK CORP·Filed 2006·Application pending·0 cites
- 3747US2006275692A1Method for forming concavo-convex pattern, method for manufacturing master disk, method for manufacturing stamper, and method for manufacturing magnetic recording mediumTDK CORP·Filed 2006·Application pending·0 cites
- 3845US10952631B2Biomagnetism measurement deviceUNIV NAT CORP TOKYO MEDICAL & DENTAL·Filed 2015·Granted Mar 23, 2021·0 cites·6 claims
- 3944US2005161427A1Method of working a workpiece containing magnetic material and method of manufacturing a magnetic recording mediumTDK CORP·Filed 2005·Application pending·0 cites
- 4043US11647928B2Biomagnetism measuring deviceUNIV NAT CORP TOKYO MEDICAL & DENTAL·Filed 2017·Granted May 16, 2023·0 cites·12 claims
- 4143US7727412B2Dry etching methodTDK CORP·Filed 2004·Granted Jun 1, 2010·0 cites·11 claims
- 4243US2007031706A1Method for producing magnetic recording medium and magnetic recording mediumTTDK CORP·Filed 2004·Application pending·0 cites
- 4343US2005045581A1Method for manufacturing magnetic recording mediumTDK CORP·Filed 2004·Application pending·0 cites
- 4443US2006166506A1Mask material for reactive ion etching, mask and dry etching methodTDK CORP·Filed 2004·Application pending·0 cites
- 4543US2005138803A1Stamper for pattern transfer and manufacturing method thereofTDK CORP·Filed 2004·Application pending·0 cites
- 4643US2005285308A1Stamper, imprinting method, and method of manufacturing an information recording mediumTDK CORP·Filed 2005·Application pending·0 cites
- 4742US2005060874A1Method for processing work piece including magnetic material and method for manufacturing magnetic recording mediumTDK CORP·Filed 2004·Application pending·0 cites
- 4841US10890630B2Magnetic sensorTDK CORP·Filed 2017·Granted Jan 12, 2021·0 cites·20 claims
- 4939US11412945B2Muscle activity measurement device and muscle activity measurement methodUNIV NAT CORP TOKYO MEDICAL & DENTAL·Filed 2017·Granted Aug 16, 2022·0 cites·7 claims
- 5039US2011181984A1Magnetic recording medium, magnetic recording and reproducing apparatus, and method for manufacturing magnetic recording mediumTDK CORP·Filed 2011·Application pending·0 cites
Showing the top 50 of 51 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →