Inventor · disambiguated record
Tatsuaki Ishida
Also filed as: ISHIDA TATSUAKI
47 granted patents·1 pending application·769 citations·filing 1990–2004
98Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD48
Top patents by PatentIndex Score
48 records- 0198US6347016B1Master information carrier, process for producing the carrier, and method and apparatus for recording master information signal on magnetic recording medium by using the carrierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Feb 12, 2002·292 cites·16 claims
- 0290US6529341B1Magnetic recording/reproduction device using preformat informationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Mar 4, 2003·67 cites·29 claims
- 0389US6606208B2Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Aug 12, 2003·18 cites·11 claims
- 0486US6567227B2Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted May 20, 2003·14 cites·9 claims
- 0585US6466385B1Method and apparatus of forming a magnetic disk with a servo sector and a data sector on a spiral trackMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Oct 15, 2002·25 cites·6 claims
- 0684US6606209B2Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Aug 12, 2003·11 cites·5 claims
- 0782US6961196B2Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Nov 1, 2005·9 cites·23 claims
- 0880US6850377B2Master information carrier/magnetic recording medium defect inspection methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Feb 1, 2005·14 cites·27 claims
- 0977US6242085B1Magnetic recording medium and method for producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Jun 5, 2001·30 cites·16 claims
- 1076US6858329B2Master disc and method for manufacturing magnetic disc using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Feb 22, 2005·11 cites·11 claims
- 1176US6665133B1Magnetic transfer method and magnetic transfer deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Dec 16, 2003·11 cites·16 claims
- 1274US6914735B2Manufacturing method for magnetic recording medium, and master information carrier used thereforMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Jul 5, 2005·10 cites·7 claims
- 1373US7057834B2Master information carrier and method for manufacturing magnetic disc using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jun 6, 2006·8 cites·10 claims
- 1472US6587290B2Master information carrier, method for producing the carrier, and method apparatus for writing information into magnetic record medium using the carrierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Jul 1, 2003·5 cites·8 claims
- 1571US5901012AMagnetic recording and reproduction apparatus ring-type magnetic head for recording signals to recording medium having oblique axis of easy magnetizationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted May 4, 1999·20 cites·11 claims
- 1669US7095575B2Magnetic disk apparatus, method for determining data track pitch, and self-servo write methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Aug 22, 2006·7 cites·22 claims
- 1769US6898032B2Method and apparatus for magnetic printingMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted May 24, 2005·6 cites·7 claims
- 1869US6785070B2Magnetic transcription deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Aug 31, 2004·7 cites·12 claims
- 1969US6590727B2Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jul 8, 2003·4 cites·12 claims
- 2066US6646820B1Method for recording magnetic recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Nov 11, 2003·6 cites·23 claims
- 2163US7061703B2Master information carrier and method for manufacturing magnetic disc using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jun 13, 2006·4 cites·9 claims
- 2263US5679410AContinuous fabrication of thin film magnetic recording medium with vacuum depositionMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Oct 21, 1997·17 cites·10 claims
- 2361US6994029B2Magnetic transfer method and magnetic transfer deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Feb 7, 2006·4 cites·2 claims
- 2461US6858328B1Master information supportMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Feb 22, 2005·15 cites·14 claims
- 2561US6611388B1Master information magnetic recorderMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Aug 26, 2003·15 cites·4 claims
- 2660US5691008AMagnetic recording media fabrication methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Nov 25, 1997·11 cites·5 claims
- 2758US6980380B2Master information carrier and method for manufacturing magnetic diskMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Dec 27, 2005·3 cites·7 claims
- 2857US6821869B2Photomask, method of generating resist pattern, and method of fabricating master information carrierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Nov 23, 2004·3 cites·6 claims
- 2957US5912783AMagnetic recording and reproducing apparatus having ring-type magnetic head with metallic soft magnetic films of differing thicknessesMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Jun 15, 1999·11 cites·12 claims
- 3056US5534324AMagnetic recording medium and method for producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Jul 9, 1996·17 cites·8 claims
- 3155US5418059AMagnetic recording medium and method for producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted May 23, 1995·15 cites·4 claims
- 3253US5472506AMethod and apparatus for producing magnetic recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Dec 5, 1995·9 cites·12 claims
- 3351US6781777B2Master information carrier and method for manufacturing information recording medium using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Aug 24, 2004·1 cites·13 claims
- 3451US6088178AMagnetic recording and reproducing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Jul 11, 2000·9 cites·7 claims
- 3548US5087476AMethod of producing thin filmMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1990·Granted Feb 11, 1992·13 cites·13 claims
- 3647US5569523AMagnetic recording medium having a ferromagnetic thin film in which 70% to 90% of the total magnetic particles have residual magnetization vectors within ±10° of the easy axis directionMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Oct 29, 1996·8 cites·6 claims
- 3746US6909565B2Magnetic transfer method and magnetic transfer apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jun 21, 2005·0 cites·13 claims
- 3846US6714367B1Master information medium and method of master information recordingMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Mar 30, 2004·7 cites·15 claims
- 3943US5298282AProduction of magnetic recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Mar 29, 1994·5 cites·5 claims
- 4043US5202149AMethod for making a magnetic recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Apr 13, 1993·5 cites·6 claims
- 4143US2005111123A1Master information carrier and method of manufacturing the same, method of recording master information signal on magnetic recording medium, method of manufacturing the magnetic recording medium, and magnetic recording and reproducing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Application pending·0 cites
- 4240US5665460AMagnetic recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Sep 9, 1997·7 cites·16 claims
- 4339US5458914AMethod for producing magnetic recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Oct 17, 1995·3 cites·1 claims
- 4438US5554440AMagnetic recording medium and method for producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Sep 10, 1996·6 cites·6 claims
- 4537US5679166AMagnetic recording media, magnetic recording media fabrication method, and fabrication equipmentMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Oct 21, 1997·2 cites·8 claims
- 4635US5549936AManufacturing method of magnetic recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Aug 27, 1996·2 cites·21 claims
- 4734US5427869AMagnetic recording medium and method for producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Jun 27, 1995·2 cites·1 claims
- 4829US5433999AMagnetic recording medium comprising specific backcoat layerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Jul 18, 1995·0 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Tatsuaki Ishida files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →