Inventor · disambiguated record
Takao Koshikawa
Also filed as: KOSHIKAWA TAKAO
32 granted patents·830 citations·filing 1979–2001
98Inventor score
Top patents by PatentIndex Score
32 records- 0193US5920978AMethod of making a thin film magnetic sliderFUJITSU LTD·Filed 1996·Granted Jul 13, 1999·63 cites·14 claims
- 0292US6055139AMagnetic recording medium and method of forming the same and magnetic disk driveFUJITSU LTD·Filed 1996·Granted Apr 25, 2000·60 cites·9 claims
- 0392US4974110AThin film magnetic head for perpendicular recording and reproducingFUJITSU LTD·Filed 1989·Granted Nov 27, 1990·56 cites·18 claims
- 0491US6181531B1Thin film magnetic head slider and electrostatic actuator for driving a head element thereofFUJITSU LTD·Filed 1998·Granted Jan 30, 2001·55 cites·28 claims
- 0589US6324032B1Magnetic recording medium having linear or curved tracking servo patterns formed obliquely relative to direction of tracks, and magnetic recording apparatus using the sameFUJITSU LTD·Filed 1999·Granted Nov 27, 2001·48 cites·11 claims
- 0689US5589262APerpendicular magnetic recording medium having a soft magnetic underlayer with a stripe magnetic domain structureFUJITSU LTD·Filed 1994·Granted Dec 31, 1996·59 cites·15 claims
- 0789US4553604AMethod of controlling continuous casting equipmentKAWASAKI STEEL CO·Filed 1983·Granted Nov 19, 1985·26 cites·11 claims
- 0888US5493464AThin-film magnetic head with separate recording and reproducing gapsFUJITSU LTD·Filed 1994·Granted Feb 20, 1996·42 cites·8 claims
- 0985US6594119B1Thin film magnetic head slider and electrostatic actuator for driving a head element thereofFUJITSU LTD·Filed 2000·Granted Jul 15, 2003·23 cites·31 claims
- 1085US5898542AMagneto-resistive effect type head with step or protrusion for reducing thermal asperityFUJITSU LTD·Filed 1998·Granted Apr 27, 1999·37 cites·9 claims
- 1184US5400192AStorage device having vibratory headFUJITSU LTD·Filed 1992·Granted Mar 21, 1995·30 cites·55 claims
- 1281US6295175B1Apparatus for recognizing spin valve head failure due to pin layer magnetic field offsetFUJITSU LTD·Filed 1998·Granted Sep 25, 2001·38 cites·17 claims
- 1380US5995339AMagnetoresistive head with a front flux guide and an embedded MR elementFUJITSU LTD·Filed 1997·Granted Nov 30, 1999·36 cites·15 claims
- 1480US5583726AMagneto-resistive head using flux guideFUJITSU LTD·Filed 1995·Granted Dec 10, 1996·31 cites·6 claims
- 1579US5896243AMagneto-resistive effect type head with step or protrusion for reducing thermal asperityFUJITSU LTD·Filed 1996·Granted Apr 20, 1999·28 cites·23 claims
- 1673US5859753ASpin valve magnetoresistive head with spun valves connected in seriesFUJITSU LTD·Filed 1996·Granted Jan 12, 1999·25 cites·12 claims
- 1772US4582114AContinuous casting apparatus for the production of cast sheetsKAWASAKI STEEL CO·Filed 1984·Granted Apr 15, 1986·12 cites·6 claims
- 1871US5966277AMagnetic head and method for production thereofFUJITSU LTD·Filed 1997·Granted Oct 12, 1999·22 cites·5 claims
- 1971US4250945AMethod of sequential continuous-casting of different grades of steelKAWASAKI STEEL CO·Filed 1979·Granted Feb 17, 1981·14 cites·8 claims
- 2068US6199267B1Method for the production of a magnetic headFUJITSU LTD·Filed 1999·Granted Mar 13, 2001·19 cites·9 claims
- 2166US6083410AThin film magnetic head and process for producing sameFUJITSU LTD·Filed 1997·Granted Jul 4, 2000·18 cites·12 claims
- 2264US6134079AMagnetic head including a pole piece with soft magnetic particles dispersed therein and manufacturing method thereforFUJITSU LTD·Filed 1998·Granted Oct 17, 2000·16 cites·16 claims
- 2363US5771141AMagnetoresistive head and magnetic recording/reproducing apparatusFUJITSU LTD·Filed 1996·Granted Jun 23, 1998·18 cites·12 claims
- 2462US6282061B1Magnetic head with improved floating surfaceFUJITSU LTD·Filed 1997·Granted Aug 28, 2001·15 cites·10 claims
- 2561US4508571AMold additives for use in continuous castingKAWASAKI STEEL CO·Filed 1984·Granted Apr 2, 1985·9 cites·5 claims
- 2658US5717630AMagnetic memory deviceFUJITSU LTD·Filed 1996·Granted Feb 10, 1998·13 cites·33 claims
- 2749US7142393B2Magnetic head and magnetic disk apparatusFUJITSU LTD·Filed 2001·Granted Nov 28, 2006·1 cites·5 claims
- 2843US5793560AStorage device having vibratory headFUJITSU LTD·Filed 1994·Granted Aug 11, 1998·4 cites·11 claims
- 2939US4522251AMethod of increasing casting width for a slab during a continuous casting operationKAWASAKI STEEL CO·Filed 1983·Granted Jun 11, 1985·4 cites·5 claims
- 3038US4806163AMold additives for use in continuous castingKAWASAKI STEEL CO·Filed 1987·Granted Feb 21, 1989·4 cites·3 claims
- 3136US5777827AHorizontal type magneto-resistive head using flux guideFUJITSU LTD·Filed 1996·Granted Jul 7, 1998·2 cites·4 claims
- 3230US5127462ASide wall construction for continuous belt casterKAWASAKI STEEL CO·Filed 1991·Granted Jul 7, 1992·2 cites·22 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →