Inventor · disambiguated record
Isao Nunokawa
Also filed as: NUNOKAWA ISAO
24 granted patents·2 pending applications·380 citations·filing 1985–2013
96Inventor score
Files withHITACHI GLOBAL STORAGE TECH6HITACHI LTD6HITACHI GLOBAL STORAGE TECH NL4HGST Netherlands BV3NUNOKAWA ISAO3
Top patents by PatentIndex Score
26 records- 0196US6995949B2Magnetic heads for perpendicular recording and magnetic recording disk apparatus using the sameHITACHI LTD·Filed 2005·Granted Feb 7, 2006·32 cites·6 claims
- 0296US6813116B2Magnetic heads for perpendicular recording and magnetic recording disk apparatus using the sameHITACHI LTD·Filed 2002·Granted Nov 2, 2004·56 cites·12 claims
- 0395US8995088B1Heat sink for a spin torque oscillator (STO) in microwave assisted magnetic recording (MAMR)HGST Netherlands BV·Filed 2013·Granted Mar 31, 2015·54 cites·20 claims
- 0495US7535675B2Magnetic recording head with shaped poleHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted May 19, 2009·28 cites·9 claims
- 0595US6891697B2Magnetic heads for perpendicular recording and magnetic recording disk apparatus using the sameHITACHI LTD·Filed 2004·Granted May 10, 2005·41 cites·4 claims
- 0694US8351162B2Magnetic head with electro lapping guideHGST Netherlands BV·Filed 2005·Granted Jan 8, 2013·18 cites·8 claims
- 0794US7715152B2Magnetic recording head for perpendicular recording, fabrication process, and magnetic disk storage apparatus mounting the magnetic headHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted May 11, 2010·44 cites·16 claims
- 0893US7639452B2Magnetic head for perpendicular recording and fabrication processHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted Dec 29, 2009·17 cites·5 claims
- 0990US6785097B2Thin film magnetic recording head, method of fabricating the thin film magnetic recording head and magnetic disk driveHITACHI LTD·Filed 2002·Granted Aug 31, 2004·25 cites·7 claims
- 1089US7990653B2Perpendicular recording magnetic head with a main magnetic pole piece and an auxiliary magnetic pole pieceHITACHI GLOBAL STORAGE TECH·Filed 2007·Granted Aug 2, 2011·9 cites·7 claims
- 1183US9135933B2Tapered write head for MAMRHGST Netherlands BV·Filed 2013·Granted Sep 15, 2015·6 cites·10 claims
- 1282US8107193B2Perpendicular magnetic recording headNUNOKAWA ISAO·Filed 2010·Granted Jan 31, 2012·7 cites·12 claims
- 1381US8335051B2Perpendicular magnetic recording head having a magnetic layer overhanging a trailing side of a main pole and method of manufacture thereofNUNOKAWA ISAO·Filed 2009·Granted Dec 18, 2012·5 cites·17 claims
- 1481US8203803B2Magnetic recording head for perpendicular recording with wrap around shield, the fabrication process and magnetic disk storage apparatus mounting the magnetic headETOH KIMITOSHI·Filed 2005·Granted Jun 19, 2012·5 cites·18 claims
- 1580US8824103B2Magnetic recording head and magnetic recording apparatusSHIIMOTO MASATO·Filed 2012·Granted Sep 2, 2014·5 cites·5 claims
- 1674US7895732B2Method for manufacturing a perpendicular magnetic recording headHITACHI GLOBAL STORAGE TECH NL·Filed 2007·Granted Mar 1, 2011·2 cites·10 claims
- 1770US8351154B2Perpendicular recording magnetic head with a varying interval between the main pole and the shield, and methods of manufacturing thereofHITACHI GLOBAL STORAGE TECH NL·Filed 2009·Granted Jan 8, 2013·1 cites·22 claims
- 1868US7882617B2Method of fabricating a magnetic recording head for perpendicular recording with enhanced covering powerHITACHI GLOBAL STORAGE TECH NL·Filed 2005·Granted Feb 8, 2011·1 cites·11 claims
- 1963US4617575AThermal headHITACHI LTD·Filed 1985·Granted Oct 14, 1986·14 cites·22 claims
- 2060US8351153B2Magnetic recording head, method of manufacturing the same, and magnetic recording/reproducing deviceHITACHI GLOBAL STORAGE TECH NL·Filed 2009·Granted Jan 8, 2013·0 cites·12 claims
- 2152US9047885B2Perpendicular magnetic recording head and method of manufacturing the sameSUGIYAMA MIKITO·Filed 2008·Granted Jun 2, 2015·0 cites·18 claims
- 2251US2009154021A1Perpendicular magnetic recording headNUNOKAWA ISAO·Filed 2008·Application pending·0 cites
- 2347US2006203381A1Magnetic recording head for perpendicular recording, fabrication process, and magnetic disk storage apparatus mounting magnetic headHITACHI GLOBAL STORAGE TECH·Filed 2006·Application pending·0 cites
- 2443US7086140B2Method of fabricating a thin film magnetic recording headHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Aug 8, 2006·0 cites·6 claims
- 2543US5520047AExothermic resistor element and thermal process air flow meter using the sameHITACHI LTD·Filed 1994·Granted May 28, 1996·10 cites·11 claims
- 2631US8830623B2Shield structure for reducing the magnetic induction rate of the trailing shield and systems thereofHAMASAKI TOMOAKI·Filed 2011·Granted Sep 9, 2014·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →