Inventor · disambiguated record
Yoshihiro Shiroishi
Also filed as: SHIROISHI YOSHIHIRO
59 granted patents·1 pending application·1,709 citations·filing 1979–2013
99Inventor score
Files withHITACHI LTD53HITACHI GLOBAL STORAGE TECH4JOHNS WILLIAM D1SHIIKI KAZUO1SHIROISHI YOSHIHIRO1
Top patents by PatentIndex Score
60 records- 0198US9275672B2Magnetic head, magnetic recording method and apparatus for controlling magnetic head with spin torque oscillator in a disk driveHITACHI LTD·Filed 2013·Granted Mar 1, 2016·87 cites·18 claims
- 0296US6407892B2Magnetic recording and reading deviceHITACHI LTD·Filed 2000·Granted Jun 18, 2002·39 cites·4 claims
- 0395US4833020AMagnetic recording mediumHITACHI LTD·Filed 1988·Granted May 23, 1989·77 cites·30 claims
- 0494US5851643AMagnetic recording media and magnetic recording read-back system which uses such mediaHITACHI LTD·Filed 1997·Granted Dec 22, 1998·192 cites·61 claims
- 0594US5605733AMagnetic recording medium, method for its production, and system for its useHITACHI LTD·Filed 1993·Granted Feb 25, 1997·70 cites·28 claims
- 0693US5236791AMagnetic recording medium and magnetic storageHITACHI LTD·Filed 1989·Granted Aug 17, 1993·58 cites·44 claims
- 0793US5147732ALongitudinal magnetic recording media and magnetic memory unitsHITACHI LTD·Filed 1989·Granted Sep 15, 1992·96 cites·34 claims
- 0892US9105279B2Microwave assisted magnetic recording and magnetic storage deviceHITACHI LTD·Filed 2013·Granted Aug 11, 2015·17 cites·7 claims
- 0992US5815343AMagnetic recording medium, process for producing the same and magnetic recording systemHITACHI LTD·Filed 1997·Granted Sep 29, 1998·77 cites·62 claims
- 1092US4814921AMultilayered magnetic films and thin-film magnetic heads using the same as a poleHITACHI LTD·Filed 1988·Granted Mar 21, 1989·61 cites·18 claims
- 1192US4636897APerpendicular magnetic recording and reproducing thin film headHITACHI LTD·Filed 1983·Granted Jan 13, 1987·55 cites·11 claims
- 1291US7782566B2Magnetic recording and reading deviceHITACHI GLOBAL STORAGE TECH·Filed 2007·Granted Aug 24, 2010·6 cites·17 claims
- 1391US5143794AMagnetic recording media for longitudinal recording, process for producing the same and magnetic memory apparatusHITACHI LTD·Filed 1989·Granted Sep 1, 1992·49 cites·8 claims
- 1491US4950548AMagnetic recording medium and method of producing sameHITACHI LTD·Filed 1989·Granted Aug 21, 1990·42 cites·15 claims
- 1590US8760779B2Energy-assisted magnetic recording head and systems thereof with environmental conditions controlJOHNS WILLIAM D·Filed 2011·Granted Jun 24, 2014·25 cites·19 claims
- 1690US6498702B1Magnetic head supporting apparatus having thermally insulated read/write IC mounted on arm portions thereofHITACHI LTD·Filed 2000·Granted Dec 24, 2002·25 cites·12 claims
- 1790US5750230AMagnetic recording media and magnetic recording system using the sameHITACHI LTD·Filed 1993·Granted May 12, 1998·44 cites·27 claims
- 1889US4651248AThin-film magnetic headHITACHI LTD·Filed 1983·Granted Mar 17, 1987·34 cites·8 claims
- 1988US5759681AMagnetic recording medium and magnetic recording system using the sameHITACHI LTD·Filed 1996·Granted Jun 2, 1998·53 cites·25 claims
- 2088US4748089AMultilayered ferromagnetic amorphous alloy film and magnetic head employing the sameHITACHI LTD·Filed 1984·Granted May 31, 1988·30 cites·17 claims
- 2188US4539616AThin film magnetic head and fabricating method thereofHITACHI LTD·Filed 1982·Granted Sep 3, 1985·31 cites·13 claims
- 2285US9159360B2Servo pattern by microwave assisted magnetic recording, perpendicular magnetic recording medium, magnetic storage device and method for manufacturing the sameHITACHI LTD·Filed 2013·Granted Oct 13, 2015·7 cites·17 claims
- 2385US8953282B2Magnetic head, and magnetic storage apparatusHITACHI LTD·Filed 2013·Granted Feb 10, 2015·7 cites·21 claims
- 2484US6324035B2Magnetic recording and reading deviceHITACHI LTD·Filed 2001·Granted Nov 27, 2001·10 cites·20 claims
- 2583US7177115B2Magnetic recording and reading deviceHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Feb 13, 2007·9 cites·21 claims
- 2683US4631612AMagnetic recording and reproducing systemSHIIKI KAZUO·Filed 1983·Granted Dec 23, 1986·29 cites·9 claims
- 2782US6627253B2Magnetic recording media for longitudinal recording, process for producing the same and magnetic memory apparatusHITACHI LTD·Filed 2001·Granted Sep 30, 2003·16 cites·6 claims
- 2882US4316228AMagnetic headHITACHI LTD·Filed 1979·Granted Feb 16, 1982·22 cites·7 claims
- 2981US9129635B2Magnetic recording medium with controlled anisotropic fields and magnetic memory deviceHITACHI LTD·Filed 2013·Granted Sep 8, 2015·5 cites·5 claims
- 3081US8643972B2Magnetic storage apparatus, head drive controller, and head drive control methodSHIROISHI YOSHIHIRO·Filed 2012·Granted Feb 4, 2014·8 cites·24 claims
- 3181US6819531B2Magnetic recording and reading device having 50 mb/s transfer rateHITACHI LTD·Filed 2002·Granted Nov 16, 2004·8 cites·3 claims
- 3280US6618225B2Magnetic head supporting apparatus having thermally insulated IC mounted on an arm portionHITACHI LTD·Filed 2002·Granted Sep 9, 2003·11 cites·12 claims
- 3377US5665478AMagnetic recording media for longitudinal recordingHITACHI LTD·Filed 1994·Granted Sep 9, 1997·32 cites·44 claims
- 3476US6569545B1Magnetic recording medium and a magnetic storage apparatusHITACHI LTD·Filed 1999·Granted May 27, 2003·24 cites·2 claims
- 3576US5835305AMagnetic disk apparatus employing liquid bearing type or physical contact type magnetic head sliderHITACHI LTD·Filed 1994·Granted Nov 10, 1998·24 cites·37 claims
- 3676US4883711AMagnetic recording mediumHITACHI LTD·Filed 1987·Granted Nov 28, 1989·30 cites·9 claims
- 3775US6057021AMagnetic recording media and magnetic recording system using the sameHITACHI LTD·Filed 1997·Granted May 2, 2000·42 cites·7 claims
- 3874US6404605B2Magnetic recording and reading deviceHITACHI LTD·Filed 2000·Granted Jun 11, 2002·5 cites·3 claims
- 3973US6266210B1Magnetic recording and reading deviceHITACHI LTD·Filed 1999·Granted Jul 24, 2001·13 cites·16 claims
- 4073US4576876AMagnetic recording mediumHITACHI LTD·Filed 1984·Granted Mar 18, 1986·23 cites·16 claims
- 4172US5723198AMulti-layered magnetic recording medium and magnetic recording system employing the sameHITACHI LTD·Filed 1994·Granted Mar 3, 1998·29 cites·94 claims
- 4272US4439794AMagnetic headHITACHI LTD·Filed 1981·Granted Mar 27, 1984·16 cites·11 claims
- 4370US6335103B1Magnetic recording media for longitudinal recordingHITACHI LTD·Filed 1997·Granted Jan 1, 2002·21 cites·26 claims
- 4467US6795275B2Magnetic disk device and magnetic head sliderHITACHI LTD·Filed 2002·Granted Sep 21, 2004·6 cites·6 claims
- 4567US5618639AMagnetic recording medium and magnetic recording apparatusHITACHI LTD·Filed 1994·Granted Apr 8, 1997·17 cites·29 claims
- 4664US7339762B2Magnetic recording and reading deviceHITACHI GLOBAL STORAGE TECH·Filed 2007·Granted Mar 4, 2008·0 cites·14 claims
- 4764US6924048B2Magnetic recording medium and a magnetic storage apparatusHITACHI LTD·Filed 2003·Granted Aug 2, 2005·4 cites·7 claims
- 4862US6483660B1Disk drive unit having multiple disks arranged in a planeHITACHI LTD·Filed 1997·Granted Nov 19, 2002·15 cites·7 claims
- 4962US6130797AMagnetic recorder and magnetooptical recorderHITACHI LTD·Filed 1995·Granted Oct 10, 2000·16 cites·17 claims
- 5062US4450494AMagnetic headHITACHI LTD·Filed 1981·Granted May 22, 1984·11 cites·28 claims
Showing the top 50 of 60 patent records by PatentIndex Score.
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