Inventor · disambiguated record
Tomoo Yamamoto
Also filed as: YAMAMOTO TOMOO
39 granted patents·4 pending applications·745 citations·filing 1979–2009
98Inventor score
Files withHITACHI LTD26HITACHI GLOBAL STORAGE TECH11DAINIPPON SCREEN MFG1HITACHI GLOBAL STORAGE TECH NL1SEIKO INSTR & ELECTRONICS1
Top patents by PatentIndex Score
43 records- 0194US5605733AMagnetic recording medium, method for its production, and system for its useHITACHI LTD·Filed 1993·Granted Feb 25, 1997·70 cites·28 claims
- 0292US5815343AMagnetic recording medium, process for producing the same and magnetic recording systemHITACHI LTD·Filed 1997·Granted Sep 29, 1998·77 cites·62 claims
- 0391US6638648B2Perpendicular magnetic recording medium and magnetic storage apparatus using the sameHITACHI LTD·Filed 2001·Granted Oct 28, 2003·27 cites·7 claims
- 0490US5750230AMagnetic recording media and magnetic recording system using the sameHITACHI LTD·Filed 1993·Granted May 12, 1998·44 cites·27 claims
- 0588US5759681AMagnetic recording medium and magnetic recording system using the sameHITACHI LTD·Filed 1996·Granted Jun 2, 1998·53 cites·25 claims
- 0686US7532436B2Magnetic recording medium and magnetic memory device for high density recordingHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted May 12, 2009·7 cites·16 claims
- 0785US6403240B1Magnetic recording media and magnetic recording system using the sameHITACHI LTD·Filed 1997·Granted Jun 11, 2002·35 cites·9 claims
- 0884US5102623AInfinitesimal liquid reactorSEIKO INSTR INC·Filed 1988·Granted Apr 7, 1992·49 cites·6 claims
- 0983US5650889AMagnetic recording medium containing heavy rare gas atoms, and a magnetic transducing system using the mediumHITACHI LTD·Filed 1995·Granted Jul 22, 1997·40 cites·27 claims
- 1082US6596420B2Magnetic recording media and magnetic recording system using the sameHITACHI LTD·Filed 2002·Granted Jul 22, 2003·12 cites·5 claims
- 1182US5922456ALongitudal magnetic recording medium having a multi-layered underlayer and magnetic storage apparatus using such magnetic recording mediumHITACHI LTD·Filed 1997·Granted Jul 13, 1999·38 cites·31 claims
- 1281US6001447ALongitudinal magnetic recording media and magnetic storage apparatus using the sameHITACHI LTD·Filed 1998·Granted Dec 14, 1999·34 cites·27 claims
- 1380US6706426B1Longitudinal magnetic recording mediaHITACHI LTD·Filed 2000·Granted Mar 16, 2004·14 cites·9 claims
- 1480US6080476AMagnetic recording medium and magnetic recording system using such a magnetic recording mediumHITACHI LTD·Filed 1998·Granted Jun 27, 2000·32 cites·8 claims
- 1575US6177208B1Magnetic recording system and magnetic recording medium used thereforHITACHI LTD·Filed 1999·Granted Jan 23, 2001·24 cites·16 claims
- 1675US6057021AMagnetic recording media and magnetic recording system using the sameHITACHI LTD·Filed 1997·Granted May 2, 2000·42 cites·7 claims
- 1772US5723198AMulti-layered magnetic recording medium and magnetic recording system employing the sameHITACHI LTD·Filed 1994·Granted Mar 3, 1998·29 cites·94 claims
- 1866US5919581AMagnetic recording system and magnetic recording medium used thereforHITACHI LTD·Filed 1996·Granted Jul 6, 1999·16 cites·16 claims
- 1965US7163756B2Magnetic recording mediumHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Jan 16, 2007·5 cites·13 claims
- 2065US4308534AMultiplexing liquid crystal display device having different display formatsSEIKO INSTR & ELECTRONICS·Filed 1979·Granted Dec 29, 1981·17 cites·11 claims
- 2163US8647755B2Perpendicular magnetic recording medium and manufacturing method thereofYAMAMOTO TOMOO·Filed 2008·Granted Feb 11, 2014·2 cites·5 claims
- 2261US7876530B2Magnetic recording medium having a cobalt-based alloy film for high density recording and magnetic storage device using sameHITACHI GLOBAL STORAGE TECH NL·Filed 2009·Granted Jan 25, 2011·2 cites·19 claims
- 2359US7056604B2Magnetic recording media and magnetic recording system using the sameHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Jun 6, 2006·11 cites·8 claims
- 2459US6544672B1Magnetic recording medium and magnetic storageHITACHI LTD·Filed 2000·Granted Apr 8, 2003·12 cites·3 claims
- 2558US5782978ACoating device with movable fluid supply nozzle and rotatable substrate holderDAINIPPON SCREEN MFG·Filed 1997·Granted Jul 21, 1998·23 cites·17 claims
- 2657US6613428B2Magnetic recording medium and magnetic recording and reproducing apparatus wherein the magnetic layer has a fluctuation of field; A or Hf of not less than 30 OerstedsHITACHI LTD·Filed 2001·Granted Sep 2, 2003·4 cites·2 claims
- 2753US7545604B2Magnetic recording medium having a cobalt-based alloy film for high density recording and magnetic storage device using sameHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Jun 9, 2009·0 cites·17 claims
- 2852US7273667B2Longitudinal multi-layer magnetic recording mediumHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Sep 25, 2007·1 cites·15 claims
- 2952US6881504B2Perpendicular magnetic recording medium and magnetic storage apparatus using the sameHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Apr 19, 2005·1 cites·16 claims
- 3052US6605374B2Magnetic recording medium and magnetic recording system using such a magnetic recording mediumHITACHI LTD·Filed 2002·Granted Aug 12, 2003·3 cites·4 claims
- 3150US6846577B2Magnetic recording medium possessing a fluctuation field of not less than 30 OeHITACHI LTD·Filed 2003·Granted Jan 25, 2005·2 cites·11 claims
- 3250US2008113225A1Perpendicular magnetic recording medium and method for manufacturing the sameHITACHI GLOBAL STORAGE TECH·Filed 2007·Application pending·0 cites
- 3347US7157162B2Magnetic recording medium and magnetic recording and reproducing apparatusHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Jan 2, 2007·0 cites·5 claims
- 3447US6251532B1Magnetic recording medium and magnetic storage device using the sameHITACHI LTD·Filed 1995·Granted Jun 26, 2001·11 cites·23 claims
- 3547US2006228588A1Magnetic recording mediumHITACHI GLOBAL STORAGE TECH·Filed 2006·Application pending·0 cites
- 3646US7645528B2Magnetic recording media with ultra-high recording densityHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Jan 12, 2010·0 cites·4 claims
- 3744US6627255B2Method of manufacturing a magnetic recording mediaHITACHI LTD·Filed 2002·Granted Sep 30, 2003·0 cites·1 claims
- 3843US6365287B1Magnetic recording media and magnetic storage deviceHITACHI LTD·Filed 2000·Granted Apr 2, 2002·0 cites·6 claims
- 3943US2002146592A1Magnetic recording medium and magnetic storage device using the sameFiled 2002·Application pending·0 cites
- 4042US6310748B1Magnetic thin film magnetic recording mediumHITACHI LTD·Filed 1995·Granted Oct 30, 2001·5 cites·17 claims
- 4138US6403242B1Magnetic recording medium and magnetic recording system using such a magnetic recording mediumHITACHI LTD·Filed 2000·Granted Jun 11, 2002·2 cites·3 claims
- 4238US2002018920A1Magnetic recording medium and magnetic recording apparatusHITACHI LTD·Filed 2001·Application pending·0 cites
- 4333US7115329B1Magnetic recording medium and magnetic storage deviceHITACHI GLOBAL STORAGE TECH·Filed 1999·Granted Oct 3, 2006·1 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →