Inventor · disambiguated record
Yuzuru Hosoe
Also filed as: HOSOE YUZURU
60 granted patents·10 pending applications·977 citations·filing 1981–2013
99Inventor score
Files withHITACHI LTD45HITACHI GLOBAL STORAGE TECH20HGST Netherlands BV1IWASAKI TOMIO1MATSUMOTO HIROYUKI1
Top patents by PatentIndex Score
70 records- 0193US7368185B2Perpendicular magnetic recording media and magnetic storage apparatus using the sameHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted May 6, 2008·35 cites·12 claims
- 0292US5815343AMagnetic recording medium, process for producing the same and magnetic recording systemHITACHI LTD·Filed 1997·Granted Sep 29, 1998·77 cites·62 claims
- 0390US6221508B1Magnetic recording mediaHITACHI LTD·Filed 1998·Granted Apr 24, 2001·47 cites·8 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
- 0686US6544667B1Magnetic recording medium, producing method of the same and magnetic recording systemHITACHI LTD·Filed 2000·Granted Apr 8, 2003·17 cites·17 claims
- 0786US4581579AOptical magnetic-field measuring apparatus having improved temperature characteristicsHITACHI LTD·Filed 1983·Granted Apr 8, 1986·43 cites·8 claims
- 0885US6403240B1Magnetic recording media and magnetic recording system using the sameHITACHI LTD·Filed 1997·Granted Jun 11, 2002·35 cites·9 claims
- 0983US7556871B2Magnetic recording medium containing first and second recording layers, each layer containing a columnar structureHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Jul 7, 2009·5 cites·18 claims
- 1083US5998040AMultilayer which shows magnetoresistive effect and magnetoresistive element using the sameHITACHI LTD·Filed 1991·Granted Dec 7, 1999·49 cites·36 claims
- 1183US5650889AMagnetic 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
- 1282US6773826B2Perpendicular magnetic recording media and magnetic storage apparatus using the sameHITACHI LTD·Filed 2002·Granted Aug 10, 2004·24 cites·12 claims
- 1382US6709768B2Magnetic recording medium and its manufacturing method and magnetic recording system using such a magnetic recording mediumHITACHI GLOBAL STORAGE TECH·Filed 2002·Granted Mar 23, 2004·13 cites·6 claims
- 1482US6596420B2Magnetic recording media and magnetic recording system using the sameHITACHI LTD·Filed 2002·Granted Jul 22, 2003·12 cites·5 claims
- 1582US5922456ALongitudal 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
- 1681US6509111B1Magnetic recording media and magnetic disk apparatusHITACHI LTD·Filed 2000·Granted Jan 21, 2003·16 cites·5 claims
- 1781US6001447ALongitudinal magnetic recording media and magnetic storage apparatus using the sameHITACHI LTD·Filed 1998·Granted Dec 14, 1999·34 cites·27 claims
- 1880US7618722B2Perpendicular magnetic recording media and magnetic storage apparatus using the sameHITACHI GLOBAL STORAGE TECH·Filed 2008·Granted Nov 17, 2009·3 cites·19 claims
- 1980US7457064B2Perpendicular magnetic recording medium, method of evaluating magnetic properties of the sameHITACHI GLOBAL STORAGE TECH·Filed 2007·Granted Nov 25, 2008·4 cites·6 claims
- 2080US6080476AMagnetic recording medium and magnetic recording system using such a magnetic recording mediumHITACHI LTD·Filed 1998·Granted Jun 27, 2000·32 cites·8 claims
- 2179US7641989B2Perpendicular magnetic recording medium for high density recording and manufacturing of the sameHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Jan 5, 2010·3 cites·11 claims
- 2278US6723457B2Perpendicular magnetic recording media, manufacturing process of the same, and magnetic storage apparatus using the sameHITACHI LTD·Filed 2002·Granted Apr 20, 2004·32 cites·9 claims
- 2377US6583958B1Magnetic recording medium and magnetic storage system using sameHITACHI LTD·Filed 2000·Granted Jun 24, 2003·11 cites·12 claims
- 2477US6574060B2Magnetic storage apparatusHITACHI LTD·Filed 2001·Granted Jun 3, 2003·9 cites·6 claims
- 2576US6569545B1Magnetic recording medium and a magnetic storage apparatusHITACHI LTD·Filed 1999·Granted May 27, 2003·24 cites·2 claims
- 2675US6177208B1Magnetic recording system and magnetic recording medium used thereforHITACHI LTD·Filed 1999·Granted Jan 23, 2001·24 cites·16 claims
- 2775US6057021AMagnetic recording media and magnetic recording system using the sameHITACHI LTD·Filed 1997·Granted May 2, 2000·42 cites·7 claims
- 2872US5723198AMulti-layered magnetic recording medium and magnetic recording system employing the sameHITACHI LTD·Filed 1994·Granted Mar 3, 1998·29 cites·94 claims
- 2969US7799447B2Perpendicular magnetic recording medium having grain boundary layer containing ferromagnetic elementHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Sep 21, 2010·1 cites·19 claims
- 3069US7534507B2Perpendicular magnetic recording medium for high density magnetic recording and manufacturing of the sameHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted May 19, 2009·1 cites·5 claims
- 3169US7041393B2Perpendicular magnetic recording media, manufacturing process of the same, and magnetic storage apparatus using the sameHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted May 9, 2006·7 cites·39 claims
- 3268US7651795B2Perpendicular magnetic recording medium and manufacturing of the sameHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Jan 26, 2010·1 cites·6 claims
- 3366US6808824B2Perpendicular magnetic recording mediaHITACHI LTD·Filed 2002·Granted Oct 26, 2004·9 cites·8 claims
- 3466US5919581AMagnetic recording system and magnetic recording medium used thereforHITACHI LTD·Filed 1996·Granted Jul 6, 1999·16 cites·16 claims
- 3565US7050253B2Magnetic recording media and magnetic storage apparatus using the sameHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted May 23, 2006·4 cites·24 claims
- 3664US6924048B2Magnetic recording medium and a magnetic storage apparatusHITACHI LTD·Filed 2003·Granted Aug 2, 2005·4 cites·7 claims
- 3764US6815083B2Perpendicular magnetic recording medium and process of production thereofHITACHI LTD·Filed 2002·Granted Nov 9, 2004·8 cites·16 claims
- 3863US6197367B1Magnetic recording medium, method of fabricating magnetic recording medium, and magnetic storageHITACHI LTD·Filed 1997·Granted Mar 6, 2001·13 cites·4 claims
- 3961US7182974B2Magnetic recording medium and its manufacturing method and magnetic recording system using such a magnetic recording mediumHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Feb 27, 2007·3 cites·3 claims
- 4059US7056604B2Magnetic recording media and magnetic recording system using the sameHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Jun 6, 2006·11 cites·8 claims
- 4159US6544672B1Magnetic recording medium and magnetic storageHITACHI LTD·Filed 2000·Granted Apr 8, 2003·12 cites·3 claims
- 4257US6613428B2Magnetic 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
- 4357US5906884AMagnetic recording mediumHITACHI LTD·Filed 1995·Granted May 25, 1999·13 cites·3 claims
- 4454US6372367B1Magnetic recording medium, method for producing the same and magnetic recording apparatus using the sameHITACHI LTD·Filed 1999·Granted Apr 16, 2002·20 cites·6 claims
- 4552US6692843B2Magnetic recording medium, method of fabricating magnetic recording medium, and magnetic storageHITACHI GLOBAL STORAGE TECH·Filed 2001·Granted Feb 17, 2004·1 cites·8 claims
- 4652US6605374B2Magnetic recording medium and magnetic recording system using such a magnetic recording mediumHITACHI LTD·Filed 2002·Granted Aug 12, 2003·3 cites·4 claims
- 4750US8802247B2Perpendicular magnetic recording medium with high medium S/NMATSUMOTO HIROYUKI·Filed 2006·Granted Aug 12, 2014·0 cites·13 claims
- 4850US6852432B2Magnetic recording media and magnetic disk apparatusHITACHI LTD·Filed 2002·Granted Feb 8, 2005·9 cites·14 claims
- 4950US6846577B2Magnetic recording medium possessing a fluctuation field of not less than 30 OeHITACHI LTD·Filed 2003·Granted Jan 25, 2005·2 cites·11 claims
- 5049US7153546B2Perpendicular magnetic recording media, manufacturing process of the same, and magnetic storage apparatus using the sameHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Dec 26, 2006·6 cites·4 claims
Showing the top 50 of 70 patent records by PatentIndex Score.
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