Inventor · disambiguated record
Takehiro Kamigama
Also filed as: KAMIGAMA TAKEHIRO
84 granted patents·8 pending applications·728 citations·filing 1996–2010
99Inventor score
Top patents by PatentIndex Score
92 records- 0195US6839204B2Head gimbal assembly with a ground or source voltage lead conductorTDK CORP·Filed 2001·Granted Jan 4, 2005·52 cites·13 claims
- 0294US7365942B2Thin-film magnetic headHEADWAY TECHNOLOGIES INC·Filed 2005·Granted Apr 29, 2008·20 cites·7 claims
- 0394US7227719B2Thin film magnetic head and method of manufacturing the sameSAE MAGNETICS HK LTD·Filed 2003·Granted Jun 5, 2007·45 cites·78 claims
- 0493US5768055AMagnetic recording head having a carbon overcoat array on slider air bearings surfacesSAE MAGNETICS HK LTD·Filed 1996·Granted Jun 16, 1998·103 cites·17 claims
- 0590US7492555B2Thin-film magnetic head structure, method of manufacturing the same, and thin-film magnetic headHEADWAY TECHNOLOGIES INC·Filed 2005·Granted Feb 17, 2009·8 cites·2 claims
- 0690US6950279B2Thin-film magnetic head with thin-film coil of low resistanceSAE MAGNETICS HK LTD·Filed 2003·Granted Sep 27, 2005·25 cites·20 claims
- 0790US6829818B2Manufacturing method of a head gimbal assemblyTDK CORP·Filed 2001·Granted Dec 14, 2004·27 cites·11 claims
- 0889US7310206B2Magnetic thin film head with heat-assisted write section and hard disk drive incorporating sameSAE MAGNETICS HK LTD·Filed 2004·Granted Dec 18, 2007·27 cites·28 claims
- 0989US6801407B2Thin film magnetic head and method of manufacturing the sameHEADWAY TECHNOLOGIES INC·Filed 2002·Granted Oct 5, 2004·27 cites·132 claims
- 1089US6762911B2Combination type thin film magnetic head and method of manufacturing the sameHEADWAY TECHNOLOGIES INC·Filed 2002·Granted Jul 13, 2004·22 cites·23 claims
- 1188US7463450B2Thin film magnetic headHEADWEAY TECHNOLOGIES INC·Filed 2005·Granted Dec 9, 2008·11 cites·14 claims
- 1288US6541065B1Thin-film magnetic head and method of manufacturing sameHEADWAY TECHNOLOGIES INC·Filed 2002·Granted Apr 1, 2003·21 cites·18 claims
- 1386US8169740B2Thin-film magnetic head structure and thin-film magnetic headSASAKI YOSHITAKA·Filed 2008·Granted May 1, 2012·5 cites·8 claims
- 1485US7151647B2Thin film magnetic head and manufacturing method for creating high surface recording density and including a second yoke portion having two layers of which one is etched to form a narrow portion and a sloped flare portionSAE MAGNETICS HK LTD·Filed 2003·Granted Dec 19, 2006·19 cites·29 claims
- 1584US6731464B2Slider of thin-film magnetic headHEADWAY TECHNOLOGIES INC·Filed 2002·Granted May 4, 2004·14 cites·16 claims
- 1683US7463448B2Thin film magnetic head having upper and lower poles and a gap film within a trenchHEADWAY TECHNOLOGIES INC·Filed 2005·Granted Dec 9, 2008·5 cites·24 claims
- 1783US7392578B2Thin film magnetic head and manufacturing method thereofHEADWAY TECHNOLOGIES INC·Filed 2007·Granted Jul 1, 2008·4 cites·7 claims
- 1882US7526857B2Method of manufacturing thin-film magnetic headHEADWAY TECHNOLOGIES INC·Filed 2005·Granted May 5, 2009·4 cites·2 claims
- 1982US7185416B2Method of manufacturing a slider for a thin-film magnetic headSAE MAGNETICS HK LTD·Filed 2005·Granted Mar 6, 2007·4 cites·13 claims
- 2082US7155809B2Method of manufacturing thin-film magnetic headSAE MAGNETICS HK LTD·Filed 2006·Granted Jan 2, 2007·4 cites·23 claims
- 2180US7721415B2Method of manufacturing a thin-film magnetic headHEADWAY TECHNOLOGIES INC·Filed 2006·Granted May 25, 2010·9 cites·12 claims
- 2280US7085099B2Thin film magnetic head having spiral coils and manufacturing method thereofSAE MAGNETICS HONG KONG LTD·Filed 2004·Granted Aug 1, 2006·14 cites·19 claims
- 2380US7060207B2Thin film magnetic head and magnetic recording apparatus having a lowered coil resistance value, reduced generated heat, and high-frequencySAE MAGNETICS HK LTD·Filed 2003·Granted Jun 13, 2006·12 cites·22 claims
- 2479US7549216B2Method of manufacturing a thin film magnetic headHEADWAY TECHNOLOGIES INC·Filed 2006·Granted Jun 23, 2009·3 cites·11 claims
- 2578US7408740B2Thin film magnetic head for perpendicular magnetic recording having a main pole with plural grooves in a lower surface thereof and manufacturing method thereforeHEADWAY TECHNOLOGIES INC·Filed 2005·Granted Aug 5, 2008·3 cites·12 claims
- 2677US7239479B2Thin film magnetic head and manufacturing method thereofSAE MAGNETICS HK LTD·Filed 2004·Granted Jul 3, 2007·16 cites·9 claims
- 2777US6614624B2Suspension and head gimbal assembly with the suspensionSAE MAGNETICS HK LTD·Filed 2001·Granted Sep 2, 2003·11 cites·24 claims
- 2876US8174790B2Thin-film magnetic head having remnant coating and remnant insulating film, head gimbal assembly and hard disk driveSASAKI YOSHITAKA·Filed 2010·Granted May 8, 2012·3 cites·6 claims
- 2976US6718623B2Magnetoresistive device and method of manufacturing same, and thin-film magnetic head and method of manufacturing sameHEADWAY TECHNOLOGIES INC·Filed 2002·Granted Apr 13, 2004·9 cites·16 claims
- 3075US7210217B2Method of manufacturing thin film magnetic headSAE MAGNETICS HK LTD·Filed 2005·Granted May 1, 2007·5 cites·16 claims
- 3175US7046480B2Thin film magnetic head and manufacturing method thereofSAE MAGNETICS HK LTD·Filed 2003·Granted May 16, 2006·10 cites·9 claims
- 3274US8018688B2Head stack assembly with spacers to partition drive armsSAE MAGNETICS HK LTD·Filed 2007·Granted Sep 13, 2011·6 cites·13 claims
- 3374US7168156B2Method of manufacturing a thin-film magnetic headSAE MAGNETICS HK LTD·Filed 2006·Granted Jan 30, 2007·7 cites·7 claims
- 3473US6507459B1Head slider suspension, head assembly, and information recording and reproducing apparatus with improved wiring patternTDK CORP·Filed 2000·Granted Jan 14, 2003·9 cites·12 claims
- 3572US7626811B2Low profile disk drive unitSAE MAGNETICS HK LTD·Filed 2007·Granted Dec 1, 2009·2 cites·11 claims
- 3672US7360301B2Method of manufacturing a thin film magnetic headHEADWAY TECHNOLOGIES INC·Filed 2006·Granted Apr 22, 2008·6 cites·12 claims
- 3772US6945847B2Method of lapping medium-opposing surface in thin-film magnetic headTDK CORP·Filed 2004·Granted Sep 20, 2005·8 cites·12 claims
- 3869US6977796B2Wiring pattern and method of manufacturing the same and thin film magnetic head and method of manufacturing the sameSAE MAGNETICS HK LTD·Filed 2002·Granted Dec 20, 2005·10 cites·14 claims
- 3969US6865059B2Slider of thin-film magnetic headHEADWAY TECHNOLOGIES INC·Filed 2004·Granted Mar 8, 2005·5 cites·7 claims
- 4067US7420770B2Magnetic disk drive apparatus having first and second connection sections electronically conducted by pressure contactSAE MAGNETICS HK LTD·Filed 2004·Granted Sep 2, 2008·6 cites·10 claims
- 4167US6940689B2Thin-film magnetic head comprising a first pole layer having multiple layers including a second layer and a thin-film coil having a portion disposed between the second layer and a coupling portion and method of manufacturing the thin-film magnetic headSAE MAGNETICS HK LTD·Filed 2003·Granted Sep 6, 2005·6 cites·29 claims
- 4266US7100269B2Method of manufacturing slider of thin-film magnetic headSAE MAGNETICS HK LTD·Filed 2004·Granted Sep 5, 2006·4 cites·21 claims
- 4366US6884730B2Method of etching a film of magnetic material and method of manufacturing a thin-film magnetic headSAE MAGNETICS HK LTD·Filed 2002·Granted Apr 26, 2005·6 cites·57 claims
- 4465US7141357B2Method of manufacturing thin-film magnetic headHEADWAY TECHNOLOGIES INC·Filed 2004·Granted Nov 28, 2006·10 cites·7 claims
- 4565US6680824B2Head arm assembly, disk apparatus with head arm assembly and manufacturing method of head arm assemblyTDK CORP·Filed 2001·Granted Jan 20, 2004·5 cites·24 claims
- 4664US7943288B2Thin-film magnetic head structure, method of manufacturing the same, and thin-film magnetic headHEADWAY TECHNOLOGIES INC·Filed 2008·Granted May 17, 2011·0 cites·5 claims
- 4764US7158352B2Magnetoresistive device and method of manufacturing same, and thin-film magnetic head and method of manufacturing sameSAE MAGNETICS HK LTD·Filed 2004·Granted Jan 2, 2007·4 cites·4 claims
- 4864US6842307B2Thin-film magnetic head including thin-film coil and lead layer connected via connecting layerHEADWAY TECHNOLOGIES INC·Filed 2002·Granted Jan 11, 2005·4 cites·2 claims
- 4963US8043515B2Thin film magnetic head and manufacturing method thereofHEADWAY TECHNOLOGIES INC·Filed 2008·Granted Oct 25, 2011·0 cites·2 claims
- 5063US7308753B2Method of manufacturing slider of thin-film magnetic headHEADWAY TECHNOLOGIES INC·Filed 2005·Granted Dec 18, 2007·2 cites·2 claims
Showing the top 50 of 92 patent records by PatentIndex Score.
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