Inventor · disambiguated record
Takeo Kagami
Also filed as: KAGAMI TAKEO
51 granted patents·8 pending applications·325 citations·filing 2002–2020
98Inventor score
Top patents by PatentIndex Score
59 records- 0193US8300359B2Perpendicular magnetic recording head and magnetic recording deviceHIRATA KEI·Filed 2009·Granted Oct 30, 2012·16 cites·14 claims
- 0293US6669983B2Manufacturing method of thin-film magnetic head with magnetoresistive effect elementTDK CORP·Filed 2002·Granted Dec 30, 2003·44 cites·39 claims
- 0389US7652854B2Magneto-resistive or tunneling magneto-resistive element having a shielding film of an amorphous layer above a crystalline layer, and method for manufacturing the sameTDK CORP·Filed 2006·Granted Jan 26, 2010·9 cites·12 claims
- 0489US7308751B2Magnetic head and method of manufacturing same, head suspension assembly and magnetic disk apparatusTDK CORP·Filed 2007·Granted Dec 18, 2007·8 cites·9 claims
- 0588US7784171B2Method of manufacturing a magneto-resistive deviceTDK CORP·Filed 2007·Granted Aug 31, 2010·6 cites·8 claims
- 0688US7352539B2Thin-film magnetic head having a covered insulating layerTDK CORP·Filed 2006·Granted Apr 1, 2008·16 cites·1 claims
- 0787US7916430B2Thin-film magnetic head and manufacturing method thereofTDK CORP·Filed 2007·Granted Mar 29, 2011·8 cites·4 claims
- 0887US7768747B2Thin-film magnetic head and manufacturing method thereofTDK CORP·Filed 2007·Granted Aug 3, 2010·7 cites·7 claims
- 0987US7542245B2Composite thin-film magnetic head with non-magnetic conductive layer to balance parasitic capacitancesTDK CORP·Filed 2006·Granted Jun 2, 2009·7 cites·10 claims
- 1087US7436633B2Thin-film magnetic head, head gimbal assembly and hard disk systemTDK CORP·Filed 2005·Granted Oct 14, 2008·8 cites·9 claims
- 1186US7675716B2Composite thin-film magnetic head, magnetic head assembly and magnetic disk drive apparatusTDK CORP·Filed 2006·Granted Mar 9, 2010·8 cites·51 claims
- 1286US7372282B2Method and apparatus for testing tunnel magnetoresistive effect element, manufacturing method of tunnel magnetoresistive effect element and tunnel magnetoresistive effect elementTDK CORP·Filed 2006·Granted May 13, 2008·12 cites·48 claims
- 1386US7057859B2Magneto-resistive device with reduced susceptibility to ion beam damageTDK CORP·Filed 2003·Granted Jun 6, 2006·20 cites·28 claims
- 1483US7770284B2Manufacturing method of magnetoresistive effect elementTDK CORP·Filed 2007·Granted Aug 10, 2010·5 cites·10 claims
- 1582US8867168B2Magnetic head for perpendicular magnetic recording having a write shieldTDK CORP·Filed 2012·Granted Oct 21, 2014·6 cites·23 claims
- 1682US8233237B2Perpendicular magnetic write head and magnetic recording deviceANAGAWA KENKICHI·Filed 2010·Granted Jul 31, 2012·7 cites·6 claims
- 1781US7715155B2Thin-film magnetic head and manufacturing method thereofTDK CORP·Filed 2007·Granted May 11, 2010·4 cites·11 claims
- 1880US7784170B2Method for forming a resist pattern of magnetic device by etching with a gas cluster ion beamTDK CORP·Filed 2007·Granted Aug 31, 2010·3 cites·5 claims
- 1980US6992870B2Magneto-resistive device, and magnetic head and head suspension assembly using sameTDK CORP·Filed 2002·Granted Jan 31, 2006·14 cites·18 claims
- 2079US8240026B2Method of manufacturing a magneto-resistive deviceKAGAMI TAKEO·Filed 2008·Granted Aug 14, 2012·4 cites·1 claims
- 2178US7950135B2Manufacturing method of magnetoresistive effect elementTDK CORP·Filed 2007·Granted May 31, 2011·3 cites·14 claims
- 2278US7190559B2Thin-film magnetic head having the length of the pinned and antiferromagnetic layers greater than the width dimension thereof and/or the length of the free layerTDK CORP·Filed 2003·Granted Mar 13, 2007·12 cites·9 claims
- 2377US7231705B2Method for forming a resist pattern of magnetic deviceTDK CORP·Filed 2004·Granted Jun 19, 2007·10 cites·9 claims
- 2476US7843667B2Thin film magnetic head, head gimbal assembly, head arm assembly and magnetic disk deviceTDK CORP·Filed 2007·Granted Nov 30, 2010·3 cites·12 claims
- 2575US7672084B2Composite thin-film magnetic head with non-magnetic conductive layer electrically connected with lower pole layer to increase counter electrode areaTDK CORP·Filed 2009·Granted Mar 2, 2010·2 cites·8 claims
- 2675US7241514B2Magneto-resistive device, and magnetic head, head suspension assembly and magnetic disk apparatus using magneto-resistive deviceTDK CORP·Filed 2004·Granted Jul 10, 2007·10 cites·12 claims
- 2775US6822837B2Thin-film magnetic head and method of manufacturing same, and method of forming a patterned thin film for a thin-film magnetic headTDK CORP·Filed 2002·Granted Nov 23, 2004·10 cites·12 claims
- 2874US7864489B2Thin-film magnetic head having an antistatic layer preventing a protective coat from being electrostatically chargedTDK CORP·Filed 2007·Granted Jan 4, 2011·2 cites·28 claims
- 2973US10991391B1Circuits and methods for modifying the write current waveform to improve track density in HDDHEADWAY TECH INC·Filed 2020·Granted Apr 27, 2021·2 cites·8 claims
- 3073US8427790B2Thin film magnetic head having similarly structured resistive film pattern and magnetic bias layerHIRATA KEI·Filed 2008·Granted Apr 23, 2013·2 cites·16 claims
- 3173US7898775B2Magnetoresistive device having bias magnetic field applying layer that includes two magnetic layers antiferromagnetically coupled to each other through intermediate layerTDK CORP·Filed 2007·Granted Mar 1, 2011·2 cites·10 claims
- 3272US7548400B2Thin-film magnetic head comprising bias layers having a large length in track width directionTDK CORP·Filed 2005·Granted Jun 16, 2009·4 cites·4 claims
- 3372US7312961B2Magnetic head and method of manufacturing same, head suspension assembly and magnetic disk apparatusTDK CORP·Filed 2004·Granted Dec 25, 2007·7 cites·9 claims
- 3469US7573675B2Thin film magnetic headTDK CORP·Filed 2006·Granted Aug 11, 2009·1 cites·13 claims
- 3569US7253994B2Magnetic head, head suspension assembly and magnetic disk apparatusTDK CORP·Filed 2003·Granted Aug 7, 2007·7 cites·13 claims
- 3668US8144427B2Magnetic head, head assembly and magnetic recording/reproducing apparatusANTOKU YOSUKE·Filed 2008·Granted Mar 27, 2012·1 cites·11 claims
- 3767US7692901B2Magnetoresistive effect thin-film magnetic head with anti-ferromagnetic layer for magnetic domain controlTDK CORP·Filed 2006·Granted Apr 6, 2010·2 cites·11 claims
- 3866US8085038B2Method for testing noise of thin-film magnetic head, and magnetic disk drive apparatus with noise testing functionUESUGI TAKUMI·Filed 2007·Granted Dec 27, 2011·2 cites·16 claims
- 3966US6839205B2Magneto-resistive device, and magnetic head and head suspension assembly using sameTDK CORP·Filed 2002·Granted Jan 4, 2005·12 cites·20 claims
- 4065US7313857B2Method of manufacturing a magneto-resistive deviceTDK CORP·Filed 2004·Granted Jan 1, 2008·5 cites·4 claims
- 4164US8077436B2CPP-type magnetoresistance effect element having three magnetic layersHIRATA KEI·Filed 2008·Granted Dec 13, 2011·4 cites·15 claims
- 4264US7207100B2Method of manufacturing a magnetic headTDK CORP·Filed 2004·Granted Apr 24, 2007·4 cites·7 claims
- 4362US7489481B2CCP Head having leads of substantially the same size and shape and not intervening between a shield layer and a MR elementTDK CORP·Filed 2005·Granted Feb 10, 2009·1 cites·20 claims
- 4458US8559133B2Perpendicular magnetic write head and magnetic write deviceHIRATA KEI·Filed 2009·Granted Oct 15, 2013·0 cites·17 claims
- 4556US2008030908A1Magnetoresistive effect element, thin-film magnetic head, method for manufacturing magnetoresistive effect element, and method for manufacturing thin-film magnetic headTDK CORP·Filed 2007·Application pending·0 cites
- 4652US7832085B2Method of manufacturing magnetic head and method of manufacturing magnetic head substructureTDK CORP·Filed 2007·Granted Nov 16, 2010·0 cites·22 claims
- 4751US7876537B2Magnetoresistive element incorporating conductive film disposed on peripheral surface of layered structure including spacer layer, free layer and pinned layer, the conductive film allowing conduction between the free layer and the pinned layerTDK CORP·Filed 2007·Granted Jan 25, 2011·1 cites·19 claims
- 4851US2008074800A1Manufacturing method of thin-film magnetic head and thin-film magnetic headTDK CORP·Filed 2007·Application pending·0 cites
- 4950US8117736B2Method of lapping a magnetic head sliderOHTA NAOKI·Filed 2008·Granted Feb 21, 2012·0 cites·10 claims
- 5050US2008218912A1CPP-type magnetoresistive element having spacer layer that includes semiconductor layerTDK CORP·Filed 2007·Application pending·0 cites
Showing the top 50 of 59 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →