Inventor · disambiguated record
Kazumasa Yasuda
Also filed as: YASUDA KAZUMASA
22 granted patents·2 pending applications·390 citations·filing 1975–2024
95Inventor score
Files withSASAKI YOSHITAKA10SAE MAGNETICS HK LTD6SEIKO INSTR & ELECTRONICS3ARAKI HIRONORI1HAKUSAN INC1
Top patents by PatentIndex Score
24 records- 0196US8767347B1Magnetic head for perpendicular magnetic recording having two side shieldsSASAKI YOSHITAKA·Filed 2013·Granted Jul 1, 2014·62 cites·6 claims
- 0296US8295008B1Magnetic head for perpendicular magnetic recording having a main pole and a shieldSASAKI YOSHITAKA·Filed 2011·Granted Oct 23, 2012·66 cites·9 claims
- 0393US8456968B1Thermally-assisted magnetic recording head having dual heat sink layersSASAKI YOSHITAKA·Filed 2012·Granted Jun 4, 2013·23 cites·6 claims
- 0493US8289649B2Magnetic head for perpendicular magnetic recording with shield around main magnetic poleSASAKI YOSHITAKA·Filed 2010·Granted Oct 16, 2012·28 cites·13 claims
- 0591US8493821B1Thermally-assisted magnetic recording head including a shieldSASAKI YOSHITAKA·Filed 2012·Granted Jul 23, 2013·15 cites·14 claims
- 0690US9502053B1Magnetic head for perpendicular magnetic recording with a trailing shield including a plurality of portions different in saturation flux densitySASAKI YOSHITAKA·Filed 2015·Granted Nov 22, 2016·11 cites·17 claims
- 0790US5763108AHigh saturtion magnetization material and magnetic head fabricated therefromHEADWAY TECHNOLOGIES INC·Filed 1997·Granted Jun 9, 1998·88 cites·18 claims
- 0883US9251812B2Magnetic head for perpendicular magnetic recording including angled side shield surfacesSASAKI YOSHITAKA·Filed 2014·Granted Feb 2, 2016·6 cites·8 claims
- 0981US6960117B1Method to eliminate defects on the periphery of a slider due to conventional machining processesSAE MAGNETICS HK LTD·Filed 2004·Granted Nov 1, 2005·26 cites·20 claims
- 1079US9406318B2Magnetic head for perpendicular magnetic recording including two side shields and main pole including lower protrusionSASAKI YOSHITAKA·Filed 2015·Granted Aug 2, 2016·5 cites·8 claims
- 1177US8454848B2Method of manufacturing plasmon generatorSASAKI YOSHITAKA·Filed 2011·Granted Jun 4, 2013·4 cites·20 claims
- 1274US7239488B2MR sensor on an insulating substrate and method of manufactureSAE MAGNETICS HK LTD·Filed 2004·Granted Jul 3, 2007·21 cites·16 claims
- 1372US9495980B1Magnetic head for perpendicular magnetic recording with a coil including two coil portionsSASAKI YOSHITAKA·Filed 2015·Granted Nov 15, 2016·3 cites·10 claims
- 1468US8900466B2Method of manufacturing a near-field light generator including a waveguide and a plasmon generatorARAKI HIRONORI·Filed 2013·Granted Dec 2, 2014·2 cites·12 claims
- 1562US2025125166A1Laser annealing device, laser annealing method, and storage mediumSUMITOMO HEAVY INDUSTRIES·Filed 2024·Application pending·0 cites
- 1661US4123896ADigital electronic timepieceSEIKO INSTR & ELECTRONICS·Filed 1976·Granted Nov 7, 1978·10 cites·5 claims
- 1758US11502235B2Thermoelectric material and thermoelectric moduleHAKUSAN INC·Filed 2018·Granted Nov 15, 2022·0 cites·9 claims
- 1857US7836579B2Method to protect a GMR head from electrostatic damage during the manufacturing processSAE MAGNETICS HK LTD·Filed 2007·Granted Nov 23, 2010·0 cites·8 claims
- 1955US7189150B2System and method for edge blending hard drive head slidersSAE MAGNETICS HK LTD·Filed 2003·Granted Mar 13, 2007·3 cites·29 claims
- 2053US4104864AElectronic timepieceSEIKO INSTR & ELECTRONICS·Filed 1976·Granted Aug 8, 1978·7 cites·1 claims
- 2149US4126992AStem mechanism for a watchSEIKO INSTR & ELECTRONICS·Filed 1975·Granted Nov 28, 1978·8 cites·3 claims
- 2244US7296336B2Method to protect a GMR head from electrostatic damage during the manufacturing processSAE MAGNETICS HK LTD·Filed 2004·Granted Nov 20, 2007·2 cites·6 claims
- 2342US7513820B2Method and apparatus for producing micro-texture on a slider substrate using chemical and mechanical polishing techniquesSAE MAGNETICS HK LTD·Filed 2006·Granted Apr 7, 2009·0 cites·24 claims
- 2442US2006027542A1Method to eliminate defects on the periphery of a slider due to conventional machining processesMAHADEV NIRAJ·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →