Inventor · disambiguated record
William Albert Challener
Also filed as: CHALLENER IV WILLIAM A · CHALLENER WILLIAM · CHALLENER WILLIAM A · CHALLENER WILLIAM ALBERT
95 granted patents·8 pending applications·3,277 citations·filing 1989–2021
99Inventor score
Files withSEAGATE TECHNOLOGY LLC43GEN ELECTRIC21IMATION CORP13CHALLENER WILLIAM ALBERT4MINNESOTA MINING & MFG3
Top patents by PatentIndex Score
103 records- 0198US11249011B2Apparatus and method for evanescent waveguide sensingGLOBAL LIFE SCIENCES SOLUTIONS USA LLC·Filed 2017·Granted Feb 15, 2022·17 cites·23 claims
- 0298US8427925B2HAMR NFT materials with improved thermal stabilityZHAO TONG·Filed 2011·Granted Apr 23, 2013·91 cites·10 claims
- 0398US7440660B1Transducer for heat assisted magnetic recordingSEAGATE TECHNOLOGY LLC·Filed 2007·Granted Oct 21, 2008·61 cites·20 claims
- 0498US7330404B2Near-field optical transducers for thermal assisted magnetic and optical data storageSEAGATE TECHNOLOGY LLC·Filed 2003·Granted Feb 12, 2008·240 cites·22 claims
- 0598US7272079B2Transducer for heat assisted magnetic recordingSEAGATE TECHNOLOGY LLC·Filed 2004·Granted Sep 18, 2007·122 cites·20 claims
- 0698US6944112B2Heat assisted magnetic recording head with a planar waveguideSEAGATE TECHNOLOGY LLC·Filed 2003·Granted Sep 13, 2005·102 cites·34 claims
- 0798US6795630B2Apparatus and method for producing a small spot of optical energySEAGATE TECHNOLOGY LLC·Filed 2003·Granted Sep 21, 2004·158 cites·33 claims
- 0897US8934198B2Recording head including NFT and heatsinkSEAGATE TECHNOLOGY LLC·Filed 2013·Granted Jan 13, 2015·65 cites·20 claims
- 0997US8400902B2Optical waveguide clad materialHUANG XIAOYUE·Filed 2012·Granted Mar 19, 2013·74 cites·20 claims
- 1097US8339740B2Recording head for heat assisted magnetic recording with diffusion barrier surrounding a near field transducerZOU JIE·Filed 2011·Granted Dec 25, 2012·78 cites·20 claims
- 1197US8248891B2Near-field transducers for focusing lightLEE LIEN·Filed 2008·Granted Aug 21, 2012·68 cites·18 claims
- 1297US7266268B2Diffraction gratingSEAGATE TECHNOLOGY LLC·Filed 2005·Granted Sep 4, 2007·55 cites·16 claims
- 1397USRE37473EDiffraction anomaly sensor having grating coated with protective dielectric layerIMATION CORP·Filed 2000·Granted Dec 18, 2001·107 cites·34 claims
- 1497US5925878ADiffraction anomaly sensor having grating coated with protective dielectric layerIMATION CORP·Filed 1997·Granted Jul 20, 1999·179 cites·34 claims
- 1596US8670215B2Recording head for heat assisted magnetic recording with diffusion barrier surrounding a near field transducerSEAGATE TECHNOLOGY LLC·Filed 2013·Granted Mar 11, 2014·40 cites·20 claims
- 1696US8477454B2Recording head for heat assisted magnetic recording with diffusion barrier surrounding a near field transducerSEAGATE TECHNOLOGY LLC·Filed 2012·Granted Jul 2, 2013·44 cites·20 claims
- 1796US7412143B2Heat assisted magnetic recording with heat profile shapingSEAGATE TECHNOLOGY LLC·Filed 2004·Granted Aug 12, 2008·67 cites·23 claims
- 1895US8842391B2Recording head including a near field transducerSEAGATE TECHNOLOGY LLC·Filed 2013·Granted Sep 23, 2014·36 cites·20 claims
- 1995US8385159B2Near field transducer with shaped energy radiating endSEAGATE TECHNOLOGY LLC·Filed 2010·Granted Feb 26, 2013·32 cites·21 claims
- 2095US8149657B2Optical waveguide clad materialHUANG XIAOYUE·Filed 2011·Granted Apr 3, 2012·39 cites·16 claims
- 2195US7869162B2Thin film structure with controlled lateral thermal spreading in the thin filmSEAGATE TECHNOLOGY LLC·Filed 2007·Granted Jan 11, 2011·23 cites·19 claims
- 2295US7027700B2Planar waveguide for heat assisted magnetic recordingSEAGATE TECHNOLOGY LLC·Filed 2003·Granted Apr 11, 2006·54 cites·24 claims
- 2395US5994150AOptical assaying method and system having rotatable sensor disk with multiple sensing regionsIMATION CORP·Filed 1997·Granted Nov 30, 1999·180 cites·21 claims
- 2494US10634890B1Miniaturized microscope for phase contrast and multicolor fluorescence imagingGEN ELECTRIC·Filed 2018·Granted Apr 28, 2020·6 cites·20 claims
- 2594US8711662B2Near-field transducers for focusing lightLEE LIEN·Filed 2012·Granted Apr 29, 2014·27 cites·19 claims
- 2694US8391107B2Slider for heat assisted magnetic recording including a photo detector for monitoring laser powerGAGE EDWARD CHARLES·Filed 2011·Granted Mar 5, 2013·32 cites·22 claims
- 2794US7869309B2Dual wire integrated WAMR/HAMR writing headSEAGATE TECHNOLOGY LLC·Filed 2005·Granted Jan 11, 2011·24 cites·20 claims
- 2894US7839497B1Phase compensator for coupling an electromagnetic wave into an optical condenserSEAGATE TECHNOLOGY LLC·Filed 2006·Granted Nov 23, 2010·17 cites·11 claims
- 2994US7580602B2Beam apodization for a planar solid immersion mirrorSEAGATE TECHNOLOGY LLC·Filed 2007·Granted Aug 25, 2009·34 cites·14 claims
- 3094US7345840B2Light delivery technique for heat assisted magnetic recording headSEAGATE TECHNOLOGY LLC·Filed 2004·Granted Mar 18, 2008·36 cites·25 claims
- 3194US5986762AOptical sensor having optimized surface profileIMATION CORP·Filed 1998·Granted Nov 16, 1999·132 cites·41 claims
- 3293US7515372B2Compensating the effects of static head-media spacing variations and nonlinear transition shift in heat assisted magnetic recordingSEAGATE TECHNOLOGY LLC·Filed 2006·Granted Apr 7, 2009·15 cites·10 claims
- 3393US6653152B2Sensor disk having radial grooves and optical assaying method using sameIMATION CORP·Filed 2001·Granted Nov 25, 2003·44 cites·6 claims
- 3492US10753864B2Gas analysis systemGEN ELECTRIC·Filed 2018·Granted Aug 25, 2020·20 cites·19 claims
- 3592US8773959B2Near field transducer with shaped energy radiating endSEAGATE TECHNOLOGY LLC·Filed 2013·Granted Jul 8, 2014·16 cites·22 claims
- 3692US7796487B2Optical system for data storage devicesSEAGATE TECHNOLOGY LLC·Filed 2005·Granted Sep 14, 2010·14 cites·18 claims
- 3792US7596072B2Optical recording using a waveguide structure and a phase change mediumSEAGATE TECHNOLOGY LLC·Filed 2004·Granted Sep 29, 2009·33 cites·12 claims
- 3892US6944101B2Recording pole for delivering coincident heat and magnetic fieldSEAGATE TECHNOLOGY LLC·Filed 2003·Granted Sep 13, 2005·36 cites·27 claims
- 3992US6100991ANear normal incidence optical assaying method and system having wavelength and angle sensitivityIMATION CORP·Filed 1999·Granted Aug 8, 2000·126 cites·31 claims
- 4091US10816458B2Gas analysis systemGEN ELECTRIC·Filed 2018·Granted Oct 27, 2020·18 cites·20 claims
- 4191US8149652B2Compensating the effects of static head-media spacing variations and nonlinear transition shift in heat assisted magnetic recordingERDEN MEHMET FATIH·Filed 2009·Granted Apr 3, 2012·12 cites·10 claims
- 4291US7804656B2Light delivery technique for heat assisted magnetic recording headSEAGATE TECHNOLOGY LLC·Filed 2008·Granted Sep 28, 2010·10 cites·20 claims
- 4391US7444054B2Apparatus for focusing plasmon wavesSEAGATE TECHNOLOGY LLC·Filed 2006·Granted Oct 28, 2008·8 cites·10 claims
- 4491US7155732B2Heat assisted magnetic recording head and methodSEAGATE TECHNOLOGY LLC·Filed 2003·Granted Dec 26, 2006·36 cites·20 claims
- 4591US6320991B1Optical sensor having dielectric film stackIMATION CORP·Filed 1998·Granted Nov 20, 2001·89 cites·26 claims
- 4690US8339905B2Alignment features for heat assisted magnetic recording transducersRAUSCH TIM·Filed 2005·Granted Dec 25, 2012·18 cites·18 claims
- 4790US7830775B2Writeable optical recording of multilevel oriented nano-structure discsSEAGATE TECHNOLOGY LLC·Filed 2006·Granted Nov 9, 2010·9 cites·24 claims
- 4889US7272102B2Ridge waveguide with recessSEAGATE TECHNOLOGY LLC·Filed 2003·Granted Sep 18, 2007·30 cites·22 claims
- 4989US5955378ANear normal incidence optical assaying method and system having wavelength and angle sensitivityFiled 1997·Granted Sep 21, 1999·101 cites·10 claims
- 5088US7480214B2Efficient waveguide coupler for data recording transducerSEAGATE TECHNOLOGY LLC·Filed 2003·Granted Jan 20, 2009·23 cites·19 claims
Showing the top 50 of 103 patent records by PatentIndex Score.
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