Inventor · disambiguated record
James A. Barnard
Also filed as: BARNARD JAMES A
24 granted patents·3 pending applications·484 citations·filing 1975–2001
96Inventor score
Top patents by PatentIndex Score
27 records- 0195US4819218AQuasi-constant linear-velocity disk having corresponding radii of adjacent annular zones related by a rational number for distributing prerecorded indicia to form a coherent write clock signalEASTMAN KODAK CO·Filed 1986·Granted Apr 4, 1989·67 cites·5 claims
- 0292US5140489ADisk cartridge adapted for use with different disk drivesEASTMAN KODAK CO·Filed 1989·Granted Aug 18, 1992·52 cites·8 claims
- 0391US6212158B1Hybrid optical disc constructionEASTMAN KODAK CO·Filed 1999·Granted Apr 3, 2001·70 cites·12 claims
- 0487US7057993B2Copy protection using multiple security levels on a programmable CD-ROMEASTMAN KODAK CO·Filed 2001·Granted Jun 6, 2006·29 cites·19 claims
- 0587US6480462B2Hybrid optical disc constructionEASTMAN KODAK CO·Filed 2000·Granted Nov 12, 2002·24 cites·3 claims
- 0681US5152597AMagneto-optic readout using a polarization-preserving optical fiberEASTMAN KODAK CO·Filed 1990·Granted Oct 6, 1992·33 cites·4 claims
- 0773US5561655AApparatus and method for differential tracking in a magneto-optic data storage system using mark edge detectionEASTMAN KODAK CO·Filed 1994·Granted Oct 1, 1996·21 cites·20 claims
- 0872US6126191AAir bag module assemblyGEN MOTORS CORP·Filed 1998·Granted Oct 3, 2000·40 cites·11 claims
- 0972US4228573AMethod for assembling heat exchangersGEN MOTORS CORP·Filed 1979·Granted Oct 21, 1980·22 cites·1 claims
- 1069US5914925ADRDW differential phase tracking method and apparatusEASTMAN KODAK CO·Filed 1998·Granted Jun 22, 1999·22 cites·2 claims
- 1168US6497988B2Phase-change recording element for write once applicationsEASTMAN KODAK CO·Filed 2001·Granted Dec 24, 2002·7 cites·11 claims
- 1266US4530082AOptical disc write/read employing passive focus maintenanceEASTMAN KODAK CO·Filed 1982·Granted Jul 16, 1985·12 cites·4 claims
- 1355US4949311ASingle laser direct read after write system (draw)EASTMAN KODAK CO·Filed 1988·Granted Aug 14, 1990·9 cites·12 claims
- 1454US5215808AOptical tape recording media with integral dust-defocusing transparent filmEASTMAN KODAK CO·Filed 1990·Granted Jun 1, 1993·9 cites·7 claims
- 1552US5872768AOptical discs with cover sheets and pressure equalization of the enclosed airEASTMAN KODAK CO·Filed 1996·Granted Feb 16, 1999·10 cites·7 claims
- 1650US5774448AAir sandwiched optical discs with closable pressure relief holesEASTMAN KODAK CO·Filed 1996·Granted Jun 30, 1998·9 cites·7 claims
- 1749US3999596ARegenerator matrix structureGEN MOTORS CORP·Filed 1975·Granted Dec 28, 1976·10 cites·2 claims
- 1847US5774447AOptical discs with cover sheets and dynamic pressure stabilization of the enclosed airEASTMAN KODAK CO·Filed 1996·Granted Jun 30, 1998·8 cites·2 claims
- 1946US5859830ADynamic tracking control in an optical recording system by diffraction-based mark formation detectionEASTMAN KODAK CO·Filed 1997·Granted Jan 12, 1999·7 cites·23 claims
- 2045US4175309AConveyorized fin accumulatorGEN MOTORS CORP·Filed 1978·Granted Nov 27, 1979·6 cites·3 claims
- 2144US4811317AClock resynchronization after a track jumpEASTMAN KODAK CO·Filed 1987·Granted Mar 7, 1989·6 cites·7 claims
- 2243US5561646AFocus/tracking actuator with moving-magnet motorsEASTMAN KODAK CO·Filed 1995·Granted Oct 1, 1996·6 cites·4 claims
- 2341US2002184115A1Catalog merchandising using hybrid optical discEASTMAN KODAK CO·Filed 2001·Application pending·0 cites
- 2435US2002141583A1Copy protection using a preformed ID and a unique ID on a programmable CD-ROMEASTMAN KODAK CO·Filed 2001·Application pending·0 cites
- 2534US5828630ADiffraction-based direct read during write using magneto-optic recording mediaEASTMAN KODAK CO·Filed 1997·Granted Oct 27, 1998·2 cites·9 claims
- 2634US2002191788A1Credit or debit copy-protected optical discEASTMAN KODAK CO·Filed 2001·Application pending·0 cites
- 2731US5598386AOptimized linear motors for focus/tracking actuators in optical disk drivesEASTMAN KODAK CO·Filed 1995·Granted Jan 28, 1997·3 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →