Inventor · disambiguated record
Tjerk G. Spanjer
Also filed as: SPANJER TJERK G · SPANJER TJERK GERRIT
21 granted patents·87 citations·filing 1988–2023
93Inventor score
Technology areasH01J
Top patents by PatentIndex Score
21 records- 0181US12176179B2Method, device and system for reducing off-axial aberration in electron microscopyFEI CO·Filed 2023·Granted Dec 24, 2024·0 cites·11 claims
- 0281US11587759B2Method, device and system for reducing off-axial aberration in electron microscopyFEI CO·Filed 2018·Granted Feb 21, 2023·2 cites·13 claims
- 0379US11817290B2Method, device and system for reducing off-axial aberration in electron microscopyFEI CO·Filed 2023·Granted Nov 14, 2023·0 cites·9 claims
- 0466US4857797ACathode ray tube having a tubular electron gun structurePHILIPS CORP·Filed 1988·Granted Aug 15, 1989·13 cites·11 claims
- 0561US4827184AElectron beam device and a focusing lens thereforPHILIPS CORP·Filed 1988·Granted May 2, 1989·11 cites·12 claims
- 0651US6608436B1Color display device having quadrupole convergence coilsKONINKL PHILIPS ELECTRONICS NV·Filed 2000·Granted Aug 19, 2003·2 cites·11 claims
- 0751US4945283ACathode ray tube having a tubular focus structurePHILIPS CORP·Filed 1989·Granted Jul 31, 1990·8 cites·12 claims
- 0850US6630803B1Color display device having quadrupole convergence coilsKONINKL PHILIPS ELECTRONICS NV·Filed 2000·Granted Oct 7, 2003·2 cites·5 claims
- 0949US5015925APicture display devicePHILIPS CORP·Filed 1990·Granted May 14, 1991·9 cites·5 claims
- 1046US5818157AColor cathode ray tube having an in-line electron gun with asymmetrical aperturesPHILIPS CORP·Filed 1997·Granted Oct 6, 1998·10 cites·6 claims
- 1146US5726539AColor cathode ray tube display systemPHILIPS CORP·Filed 1996·Granted Mar 10, 1998·7 cites·6 claims
- 1246US4961022ADisplay tube including a helical focusing lens with a non-rotationally symmetrical lens elementPHILIPS CORP·Filed 1989·Granted Oct 2, 1990·6 cites·8 claims
- 1344US4988929APicture display devicePHILIPS CORP·Filed 1990·Granted Jan 29, 1991·7 cites·5 claims
- 1437US6411027B1Color display device having quadrupole convergence coilsPHILIPS CORP·Filed 1999·Granted Jun 25, 2002·3 cites·4 claims
- 1535US6833661B1Deflection unit for a cathode ray tubeKONINKL PHILIPS ELECTRONICS NV·Filed 2000·Granted Dec 21, 2004·0 cites·20 claims
- 1633US5633567ADisplay device and cathode ray tubePHILIPS CORP·Filed 1995·Granted May 27, 1997·2 cites·15 claims
- 1732US6376981B1Color display device having quadrupole convergence coilsPHILIPS CORP·Filed 1999·Granted Apr 23, 2002·1 cites·10 claims
- 1832US6140664ACathode ray tube comprising a semiconductor cathodePHILIPS CORP·Filed 1995·Granted Oct 31, 2000·1 cites·12 claims
- 1929US5256934ADisplay tube comprising an electron gun with a resistive focusing lensPHILIPS CORP·Filed 1992·Granted Oct 26, 1993·2 cites·27 claims
- 2026US5834887AColor cathode ray tube comprising an in-line electron gun with extended outer aperturesPHILIPS CORP·Filed 1996·Granted Nov 10, 1998·1 cites·9 claims
- 2124US5751099ADisplay device and colour cathode ray tube for use in a display devicePHILIPS CORP·Filed 1996·Granted May 12, 1998·0 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →