Inventor · disambiguated record
Martinus P. M. Bierhoff
Also filed as: BIERHOFF MARTINUS P · BIERHOFF MARTINUS P M · BIERHOFF MARTINUS PETRUS M · BIERHOFF MARTINUS PETRUS MARIA
34 granted patents·404 citations·filing 1977–2015
97Inventor score
Files withPHILIPS CORP27FEI CO3BIERHOFF MARTINUS PETRUS MARIA2BUIJSSE BART1KONINKL PHILIPS ELECTRONICS NV1
Top patents by PatentIndex Score
34 records- 0192US4135206AObjective mount for video disc playerPHILIPS CORP·Filed 1977·Granted Jan 16, 1979·39 cites·7 claims
- 0291US8309921B2Compact scanning electron microscopeBIERHOFF MARTINUS PETRUS MARIA·Filed 2011·Granted Nov 13, 2012·17 cites·7 claims
- 0391US4193091AOptical videodisc read unit with tracking and focussing wobblersPHILIPS CORP·Filed 1978·Granted Mar 11, 1980·39 cites·9 claims
- 0486US6852982B1Magnetic lensFEI CO·Filed 2003·Granted Feb 8, 2005·23 cites·22 claims
- 0584US8633456B2Method for centering an optical element in a TEM comprising a contrast enhancing elementBUIJSSE BART·Filed 2012·Granted Jan 21, 2014·6 cites·20 claims
- 0683US5103439ABeam focus control system for optical record carrier scanning apparatusPHILIPS CORP·Filed 1989·Granted Apr 7, 1992·30 cites·9 claims
- 0780US9865427B2User interface for an electron microscopeFEI CO·Filed 2015·Granted Jan 9, 2018·2 cites·16 claims
- 0879US4357696AOptical scanning apparatus with focussing systemPHILIPS CORP·Filed 1979·Granted Nov 2, 1982·20 cites·9 claims
- 0978US4813031AApparatus for reproducing information from an optically readable record carrierPHILIPS CORP·Filed 1984·Granted Mar 14, 1989·20 cites·9 claims
- 1076US4628497AApparatus for reproducing information from an optically readable record carrierPHILIPS CORP·Filed 1984·Granted Dec 9, 1986·18 cites·8 claims
- 1174US5036506ARecord carrier scanning apparatus with feedback control system for controlling scanning point position and velocityPHILIPS CORP·Filed 1989·Granted Jul 30, 1991·19 cites·8 claims
- 1270US9025018B2User interface for an electron microscopeBIERHOFF MARTINUS PETRUS MARIA·Filed 2007·Granted May 5, 2015·2 cites·21 claims
- 1370US4471477AApparatus for optically scanning a disc-shaped record carrierPHILIPS CORP·Filed 1982·Granted Sep 11, 1984·15 cites·8 claims
- 1469US4482989AApparatus for optically scanning a disc-shaped record carrierPHILIPS CORP·Filed 1982·Granted Nov 13, 1984·14 cites·13 claims
- 1567US4583209AApparatus for reproducing information from an optically readable record carrierPHILIPS CORP·Filed 1984·Granted Apr 15, 1986·13 cites·6 claims
- 1663US4663749AApparatus for reproducing information from an optically readable record carrierPHILIPS CORP·Filed 1985·Granted May 5, 1987·14 cites·5 claims
- 1761US4712091ADigital/analog converter having a switchable reference currentPHILIPS CORP·Filed 1985·Granted Dec 8, 1987·18 cites·9 claims
- 1859US4740938AApparatus for rapid reproduction of information from a record carrierPHILIPS CORP·Filed 1985·Granted Apr 26, 1988·14 cites·9 claims
- 1958US9762863B2Method of sampling a sample and displaying obtained informationFEI CO·Filed 2013·Granted Sep 12, 2017·1 cites·20 claims
- 2054US4236173AApparatus for reading a disc-shaped record carrier having a PAL color television signalPHILIPS CORP·Filed 1979·Granted Nov 25, 1980·10 cites·3 claims
- 2152US4568887AApparatus for synchronizing the output frequency of a clock oscillator to a data signalPHILIPS CORP·Filed 1984·Granted Feb 4, 1986·10 cites·7 claims
- 2251US4354103AOptical focusing device with two controlsPHILIPS CORP·Filed 1980·Granted Oct 12, 1982·7 cites·4 claims
- 2346US6512732B1Device for optically scanning information tracks on a plane using two subbeamsKONINKL PHILIPS ELECTRONICS NV·Filed 1996·Granted Jan 28, 2003·7 cites·9 claims
- 2446US4637006AApparatus for producing digital information from a transmission mediumPHILIPS CORP·Filed 1984·Granted Jan 13, 1987·5 cites·8 claims
- 2539US5097307ARadiation sensitive semiconductor device for optical reading or writing unitPHILIPS CORP·Filed 1990·Granted Mar 17, 1992·7 cites·15 claims
- 2638US4697258AApparatus for enabling an autotrack circuit of an optical disc reading apparatus during the positioning of a read beamPHILIPS CORP·Filed 1985·Granted Sep 29, 1987·5 cites·7 claims
- 2736US5140282ACurrent amplifier arrangementPHILIPS CORP·Filed 1991·Granted Aug 18, 1992·5 cites·14 claims
- 2836US5105249ARadiation-sensitive semiconductor device having a transistorPHILIPS CORP·Filed 1991·Granted Apr 14, 1992·6 cites·9 claims
- 2936US4999828ARecord carrier decoder for multi-track data patterns including error protection dataPHILIPS CORP·Filed 1989·Granted Mar 12, 1991·4 cites·21 claims
- 3033US5350916AOptoelectronic device and method of manufacturing same with an electrically insulating medium having a strip-shaped flexible foilPHILIPS CORP·Filed 1993·Granted Sep 27, 1994·7 cites·13 claims
- 3132US5708647ALaser power supply circuit as well as option recording and/or reading device comprising such a laser power supply circuitPHILIPS CORP·Filed 1995·Granted Jan 13, 1998·1 cites·10 claims
- 3230US4689501ASignal level detector for compact disc playerPHILIPS CORP·Filed 1986·Granted Aug 25, 1987·3 cites·3 claims
- 3329US5099126APhotosensitive semiconductor device having radiation sensitive diodes and photocurrent amplificationPHILIPS CORP·Filed 1990·Granted Mar 24, 1992·0 cites·5 claims
- 3428US4683561ASmooth lock-in of servo control when switched onPHILIPS CORP·Filed 1985·Granted Jul 28, 1987·3 cites·5 claims
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