Inventor · disambiguated record
Jan Gerkema
Also filed as: GERKEMA JAN · GERKEMA JAN T · KOEL GERRIT J
14 granted patents·331 citations·filing 1975–1985
94Inventor score
Files withPHILIPS CORP14
Top patents by PatentIndex Score
14 records- 0194US4210371ARotary-anode X-ray tubePHILIPS CORP·Filed 1978·Granted Jul 1, 1980·68 cites·6 claims
- 0287US4641332AX-ray tube comprising anode disc rotatably supported by bearing having push-pull bearing on an axial facePHILIPS CORP·Filed 1984·Granted Feb 3, 1987·29 cites·10 claims
- 0384US4614445AMetal-lubricated helical-groove bearing comprising an anti-wetting layerPHILIPS CORP·Filed 1984·Granted Sep 30, 1986·28 cites·15 claims
- 0484US4300177AThin-film magnetic head for reading and writing informationPHILIPS CORP·Filed 1979·Granted Nov 10, 1981·24 cites·4 claims
- 0581US4150408AThin-film magnetic head for reading and writing informationPHILIPS CORP·Filed 1977·Granted Apr 17, 1979·22 cites·2 claims
- 0681US4085430AThin film magnetic head with a gap formed between a loop shaped core part and a bridging core partPHILIPS CORP·Filed 1976·Granted Apr 18, 1978·22 cites·9 claims
- 0779US4100583AThin-film magnetic head for reading and writing informationPHILIPS CORP·Filed 1976·Granted Jul 11, 1978·20 cites·2 claims
- 0874US4644577AX-ray tube comprising an anode disc rotatably journalled on a helical-groove bearingPHILIPS CORP·Filed 1985·Granted Feb 17, 1987·21 cites·9 claims
- 0973US4562587AX-Ray tube having a rotary anodePHILIPS CORP·Filed 1983·Granted Dec 31, 1985·18 cites·4 claims
- 1073US4151574AMagnetic head using a magnetic field-sensitive element and method of manufacturing samePHILIPS CORP·Filed 1978·Granted Apr 24, 1979·15 cites·2 claims
- 1172US4357555ARotary anode X-ray tubePHILIPS CORP·Filed 1980·Granted Nov 2, 1982·24 cites·10 claims
- 1267US3968565AMethod of manufacturing a device comprising a semiconductor bodyPHILIPS CORP·Filed 1975·Granted Jul 13, 1976·27 cites·5 claims
- 1360US4490264ADevice incorporating a bearingPHILIPS CORP·Filed 1982·Granted Dec 25, 1984·9 cites·2 claims
- 1440US4175010AMethod of reinforcing a conductive base pattern by electroplating and device obtained by means of the methodPHILIPS CORP·Filed 1978·Granted Nov 20, 1979·4 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →