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Dive into the research topics where Gerrit Jan Koel is active.

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Featured researches published by Gerrit Jan Koel.


Archive | 1977

Thin-film magnetic head for reading and writing information

Gerrit Jan Koel; Frederik Willem Gorter; Jan Gerkema


Archive | 1978

Magnetic head having a core provided on a substrate by means of thin-film technology

Gerrit Jan Koel; Willem Frederik Druyvesteyn


Archive | 1978

Magnetic head using a magnetic field-sensitive element and method of manufacturing same

Jan Gerkema; Gerrit Jan Koel


Archive | 1978

Method of manufacturing a thin-film magnetic head with a nickel-iron pattern having inclined edges

Gerrit Jan Koel; Lambertus Postma


Archive | 1983

METHOD OF PRODUCING OPTICAL FIBRES

Cornelis Petrus Auwerda; Gerrit Jan Koel


Archive | 1984

Method of making a solid preform for drawing optical fibres

René Andreas Maria Pluijms; Der Ree Pieter Van; Gerrit Jan Koel; Jan Gerard Jacob Peelen


Archive | 1976

Method of manufacturing a magnetic head by photo-etching

Gerrit Jan Koel; Theodorus C. J. M. Bertens


Archive | 1978

Forming electrically insulating layers by sputter deposition

Gerrit Jan Koel; Lambertus Postma


Archive | 1976

Device for the magnetic recording by means of a magnetic strip domain as a recording/playback head

Frederik Ate De Jonge; Jan Willem Frederik Dorleijn; Willem Frederik Druyvesteyn; Gerrit Jan Koel


Archive | 1979

Method of reinforcing a conductive base pattern by electroplating and device obtained by means of the method

Gerrit Jan Koel; Jan Gerkema

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