Lambertus Postma — 14 Patents at U.S. Philips

Lambertus Postma has been granted 14 US patents while listed as an inventor at U.S. Philips. The first was granted in 1980 and the most recent in May 2001. Lambertus Postma ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Lambertus Postma in Eindhoven, NL.

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
6238731	Method of manufacturing a magnetic head	Jacobus J. M. Ruigrok, Pieter Jan Van Der Zaag, Wiepke Folkerts, Ronald M. Wolf, Johannes F. M. Cillessen	2001-05-29
6205007	Thin-film magnetic head and method of manufacturing the magnetic head	Jacobus J. M. Ruigrok, Pieter Jan Van Der Zaag, Wiepke Folkerts, Ronald M. Wolf, Johannes F. M. Cillessen	2001-03-20
6045715	Method of post-etching a mechanically treated substrate	Gijsbertus A. C. M. Spierings, Poul K. Larsen, Jan Baptist Petrus Henricus Van Der Putten, Johannes Maria Marcus Busio, Frederik Hendrik In 'T Veld	2000-04-04
6028749	Magnetic head having a multilayer structure and method of manufacturing the magnetic head	—	2000-02-22
5933298	System comprising a magnetic head, measuring device and a current device	Gerardus H. J. Somers, Jacobus J. M. Ruigrok	1999-08-03
5764453	Method of manufacturing a thin-film magnetic head, and magnetic head manufactured by means of said method	Arie J. Van Straalen, Gerardus H. J. Somers	1998-06-09
5637028	Method of polishing a surface of a noble metal	Jan Haisma, Cornelis L. Adema, Mathijs P. H. Souts	1997-06-10
5622525	Method of polishing a surface of copper or an alloy comprising mainly copper	Jan Haisma, Peter W. De Haas, Dirk Kornelis Gerhardus De Boer, Waltherus Van Den Hoogenhof	1997-04-22
5531016	Method of manufacturing a thin-film magnetic head	Henricus G. R. Maas, Jan Haisma, Jacobus J. M. Ruigrok, Gerardus H. J. Somers	1996-07-02
5483735	Method of manufacturing a thin-film magnetic head	Jan Haisma, Jacobus J. M. Ruigrok, Gerardus H. J. Somers	1996-01-16
4651249	Magnetic head having a step-shaped gap	Thijs W. Bril, Pieter Dekker, Cornelis H. M. Witmer	1987-03-17	$490,000
4425593	Magnetoresistive head	—	1984-01-10	$630,000
4239587	Method of manufacturing a thin-film magnetic head with a nickel-iron pattern having inclined edges	Gerrit J. Koel	1980-12-16	$461,000
4238277	Method of manufacturing a magnetic device	Thijs W. Bril	1980-12-09	$485,000

Lambertus Postma — 14 Patents

Issued Patents All Time

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