Wolf D. Ruh

Person

Sommerhofenstr, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Producing viaholes in plastic sheets and application of the method
- Patent number 5,022,956
- Issue date Jun 11, 1991
- International Business Machines Corporation
- Werner Cziep
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Producing viaholes in plastic sheets and application of the method
- Patent number 4,834,835
- Issue date May 30, 1989
- International Business Machines Corp.
- Werner Cziep
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of dry copper etching and its implementation
- Patent number 4,557,796
- Issue date Dec 10, 1985
- International Business Machines Corporation
- Frank Druschke
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method of measuring the thickness of the removed layer in subtracti...
- Patent number 4,512,847
- Issue date Apr 23, 1985
- International Business Machines Corporation
- Arwed Brunsch
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of producing a metallic thin film magnetic disk
- Patent number 4,426,265
- Issue date Jan 17, 1984
- International Business Machines Corporation
- Arwed Brunsch
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for measuring magnetostriction constant
- Patent number 4,310,798
- Issue date Jan 12, 1982
- International Business Machines Corporation
- Arwed Brunsch
- G01 - MEASURING TESTING

Wolf D. Ruh

Person

Patents Grantslast 30 patents

Producing viaholes in plastic sheets and application of the method

Producing viaholes in plastic sheets and application of the method

Method of dry copper etching and its implementation

Method of measuring the thickness of the removed layer in subtracti...

Method of producing a metallic thin film magnetic disk

Apparatus for measuring magnetostriction constant