Esa Kemppinen

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Helsinki, FI

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Patents Grantslast 30 patents

Information Patent Grant
Waveguide to stripline transition with via forming an impedance mat...
- Patent number 6,958,662
- Issue date Oct 25, 2005
- Nokia Corporation
- Olli Salmela
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for creating waveguides in multilayer ceramic structures and...
- Patent number 6,909,345
- Issue date Jun 21, 2005
- Nokia Corporation
- Olli Salmela
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Means for handling high-frequency energy
- Patent number 6,778,037
- Issue date Aug 17, 2004
- Nokia Corporation
- Olli Salmela
- H01 - BASIC ELECTRIC ELEMENTS