Seppo Ojantakanen

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Paavola, FI

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Patents Grantslast 30 patents

Information Patent Grant
Combined structure of a helical antenna and a dielectric plate
- Patent number 5,990,848
- Issue date Nov 23, 1999
- LK-Products Oy
- Petteri Annamaa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Double-action antenna
- Patent number 5,734,351
- Issue date Mar 31, 1998
- LK-Products Oy
- Seppo Ojantakanen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Helical resonator filter including short circuit stub tuning
- Patent number 5,585,771
- Issue date Dec 17, 1996
- LK-Products Oy
- Kimmo Ervasti
- H01 - BASIC ELECTRIC ELEMENTS