Seppo Yrjola

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Oulunsal, FI

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Patents Grantslast 30 patents

Information Patent Grant
Antenna filtering arrangement for a dual mode radio communication d...
- Patent number 6,185,434
- Issue date Feb 6, 2001
- LK-Products OY
- Panu Hagström
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Integrated filter construction
- Patent number 6,023,608
- Issue date Feb 8, 2000
- LK-Products Oy
- Seppo Yrjola
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Transmission line resonator filter with variable slot coupling and...
- Patent number 5,731,749
- Issue date Mar 24, 1998
- LK-Products Oy
- Seppo Yrjola
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Arrangement for separating transmission and reception
- Patent number 5,521,561
- Issue date May 28, 1996
- LK-Products Oy
- Seppo Yrjola
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Filter with strip lines
- Patent number 5,432,489
- Issue date Jul 11, 1995
- LK-Products Oy
- Seppo Yrjola
- H01 - BASIC ELECTRIC ELEMENTS