JK

John Kirchberg

NP North American Philips: 2 patents #168 of 645Top 30%
📍 Burnsville, MN: #271 of 632 inventorsTop 45%
🗺 Minnesota: #23,881 of 52,454 inventorsTop 50%
Overall (All Time): #2,255,415 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5995336 Composite structure with single domain magnetic element, and thin film magnetic head incorporating same Paul F. Michalek, John A. Rice 1999-11-30
5269895 Method of making composite structure with single domain magnetic element Paul F. Michalek, John A. Rice 1993-12-14