DC

Daniel W. Chapman

IBM: 3 patents #26,272 of 70,183Top 40%
Overall (All Time): #1,651,509 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5430590 Spindle system for a disk drive Norman G. Ainslie, David W. Albrecht, James William Berberich, Mats Engwall, Richard E. Mach +1 more 1995-07-04
5328272 Spindle system for a disk drive Norman G. Ainslie, David W. Albrecht, James William Berberich, Mats Engwall, Richard E. Mach +1 more 1994-07-12
4789914 Thin film magnetic read-write head/arm assemblies Norman G. Ainslie, Vlasta Brusic, Lubomyr T. Romankiw, Richard K. Wilmer 1988-12-06