DH

David H. F. Harper

IBM: 58 patents #1,384 of 70,183Top 2%
MI Miniscribe: 1 patents #10 of 36Top 30%
📍 Vail, AZ: #6 of 174 inventorsTop 4%
🗺 Arizona: #322 of 32,909 inventorsTop 1%
Overall (All Time): #39,961 of 4,157,543Top 1%
59
Patents All Time

Issued Patents All Time

Showing 51–59 of 59 patents

Patent #TitleCo-InventorsDate
7649710 Moving magnet actuation of tape head Nhan X. Bui, Reed A. Hancock, Wayne Isami Imaino 2010-01-19
7538980 Actuator assembly Wayne Isami Imaino 2009-05-26
7444894 Linear actuator with wear-resistant ceramic bushing Luis Hector Palacios Borja 2008-11-04
7414812 Actuator assembly 2008-08-19
7092196 Characteristic measurement of an actuation drive coil and associated damping mechanism James Howard Eaton, Darrell G. Follett, Wayne Isami Imaino, Leif Stefan Kirschenbaum, Andrew McKee +1 more 2006-08-15
7061712 Mono pole piece for a two stage tape drive actuator Wayne Isami Imaino 2006-06-13
6934108 Servo pattern based tape tension control for tape drives Mark Allan Taylor 2005-08-23
6639760 Compliant worm gear and worm gear bracket William M. Dyer, James Howard Eaton 2003-10-28
4924337 Disk drive servo shield William Repphun 1990-05-08