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 1–25 of 59 patents

Patent #TitleCo-InventorsDate
12266387 Reworkable tape track following actuator Mark A. Lantz, Walter Haeberle, Simeon Furrer 2025-04-01
11922982 Tape drive reel including damping to reduce track following errors 2024-03-05
11842829 Flexible electrical cable with four copper layers Sassan K. Shahidi, Hoodin Hamidi, Larry LeeRoy Tretter 2023-12-12
11837263 Tape erase element included in a tape erase device to erase a tape medium Hugo E. Rothuizen, Mark A. Lantz, Edwin R. Childers 2023-12-05
11621019 Portable tape storage on a mobile platform Gregory J. Goodman 2023-04-04
11335377 Blocking mechanism for a storage cartridge to prevent insertion into a storage drive Edwin R. Childers 2022-05-17
11056139 Semi-flexible structure for micro-positioning a write/read head 2021-07-06
10957362 Non-interfering micro-positioning system utilizing piezoelectric elements 2021-03-23
10854236 Dynamic tape guide bearing tilt mechanism Nhan X. Bui 2020-12-01
10832724 Damping lateral tape motion disturbances Peter Reininger 2020-11-10
10789980 Attenuating reaction forces caused by externally supported stators in brushless DC motors Kevin B. Judd, Armando Jesus Argumedo 2020-09-29
10783919 Attenuating reaction forces caused by internally supported stators in brushless DC motors Kevin B. Judd, Armando Jesus Argumedo 2020-09-22
10679662 Tape drive bearing temperature control Nhan X. Bui, Kevin B. Judd, Randy C. Inch, Mark A. Lantz 2020-06-09
10614846 Measuring servo reader span on a magnetic recording head 2020-04-07
10580443 Planar mono coil for two stage head actuator 2020-03-03
10553245 Damping lateral tape motion disturbances Peter Reininger 2020-02-04
10515663 Tape drive bearing temperature control Nhan X. Bui, Kevin B. Judd, Randy C. Inch, Mark A. Lantz 2019-12-24
10424333 Attenuating reaction forces caused by externally supported stators in brushless DC motors Kevin B. Judd, Armando Jesus Argumedo 2019-09-24
10424332 Attenuating reaction forces caused by internally supported stators in brushless DC motors Kevin B. Judd, Armando Jesus Argumedo 2019-09-24
10410670 Tape drive temperature control for media dimensional stability Nhan X. Bui, Kevin B. Judd, Randy C. Inch, Mark A. Lantz 2019-09-10
10395682 Achieving fine motion between modules in a magnetic head 2019-08-27
10395687 Tape drive bearing temperature control Nhan X. Bui, Kevin B. Judd, Randy C. Inch, Mark A. Lantz 2019-08-27
10374475 Reduced reel motor disturbances in a tape drive system Hugo E. Rothuizen 2019-08-06
10332554 Tape drive temperature control for media dimensional stability Nhan X. Bui, Kevin B. Judd, Randy C. Inch, Mark A. Lantz 2019-06-25
10236023 Planar mono coil for two stage head actuator 2019-03-19