Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
HH

Hai T. Ho — 17 Patents

STSeagate Technology: 10 patents #565 of 4,626Top 15%
MAMaxtor: 4 patents #96 of 656Top 15%
Westminster, CO: #49 of 944 inventorsTop 6%
Colorado: #2,427 of 40,980 inventorsTop 6%
Overall (All Time): #279,625 of 4,157,543Top 7%
17 Patents All Time

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #TitleCo-InventorsDate
6937428 Reducing actuator arm oscillation during settle mode in a disc drive servo system Justin Won, Fadi Abou-Jaoude, Gregory Campbell 2005-08-30
6892213 Digital sine/cosine wave generator Tony Huang 2005-05-10
6867943 Efficient feedforward compensation for repeatable runout in a disc drive Brent Jay Harmer, Jianbo He, Khalil Dizaji, Reed D. Hanson 2005-03-15
6819521 Repeated runout position error compensation in a disc drive servo system Justin Won, Mirmehdi L. Abrishamchian, Gregory Campbell 2004-11-16
6674601 Method and apparatus for electronically shifting mechanical resonance of an actuator system of a disc drive 2004-01-06
6654197 Disc drive dynamics identification using synchronous excitation signal 2003-11-25
6636376 Disc drive resonance disturbance cancellation filter 2003-10-21
6628472 Method and apparatus for feedforward cancellation using a phase lock loop 2003-09-30
6618219 Method and apparatus for feedforward cancellation using a peak detector 2003-09-09
6541931 Dual stage positioning system using a shared voltage source Margot Ann LaPanse, Charles Leon McHenry, Jianbo He 2003-04-01
6292324 Disk drive with compensation values calculated using a non-causal impulse response Toan Q. Doan, Bruce A. Liikanen 2001-09-18
6115203 Efficient drive-level estimation of written-in servo position error Toan Q. Doan, Bruce A. Liikanen 2000-09-05
6018430 Disk drive with multiple disk surfaces having improved allocation of servo sectors Toan Q. Doan 2000-01-25
5936790 Servo sector allocation for high sampling rate Toan Q. Doan 1999-08-10
5682276 Data cartridge library system architecture Bennett Charles Hinnen, Eric A. Rinard, Gregory S. Rinard, Brian A. Ruff, Nathan Christopher Thompson +1 more 1997-10-28
5621586 Retaining slot for data cartridge library system Bennett Charles Hinnen, Eric A. Rinard, Gregory S. Rinard, Brian A. Ruff, Nathan Christopher Thompson +1 more 1997-04-15
5555143 Data cartridge library system architecture Bennett Charles Hinnen, Eric A. Rinard, Gregory S. Rinard, Brian A. Ruff, Nathan Christopher Thompson +1 more 1996-09-10