MH

Mark David Hagen

TI Texas Instruments: 15 patents #889 of 12,488Top 8%
WT Western Digital Technologies: 9 patents #645 of 3,180Top 25%
IBM: 6 patents #16,453 of 70,183Top 25%
📍 Rochester, MN: #178 of 3,042 inventorsTop 6%
🗺 Minnesota: #1,863 of 52,454 inventorsTop 4%
Overall (All Time): #119,486 of 4,157,543Top 3%
31
Patents All Time

Issued Patents All Time

Showing 1–25 of 31 patents

Patent #TitleCo-InventorsDate
8760081 Systems and methods for backlight driving Eric Gregory Oettinger 2014-06-24
8477879 System and method for bi-phase modulation decoding Eric Gregory Oettinger 2013-07-02
8278898 Auto-tuning power supply Ali Davoudi 2012-10-02
7919958 Methods and apparatus for controlling a digital power supply Eric Gregory Oettinger 2011-04-05
7903439 Methods and apparatus to control a digital power supply Eric Gregory Oettinger 2011-03-08
7787263 Methods and apparatus to control a digital power supply Eric Gregory Oettinger 2010-08-31
7688608 Reference voltage change in a digital power supply Eric Gregory Oettinger 2010-03-30
7389052 Calibration method for station orientation Eric Gregory Oettinger, Mark Heminger 2008-06-17
7352691 Double difference phase detection Mark Heminger 2008-04-01
7215888 System and method of implementing variable loop gain in an optical wireless link based on distance Eric Gregory Oettinger, Mark Heminger 2007-05-08
7205749 Power line communication using power factor correction circuits Robert Jansen 2007-04-17
7126776 Disk drive having a sector clock that is synchronized to the angular speed of the spindle motor Robert W. Warren 2006-10-24
7088070 Resonant scanning mirror driver circuit 2006-08-08
6956350 Resonant scanning mirror driver circuit 2005-10-18
6915080 Method and apparatus for aligning optical wireless links Mark Heminger, Eric Gregory Oettinger, Karl Northrup 2005-07-05
6812669 Resonant scanning mirror driver circuit 2004-11-02
6714338 MEM's mirror internal sensor linearization based on driver linearity Eric Gregory Oettinger, Mark Heminger 2004-03-30
6639748 Disk drive that discerns the polarity of a head signal from a sync mark to enhance data detection Grant S. Christiansen 2003-10-28
6603622 Disk drive employing a sync mark detector comprising a matched filter and a dual polarity correlator Grant S. Christiansen 2003-08-05
6426844 Method and apparatus for phase modulated servo positioning in a direct access storage device Todd B. Anderson 2002-07-30
6369969 Disk drive for detecting a polarity error of a magnetoresistive head by detecting a sync mark Grant S. Christiansen 2002-04-09
6369974 Disk drive with method of constructing a continuous position signal and constrained method of linearizing such position signal while maintaining continuity Saeed Asgari 2002-04-09
6249393 Disk drive having a write condition detector for suspending write operations while a transducer flying height deviates from its operating flying height Russell A. Billings, Shafa Dahandeh 2001-06-19
6219197 Method and apparatus for servo positioning in a direct access storage device with a transducer read element width greater than 1/3 and less than 1/2 width of a data cylinder Dana H. Brown, John C. Purkett 2001-04-17
6078453 Method and apparatus for optimizing the servo read channel of a hard disk drive Rich A. Dziallo 2000-06-20