Delbert Allen Hansen

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Tucson, AZ, US

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Patents Grantslast 30 patents

Information Patent Grant
Calibrating an optical detector to minimize noise from undesired pe...
- Patent number 5,912,874
- Issue date Jun 15, 1999
- International Business Machines Corporation
- Timothy Stuart Gardner
- G11 - INFORMATION STORAGE
Information Patent Grant
Calibrating an optical detector to minimize noise from undesired pe...
- Patent number 5,777,962
- Issue date Jul 7, 1998
- International Business Machines Corporation
- Timothy Stuart Gardner
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk with marks used for calibrating an optical detector to...
- Patent number 5,627,818
- Issue date May 6, 1997
- International Business Machines Corporation
- Timothy S. Gardner
- G11 - INFORMATION STORAGE
Information Patent Grant
Coarse position sensor, and method for locating same, in an optical...
- Patent number 5,553,054
- Issue date Sep 3, 1996
- International Business Machines Corporation
- Timothy S. Gardner
- G11 - INFORMATION STORAGE
Information Patent Grant
Focus and tracking servo decoupling system
- Patent number 5,367,513
- Issue date Nov 22, 1994
- International Business Machines Corporation
- Keith A. Bates
- G11 - INFORMATION STORAGE