Ronald Paul Stahl

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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
Focus error detection using an equal path length lateral shearing i...
- Patent number 5,446,710
- Issue date Aug 29, 1995
- International Business Machines Corporation
- Timothy S. Gardner
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk drive relative position sensor
- Patent number 5,235,574
- Issue date Aug 10, 1993
- International Business Machines Corporation
- Henry E. Aviles
- G11 - INFORMATION STORAGE