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Kofi A. A. Makinwa
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Eindhoven, NL
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Patents Grants
last 30 patents
Information
Patent Grant
Method of determining the pen velocity along a graphic tablet, and...
Patent number
6,271,836
Issue date
Aug 7, 2001
U.S. Philips Corporation
Kofi Makinwa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Rotary magnetic head device for a magnetic recording and reproducin...
Patent number
6,222,705
Issue date
Apr 24, 2001
U.S. Philips Corporation
Steven E. Stupp
G11 - INFORMATION STORAGE
Information
Patent Grant
Employing gray codes for pen detection
Patent number
5,952,999
Issue date
Sep 14, 1999
U.S. Philips Corporation
Kofi A. A. Makinwa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data processing system comprising a graphic tablet and a stylus and...
Patent number
5,889,237
Issue date
Mar 30, 1999
U.S. Philips Corporation
Kofi A. A. Makinwa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data processing system comprising a graphic tablet and a stylus, an...
Patent number
5,750,939
Issue date
May 12, 1998
U.S. Phillips Corporation
Kofi A.A. Makinwa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Force activated touch screen measuring deformation of the front panel
Patent number
5,541,372
Issue date
Jul 30, 1996
U.S. Philips Corporation
Theunis S. Baller
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data processing device comprising a touch screen and a force sensor
Patent number
5,510,813
Issue date
Apr 23, 1996
U.S. Philips Corporation
Kofi A. A. Makinwa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Segmented-core inductance in stylus for EM-graphical tablet
Patent number
5,461,204
Issue date
Oct 24, 1995
U.S. Philips Corporation
Kofi A. A. Makinwa
G06 - COMPUTING CALCULATING COUNTING