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特許権…現在18

米国特許番号	特許内容
7,002,821	Zero drift analog memory cell, array and method of operation
6,730,863	Touchpad having increased noise rejection, decreased moisture sensitivity, and improved tracking
6,680,731	Flexible touchpad sensor grid for conforming to arcuate surfaces
6,639,586	Efficient entry of characters from a large character set into a portable information appliance
6,473,069	Apparatus and method for tactile feedback from input device
6,222,528	Method and apparatus for data input
5,914,708	Computer input stylus method and apparatus
5,861,875	Methods and apparatus for data input
5,767,457	Apparatus and method for audible feedback from input device
5,757,368	System and method for extending the drag function of a computer pointing device
5,565,658	Capacitance-based proximity with interference rejection apparatus and methods
5,349,303	Electrical charge transfer apparatus
5,340,108	Apparatus for projecting and moving a spot of light in a scene projected on a screen and for controlling operation of a stepper motor used therewith
5,305,017	Methods and apparatus for data input (parent application 16 August 1989)
5,277,426	Sports simulation system
4,975,830	Computer communication system having supplemental formats
4,563,739	Inventory and business management system which accounts for the contents of full and partially filled product containers
4,437,672	Golf Game simulating apparatus