07679611 is referenced by 80 patents and cites 38 patents.

Haptic feedback interface devices using electroactive polymer (EAP) actuators to provide haptic sensations. A haptic feedback interface device is in communication with a host computer and includes a sensor device that detects the manipulation of the interface device by the user and an electroactive polymer actuator responsive to input signals and operative to output a force to the user caused by motion of the actuator. The output force provides a haptic sensation to the user. In an embodiment, a stylus including a body having a first end and a second end opposite from the first end, a moveable member coupled to the body and capable of being in contact with a user's hand; and an electro active polymer actuator coupled to the moveable member, wherein the electroactive polymer moves the moveable member from a first position to a second position with respect to the body upon being activated.

Title
Haptic stylus utilizing an electroactive polymer
Application Number
12/415781
Publication Number
7679611 (B2)
Application Date
March 31, 2009
Publication Date
March 16, 2010
Inventor
Bruce M Schena
Menlo Park
CA, US
Agent
Womble Carlyle Sandridge & Rice PLLC
Assignee
Immersion Corporation
CA, US
IPC
G09G 5/00
G06F 3/033
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