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| Number | Title | Issue Date |
| 7140655 | Precision soft-touch gripping mechanism for flat objects A precision soft-touch gripping mechanism has a mounting plate attached to a robot arm. The plate supports a stepper motor. The output shaft of the stepper motor is connected through a spring to an elongated finger that slides in a central longitudinal slot of the p... | 11/28/2006 |
| 6900451 | Mapping sensor system for detecting positions of flat objects The mapping sensor system of the invention is intended for use with a mechanical arm of an industrial robot which loads and unloads flat circular objects, such as semiconductor wafers, into and from wafer cassettes on operations of processing the semiconductor wafer... | 05/31/2005 |
