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| Number | Title | Issue Date |
| 7360455 | Force detector and acceleration detector and method of manufacturing the same An electrode layer is formed on the upper surface of a first substrate, and a processing for partially removing the substrate is carried out in order to allow the substrate to have flexibility. To the lower surface of the first substrate, a second substrate is conne... | 04/22/2008 |
| 7192370 | String tensioning force controlling apparatus for a racket stringer A string tensioning force controlling apparatus for a racket stringer includes a string pulling mechanism having a support housing, a string pulling head movably supported by the support housing for engaging a string, and a drive arrangement drivingly coupled to the... | 03/20/2007 |
| 7123028 | Force detector The invention provides a force detector in which power consumption is suppressed. Four electrodes E11 through E14 are formed on a substrate, and an elastic deformable body formed of a rubber film is disposed thereon. A conductive coating is applied on ... | 10/17/2006 |
| 7119550 | Capacitance difference detecting circuit and MEMS sensor Oscillators have capacitors, respectively, whose capacitances change according to an external force and generate first oscillating signals according to the capacitances. Each of the capacitors is disposed, for example, between a substrate and a mass body that is mov... | 10/10/2006 |
| 6859048 | Force detector The invention provides a force detector in which power consumption is suppressed. Four electrodes E11 through E14 are formed on a substrate, and an elastic deformable body formed of a rubber film is disposed thereon. A conductive coating is applied on ... | 02/22/2005 |
| 6593729 | Position measuring device for detecting displacements with at least three degrees of freedom The invention comprises a fixed platform (1) and a displaceable platform (2) that are coupled by six tension springs (3) and an elastic spacer member (6). The spacer member forms with each platform, for instance, a ball-and-socket joint, such that the pla... | 07/15/2003 |
| 6119530 | Force sensing device A force sensing device for use in analyzing the movement of a person or animal. The device includes a base and a platform supported on the base by ball casters. The platform includes first and second plates with pneumatic tubing positioned between the pla... | 09/19/2000 |
| 5805137 | Touch sensitive input control device A family of controllers incorporate multiple force/touch sensitive input elements to provide intuitive input in up to six degrees of freedom, including position and rotation, in either a Cartesian, cylindrical or spherical coordinate system. Six dimension... | 09/08/1998 |
| 5646346 | Multi-axial angular velocity sensor An angular velocity sensor has a flexible substrate and an opposed, fixed substrate supported at their peripheries by a sensor casing. An oscillator is fixed on the lower surface of the flexible substrate. Five lower electrodes are formed on the upper sur... | 07/08/1997 |
| 5553500 | Triaxial normal and shear force sensor A triaxial force sensor using a hemispherical target embedded in a compliant layer such as an elastomer and having a plurality of ultrasonic transducers disposed in a plane at equal intervals about the target and vertically and laterally offset from the t... | 09/10/1996 |
| 5481926 | Tension tester of tennis racquet string A tensiometer for measuring the tension in the individual strings of a tennis racquet featuring a pair of rods which stradle the string to be tested, the rods extending from a base, a lever disk rotably mounted on the base and coupled by a spring to the b... | 01/09/1996 |
| 5406827 | Pitch/tension device The pitch/tension device is a device to determine the tension, in pounds, in a taut string or strings, such as a tennis racket. There are two methods of determining the tension. In the first method, the pitch/tension device is first adjusted for racket type or... | 04/18/1995 |
| 4864875 | Digital electronic calibrator for tennis racket stringing machines A device for checking the calibration of tennis racket stringing machines, having an input rod to which a non-stretch cable is attached for attaching to the tension head of a stringing machine, a force lever system attached to the input rod for receiving ... | 09/12/1989 |
| 3964291 | Tennis racquet stringing calibrator A calibration device is disclosed and claimed herein for determining the accuracy of a tennis racquet stringing machine. A cross member is securable in the machine in similar fashion to a racquet being secured for stringing therein. The cross member has a... | 06/22/1976 |
