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| Number | Title | Issue Date |
| 8442692 | Method for performing adaptive friction compensation in an actuator accounting for variation in friction characteristics of wave gear drive accompanying change in temperature According to a method for performing adaptive friction compensation of an actuator including a wave gear drive, there is used as a friction compensation current applied to a motor drive current a static friction compensation current is when a motor shaft ... | 05/14/2013 |
| 8427094 | Method for controlling positioning of actuator comprising wave gear device A method for controlling positioning of an actuator having a wave gear device uses an exact linearization technique to compensate effects relative to positioning control of a load shaft caused by the non-linear spring characteristics of the wave gear device. A plant... | 04/23/2013 |
| 8054521 | Method for adjusting galvano scanner system In a galvano scanner system (1), a light position detection unit (30) is mounted so as to match the scanning center of the workpiece surface (7), the light position detection unit being provided with a two-dimensional light position sensor (3... | 11/08/2011 |
| 8051566 | Method for manufacturing rigid internal gear of wave gear device A method for manufacturing a rigid internal gear of a wave gear device in which an internally toothed portion formed with internal teeth and a gear main body portion are joined integrally, the method including preforming an internal teeth-forming ring or disc for fo... | 11/08/2011 |
| 8020462 | Ball screw/nut type linear actuator A ball screw/nut type linear actuator (1) where a ball nut (32) moves in forward-backward directions by rotation of a ball screw shaft (31) connected to a motor (22), wherein the ball screw shaft (31) is connected and fixed, in a s... | 09/20/2011 |
| 7716838 | Method for manufacturing a bearing ring An outer ring of a cross roller bearing is a composite component having an outer ring main body portion constructed of a lightweight metal alloy and a raceway surface formation portion linked to an inner side thereof and constructed of a ferrous material. A ring for... | 05/18/2010 |
| 7637664 | Composite roll bearing A composite roll bearing (1), comprising an outer ring (2) and an annular inner ring (3) of groove shape in cross section having first, second, and third receiving surfaces (3a, 3b, 3c) facing the both e... | 12/29/2009 |
| 7484436 | Wave gear device A wave gear device, wherein, when a wave generator is in a low speed rotating state, a rolling bearing state is formed by a wave bearing and the wave generator and a flexible external gear are held in a relatively rotatable state and when the wave generator is in a ... | 02/03/2009 |
| 7462967 | Flat hollow brushless servo motor with tool mounting hole A flat, hollow brushless servomotor (1) has a motor housing (2), housing through holes (22a, 23a) formed in a center of both end plate portions (22, 23), a rotor shaft (41) of which a portion of both ends is ex... | 12/09/2008 |
| 7454995 | Joint mechanism for robot hand and the like A joint mechanism that can be used in an articulated finger unit of a robot hand has first and second actuators that are disposed facing each other from the front and back on either side of a perpendicular joint axle, and first and second drive bevel gears that are ... | 11/25/2008 |
| 7388344 | Multichannel pulse train transmitting apparatus In the multi-shaft driving apparatus, position command pulse trains for servomotors are generated from a motor controller and supplied to motor drivers for the respective servomotors via a multichannel pulse train transmitting apparatus. The multichannel pulse train... | 06/17/2008 |
| 7375487 | Geared motor A motor encoder is mounted on a motor shaft of a geared motor 1, and the origin position is detected by using a Z-phase signal. An absolute value encoder with a precision that allows the number of motor rotations to be determined is mounted on an output shaft... | 05/20/2008 |
| 7359102 | Driving method for galvano scanner A galvano scanner system has a galvano scanner and a scanner driver for driving the scanner, wherein a microcomputer for generating commands in which digital data representing a drive pattern of the scanner is written is mounted in the scanner driver. The microcompu... | 04/15/2008 |
| 7348897 | Apparatus for transmitting position detection signal of multi-shaft motor An apparatus for transmitting a position detection signal of a multi-shaft motor whereby a parallel-form detection signal that is output from position-detecting devices disposed on each of a plurality of motors and used for indicating a motor rotation position can b... | 03/25/2008 |
| 7331895 | Composite planetary device A composite planetary speed reduction device (1), wherein gears (11), (12), and (13) and rollers (21), (22), and (23) forming a planetary gear speed reduction mechanism (10) and a planetary roller speed reducti... | 02/19/2008 |
| 7328632 | Wave gear drive having widely engaging tooth profile A wave gear drive, wherein a rigid internal gear is formed in a spur gear with a module m and a flexible external gear is formed in a conical gear having an opening side front end with a module m. The number of the teeth of the external gear is reduced by the quanti... | 02/12/2008 |
| 7249536 | Wave gear device A diaphragm of a cup-shaped flexible external gear of a cup-shaped wave gear device having a high reduction ratio of 100 or higher is given a thickness t in a position of a radius r of the diaphragm whereby the thickness t is a value that satisfies the expression A/... | 07/31/2007 |
| 7224139 | Servo driver and encoder signal processing IC A servo driver (3) includes: an input section (11) for input-specifying the type of an encoder (7) at the side of an actuator (2); a control section (13) for generating a control signal (12) according to the type input; and ... | 05/29/2007 |
| 7213487 | Actuator having wave gear reduction drive An actuator has a motor and a wave gear reduction drive in which a wave generator is coaxially connected to an output shaft protruding forward from a front surface thereof. A shaft portion of the output shaft coaxially extends through inside a cylindrical trunk in t... | 05/08/2007 |
| 7196442 | Motor encoder An encoder mounted on a motor axle of an AC servomotor has a single bipolarly magnetized rotational disk, magnetic sensors for outputting X- and Y-signals that differ in phase by 90° in association with the rotation thereof, and a signal processing unit. The signal... | 03/27/2007 |
| 7165473 | Wave gear device having internal gear integrally formed with inner ring of bearing A wave gear device has a rigid internal gear, a flexible external gear, a wave generator, and a cross roller bearing for supporting the gears in a relatively rotatable manner. A toroidal composite member that functions as the rigid internal gear and an inner ring of... | 01/23/2007 |
| 7128469 | Lightweight bearing and wave gear drive A lightweight bearing and wave gear drive are provided. An outer or inner bearing ring of the bearing has fixing holes to enable the ring to be attached to another member. The parts of the bearing on which raceway surfaces are formed are made of an iron-based materi... | 10/31/2006 |
| 7117759 | Wave gear drive with wide mesh three-dimensional tooth profile A wave gear drive in which wide-area meshing of the rigid internal gear and flexible external gear is achieved, reducing stresses on the bottom rim of the gear teeth and in the vicinity of the major axis of the inner ring surfaces of the wave generator, thereby impr... | 10/10/2006 |
| 7077446 | Finger unit for robot hand An articulated finger unit has a two-jointed structure comprising a joint portion on a finger base side, a finger base portion, a joint portion on a fingertip side, and a fingertip portion; the joint portion on the finger base side has a drive-side bevel gear fixed ... | 07/18/2006 |
| 7059996 | Planetary gear drive A planetary gear drive includes a thin, elastically resilient internal gear arranged within an annular housing, in which there is also a carrier that is rotatably supported by a pair of tapered roller bearings. A sun gear located concentrically within a cylindrical ... | 06/13/2006 |
| 7059645 | Palm mechanism for robot hand A palm mechanism for a high-speed robot hand has a fixed-side articulated finger unit that projects forward from an upper side of a vertically positioned palm plate, and moveable-side articulated finger units disposed on both sides thereof. The left and right articu... | 06/13/2006 |
| D522548 | Component of an harmonic drive actuator | 06/06/2006 |
| D522029 | Component of a flat harmonic drive actuator | 05/30/2006 |
| 7032465 | Rotational angle detecting device for a wave gear device A driving mechanism includes a motor and a wave gear device. Three sets of torque sensors are attached at intervals of 120° on a diaphragm of a flexible external gear of the wave gear device. In the rotational angle detecting part of the signal processing circuit, ... | 04/25/2006 |
| 7034425 | Hybrid synchronous electric machine A hybrid synchronous electric machine driven by the transverse magnetic flux has a rotor and a stator, the rotor armature has a massive cogged iron rings (12) in close vicinity of active parts of the motor, and cogged iron rings (14, 15) as component p... | 04/25/2006 |
| 7026605 | Angle detection device for rotational body In an angle detection device for a rotational body, an external peripheral surface of an arc-shaped fluorescent fiber is scanned by a scanning beam from a scanning mirror fixed to the rotational shaft of a swing motor. Fluorescence is generated at a position in the ... | 04/11/2006 |
| 7023203 | Absolute magnetic encoder The encoder rotor of an absolute magnetic encoder mounted on a servomotor shaft has a first drum of a bipolar magnet, and a second drum with a Q-bit multipolar magnetic pole track and a reference track. A signal processor generates absolute signals on the basis of d... | 04/04/2006 |
| 6990435 | Tactile sensing method and system A system for detecting tactile information includes strain-gauge touch sensors and a controller. Based on the sum output from each of tough-sensor sensor units, an analyzer in the controller calculates touch force Fi(t) at each measurement point. An autom... | 01/24/2006 |
| 6962088 | Torque detection device for wave gearing The torque detection device for a wave gearing comprises a strain gauge unit having a strain gauge pattern. The strain gauge pattern includes circular-arc shaped detection segments A and B, and three terminal portions for external wiring with one being formed betwee... | 11/08/2005 |
| 6950769 | Encoder signal interpolation divider In an encoder signal interpolation divider (1) that automatically corrects errors in the offset and gain of an input signal at a high speed with a low cost circuit configuration, and can accurately generate an encoder signal having a predetermined resolution ... | 09/27/2005 |
| 6948855 | Multi-stage cross roller bearing A two-stage cross roller bearing (1) includes a first cross roller bearing (10) and a second cross roller bearing (20) that are disposed concentrically along a plane that is perpendicular to the bearing axis 1a. The inner ring of t... | 09/27/2005 |
| 6874231 | Method of manufacturing a rigid internal gear of a wave gear device A rigid internal gear 2 of the wave gear device is composed by integrating a tooth-forming ring 12 formed with internal teeth, and a main gear ring 11 into a single body. The tooth-forming ring 12 is manufactured from a ferrous or copper ... | 04/05/2005 |
| 6866608 | Planetary gear device A planetary gear device includes a first, a second, and a third ring-shaped member that are concentrically arranged in that order from the inside. A sun gear is coaxially fixed to an end surface of the first ring-shaped member, planet shafts of planet gears are supp... | 03/15/2005 |
| 6845689 | Silk hat shaped wave gear device A flexible external gear of a silk hat shaped wave gear device has an annular body, external teeth formed on an outer circumferential portion of a first opening of the body, a circular diaphragm connected to a second opening portion of the body, and a circular boss ... | 01/25/2005 |
