| Patent Number |
Title Of Patent |
Date Issued |
| D543221 |
Electric cylinder with guide |
May 22, 2007 |
|
| D542314 |
Electric cylinder with guide |
May 8, 2007 |
|
| D540355 |
Electric cylinder with guide |
April 10, 2007 |
|
| D525194 |
Motor controller |
July 18, 2006 |
|
| D473784 |
Nut for a ball spline shaft |
April 29, 2003 |
|
| D456826 |
Linear actuator |
May 7, 2002 |
|
| D456782 |
Motor controller |
May 7, 2002 |
|
| D438441 |
Electric clamping device |
March 6, 2001 |
|
| 7220205 |
Automatic speed reducing ratio-switching apparatus |
May 22, 2007 |
| Helical gears are used for a sun gear, planet gears, and an internal gear. Accordingly, when a load, which exceeds a preset torque, is applied to the internal gear, the internal gear is moved in a direction toward an input shaft or a direction toward an output shaft while making rotation |
| 7181988 |
Actuator |
February 27, 2007 |
| A rotary driving source is connected to one end of a frame. The rotary driving force of the rotary driving source is transmitted to a slider by the aid of a driving pulley, a belt member, and a driven pulley. The slider is displaced in the axial direction of the frame while being gui |
| 7159482 |
Electric actuator |
January 9, 2007 |
| An electric actuator comprises a gear mechanism which transmits the rotary driving force of a rotary driving source, and a ball spline mechanism which includes a ball spline shaft provided movably back and forth from a connecting block to the outside and which converts a rotary motion |
| 7111835 |
Clamp apparatus |
September 26, 2006 |
| A clamp apparatus has a lower body. A rotary driving source driven by an electric signal, a pump mechanism having a pressure oil-sucking/discharging mechanism energized/deenergized by the rotary driving source, a cylinder mechanism provided with a piston for moving in an axial direct |
| 7066649 |
Actuator |
June 27, 2006 |
| In an actuator, displacement resistance in axial movement of a slider is reduced to improve durability and enhance maintainability. At each side of the actuator, a slit is made between a top cover and a side cover. Magnetic bodies are provided on the surfaces of both side walls of the |
| 7055320 |
Actuator |
June 6, 2006 |
| An actuator comprises a pump-driving section which is driven and rotated by a current, and a pump mechanism which is connected to the pump-driving section and which sucks/discharges a pressure oil. A cylinder mechanism, which has a piston that is displaceable in the axial direction by be |
| 6988425 |
Actuator |
January 24, 2006 |
| An actuator comprises a driving force-transmitting mechanism which includes a belt member running over a driving pulley and a driven pulley, and a guide mechanism which includes a plurality of balls which rolls along first ball-rolling grooves formed on a frame, and second ball-rolli |
| 6928922 |
Lubricating structure for hydraulic driving apparatus |
August 16, 2005 |
| Seal sections, which support first and second piston rods, are provided on inner circumferential surfaces of first and second cover members of a cylinder mechanism. A lubricant is supplied via supply passages and oil supply ports to first oil-retaining members, which are installed in |
| 6848327 |
Actuator |
February 1, 2005 |
| An actuator comprises a feed screw shaft mechanism including a ball screw shaft and a ball screw nut, and a slider having an opening for receiving the ball screw shaft and the ball screw nut therein. The feed screw shaft mechanism is assembled into a single unit which is detachably insta |
| 6672765 |
Direct drive bearing mechanism |
January 6, 2004 |
| A direct drive bearing mechanism comprises guide plates which are installed to retaining recesses of a guide block and each of which has a plurality of hemispherical dimples, race members which are installed to a guide rail and each of which has a groove having a circular arc-shaped cros |
| 6668988 |
Buffering mechanism |
December 30, 2003 |
| A buffering mechanism comprises a block member which is installed detachably in an actuator body, a piston which compresses air in a compressing chamber when a movable element abuts against the piston, and a check valve and a variable throttle valve which are provided in a passage fo |
| 6655225 |
Motor-driven actuator |
December 2, 2003 |
| A load of a workpiece, which is applied to a slider (68), is supported by guide blocks (78) and guide rails (30a, 30b) provided for a frame (12). On the other hand, pin members (72), which constitute a floating mechanism (64) provided under the slider (68), are slidably engaged with fitt |
| 6637314 |
Actuator |
October 28, 2003 |
| An air is evacuated from a chamber of a bellows by a vacuum pressure supply source connected to a vacuum port of an attachment plate. The vacuum pressure in a vacuum chamber is thus balanced with the vacuum pressure in the chamber of the bellows. Consequently, the bellows is prevented fr |
| 6619846 |
Actuator |
September 16, 2003 |
| A guide mechanism is provided with first guide rails each having a circular arc-shaped cross section to be installed to first long grooves each having a circular arc-shaped cross section formed on an inner wall surface of a frame, and second guide rails each having a circular arc-shaped |
| 6471199 |
Electric clamp apparatus |
October 29, 2002 |
| A gear mechanism has a first gear which is coaxially connected to a drive shaft of a rotary driving source, a second gear which is meshed with the first gear, and a third gear which is meshed with the second gear and which is integrally interlocked with a ball screw nut. Diameters of the |
| 6354580 |
Electric clamp apparatus |
March 12, 2002 |
| Disclosed is an electric clamp apparatus comprising a rotary driving section for making rotary driving in accordance with an electric signal; a gear mechanism for transmitting rotary driving force of the rotary driving section; a ball screw mechanism for converting rotary motion transmit |
| 6344718 |
Electric actuator |
February 5, 2002 |
| Disclosed is an electric actuator comprising a feed nut member and a movable member for making displacement along a longitudinal direction of a frame by the aid of a rotary driving force transmitted by a ball screw shaft in accordance with a driving action of a rotary driving source, and |
| 6225032 |
Method for manufacturing liquid jet recording heads and a head manufactured by such method of ma |
May 1, 2001 |
| A method for manufacturing liquid jet recording heads, each provided with discharge ports to discharge liquid, a discharge port plate having the discharge ports arranged therefor, and performing ablation processing of holes becoming the discharge ports by use of a mask for projecting the |
| 5887623 |
Fluid pressure apparatus |
March 30, 1999 |
| A fluid pressure apparatus of this invention provides advanced control without imposing an excessive burden on a sequencer. When a plurality of fluid pressure apparatuses are connected to one another by manifolds, the individual fluid pressure apparatuses are provided with controller |
| 5884664 |
Fluid pressure apparatus |
March 23, 1999 |
| A fluid pressure apparatus of this invention provides advanced control without imposing an excessive burden on a sequencer. When a plurality of fluid pressure apparatuses are connected to one another by manifolds, the individual fluid pressure apparatuses are provided with controller |
| 5799543 |
Actuator structural body |
September 1, 1998 |
| An actuator structural body is constructed of standardized columnar bodies connected for moving a workpiece. The Actuator structural body includes actuators shaped as columnar bodies and having T-shaped grooves defined in outer side surfaces thereof, columnar member shaped as columnar bo |
| 5761960 |
Actuator |
June 9, 1998 |
| A motor, a ball screw shaft, etc. are accommodated within a frame that forms an outer frame. Direct-acting guides are provided on both sides of a groove-shaped opening defined in the frame. The ball screw shaft is centrally disposed within the frame. A table slides along the direct-a |
| 5676016 |
Electric actuator |
October 14, 1997 |
| An electric actuator has a body with a hole defined therein and an electric motor fixed to an end of the body. The electric motor has a rotatable shaft to which a feed screw is coaxially connected, and a feed nut is threaded over the feed screw. The hole receives an elongate cylindrical |
| 5617898 |
Fluid pressure apparatus |
April 8, 1997 |
| A fluid pressure apparatus of this invention provides advanced control without imposing an excessive burden on a sequencer. When a plurality of fluid pressure apparatuses are connected to one another by manifolds, the individual fluid pressure apparatuses are provided with controller |
| 5617338 |
Method of and system for electrically processing vacuum pressure information suitable for use in |
April 1, 1997 |
| A method of and a system for electrically processing vacuum pressure information, which is suitable for use in a vacuum unit. Pressure values are detected and a desired pressure value lower than the highest vacuum pressure value of the detected pressure values is displayed on a displ |
| 5604386 |
Switch device and wiring structure therefor |
February 18, 1997 |
| The present invention relates to a switch device having a sensor for effecting a detection process such as a confirming the operation of an ejector or the like, confirming the existence of an object fed by a suction pad, or confirming the attracted state of an object fed by the sucti |
| 5601415 |
Fluid pressure device |
February 11, 1997 |
| A fluid pressure device having a fluid unit suitable for use as a vacuum generating unit formed by connecting together a plurality of blocks having different functions, the fluid unit being connected to an external device. The fluid pressure device includes a plug-in/one-touch type elect |
| 5566718 |
Fluid pressure device |
October 22, 1996 |
| A fluid pressure device having a fluid unit suitable for use as a vacuum generating unit formed by connecting together a plurality of blocks having different functions, the fluid unit being connected to an external device. The fluid pressure device includes a plug-in/one-touch type elect |
| 5499547 |
Actuator |
March 19, 1996 |
| A motor, a ball screw shaft, etc. are accommodated within a frame that forms an outer frame. Direct-acting guides are provided on both sides of a groove-shaped opening defined in the frame. The ball screw shaft is centrally disposed within the frame. A table slides along the direct-a |
| 5445045 |
Actuator and actuator arrangement |
August 29, 1995 |
| Disclosed is an actuator having a frame in which a drive source and a slider displaced under the action of the drive source are held, and an actuator arrangement comprising a plurality of actuators connected to each other by connecting devices. A beam member, which constitutes the frame, |
| 5367661 |
Technique for controlling channel operations in a host computer by updating signals defining a d |
November 22, 1994 |
| A technique, specifically apparatus and an accompanying method, for use in, e.g., a "host" operating system (610), for properly updating a dynamically alterable channel program that controls an input/output (I/O) device so as to emulate a "guest" computer system, that employs dynamic add |
| 5320497 |
Vacuum feeding apparatus |
June 14, 1994 |
| Disclosed herein is a vacuum feeding apparatus for causing a working device such as a suction pad to communicate with a vacuum port so as to enable the working device to attract and hold a work or feed it to a desired position. In the vacuum feeding apparatus, components such as a valve |
| 5234386 |
Actuator and actuator arrangement |
August 10, 1993 |
| Disclosed is an actuator having a frame in which a drive source and a slider displaced under the action of the drive source are held, and an actuator arrangement comprising a plurality of actuators connected to each other by connecting devices. A beam member, which constitutes the frame, |
| 5193776 |
Mechanism for locking angular movement of suction pad |
March 16, 1993 |
| Disclosed herein is a mechanism for locking the angular movement of a suction pad. The mechanism comprises a tubular body fitted to a root part of the suction pad and having a flange; a cover member attached to a moving assembly for displacing the suction pad; a first bush having a s |
