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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Fujiwara; Nobuhiro
Address:
Tsukuba-gun, JP
No. of patents:
10
Patents:












Patent Number Title Of Patent Date Issued
7454903 Air servo cylinder November 25, 2008
In an air servo cylinder formed by integrally combining an air cylinder, servo valves, and a controller via a manifold block, there are provided, in the manifold block, air discharge flow paths for releasing, to the outside, compressed air discharged associated with operations of the
7453172 Linear slide apparatus November 18, 2008
A linear slide apparatus includes a straightly extending table guide, a table which is supported by one rail portion formed on an upper surface of the table guide and which can move in an axial direction thereof, and an electromagnetic actuator which drives the table. The electromagnetic
7391598 Ionizer June 24, 2008
To provide an ionizer wherein an air flow path in a hollow casing is formed so as to be pressure-resistant while ensuring an effective cross sectional area without becoming voluminous, and the flow path is ensured simply and easily. In an ionizer including a hollow casing that contains
7210394 Method and apparatus for controlling air cylinder May 1, 2007
A method for controlling an air cylinder such that air is supplied to and exhausted from pressure chambers of the air cylinder by air servo valves. Pressures in the pressure chambers are detected by pressure sensors, signals of the detected pressures are feedback to a controller, and the
7178448 Air servo cylinder apparatus and controlling method therefor February 20, 2007
A method for controlling an air servo cylinder apparatus includes an advancing process of advancing a piston up to a target position by controlling, by a controller, servo valves individually connected to a pressure chamber on the head side and that on the rod side of the cylinder, a
7062832 High-speed driving method of pressure cylinder June 20, 2006
The invention includes a moving step of moving a piston to a target position by supplying and discharging compressed air to and from pressure chambers on opposite sides of the piston of a pressure cylinder by driving servo valves by a controller, a clamping step of allowing a pressur
6819209 Magnetic damper and actuator having the same November 16, 2004
A magnetic damper comprises a movable braking plate for receiving an operating element of an actuator, and a stator for attracting the braking plate by a magnetic force. A magnetic attraction force acting between the stator and the braking plate is used as a braking force for stopping th
6799501 High speed driving method and apparatus of pressure cylinder October 5, 2004
A pressure cylinder is connected to an air pressure source through a servo valve, the servo valve is controlled as an on/off switching valve by a control section in an advancing working step of a piston rod, and at the time of backward stroke of the piston rod, an operation position of t
6786237 Air servo valve September 7, 2004
An exciting coil is wound on a cylindrical yoke provided with a pair of pole teeth, a cylindrical permanent magnet where N pole and S pole are magnetized in a radial direction is disposed so as to be movable in a hollow portion of the yoke and the permanent magnet is coupled to a spool
6722257 Workpiece high-speed pressurizing method and mechanism by using cylinder with cushioning mechani April 20, 2004
At a step of pressurizing a workpiece after reducing a speed of a piston rod at an end of a forward stroke of the piston rod by restrictively allowing compressed air to flow out of an exhaust-side pressure chamber, operation of a rapid exhaust valve is triggered by reduction of internal










 
 
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