| TSUKUBA SEIKO LTD. Patent applications |
| Patent application number | Title | Published |
|---|
| 20100309603 | ELECTROSTATIC-TYPE REINFORCEMENT APPARATUS - A reinforcement apparatus is for reinforcing a thin plate-like reinforcement object which is required to be temporarily reinforced in operating processes. The electrostatic-type reinforcement apparatus includes a reinforcement material body including a thin plate type electrostatic holding part formed by burying an electrode part into an electric insulating layer, and a voltage controller constituted to be separated from the reinforcement material body and having a first connecting terminal configured to allow an reinforcement object conducted to an earth and a second connecting terminal configured to allow the electrode part to be conducted to an earth or a high voltage. The voltage controller includes an attracting process part configured to attract the reinforcement object by generating an attraction force in the electrostatic holding part by supplying an electric charge of a reverse polarity to the charges supplied to the electrode part to the reinforcement object from the earth and an attraction releasing process part configured to cancel an electrostatic attracting ability by releasing charges stored in the reinforcing object and the electrode part from the earth. | 12-09-2010 |
| 20090135540 | Electrostatic holding apparatus and electrostatic tweezers using the same - To provide an electrostatic holding apparatus which is capable of performing handling for a long period of time even when a direct current high-voltage power supply is separated from the electrostatic holding apparatus. The electrostatic holding apparatus holds a workpiece to be held with an electrostatic force by applying prescribed voltages from the direct current high-voltage power supply to a plurality of electrode groups having the electrode groups as a holding section. The electrostatic holding apparatus is provided with an electrode potential drop modifying apparatus which modifies drops of potentials applied to the electrode groups by being separated from the direct current high-voltage power supply by switches. The electrode potential drop modifying apparatus includes, for instance, capacitors. | 05-28-2009 |
| 20090021885 | Electrostatic Holding Apparatus, Vacuum Environmental Apparatus Using it and Joining Apparatus - An electrostatic holding apparatus is configured to electrostatically hold objects (W | 01-22-2009 |
