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| Number | Title | Issue Date |
| 8179122 | Current/voltage detection printed board and current/voltage detector A printed board, includes: a first shield portion, configured to reduce an influence of an electric field in combination with a casing accommodating the printed board, at least a part of the first shield portion being formed with a plurality of through holes; and a ... | 05/15/2012 |
| 8134816 | High-frequency power supply system A high-frequency power supply system includes an anomaly detector 3 which detects an anomaly occurring in a circuit on the side of a load L as from an outputting end A of a high-frequency power source 1. The anomaly detector 3 includes a first d... | 03/13/2012 |
| 8067714 | Squeezing detection control method for consumable electrode arc welding A squeezing detection control method is provided for consumable electrode arc welding. The method includes a step of detecting a droplet squeezing phenomenon by checking that a change in a voltage or resistance between the consumable electrode and base material reac... | 11/29/2011 |
| D647680 | Lifting link mechanism | 10/25/2011 |
| 8011874 | Transfer apparatus A transfer apparatus includes a stationary base, a lift base, a lifting mechanism for vertically moving the lift base, a rotary base mounted to the lift base, a rotating mechanism for rotating the rotary base about a vertical rotation axis, a linear moving mechanism... | 09/06/2011 |
| D640030 | Lifting link mechanism of article transferring robot | 06/14/2011 |
| 7946799 | Transfer apparatus A transfer apparatus includes a fixed base, a swivel, a lift mechanism for raising and lowering the swivel relative to the fixed base, a swivel mechanism for turning the swivel about a vertical swivel axis, a linear movement mechanism supported by the swivel, and a ... | 05/24/2011 |
| 7919728 | Welding current controlling method in arc welding process using consumable electrode upon detection of constriction A welding current controlling method is provided for an arc welding process using a consumable electrode and including an alternate repetition of a short-circuiting state and an arc generating state occurring between the consumable electrode and a base material. In ... | 04/05/2011 |
| 7915563 | Arc detector for plasma processing system An arc detector is provided for a plasma processing system including a HF power source, a plasma processor, and a voltage/current signal detector. The arc detector includes a calculator for the phase difference between the AC voltage signal and the AC current signal... | 03/29/2011 |
| 7850414 | Linear transfer mechanism and transfer robot using the same A linear transfer mechanism includes a guide member, a transfer carriage movable along a horizontal linear transfer path provided on the guide member, and a drive mechanism provided with a drive pulley and an output belt wound around the drive pulley for reciprocati... | 12/14/2010 |
| 7800016 | Polarity switching short circuiting arc welding method A method of performing polarity switching short circuiting arc welding is provided. In the arc welding, a welding wire is fed at a constant feeding rate, a short circuiting state and a arcing state appear repeatedly between the welding wire and a base metal, and the... | 09/21/2010 |
| 7796368 | High-frequency power supply system A high-frequency power supply system includes an anomaly detector 3 which detects an anomaly occurring in a circuit on the side of a load L as from an outputting end A of a high-frequency power source 1. The anomaly detector 3 includes a first d... | 09/14/2010 |
| 7748760 | Work holding mechanism A work holding mechanism for horizontally holding a flat work is incorporated in work transport equipment. The holding mechanism includes a base member for supporting the work and a plurality of guide members provided at the base member. Each guide member includes a... | 07/06/2010 |
| 7736118 | Transfer apparatus A transfer apparatus includes a stationary base, a swivel supported by the stationary base to be rotatable about a vertical axis, a guide member mounted on the swivel, a linear movement mechanism supported by the swivel or the guide member, a hand supported by the l... | 06/15/2010 |
| 7714594 | Current detection printed board, voltage detection printed board, and current/voltage detector using same, and current detector and voltage detector A current detection printed board includes: a board having a penetration hole that penetrates the board; and at least one wire that is formed in a coiled shape having both ends by penetrating the board along the periphery of the penetration hole and alternately conn... | 05/11/2010 |
| 7702702 | Signal processing device for computing phase difference between alternating current signals A signal processing device includes a converting unit, a filtering unit, a differential computing unit, and a phase difference computing unit. The converting unit samples two alternating signals with a predetermined period and converts the sampled level values into ... | 04/20/2010 |
| 7665950 | Transfer apparatus A transfer apparatus includes a stationary base, a swivel rotatable around a vertical rotation axis, a linear movement mechanism supported by the swivel, a hand supported by the linear movement mechanism for transferring a work along a horizontal path, a driving pow... | 02/23/2010 |
| 7642879 | Impedance matching apparatus An impedance matching apparatus 3 calculates a forward wave voltage Vfo and a reflected wave voltage Vro at an output terminal 3b, based on a forward wave voltage Vfi and a reflected wave voltage Vri at an input terminal 3a, on inf... | 01/05/2010 |
| 7630220 | High frequency power supply A high frequency power supply includes a DC source unit (19) that outputs a DC voltage Vdc having an output level corresponding to a target voltage, an oscillation unit (13) that outputs a high frequency voltage signal having an output level correspond... | 12/08/2009 |
| 7615983 | High frequency power device for protecting an amplifying element therein A high frequency power device includes a first oscillator outputting a first oscillating signal oscillated by a first predetermined frequency and a second oscillator outputting a second oscillating signal oscillated by a second predetermined frequency. A phase adjus... | 11/10/2009 |
| 7495524 | Impedance matching apparatus An impedance matching apparatus has: a storing portion 70 for previously storing, for plural positions which can be taken by a movable portion of a variable impedance element, allowable power values respectively corresponding to the plural positions of the mo... | 02/24/2009 |
| 7492817 | Adaptive digital filter An adaptive digital filter includes a filtering circuit and a coefficient renewal circuit. The filtering circuit has a coefficient a defined by a fundamental formula: a[n+1]=a[n]+β·e[n]·q[n]/p[n]. β is a number greater than 0 and smaller than 2, e[n] is a differ... | 02/17/2009 |
| 7489206 | High-frequency power device and method for controlling high-frequency power A high-frequency power device including: an oscillator; a high-frequency power supplier; a reflection coefficient calculator; a discharge signal output unit; and a frequency controller, wherein the frequency controller: instructs the oscillator to oscillate the osci... | 02/10/2009 |
| 7489145 | Plasma processing system A high-frequency measurement unit includes a signal detector for detecting a high-frequency signal, and a calibration coefficient storage for storing calibration coefficients Cmin and Cmax used to calibrate a value Amin detected at the lowest limit frequency fmin an... | 02/10/2009 |
| 7332981 | Impedance matching apparatus for a plasma chamber comprising two separate storage units and three separate calculators An impedance matching apparatus 3 calculates a forward wave voltage Vfo and a reflected wave voltage Vro at an output terminal 3b, based on a forward wave voltage Vfi and a reflected wave voltage Vri at an input terminal 3a, on inf... | 02/19/2008 |
| 7306423 | Linear moving mechanism and transfer robot using the same A linear moving mechanism includes a guide member providing a horizontal straight transport path, a moving member movable along the transport path and a drive mechanism which drives the moving member. The drive mechanism includes a first link arm pivotable around a ... | 12/11/2007 |
| 7292047 | High-frequency power source A high-frequency power source supplies high-frequency power to a load whose reflection characteristic for the power varies with time. The power source includes a frequency-variable power generator, a power detector for detecting the power into the load and the power... | 11/06/2007 |
| 7265528 | High-frequency power apparatus A high-frequency power apparatus including: an oscillator, outputting an oscillating signal, an output level of the oscillating signal being variable; an amplifier, amplifying the oscillating signal output from the oscillator and outputting high-frequency power; a D... | 09/04/2007 |
| 7221102 | High-frequency power supply device The invention relates to a HF power supply device including an oscillator (11) outputting a HF signal, an amplifier (12) amplifying the output of the oscillator for supplying a HF output to a load, and a DC power supply (13) to supply a DC power... | 05/22/2007 |
| 7210638 | Electric arc spraying system An electric arc spraying system includes a spraying gun for thermally spraying an inner surface of an object such as a cylinder block by blasting compressed gas substantially perpendicularly to the supplying direction of target wires. The spraying gun is rotated by ... | 05/01/2007 |
| 7202442 | Cable arrangement for robot arm, and industrial robot utilizing the same A cable arrangement for a robot arm is provided, which includes a rotation arm and a line member such as a power cable. The rotation arm has a front end and a base end, the front end being provided with a swing shaft, the base end being provided with a rotational sh... | 04/10/2007 |
| 7200881 | Transfer device A transfer device includes a lower mechanism and an upper mechanism stacked on the lower mechanism. The lower mechanism includes a first endless belt, and the upper mechanism includes a second endless belt. The first and the second endless belts are operable indepen... | 04/10/2007 |
| 7199678 | Impedance matching apparatus for a plasma chamber comprising two separate storage units and calculators An impedance matching apparatus 3 calculates a forward wave voltage Vfo and a reflected wave voltage Vro at an output terminal 3b, based on a forward wave voltage Vfi and a reflected wave voltage Vri at an input terminal 3a, on inf... | 04/03/2007 |
| 7145101 | Pulse arc welding output control method and arc length variation pulse arc welding output control method An output control method is provided for a pulse arc welding in which a welding current flows for one pulse period consisting of a peak period with a flow of a peak current and a base period with a flow of a base current. External characteristics of a welding power ... | 12/05/2006 |
| 7114907 | Transfer robot A transfer robot includes a swivel base pivotable about a vertical axis, a hand for holding a plate-like work placed thereon, and a linear transfer mechanism supporting the hand and provided on the swivel base. The transfer mechanism is designed to move the hand for... | 10/03/2006 |
| 7110273 | Inverter controlling method An inverter controlling method is provided for a power system that includes a DC power source and a plurality of inverters connected in parallel to the power source. The method includes the steps of: measuring output power of the power source at a plurality of perio... | 09/19/2006 |
| 7056080 | Two-arm transfer robot A two-arm transfer robot includes a swivel base arranged to swivel about a vertical swivel axis, and a pair of link arm mechanisms attached to the swivel base. These two link arm mechanisms are symmetrical in structure and function with respect to the swivel axis. A... | 06/06/2006 |
| 7042195 | Method of controlling photovoltaic power generation system A conventional hill climbing method is not capable of tracking a maximum power when a shadow covers a part of a solar cell panel and a plurality of maximal values is thereby developed. The invention provides a photovoltaic power generation system control method that... | 05/09/2006 |
| 7042740 | Soft-switching half-bridge inverter power supply system An inverter power supply system includes a half-bridge inverter circuit which includes a first switching element, a second switching element, a first auxiliary capacitor and a second auxiliary capacitor for converting a DC voltage from a DC power supply circuit to a... | 05/09/2006 |
| 6946847 | Impedance matching device provided with reactance-impedance table An impedance matching device is provided, for which the electric characteristics at an output terminal are accurately analyzed. The matching device is provided with an input detector for detecting RF voltage and current at the input terminal, and an output detector ... | 09/20/2005 |
