Patent application number | Description | Published |
20080229719 | Dust Collection Device - A dust collection device has a tank, a suction unit, a filtering unit, a dust removal unit, a first detection unit, and a control unit. The tank has an air inlet for accommodating dust. The suction unit aspirates the dust through the air inlet. The filtering unit captures the dust through the air inlet. The dust removal unit removes the dust from the filtering unit. The first detection unit detects an operational state of the suction unit. The control unit controls the suction unit and the dust removal unit. The control unit activates the dust removal unit, when the first detection unit detects that the suction unit operates for a first predetermined time period and then stop operating. | 09-25-2008 |
20090321492 | FASTENER DRIVING TOOL - A fastener driving tool has a housing, a nose portion, a magazine, a motor, a plunger, a drive mechanism, a trigger switch, a detection switch, an energizing switch, a failure detection circuit. The magazine is configured to store and supply a fastener to the nose portion. The motor is provided in the housing. The a plunger is provided in the housing to move between a top dead center and a bottom dead center. The plunger has a blade for impacting the fastener. The drive mechanism is configured to drive the plunger with power from the motor. The trigger switch is configured to drive the drive mechanism, and operated by a user. The detection switch is configured to be switched according to an arrangement of the drive mechanism. The energizing switch is configured to control power feed of the motor. The energizing switch is switched by the trigger switch and the detection switch. The failure detection circuit is configured to turn off the energizing switch, based on a condition of the detection switch prior to impacting the fastener. | 12-31-2009 |
20110021332 | CENTRIFUGE AND CONTROL METHOD THEREOF - A centrifuge comprises a rotor for holding a sample, a rotation chamber for housing the rotor, a motor for rotating the rotor, an oil diffusion pump for reducing a pressure within the rotation chamber, and a control unit for controlling the heater temperature of the oil diffusion pump for a target set temperature. The control unit changes the target set temperature from a first given temperature to a second given temperature that is lower than the first given temperature after a given period of time elapses since the start of control of the heater temperature. | 01-27-2011 |
Patent application number | Description | Published |
20090255972 | ELECTRIC DRIVING MACHINE - An electric driving machine includes a remaining fastener sensor | 10-15-2009 |
20100154161 | DUST COLLECTOR - To provide a dust collector which, even when it is used in a poor power supply situation, can detect the dust loading of a filter accurately, can remove dust automatically and can reduce power consumption. In the dust collector, there is provided a control circuit which can detect the dust loading of a filter by comparing the threshold value of the dust loading pressure to be determined by the internal pressure of the filter, the operation of a suction device, the power supply frequency of the suction device and the supply voltage of the suction device with the filter internal pressure just before the suction device stops, and, when the filter is dust loaded, can operate a dust removing device. | 06-24-2010 |
20100237124 | ELECTRIC DRIVING MACHINE - A controller | 09-23-2010 |
20120260687 | CENTRIFUGE - A centrifuge including: a rotor configured to be driven by a motor and to hold a sample, a centrifuge inverter, a chamber accommodating the rotor, a temperature sensor configured to detect the temperature of the chamber, a cooling machine configured to cool the chamber and including a compressor, a compressor inverter, a compressor motor configured to be controlled in a variable speed and a control device, wherein the control device carries out a feedback control of the compressor motor based on a preset temperature and a detected temperature of the temperature sensor when the rotation number of the compressor motor is larger than a predetermined rotation number, and the control device carries out an intermittent control for turning ON-OFF the cooling function of the compressor when the rotation number of the compressor motor is smaller than a predetermined rotation number. | 10-18-2012 |
20140031191 | CENTRIFUGE - A centrifuge including: a rotor configured to hold a sample and configured to be detachably mounted, a rotation chamber accommodating the rotor, a plurality of motors configured to be rotationally driven by three-phase AC power, and a control device configured to control centrifuging operation, wherein one of the plurality of motors is a centrifuge motor configured to rotate the rotor, and the control device is configured to change distribution of power supplied to the centrifuge motor and power supplied to another motor of the plurality of motors during one operation. | 01-30-2014 |
Patent application number | Description | Published |
20110084211 | DETECTOR-SHIFT TYPE COMBINED RADIATION THERAPY/PET APPARATUS - In beam monitoring for detecting annihilation radiations produced by radiation irradiation in radiation therapy for cancer which is performed by irradiating the affected area by X-rays, gamma rays, or particle beams, a detector-shift type combined radiation therapy/PET apparatus is provided with an open PET device that includes a plurality of shiftable multi-ring detector rings; and a radiation irradiation device that is capable of irradiation with a radiation beam through between the detector rings. The apparatus changes the positions of the detector rings, performs irradiation with the radiation beam through between the detector rings, and then performs radiation measurement. | 04-14-2011 |
20110092814 | COMBINED RADIATION THERAPY/PET APPARATUS - A combined radiation therapy/PET apparatus includes: an open PET device having multi-ring detector rings that are opposed to each other in the direction of the body axis so as to leave a gap therebetween; and a radiation therapy apparatus for performing radiation therapy through the gap. When imaging the condition of an affected area and a treatment beam for monitoring in radiation therapy of irradiating the affected area with X-rays, gamma rays, or particle beams, the apparatus covers a region of interest in the irradiation field of the radiation therapy with the field-of-view of the open PET device, thereby making possible the positioning of the irradiation field and treatment monitoring using PET images. | 04-21-2011 |
20120150018 | SHIELD TYPE RADIATION THERAPY AND IMAGING HYBRID DEVICE - A shielding structure against nuclear fragments (referred to as a shield) is operated according to ON and OFF of beam irradiation so as to reduce incidence of nuclear fragments on detectors during beam irradiation. This enables measurement of annihilation radiations and three-dimensional imaging of the irradiation field immediately after irradiation or even during irradiation. | 06-14-2012 |
20120165651 | DETECTOR ROTATION TYPE RADIATION THERAPY AND IMAGING HYBRID DEVICE - An imaging device, or a PET device, opposed gamma camera type PET device, or open PET device in particular, that is combined with a radiation therapy device, in which detectors are rotated to reduce incidence of nuclear fragments on the detectors. For example, in an opposed gamma camera type PET device, beam irradiation and detector rotation can be synchronized to prevent the detectors from interfering with the treatment beam and reduce the incidence of nuclear fragments on the detectors. This makes it possible to reduce the incidence of nuclear fragments on the detectors without interfering with a treatment beam, thereby enabling measurement of annihilation radiations and three-dimensional imaging of the irradiation field immediately after irradiation or during irradiation. | 06-28-2012 |
20120305790 | PARTICLE BEAM IRRADIATION APPARATUS AND CONTROL METHOD OF THE PARTICLE BEAM IRRADIATION APPARATUS - Provided is a particle beam irradiation apparatus capable of highly reliable measurement of a dose of each beam and capable of highly sensitive measurement of a leakage dose caused by momentary beam emission. The particle beam irradiation apparatus according to the present invention includes: an emission control portion that controls emission and termination of a particle beam; a control portion that sequentially changes an irradiation position of the particle beam relative to an affected area; first and second dosimeters that measure dose rates of the particle beam directed to the affected area; and an abnormality determination portion that accumulates the dose rates output from the first and second dosimeters for each of predetermined determination periods to calculate first and second sectional dose measurement values and that performs second abnormality determination of determining that there is an abnormality and outputs an interlock signal for terminating the emission of the particle beam in at least one of a case in which the first sectional dose measurement value exceeds a predetermined first reference range and a case in which the second sectional dose measurement value exceeds a predetermined second reference range. | 12-06-2012 |
20120305796 | PARTICLE BEAM IRRADIATION APPARATUS AND CONTROL METHOD OF THE PARTICLE BEAM IRRADIATION APPARATUS - Provided is a particle beam irradiation apparatus that can measure and display a dose two-dimensional distribution during scan with a simple configuration, while reducing degradation of a particle beam shape. The particle beam irradiation apparatus according to the present invention includes: a beam generation portion that generates a particle beam; a beam emission control portion that controls emission of the particle beam; a beam scanning portion that two-dimensionally scans the particle beam; a sensor portion including a plurality of first linear electrodes arranged in parallel in a first direction and a plurality of second linear electrodes arranged in parallel in a second direction orthogonal to the first direction; a beam shape calculation portion that calculates a center of gravity of the particle beam from a first signal output from each of the first linear electrodes and a second signal output from each of the second linear electrodes and that obtains a two-dimensional beam shape of the particle beam around the center of gravity; a storage portion that accumulates and stores the two-dimensional beam shapes; and a display portion that displays the two-dimensional beam shapes as a two-dimensional distribution of a dose. | 12-06-2012 |