摘要:
A process for producing oxiracetam (4-hydroxy-2-oxo-1-pyrrolidineacetamide) useful as an agent for improving brain metabolism, under mild conditions and in a single process is provided, this process comprises reacting glycinamide with a butyric acid ester expressed by the formula ##STR1## wherein A represents a halogen atom or an epoxy group, B represents hydroxyl group, but when A is an epoxy group, A and B together form an epoxy group, and R represents an alkyl group.
摘要:
Derivatives of benzoisothiazole oxime which exhibit marked effect when used in plant protection agents for control of fungi and bacteria. They are of particular utility for the prevention of rice blast. The derivatives of benzothiazole oxime, according to this invention, are represented by the following general formula (I): ##STR1## wherein R.sub.1 is an alkyl group, and R.sub.2 is an alkyl, alkenyl, alkoxyalkyl or alkoxycarbonyl group, where R.sub.1 and R.sub.2 may be coupled together to form an alkylene chain.
摘要:
A programming device for making a program for returning a robot to its waiting position when the robot is stopped by an error. A robot control device is connected to the programming device via a network line. When the robot during operation is stopped by the error, information including data of a position where the robot is stopped is transferred to the programming device. The programming device makes the returning program, based on layout data, the received information and data including teaching positions and attribute data of the positions, by which the robot may be returned from the stop position to the waiting position without interfering with peripheral devices. The returning program is executed by using an offline simulation function of the programming device. The program is transferred to the robot control device after it is judged that interference will not occur. The robot may be safely returned to the waiting position by executing the returning program.
摘要:
A simulation device, for a robot, capable of judging off-line whether an article around an object to be detected interferes with the scope of a vision sensor during a measurement operation using the vision sensor, whereby the workload on an operator in the field may be reduced. Models of the scope of the vision sensor and the article, which may interfere with the scope of the vision sensor, are indicated on a display so as to indicate the occurrence of interference. This indication is based on whether at least a part of the article exists within the space defined by the scope of the vision sensor.
摘要:
A method of opening a network in a manufacturing system, the system including a plurality of robots, a plurality of robot controllers individually controlling the robots and a plurality of networks connecting the robot controllers with each other. The method includes the steps of opening a first network to the plurality of robot controllers, by setting, in each of the plurality of robot controllers, conditions, including addresses, required for opening the first network; designating an address range prepared in the first network for robot controllers to which a second network is opened and which is selected from among the plurality of robot controllers; and opening the second network to the robot controllers addressed within the address range designated in the first network, by setting, through the first network, conditions required for opening the second network.
摘要:
A robot controller is disclosed in which a specific target position is predetermined in order to define approaching and leaving paths for a robot hand, and a plurality of different path patterns are stored in a path pattern storage means as the approaching and leaving paths along which the robot hand approaches and leaves the predetermined specific target position. Next, based on a workpiece position detected by a visual sensor, one of the path patterns stored in the path pattern storage means is selected, and the selected path pattern is modified so that the target position of the robot hand is coincident with the actual workpiece position. The modified path pattern is defined as revised approaching and leaving paths and the robot hand is moved along the revised approaching and leaving paths.
摘要:
A robot controller capable of automatically preparing a job program for a workpiece configured of a plurality of job elements is disclosed. A plurality of teaching programs for teaching the job for each job element making up the workpiece are stored in advance. Each teaching program has registered therein attribute information including the item number (identification information) and the sequence of application of the teaching program to each workpiece. The robot controller retrieves teaching programs having registered therein, as attribute information, the same item number as the input item number of the workpiece and prepares a main program such that the retrieved teaching programs are called sequentially as subprograms in accordance with the application sequence specified by the attribute information. Further, commands for moving to the job starting position and the job end position are added before and after the main program thereby to complete the main program. Based on the main program thus prepared, the robot controller controls the robot operation.
摘要:
An offline programming device in which a path for preventing interference may be automatically inserted such that a welding robot does not interfere with a jig clamping a workpiece to be welded. The models of the robot, the workpiece and the clamp jig are indicated on a display for determining the path for preventing interference. A simulation is carried out to judge that interference with the jig may occur. When it is judged that interference will occur, data of the preventing path suitable for a straight path passing through the jig are read out from a library including registered preventing paths corresponding to shapes of various jigs. The data of the preventing path includes the three-dimensional data of each point of the path as the incremental value in relation to a reference point of the path. Also, the orientation of a welding torch is registered. The corrected welding program may be downloaded to the actual robot so as to correct the uploaded offline program by using a test result in the actual robot.
摘要:
An optical semiconductor device of the present invention is provided with a core layer having a quantum well layer in that film thickness gets thinner from a inner region to an end portion in an optical waveguide region.
摘要:
A semiconductor optical integrated device includes a substrate having a main surface with a first and second regions arranged along a waveguiding direction; a gain region including a first cladding layer, an active layer, and a second cladding layer arranged on the first region of the main surface; and a wavelength control region including a third cladding layer, an optical waveguide layer, and a fourth cladding layer arranged on the second region of the main surface and including a heater arranged along the optical waveguide layer. The substrate includes a through hole extending from a back surface of the substrate in the thickness direction and reaching the first region. A metal member is arranged in the through hole. The metal member extends from the back surface of the substrate in the thickness direction and is in contact with the first cladding layer.