Patent application number | Description | Published |
20090282920 | NUCLEAR REACTOR VIBRATION SURVEILLANCE SYSTEM AND ITS METHOD - A nuclear reactor vibration surveillance system has a first ultrasonic transducer for transmission, an ultrasonic transmitter, a second ultrasonic transducer for reception, an ultrasonic receiver, a signal processor, and a display unit. The first ultrasonic transducer for transmission is arranged on the outer surface of a reactor pressure vessel and is configured to convert a transmission signal into an ultrasonic pulse signal and allow the ultrasonic pulse to be transmitted to a reactor internal component. The second ultrasonic transducer for reception is arranged on the outer surface of the reactor pressure vessel and is configured to receive a reflected ultrasonic pulse reflected by the reactor internal component and convert the received reflected ultrasonic pulse into a reception signal. | 11-19-2009 |
20100314573 | SHEET FORMABLE MONOMER COMPOSITION, HEAT CONDUCTIVE SHEET AND PRODUCTION METHOD OF THE HEAT CONDUCTIVE SHEET - To provide a composition useful for forming a heat conductive sheet that satisfies both high heat conductivity and sufficient softness, has sufficient cohesive strength at a surface portion of a heat conductive sheet and does not cause remaining paste and breakage of an electronic appliance when the sheet is peeled. The composition comprises (A) a photo polymerizable component consisting of a (meth)acryl type monomer or its partial polymer; (B) a heat conductive filler; (C) a photo reaction initiator for initiating the polymerization of the photo polymerizable component; and (D) a photo absorber for absorbing and removing a predetermined wavelength band from electromagnetic rays used for the polymerization of the photo polymerizable component. | 12-16-2010 |
20110024402 | LASER WELDING APPRATUS AND LASER WELDING METHOD - According to one embodiment, a laser welding apparatus has a laser irradiation head that is arranged in an outer frame and is divided inside into a light source side and an irradiation side by a partitioning member. The apparatus also has a gas jet nozzle that is formed so as to irradiate a portion to be welded with the laser light and jet the inert gas to the portion to be welded; and a welding wire feed pipe that sequentially feeds a welding wire. The apparatus also has a welding wire contact mechanism that includes a measuring means for measuring a distance between the extremity of the irradiation side and the extremity of the welding wire, and is formed so that the extremity of the welding wire is brought into contact with and pressed against the portion to be welded by an elastic member. | 02-03-2011 |
20110198075 | IN-PIPE WORK DEVICE - According to an embodiment, an in-pipe work device is inserted into a pipe and remotely controlled by a control device to perform an operation for an inner surface of the pipe. The in-pipe work device has: a main unit; a main-unit support unit; a rotation arm; a process head; a first distance sensor; and a process head position adjustment mechanism that changes a distance from a rotation center of the rotation arm to the process head. The control device makes the process head position adjustment mechanism expand and contract based upon a result of measurement by the first distance sensor and operation condition information that is input in advance. | 08-18-2011 |
20110245373 | ACRYLIC THERMAL CONDUCTIVE SHEET AND METHOD FOR PRODUCING THE SAME - To provide a thermal conductive sheet having improved thermal conductivity while maintaining flexibility and flame retardancy, and a method for producing the same. The above sheet can be obtained from hardened material comprising: a binder component (A) containing at least one alkyl(meth)acrylate monomer having an alkyl group of 12 to 18 carbon atoms and/or a partial polymer thereof; aluminum hydroxide particles (B) having an average particle diameter of 0.3 m or more and less than 4.0 m which are obtained by a crystallization method and are not subjected to a pulverization treatment; aluminum hydroxide particles (C) having an average particle diameter of 4.0 m or more and 15.0 m or less which are obtained by a crystallization method and are not subjected to a pulverization treatment, and also satisfy the relation: average particle diameter of the particles (C)/average particle diameter of the particles (B)=3 to 15; and a reaction initiator (D); wherein the content of the component (A) is 100 parts by mass, the content of the component (B) is from 50 to 400 parts by mass, the content of the component (C) is from 50 to 1,000 parts by mass, and the content of the component (D) is from 0.01 to 5 parts by mass. | 10-06-2011 |
Patent application number | Description | Published |
20100170877 | LASER SHOCK HARDENING METHOD AND APPARATUS - There is provided an improved laser shock hardening method and apparatus which can eliminate spattering of a liquid and waving of the liquid surface upon laser irradiation, and can stably irradiate a workpiece with a laser beam. Thus, the present invention provides in a laser shock hardening method for carrying out surface processing of a workpiece in contact with a liquid by irradiating through the liquid the surface of the workpiece with a pulsed laser beam intermittently emitted from a laser irradiation device, the improvement comprising: providing a solid transparent to the wavelength of the laser, serving as an entrance window to the surface of the liquid; allowing the liquid to be present in the light path of the laser beam between the solid and the surface of the workpiece; and allowing the laser beam to enter through the solid and irradiating through the liquid the surface of the workpiece with the laser beam, thereby shock-hardening the surface of the workpiece. | 07-08-2010 |
20100258540 | SURFACE CRACK SEALING METHOD - A method of sealing a surface crack in a member is provided includes steps of irradiating a region of the member at which the crack is produced with a heating laser beam so as to heat the region to a temperature lower than a melting point of the member, and then irradiating a region of the member at which the crack is produced with a welding laser beam subsequent to irradiation of the heating laser beam so as to heat the region to a temperature higher than or equal to the melting point of the member, thereby sealing an opening of the surface crack of the member. | 10-14-2010 |
20130313232 | LASER SHOCK HARDENING APPARATUS - An improved laser shock hardening method and apparatus which can eliminate spattering of a liquid and waving of the liquid surface upon laser irradiation, and can stably irradiate a workpiece with a laser beam. In a laser shock hardening method for carrying out surface processing of a workpiece in contact with a liquid by irradiating through the liquid the surface of the workpiece with a pulsed laser beam intermittently emitted from a laser irradiation device, the disclosed method provides a solid transparent to the wavelength of the laser, serving as an entrance window to the liquid surface; allowing the liquid to be present in the light path of the laser beam between the solid and the surface of the workpiece; and allowing the laser beam to enter through the solid and irradiating through the liquid the surface of the workpiece with the laser beam. | 11-28-2013 |