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| 20090056839 | Method for Improving Residual Stress of Structure Member - A method for improving residual stress of a structure member, comprising steps of: | 03-05-2009 |
| 20090255275 | METHOD FOR IMPROVING RESIDUAL STRESS IN PIPE AND APPARATUS - An method for converting tensile residual stress on an inner surface of a welded part of a pipe to compressive residual stress with use of ice plugs formed by cooling the pipe from the outer surface, comprises the steps of: placing refrigerant containers for forming the ice plugs in the upstream and downstream of a butt-welded part; cooling the outer surface of the pipe to form the ice plugs; and then cooling the outer surface of the pipe with use of at least one refrigerant container for expanding the pipe arranged between the refrigerant containers for forming the ice plugs. When the method is applied to a pipe with a large inside diameter, the method comprises forming the ice plugs at a curved pipe, an elbow or a branch pipe in the upstream and downstream of the butt-welded part. | 10-15-2009 |
| 20100089164 | UNDERWATER REMOTE SURFACE INSPECTION METHOD AND APPARATUS FOR REACTOR CONSTITUTING MEMBER - In an underwater remote surface inspection method for a reactor constituting member, in order to improve the precision of an operation of inspecting a surface shape of the reactor constituting member, an underwater remote surface inspection apparatus includes a replica picking head, an ultrasonic vibrator, and a replica agent cartridge. The replica picking head is pressed against a surface of core internal structure as an inspection target. A replica agent is supplied from the replica agent cartridge into the replica agent supply region formed inside the replica picking head and contacting with the surface of the core internal structure. After the operation of supplying the replica agent ends, an ultrasonic wave is transmitted from an ultrasonic vibrator to the replica agent inside the replica agent supply region. Accordingly, gas bubbles or liquid bubbles existing inside the replica agent supply region rise up so as to be discharged to the outside of the replica picking head through an air extracting hole. As a result, the gas bubbles or the liquid bubbles do not remain in the surface of the replica agent contacting with the surface of the core internal structure. | 04-15-2010 |
| 20110064182 | CONTROL ROD FOR BOILING WATER REACTOR - A control rod for a boiling water reactor is provided with a structure element having mutually-perpendicular four blades. The four blades have a neutron absorber-filling region that neutron absorber is held, respectively. In the structure element, a plurality of regions formed in an axial direction of the control rod include a first region having a first cross-section that forms a first united cruciform cross-section of the four blades connected one another, a second region having a second cross-section that has each separated cross-section of the four blades, and a third region having a third cross-section that has a second united cross-section of continuous two blades of the four blades, disposed in a diametrically opposite direction and facing each other and each separated cross-section of remaining two blades of the four blades, disposed perpendicularly to the continuous two blades. The first region is disposed in an upper end portion and a lower end portion of the structure element, respectively. The third region is disposed between the first regions. The second regions are disposed between the first regions exclusive of the third region. | 03-17-2011 |
| 20110073219 | METHOD FOR IMPROVING RESIDUAL STRESS IN PIPE AND APPARATUS - An method for converting tensile residual stress on an inner surface of a welded part of a pipe to compressive residual stress with use of ice plugs formed by cooling the pipe from the outer surface, comprises the steps of: placing refrigerant containers for forming the ice plugs in the upstream and downstream of a butt-welded part; cooling the outer surface of the pipe to form the ice plugs; and then cooling the outer surface of the pipe with use of at least one refrigerant container for expanding the pipe arranged between the refrigerant containers for forming the ice plugs. When the method is applied to a pipe with a large inside diameter, the method comprises forming the ice plugs at a curved pipe, an elbow or a branch pipe in the upstream and downstream of the butt-welded part. | 03-31-2011 |
| 20110091002 | UNDERWATER REMOTE INSPECTION DEVICE AND METHOD FOR UNDERWATER REMOTE INSPECTION - An underwater remote inspection device is provided with an etching device and a magnifying observation device mounted to a supporting member. A chamber of the etching device is provided with a negative electrode, a positive electrode and a sealing device, and is connected to an etchant supply pipe and an etchant exhaust pipe. A single pair of annular sealing members of the sealing device is provided to a distal end portion of the chamber. A suction passage formed in the side wall of the chamber communicates to a sealing region formed between the sealing members. The magnifying observation device is provided with a magnifying camera in a waterproof container and a plurality of LED lights are installed to the waterproof container. The underwater remote inspection apparatus can prevent leakage of an etchant and reduce execution time of etching. | 04-21-2011 |
| 20110114507 | ELECTROLYTICALLY ETCHING METHOD AND APPARATUS OF SURFACE OF NUCLEAR REACTOR CORE INTERNALS - Even a site having a complicated curved surface shape, such as a welded spot on a bottom of a nuclear reactor core, is simply and electrolytically etched without discharging an etching liquid in a large amount, whereby grain boundary on the surface of the nuclear reactor core internals can be confirmed visually. | 05-19-2011 |
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| 20090137216 | ELECTRONIC COMMUNICATION DEVICE AND METHOD OF OPERATING TELEPHONE DIRECTORY LIST IN THE SAME - The present invention avoids taking much time for finding a person who speaks in a lot of numbers out of a telephone directory list of a mobile phone in a step of starting PTT communication. The device for receiving data receives voice signals from other mobile phones through a server. The device for controlling speaker's voice output outputs speaker's voice to a speaker, and further outputs his/her name to a display unit. The device for counting up a number of speeches counts up a number of speeches made by each of speakers stored in a telephone directory list. The device for terminating PTT communication terminates PTT communication. The device for re-arranging a telephone directory list re-arranges persons recorded in the telephone directory list, in accordance with a number of speeches. | 05-28-2009 |
| 20090233561 | PORTABLE TERMINAL APPARATUS, ITS CONTROL METHOD, AND PROGRAM - A portable terminal apparatus that can automatically acquire a right to talk is provided. The portable terminal apparatus comprises storage means | 09-17-2009 |
| 20090264085 | PORTABLE TERMINAL DEVICE, DISPLAY METHOD FOR LIST OF PARTICIPANTS USED THEREIN, AND PROGRAM FOR THE SAME - A participant list display method is provided in which, when referring to status and details of a participant with many utterances, it is possible to reduce effort required in page turning or scrolling operations. In step S | 10-22-2009 |
| 20110128233 | TERMINAL DEVICE, AND BACK LIGHT EMITTING METHOD AND PROGRAM IN MOBILE TERMINAL OF THE DEVICE - By helping key input using a key backlight of a terminal apparatus to improve operability of the terminal apparatus. | 06-02-2011 |
