Kabushiki Kaisha Toshiba

Other

Toshihiro Yasuda

Jun Suzuki

Yuji Yamada

Satoshi Yamamoto

Hajime Mori

Kunihiko Kinugasa

Takuya Uehara

Hiromi Kato

Yoshiaki Ono

Hidekazu Sasaki

Haruhiko Hata

Kazuo Sudo

Masakazu Abura

Yasushi Kanazawa

Toshiaki Sugimura

Hirotaka Nakano

Yoichi Masuda

Hiroshi Inaba

Masaji Katagiri

Yuki Minato

Yuichi Motora

Tohru Ishikawa

Tadahiro Mitsuhashi

Tsutomu Akasaka

Toshiaki Chai

An apparatus for reinforcing a jet pump riser includes: an elbow upper clamp for covering a riser elbow coupled to a thermal sleeve from an upper side thereof; an elbow lower clamping member for clamping the riser elbow from a lower side thereof; an elbow vertical portion clamping member for covering a vertical portion of the riser elbow; and an elbow horizontal portion clamping member for covering a horizontal portion of the riser elbow. These members are disposed in different orientations with respect to the elbow upper clamp so as to fix the thermal sleeve, the riser elbow and the riser pipe.

Apparatus and method for reinforcing jet pump riser

In a jet pump measurement pipe repair method according to the present embodiment, a breakage part of a measurement pipe horizontally fixed to a lower part of a jet pump provided in reactor water in a reactor pressure vessel is repaired. The method has: a step of cutting and removing the measurement pipe including the breakage part; a step of retaining a connection pipe for connecting the remaining measurement pipe on the jet pump by means of a clamp; and a step of connecting ends of the remaining measurement pipe by means of the connection pipe.

Jet pump measurement pipe repair method

A maintenance/repair device for reactor internal structureof the present invention includes a device bodyconfigured to be fixed on a reactor internal structure. Connected to the device bodyis a welding-part repair mechanismconfigured to repair a welding partof the reactor internal structure. Thus, a welding partof the reactor internal structurecan be repaired by the welding-part repair mechanism, while the device bodyis fixed on the reactor internal structure

Maintenance/repair device for reactor internal structure

Maintenance and repair device for structure inside nuclear reactor

There are provided a device and method for enabling entry of handwritten data, such as a signature, without use of an electronic tablet. In step S-, a user affixes a signature by means of moving a pen devicein midair. In step S-, camera meansphotographs the pen deviceand outputs the resultant image data. In step S-, coordinate computation meansdetermines coordinates of a pen tip of the pen meanson a screen on the basis of the image data (motion picture data), thereby determining signature data. In step S-, comparison verification meanscompares and verifies the thus-determined signature data with reference data. If a similarity exists between the signature data and the reference data, there is output an authentication result showing 'authentication of verification.' Thus, personal identification can be effected on the basis of the signature data written by the user in midair.

Handwritten data input device and method, and authenticating device and method

A TIG welding method is usually carried out in a manner that a tungsten electrode is inserted into a weld groove portion of a member to be welded, an electric voltage is applied to a current conducting portion provided for the tungsten electrode while flowing a shield gas means to thereby generate an arc between the tungsten electrode and the member to be welded to form a molten pool of the member, a welding wire is inserted into the molten pool, and a welding torch is then operated to perform a welding process. In the improvement of the TIG welding method, the shield gas means is composed of an inner shield gas flowing from a periphery of the tungsten electrode to a front end thereof inserted into the weld groove portion of the member to be welded and an outer shield gas flowing towards the weld groove angle from an outside of the inner shield gas to prevent the molten pool from being oxidized and to prevent oxygen in air from being involved. The TIG welding torch for carrying out the method is specifically provided with the inner and outer shield gas flow means, and further provided with a central shield gas flow means.

TIG welding method and welding torch therefor

Growing community of inventors

Yokohama, Japan

Toshihiro Yasuda