Kabushiki Kaisha Toshiba

Fujitsu Corporation

Shimizu Construction Co., Ltd.

Hiromi Kato

Takuya Uehara

Yoshio Hamamoto

Satoshi Okada

Masaki Yoda

Masataka Tamura

Yoshiaki Ono

Toshihiro Yasuda

Wataru Kono

Hidekazu Sasaki

Hideki Takahashi

Yuji Saito

Osamu Yamaguchi

Akira Kikuchi

Masahiro Takeuchi

Takeshi Maehara

Yusuke Yamazaki

Isamu Watanabe

Hiroyuki Miyasaka

Masao Inoue

Kazuo Misue

Yoshinobu Makino

Katsunori Shiihara

Masato Honda

Hiroshi Hatakama

Yuuichi Motora

Toshihiko Fushimi

Masaki Iwamoto

Masakazu Abura

Mitsuaki Watanabe

Kouichi Tsuzuki

Taiji Kobayashi

Teruo Fukunaga

Junko Fukatsu

Takashi Kunugi

Tateo Yokozawa

Manabu Akimoto

Masaru Sukagawa

Tomonori Inokoshi

Masataka Abe

Teruyuki Suzuki

Yoshimi Tanaka

Junichi Wako

Tatsuya Ishigaki

An underwater welding apparatus includes: an underwater welding head provided underwater and having, at its leading end, a nozzle section from which laser light is emitted; a shied cover formed of an elastic member and provided around the nozzle section so as to form, at the leading end of the underwater welding head, a space where water is excluded by shield gas; and an expansion/contraction member having a discharge hole for discharging water and shield gas containing metal dust particles from an inside of the shield cover, the discharge hole being increased in diameter as pressure inside the shield cover rises, while being reduced in diameter as the pressure inside the shield cover falls.

Underwater welding apparatus and underwater welding method

A heating laser beam is emitted to a cracked portion to remove moisture from the cracked portion, and subsequently, a welding laser beam is emitted to the cracked portion to heat and melt the cracked portion. The heating laser beam and the welding laser beam are emitted to an entire surface of the cylindrical body inside the reactor such as a stub tube penetrating through and fixed to a reactor bottom portion and a crack of the welded portion between the cylindrical body and the reactor bottom portion to thereby prevent a new crack from occurring and reactor water from leaking.

Reactor bottom repairing 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

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.

Surface crack sealing method

Maintenance and repair device for structure inside nuclear reactor

In a method for providing information on commodities to a user by using a computer, commodity-comparison information indicating at least one result of at least one comparison between the commodities is acquired and stored. Next, a commodity-comparison map which visually indicates at least one relationship between the commodities is produced by using the commodity-comparison information stored above, in such a manner that at least one coordinate axis of the commodity-comparison map corresponds to at least one evaluation criterion used in evaluation of the commodities, respectively. Then, relative-evaluation information which indicates at least one relative evaluation of the commodities is produced by using the commodity-comparison map. Finally, the relative-evaluation information is provided to the user.

Method and apparatus for providing relative-evaluations of commodities to user by using commodity-comparison map

An interactive data analysis support apparatus for supporting the analysis of data comprises: a cross tabulation display device for displaying according to specified summing up conditions a cross tabulation in which data to be analyzed is cross summed up, a cell specifying device for specifying at least one cell among a number of cells constituting the cross tabulation, and a graph display device for displaying the data to be analyzed as a graph within the range of the cell specified by the cell specifying device.

Interactive data analysis support apparatus and media on which is recorded an interactive data analysis support program

When an operator inputs a unit retrieval condition and a logic symbol, a condition input section stores them in a condition storage section. A condition display section displays them alternately one after another on a display device. When the operator inputs specific information for specifying the logic symbol among the displayed logic symbols for which a priority-given retrieval based on the unit retrieval conditions displayed ahead and behind the logic symbol should be performed, a condition operating section raises the priority order of the logic symbol in the condition storage section in accordance with the specific information. The condition display section performs a specific distinguishing display on the logic symbol, indicated by the accepted specific information, and the unit retrieval conditions displayed ahead and behind the logic symbol to distinguish them from other unit retrieval conditions and logic symbols. When the operator operates an execution key, a condition building section logically builds a data retrieval condition for retrieving data from a database, from the input unit retrieval conditions, the logic symbols and the specific information.

Data retrieval condition setting method

A work management system has input means having a function of inputting coordinate information from the surface of a panel, output means having a function of projecting electronic information onto the panel, and data processing means for executing a predetermined processing, e.g., preparation and input processing of a form, a chart or a drawing, retrieval, editing, totalization, etc., by establishing a correspondence between the information projected on the panel by using the output means and the coordinate information input from the input means. The data processing means displays a list of registered items to be designated in a window for selection of one of the items, whereas, when coordinate information is input from two points for an entry column for time setting, the data processing means draws a bar between the two points. Control information which is conformable to working hours of equipment at a work site, e.g., temporary lighting equipment, is generated by a preliminary arrangement system employing an electronic board, and the control information is transferred to a supervisory control system to effect supervisory control of the equipment on the basis of the control information.

Work management system employing electronic board

Growing community of inventors

Yokohama, Japan

Hiromi Kato