Abstract: Irradiation with a laser beam is performed along a welding bead, while the laser beam is aimed, as an irradiation point of the laser beam, at a contact point between a deck plate and a U-rib that is contained in a non-welded portion of a root part, from a side of the welding bead of the root part. Thereby, it is possible to remove a crack beginning at the non-welded portion of the root part generated at a joining portion between the deck plate and the U-rib of a steel floor slab, by the irradiation with the laser beam.

Abstract: A user terminal device stores user information in a memory, and stores constant data in another memory. The user terminal device selects one or more other equipment to be combined suitably for use with the service equipment, based on the model information and operational conditions of the service equipment as well as the stored constant data. Then, the user terminal device transmits the user information and the selection information to the host computer, and requests display permission from the host computer for displaying the selection information onto the display section. The selection information is displayed on the display section only when the display permission is obtained from the host computer. Thus, workload on the host computer end may be reduced. In addition, the host computer does not fail to obtain the user information.

Abstract: The present invention provides a combined equipment selection system which is capable of reducing the load on the host computer and securely obtaining the user information. A user terminal device 1 comprises a user information memory means 13 for storing the user information, a constant data memory means 14 for storing constant data, a combined equipment selection means 15 and a selection information display control means 16. The combined equipment selection means 15 carries out a selection operation which selects one or more other combined equipment different from the service equipment and suitable for being combined with a service equipment, based on the model information and operational conditions of the service equipment as well as the constant data stored in the constant data memory means.

Abstract: A plasma display panel (PDP), consisting of a front panel (10) equipped with display electrodes (8) and a rear panel (4) equipped with address electrodes (3), that displays an image by causing discharge in a small discharge space formed between the two panels; wherein there are provided two layers of protective films (5, 6), made of metallic oxide, covering the dielectric layer (7) installed on the front panel (10); the outer, upper layer (6) being formed into a layer of material with a specific surface area of 20 m2/g or more and a film thickness of 1 &mgr;m or less, exhibiting a high discharge characteristic; and the inner, lower layer (5) being formed into a layer of material with a specific surface area of 10 m2/g or less and a film thickness of 1 &mgr;m or more, exhibiting a low water-adsorption characteristic.

Abstract: There is provided a plasma display panel (PDP), consisting of a front panel (10) equipped with display electrodes (8) and a rear panel (4) equipped with address electrodes (3), that displays an image by causing discharge in a small discharge space formed between the two panels; wherein there are provided two layers of protective films (5, 6), made of metallic oxide, covering the dielectric layer (7) installed on the front panel (10); the outer, upper layer (6) being formed into a layer of material with a specific surface area of 20 m2/g or more and a film thickness of 1 &mgr;m or less, exhibiting a high discharge characteristic; and the inner, lower layer (5) being formed into a layer of material with a specific surface area of 10 m2/g or less and a film thickness of 1 &mgr;m or more, exhibiting a low water-adsorption characteristic.

Abstract: A CAD generation management system is provided with a storage section to store file information in units of generations, an inter-file correspondence table to store corresponding relationships of the file information stored in the storage, including generation information, an icon storage to store icon data corresponding to the file information, and a unit to display relationships of the file information corresponding to the icon data by referring to the inter-file correspondence table and the icon storage and displaying the icon data of the file information stored in the storage section in units of generations.

Abstract: In a plasma display panel of AC type, consisting of a front panel 9 provided with display electrodes 7 and a rear panel 4 provided with address electrodes 3, that displays an image by causing discharge in the discharge gas space formed between the front panel 9 and rear panel 4, a protective film 5 made of metallic oxide covering a dielectric layer 6 placed on the front panel 9 is formed as follows. The protective film 5 is formed into a structure where columnar structures are densely packed, closely with each other, extending perpendicularly to the interface between the dielectric layer 6 and the protective film 5, and more than 400 columnar structures are formed per the substrate area of 1 &mgr;m2.

Abstract: The width of a signal line 3 is made narrower at a part connected with a connector pin 1 than a signal line width that can match the connector characteristic impedance. Furthermore, the width of the signal line 3 is made narrower at the part connected with the connector pin 1 than the projection width of the connector pin diameter. The disclosed connection structure of a planer waveguide signal line can, when a high frequency signal is transmitted from a rod-shaped coaxial structure to the signal line, prevent the transmissivity deterioration caused by radiation of the signal or reflection of the signal back to the outgoing side at the part of the signal line connected with a connector pin. The connection structure can also minimize transmission loss due to assembling error made during assembling into a semiconductor package.

Abstract: There is provided a plasma display panel (PDP), consisting of a front panel (10) equipped with display electrodes (8) and a rear panel (4) equipped with address electrodes (3), that displays an image by causing discharge in a small discharge space formed between the two panels; wherein there are provided two layers of protective films (5, 6), made of metallic oxide, covering the dielectric layer (7) installed on the front panel (10); the outer, upper layer (6) being formed into a layer of material with a specific surface area of 20 m2/g or more and a film thickness of 1 &mgr;m or less, exhibiting a high discharge characteristic; and the inner, lower layer (5) being formed into a layer of material with a specific surface area of 10 m2/g or less and a film thickness of 1 &mgr;m or more, exhibiting a low water-adsorption characteristic.

Abstract: There is provided a plasma display panel (PDP), consisting of a front panel (10) equipped with display electrodes (8) and a rear panel (4) equipped with address electrodes (3), that displays an image by causing discharge in a small discharge space formed between the two panels; wherein there are provided two layers of protective films (5, 6), made of metallic oxide, covering the dielectric layer (7) installed on the front panel (10); the outer, upper layer (6) being formed into a layer of material with a specific surface area of 20 m2/g or more and a film thickness of 1 &mgr;m or less, exhibiting a high discharge characteristic; and the inner, lower layer (5) being formed into a layer of material with a specific surface area of 10 m2/g or less and a film thickness of 1 &mgr;m or more, exhibiting a low water-adsorption characteristic.

Abstract: Provided in a plasma display panel having a protective film for electrodes improved in secondary electron emission characteristics.

Abstract: In a plasma display panel of AC type, consisting of a front panel 9 provided with display electrodes 7 and a rear panel 4 provided with address electrodes 3, that displays an image by causing discharge in the discharge gas space formed between the front panel 9 and rear panel 4, a protective film 5 made of metallic oxide covering a dielectric layer 6 placed on the front panel 9 is formed as follows. The protective film 5 is formed into a structure where columnar structures are densely packed, closely with each other, extending perpendicularly to the interface between the dielectric layer 6 and the protective film 5, and more than 400 columnar structures are formed per the substrate area of 1 &mgr;m2.