Nitto-denko Corporation

Fuyuki Eriguchi

Toshihiko Sugimoto

Katsuhiko Tachibana

Seiichi Watanabe

Hideki Akamatsu

Yuki Kagehisa

Mamoru Kawahara

A steel plate reinforcing sheet that can reduce distortions of the steel plate without reducing its reinforcing property and can also prevent abrupt deformations at end portions thereof with respect to a direction extending along a curving direction of a curved steel plate. The steel reinforcing sheet features a generally rectangular shape, as defined by a length and a width, and two end portions on either side of an imaginary line which bisects the length of the steel plate reinforcing sheet. The steel plate reinforcing sheet is a laminate including a restricting layer and a reinforcing layer, wherein each end portion of the restricting layer includes at least one slit. Each slit extends directly or indirectly across the entire width of the steel plate reinforcing sheet, and the two slits closest to the imaginary line define a minimum distance between slits. The minimum distance is parallel to the length of the steel plate reinforcing sheet and equivalent to 40% or more of the length of the steel plate reinforcing sheet.

Steel plate reinforcing sheet

In order to provide a surface shape measuring apparatus and a surface shape measuring method capable of detecting a distortion on the curved surface of a work precisely, a laser displacement meterdisposed to the outside surface of a door panelof a curved shape at a confronting position, a Z-axis servo motorto move the laser displacement meteralong the top-and-bottom direction with respect to the outside surface of the door panel, an X-axis servo motorto move the laser displacement meteralong the left-and-right direction, and a Y-axis servo motorto move the laser displacement meteralong an confronting direction in which the laser displacement meterand the outside surface of the door paneloppose each other, are provided, and a CPUcontrols the Y-axis servo motorin such a manner that a constant distance is maintained in the confronting direction between the laser displacement meterand the outside surface of the door panel

Surface shape measuring apparatus and surface shape measuring method

A reinforcement for a flexible printed circuit board, which can sufficiently prevent the flexible printed circuit board thus reinforced from being warped when heated during the assembly process of electronic components or other procedures. The reinforcement according to the present invention is used to adhere to a flexible printed circuit board 1. The reinforcement according to the present invention comprises an internal material 21 having a bending neutral surface at the center of the thickness thereof, and an external material 22 having the same Young's modulus as that of an insulating substrate 11 of the flexible printed circuit board 1, bonded to one side of the internal material 21. The other side of the internal material 21 acts as an adhesive surface to the flexible printed circuit board 1.

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Osaka, Japan

Fuyuki Eriguchi