Abstract: A flexible printed board includes a base material, first conductive pads arranged along an imaginary line on the base material and extending with a first width from front end to rear end on a front side of the imaginary line, second conductive pads arranged along the imaginary line and extending with a second width from front end on a rear side of the imaginary line to rear end, first wiring patterns provided between the second conductive pads, and extending with a third width to front end connected to the rear ends of the first conductive pads, and a reinforcing layer for reinforcing a reinforcing area over the first conductive pads and the first wiring patterns, and having a front edge on a front side of rear ends of the first conductive pads and a rear edge on a rear side of the rear ends of the second conductive pads.

Abstract: A printed circuit board includes a mounted a first electronic component. The printed circuit board includes a first through holes extending from a mounting surface on which the electronic component is mounted The printed circuit board includes a second through holes extending from a surface opposite the mounting surface and aligned with the first through holes. A second electronic component may be longitudinally between the first through holes and the second through holes. The first and second through holes may be electrically connected with the second electronic component.

Abstract: Terminal pads are arranged on a first surface of the substrate for an electronic component to receive terminals of the electronic component. An electrically-conductive film is formed on a second surface defined on the back of the first surface over the back of a mounting area for the electronic component. The mounting area is contoured along the outer periphery of the arrangement of the terminal pads. The ratio of the area of the electrically-conductive material to the area of the surface of the substrate over the back of the mounting area is set appropriate to the ratio of the area of the electrically-conductive material to the area of the surface of the substrate over the mounting area for each electronic component. This results in suppression of flexure of the printed wiring board during reflow.

Abstract: In a portable communication apparatus of the invention, an inner wall (22) of an openable/closable member (2) faces the front face of a diaphragm of a close-talking microphone (5) via a sound path (64), and an outer sound hole (27) faces the rear face of the diaphragm of the close-talking microphone (5) via a sound path (65). An inner sound hole (26) is biasedly located in a position which is close to a free end of the openable/closable member (2), and the outer sound hole (27) is biasedly located in a position which is close to the center position of opening and closing movements of the openable/closable member (2), thereby obtaining a speech quality of a very high S/N ratio at a substantially same degree in both the cases where the openable/closable member (2) is opened, and where the member is closed.

Abstract: In a portable communication apparatus of the invention, an inner wall (22) of an openable/closable member (2) faces the front face of a diaphragm of a close-talking microphone (5) via a sound path (64), and an outer sound hole (27) faces the rear face of the diaphragm of the close-talking microphone (5) via a sound path (65). An inner sound hole (26) is biasedly located in a position which is close to a free end of the openable/closable member (2), and the outer sound hole (27) is biasedly located in a position which is close to the center position of opening and closing movements of the openable/closable member (2), thereby obtaining a speech quality of a very high S/N ratio at a substantially same degree in both the cases where the openable/closable member (2) is opened, and where the member is closed.

Abstract: A tool attachment assembly having a housing with a central axis, a toolholder with a tool carrying portion and a mounting portion spaced axially from the tool carrying portion, a projection on one of the housing and mounting portion of the tool holder, and a receptacle on the other of the housing and mounting portion of the tool holder for receiving the projection so that the housing and the tool holder reside at least partially, one within the other, with the tool holder in an operative state on the housing. There are axially facing first and second surfaces, one each on the housing and the mounting portion of the tool holder, that extend at least partially around the central axis and are abuttable to each other to limit movement of the tool holder axially towards the housing with the tool holder in the operative state. At least one of the first and second surfaces is other than parallel to a plane that is orthogonal to the central axis.

Abstract: A machine tool having a frame, a turret on the frame having a spindle for holding an operating tool, structure on at least one of the frame and turret for operating the spindle to effect machining of a workpiece by an operating tool held by the spindle, and first structure on at least one of the frame and turret for communicating fluid in a flow path from a pressurized supply to a workpiece to be machined by an operating tool held by the spindle to effect deburring/washing of the workpiece.