Fujitsu Corporation

Kazunari Fukagawa

Hideaki Matsumoto

Yasuhiro Teshima

Koichi Namimatsu

Hiroyuki Shouyama

Kazunori Omori

Yoshiyuki Nakayama

Masahiko Kondo

Kouji Kanou

Eiji Ogata

A first wiring pattern formed on a first layer of a multilayer wiring substrate, a second wiring pattern formed on a layer different from the first layer on which the first wiring pattern is formed, a penetration hole penetrating the front surface and the back surface of the substrate, and a penetration hole penetrating a front surface and a back surface of the substrate; and a fitting connector having a conductor part on a side surface inscribed in the penetration hole and fitting into the penetration hole are provided. The first wiring pattern and the second wiring pattern are exposed from the internal surface of the penetration hole, and the fitting connector connects a first end part of the conductor part and a second end part with an exposed part of the first wiring pattern and an exposed part of the second wiring pattern, respectively.

Multilayer wiring substrate

A release auxiliary device () includes a base member () fixedly provided with respect to a receptacle (), and an auxiliary lever () provided in an elastically deformable manner with respect to the base member (). The auxiliary lever () has a base part () extending to the base member (), a pressing part that extends to the base part and is touchable to an end portion of a lever (), and an operating part () that extends to the pressing part and is disposed at a position closer to the body of the plug than the end portion of the lever is. By operating the operating part () with fingers, the pressing part () presses against the end portion of the lever () and moves the same, so that the engagement between engaging portions () for retention can be released.

Retention release auxiliary device for optical connector and printed circuit board device

A press-fit pin connection checking method using a first printed circuit board having a plurality of through holes in which a plurality of press-fit pins of a first press-fit connector are adapted to be respectively press-fitted, and a checking conductor pattern formed so as to be electrically insulated from all of the through holes and to, surround all of the through holes for engagement with the first press-fit connector. The press-fit pin connection checking method includes the steps of mounting the first press-fit connector on the first printed circuit board, providing a checking jig having a second printed circuit board and a second press-fit connector mounted on the second printed circuit board, engaging the second press-fit connector of the checking jig with the first press-fit connector, and selectively connecting the checking conductor pattern of the first printed circuit board to output lands of the checking jig.

Press-fit pin connection checking method and system

Growing community of inventors

Fukuoka, Japan

Kazunari Fukagawa