Canon Kabushiki Kaisha

Shunichi Haga

Hiroshi Kondo

Takashi Sakaki

Tetsuo Yoshizawa

Yasuteru Ichida

Masaki Konishi

Yoshimi Terayama

Hideyuki Nishida

Ichiro Shimizu

Yoshimi Tarayama

A transformer including a bobbin formed by uniting a winding member, which has a primary winding and secondary winding and a bore formed thereon and therein, with a primary winding fixture and secondary winding fixture adjoining the openings of the bore, and a ferromagnetic core having a core portion thereof inserted into the bore and including an enclosure for enclosing the windings is manufactured according to a process including an affixing step of firmly affixing both or either of the primary winding fixture and secondary winding fixture to the ferromagnetic core, an impregnation step of impregnating the transformer with a varnish, and an applying step of applying adhesives. A components-mounted substrate is incorporated in a housing to be immobilized and locked in a direction parallel to the components-mounted surface thereof, in which when an impact load is imposed in a direction substantially orthogonal to the components-mounted surface, the components-mounted substrate is displaced by a given magnitude in order to absorb an impact, and in which a displacement whose magnitude is equal to or larger than the given magnitude is restrained in order to disperse the load.

Transformer assembling method, transformer, transformer-mounted substrate, power supply unit having transformer-mounted substrate, and recording apparatus including power supply unit

Transformer assembling method, transformer, transformer-mounted

An electric circuit apparatus comprises an electrically connecting member including a holding body made of an electrically insulating material and a plurality of electrically conductive members embedded in the holding body. First end portions of the electrically conductive member extend through a first side of the holding body and second end portions of the electrically conductive member extend through the other side of the holding body. A plurality of electric circuit components are connected to the second end portions of the electrically conductive members.

Electric circuit apparatus

A method of producing an electrical connection member includes the steps of applying a carrier containing a light-sensitive resin onto a substrate member, forming holes in portions of the carrier to form a pattern and expose the substrate member in the holes, filling each hole in the carrier with an electrically conductive member, and removing the substrate member from the carrier. With this method, it is possible to easily produce electrical connection members in which high density electrical connecting portions can be provided and in which the reliability and security of electrical connections can be improved.

Method of producing electrical connection members

An electric circuit device comprises an electric connecting member comprising a support member made of an electrically insulating material and a plurality of electrically conductive members buried in the support member and being isolated from one another. The ends of one side of the electrically conductive members are exposed at one surface of the support member, and the ends on the other side of the electrically conductive members are exposed at another surface of the support member. A first electric circuit component has connecting regions connected to the one set of ends of the electrically conductive members, and a second electric circuit component has connecting regions connected to the other set of ends of the electrically conductive members. Some of the electrically conductive members can be arranged in a zigzag pattern, and the pattern of the exposed ends of at least one electrically conductive member is wave-like or S-like.

Electric circuit device having an electric connecting member and

A method of producing electrical connection members includes the steps of forming a carrier on a first electrically conductive member, etching holes in portions of the carrier to expose first electrically conductive member in the holes, and etching the portions of the first electrically conductive member which are exposed in the respective holes to form recesses in the first electrically conductive member so that each of the recesses has a diameter larger than the diameter of a corresponding one of the holes. The respective holes formed in the carrier are filled with second electrically conductive members, and then the first electrically conductive member is removed from the carrier. With this method, it is possible to easily produce electrical connection members in which high density electrical connecting portions can be provided and in which the reliability and security of electrical connections can be improved.

Growing community of inventors

Yokohama, Japan

Shunichi Haga