Hitachi Metals, Ltd.

Hitachi Cable, Inc.

Hitachi Consumer Electronics Co., Ltd.

Yamaichi Electronics Co., Ltd.

Hitachi Aloka Medical, Ltd.

Apresia Systems, Ltd.

Yoshinori Sunaga

Yoshiaki Ishigami

Juhyun Yu

Kinya Yamazaki

Hiroki Yasuda

Hidetaka Kawauchi

Kouki Hirano

Akihiro Hiruta

Isao Takahashi

Masataka Sato

Hidenori Yonezawa

Shinichi Inoue

Takahiro Sugiyama

Kenichi Tamura

Ryuta Takahashi

Izumi Fukasaku

Norio Chujo

Koki Hirano

Masahiko Kobayashi

Naoyuki Yamada

Osamu Seya

Hiroki Katayama

Noribumi Kobayashi

Toshiyasu Ito

Takanobu Watanabe

Naoki Matsushima

Hideki Nonen

Yosuke Takai

Yasunobu Matsuoka

Shohei Hata

Hideo Arimoto

Naofumi Chiwata

Hiroshi Ishikawa

Takumi Kobayashi

Toshiaki Takai

Tsuneaki Kawaguchi

Yoshikazu Namekawa

Shinji Komatsuzaki

Kazuo Ishiyama

Akira Ogura

Masataka Satoh

Takehiko Tokoro

Masataka Satou

Osamu Tsuchida

A communication module includes a plug connector provided with upper connection pins and lower connection pins. The upper connection pins and the lower connection pins include signal pins each connected to a signal line arranged in a module board, and ground pins each connected to a ground line arranged in the module board. An opposing interval between a terminal end of a rear end portion of each of the ground pins included in the upper connection pins, and a terminal end of a rear end portion of each of the ground pins included in the lower connection pins is longer than an opposing interval between a terminal end of a rear end portion of each of the signal pins included in the upper connection pins and a terminal end of a rear end portion of each of the signal pins included in the lower connection pins.

Plug connector having signal and ground pins each with a curved and a flat portion arranged on both sides of a board

An optical communication module includes a module board housed in a casing, a VCSEL and a driving IC mounted on a mounting surface of the module board, a lens holder mounted on the mounting surface of the module board, a lens block held by the lens holder, a plurality of thermal vias passing through the module board, and a first fixing screw and a second fixing screw passing through the module board to be screwed into the casing so as to press a back surface of the module board against a bottom surface of the casing, and the first fixing screw and the second fixing screw are each arranged in a region between the plug connector and the lens holder and on either outer side of the lens holder.

Optical communication module

In a transceiver module, where one end of a module substrate is inserted and connected to a concave portion of a plug connector and when one end face of the module substrate is touched to the inner periphery face forming the concave portion, a projection portion formed at the periphery of the concave portion of the plug connector is fitted to a notch portion of the module substrate.

Transceiver module plug connector

A communication module includes a metal housing, a module connector provided at a front surface of the housing, and a light guide which guides light that has gone out from a LED lamp provided on a host board of a communication device and entered interior of a cage through a through hole provided in a bottom surface of the cage. The light guide includes a light incoming portion, a light outgoing portion, and a light guiding portion. The light incoming portion is disposed at a bottom surface of the housing opposed to the bottom surface of the cage, the light outgoing portion is disposed at aback surface of the housing opposed to the front surface, and the light guiding portion extends between the light incoming portion and the light outgoing portion along the bottom surface of the housing.

Communication module

A communication module is further miniaturized to achieve an improvement in the mounting density of the communication module. A communication module includes a plug connector connected to a receptacle connector, and the plug connector has an insertion projection inserted into an insertion recess provided on the receptacle connector. The insertion projection has a board insertion portion into which an insertion end portion of a module board incorporated in the communication module is inserted formed therein, the insertion end portion is inserted into the board insertion portion, and first electrodes formed on the plug connector are electrically connected to the module board.

Communication module and communication module connector

A connector is configured of a plug connector and a receptacle connector. The plug connector has an insertion convex portion including: a first sidewall portion and a second sidewall portion that are in parallel with each other and a plurality of first connection terminals provided on the sidewall portions. The receptacle connector has an insertion concave portion to which the insertion convex portion is inserted and in which a plurality of second connection terminals that are contacted with the first connection terminals are provided. The respective inner side surfaces of the first sidewall portion and the second sidewall portion face each other across a space, and the plurality of first connection terminals are arranged on the respective outer side surfaces of the first sidewall portion and the second sidewall portion.

A photoelectric conversion module includes: a photoelectric conversion element and an IC chip mounted on a mounting surface of a substrate; and an electrode provided on a side surface of the substrate, electrically connected to the IC chip, and having a concave shape sunk deeper than other portions of the side surface of the substrate.

Photoelectric conversion module and method of manufacturing photoelectric conversion module

A noise suppression cable includes an insulated wire, an internal magnetic tape layer including a resin layer and a magnetic material layer formed on one surface of the resin layer, the internal magnetic tape layer being spirally wound on a periphery of the insulated wire in a first direction along a longitudinal direction of the cable so as to allow the magnetic material layer of the internal magnetic tape layer to face outside, and an external magnetic tape layer including a resin layer and a magnetic material layer formed on one surface of the resin layer, the external magnetic tape layer being spirally wound on a periphery of the internal magnetic tape layer in a second direction different from the first direction along the longitudinal direction of the cable so as to allow the magnetic material layer of the external magnetic tape layer to face inside.

Noise suppression cable

A communication module including a latching protrusion and an operating unit for operating the latching protrusion and easily accessing the operating unit even in the case of high-density mounting is achieved. The communication module includes a case including a plug connector which is inserted into/pulled out from a receptacle connector provided on a motherboard, a latching protrusion which has a variable protrusion length from the case and which can be latched with and unlatched from a latching hole provided on the motherboard, and an operating unit which moves the latching protrusion toward inside of the case to unlatch the latching protrusion from the latching hole. An operating direction of the operating unit is a direction (X direction) orthogonal to both of an arranging direction of the communication module and other communication module adjacent thereto and an inserting/pulling-out direction of the plug connector.

A communication module includes a plug connector, the plug connector has an insertion projection, the insertion projection has a board insertion portion into which an insertion end portion of a module board is inserted formed therein, a plurality of first adjustment projections are provided on an upper surface of the board insertion portion, and a plurality of second adjustment projections are provided on a lower surface of the board insertion portion. The first adjustment projections and the second adjustment projections are arranged alternately along the width direction of the board insertion portion, the first adjustment projections come in contact with a top surface of the insertion end portion which is opposed to the upper surface of the board insertion portion, and the second adjustment projections come in contact with the back surface of the insertion end portion which is opposed to the lower surface of the board insertion portion.

The present invention achieves a way of mounting plural optical modules onto a wiring board more simply and more densely. There is provided an optical module assembly for mounting plural optical modules onto a wiring board. The optical module assembly includes the optical modules to which optical wiring has been connected and a module case to accommodate the optical modules. The optical modules and the module case are unified. The module case is provided with a floating mechanism for making the optical modules floating, when accommodated therein. The floating mechanism is comprised of plate springs or the like.

Optical module assembly, optical wiring board, and information processing device using them

An optical transmission module includes a first member having a bottom portion, sidewalls and an opening, a second member joined to a sidewall end surface of the first member and sealing the opening, a light-emitting element mounted on an inner surface of the second member, an interconnection formed on the inner surface of the second member and extending inside and outside the first member across the sidewalls of the first member, and electrodes formed on outer surfaces of the sidewalls of the first member. The second member transmits therethrough light outputted from the light-emitting element. One end portion of the electrode is electrically connected to one end portion of the interconnection extending outside the first member. The other end of the electrode is soldered to an interconnection formed on a substrate surface on which the optical transmission module is mounted.

Optical transmission module

A connector includes a plug connector and a receptacle connector. The plug connector has an insertion convex portion including: an end surface; outer side surfaces facing in parallel to each other across the end surface; and a first tapered surface connecting each outer side surface and the end surface. The receptacle connector has an insertion concave portion including: an insertion port; inner side surfaces facing in parallel to each other across the insertion port; and a second tapered surface connecting each inner side surface and an edge of the insertion port. The outer side surfaces of the insertion convex portion have first connection terminals arranged, the inner side surfaces of the insertion concave portion have second connection terminals arranged in contact with the first contact terminals, and the first tapered surface has a width twice as large as a width of the second tapered surface or larger.

An optical module includes a circuit board, a photoelectric conversion element mounted on the circuit board, an optical connector for optically connecting the photoelectric conversion element and an optical fiber, a semiconductor circuit element mounted on the circuit board and electrically connected to the photoelectric conversion element, a pressing member for pressing and fixing the optical connector to the circuit board, and a supporting member for supporting the pressing member. The supporting member includes a heat-absorbing surface and a heat-dissipating surface. The heat-absorbing surface is thermally connected to the semiconductor circuit element. The heat-dissipating surface dissipates heat of the semiconductor circuit element to be absorbed through the heat-absorbing surface.

Optical module

A control computerof a transmission device control systemtransmits a predetermined command to a network switchby using a user interfacefor controlling the network switch, and a controllerof the network switchtransmits a control signal to a controllerof a transmission devicebased on the command from the control computer

Transmission device control system

Growing community of inventors

Hitachinaka, Japan

Yoshinori Sunaga