Fujitsu Corporation

Takehide Miyazaki

Akira Okada

Katsumi Kanasaki

Hirofumi Imabayashi

Kazuya Nishida

Hideaki Yajima

Naoya Yamazaki

Tomoyuki Hongoh

Kazuhiro Iino

Yoshinori Hoshino

Yoshiaki Tada

A connector includes: a press-fit pin including a press-fit portion configured to be press-fitted into a through-hole of a circuit board and a pressed portion configured to be coupled to the press-fit portion and receive a pressing force for press-fitting the press-fit portion into the through-hole; and a press-fit member including a through-hole configured to removably hold the press-fit pin and a pressing portion configured to transfer the pressing force to the pressed portion of the press-fit pin held in the through-hole such that the press-fit portion protrudes.

Connector

A pump includes: an impeller that moves fluid; a housing section, provided adjacent to a channel for the fluid, that communicate with the channel; and a controller that positions the impeller in the channel during a driving of the impeller and houses the impeller in the housing section during a stoppage of driving of the impeller.

Pump, pump system, method of controlling pump, and cooling system

A heat radiator capable of thermally connect to a heat element includes a pair of heat conducting plates conducting heat from one side surface to other side surface of the heat conducting plate, respectively, the pair of heat conducting plates having a space between each of the heat conducting plates; and a radiation fin arranged between the pair of heat conducting plates, having elastic characteristics between the pair of heat conducting plates, and radiating heat from the heat conducting plate to the space.

Heat radiator

A power feed device for an electrical component which improves the quality of transmission and reduces the mounting density of a printed circuit board in the power feed device or reduces the thickness of the printed circuit board and thereby realizes smaller size, provided with a power supply for supplying power, a printed circuit board having built-in signal line patterns, and a power bar having conductive projections provided in shapes and at positions corresponding to the shapes and positions of electrodes of the electrical component and provided outside of the printed circuit board, power from the power supply being supplied through the conductive projections of the power bar to electrodes of the electrical component.

Power feed device to power pins of electrical component

A connector for electrically connecting with a first circuit board and a second circuit board, the connector includes a female connector and a male connector. The female connector includes a housing, a moveable side electrode capable of moving in the housing and an elastic member biasing the moveable side electrode, the moveable side electrode having a recess. The male connector includes a projection with a tip end being fitted into the recess of the moveable side electrode.

A built-in capacitor type power feed device for an electrical component which solves the problems of the reduction in the noise margin of the power supply system accompanying the lower drive voltages of electrical components and the noise between the power supply and ground accompanying simultaneous switching waveforms, provided with a power supply for supplying power, a printed circuit board including a signal line pattern, a power bar having conductive projections provided in shapes and at positions corresponding to the shapes and positions of electrodes of the electrical component and provided outside of the printed circuit board, a ground bar provided outside of the printed circuit board, and a high dielectric layer provided at a part corresponding to the electrical component between the power bar and the ground bar, power from the power supply being fed to electrodes of the electrical component through the power bar and the ground bar.

Built-in capacitor type power feed device to power pins of electrical component

A telecommunications apparatus that has a substantially box-shaped subrack having a back wiring board mounting a connector and a plurality of shell-type plug-in units inserted in the subrack so that a connector of each of the plug-in units is connected to the connector of the subrack, further includes a flexible, electrically conductive seal member elastically deformedly disposed between a lateral surface of the plug-in unit inserted into the subrack and an interior portion of the subrack so as to enclose both the plug-in unit connector.

Telecommunications apparatus and plug-in unit for same

A capacitor sheet comprises a plurality of first capacitor blocks connecting signal/power supply electrodes of two circuit boards with through-hole electrodes, and having grounding electrodes sandwiching dielectrics around the through-hole electrodes, and a plurality of second capacitor blocks connecting the grounding electrodes in two circuit boards with the through-hole electrodes, and having the grounding electrodes sandwiching the dielectrics around the through-hole electrodes, wherein the through-hole electrodes and the grounding electrodes are connected with pattern wirings. The capacitor blocks are arranged so that the grounding electrodes in the first capacitor blocks are electrically connected to the grounding electrodes of the second capacitor blocks to be combined to a single piece.

Growing community of inventors

Kawasaki, Japan

Takehide Miyazaki