Nec Corporation

Tbk Co., Ltd.

Satoshi Nagao

Yoshinori Watanabe

Hiroshi Kajitani

Yoshimi Kubo

Takashi Manako

Yasutaka Kono

Tsutomu Yoshitake

Keisuke Shinozaki

Hidekazu Kimura

Takeshi Hoji

Eiji Akiyama

A casing with housing space for retaining a first gear and a second gear in a condition where the tooth tips and both side surfaces slide, comprises a main casing which retains the first gear in a manner which allows rotation but restricts movement in the axial direction, and a gear holder which can move in the rotating shaft direction in the main casing and which rotatably retains the second gear. The main casing contains a biasing member which applies a biasing force to bias the gear holder to one side in the rotating shaft direction, and a piston which is acted on by hydraulic pressure and presses the gear holder on the other end side in the rotating shaft direction to counteract the biasing force. The gear holder is acted on by the hydraulic force from the piston to counteract the bias from the biasing member and moves in the rotating shaft direction according to the hydraulic force so that the engagement width between the first gear and the second gear which is retained by the gear holder is changed.

Gear pump

The operability of a fuel cell which uses a fuel cartridge housing a liquid fuel is improved. A fuel cartridgehouses a liquid fuel. The fuel cartridgeincludes a gas-liquid separation filmwhich divides a fuel housing sectioninto a liquid housing chamberand a gas housing chamber. A fuel gas, which is the vaporized liquid fuel, is housed in the gas housing chamber. A gas exhaust pipeis connected to the gas housing chamber, and the fuel gas housed in the gas housing chamberis discharged to outside the fuel cartridgevia a gas discharge port

Fuel cartridge, fuel cell and portable electrical appliance including fuel cell

When the pressure in a main fluid supply channel is lower than a no-load operation start pressure, the spool moves against the biasing force of a biasing member, and the area of opening of a auxiliary fluid supply channel is reduced with regards to opening of the internal flow channel. When the pressure in the main fluid supply channel rises and reaches a no-load operation start pressure, the area of opening in the auxiliary fluid supply channel with regards to opening of the internal flow channel becomes smaller and while connected to the main fluid supply channel, the auxiliary fluid supply channel is connected to the return flow channel. When the pressure in the main fluid supply channel rises above the no-load operating start pressure and reaches a no-load operation pressure, the auxiliary fluid supply channel is cut off from the main fluid supply channel.

Tandem pump valve structure

A fuel cell () is mounted with a fuel cartridge () in a detachable manner. The fuel cartridge () is provided with a connecting part () and the fuel cell () is provided with a fitting part () into which the connecting part () is fitted. The fuel cell () identifies the fitted fuel cartridge ().

Fuel cell, fuel cartridge and fuel cell system

Growing community of inventors

Tokyo, Japan

Satoshi Nagao