Japan Aerospace Exploration Agency

Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.

Kyushu Institute of Technology

Kasuga Denki, Inc.

Toho Seisakusho Co., Ltd.

Satoshi Hosoda

Hisao Ogawa

Hitoshi Kuninaka

Nobuo Nomura

Tatsuhito Fujita

Minoru Iwata

Daiki Koda

Tomofumi Mogami

Takato Morishita

Yasumasa Hisada

Mengu Cho

Kazuki Minemura

Yuya Sanmaru

A solenoid device is configured to drive by electromagnetic force a valve unit in an electromagnetic valve provided to a fuel injection system. The solenoid device includes: a cylindrical core; a coil wound around the core; a casing housing the core and the coil and that covers at least one end of the core on one side in an axial direction; a terminal fixing member disposed between the core and the casing in the axial direction to fix a terminal connected to the coil; and a cylindrical member disposed on an inner circumference of the core in a manner of passing through the core and the casing in the axial direction. The cylindrical member has a protrusion that radially protrudes in a direction perpendicular to the axial direction and is held between the casing and the terminal fixing member from both sides in the axial direction.

Solenoid device and electromagnetic valve for fuel injection system

A charge neutralizer that includes a vacuum chamber which is capable of having a charged object installed therein and includes a high vacuum processing unit that performs vapor deposition, and a plasma generator configured to supply plasma caused by an electron cyclotron resonance to an inside of the vacuum chamber. The plasma generator includes a plasma source configured to generate the plasma, and a flange configured to install the plasma source inside the vacuum chamber.

Charge neutralizer and plasma generator

The present invention prevents occurrence of electrical discharge on an electrically conductive structure in an environment in which high-energy electrons impinge onto the structure or on an electronic element mounted to a surface of the structure, which electrical discharge would otherwise occur when the potential of the structure or the electronic element increases in the negative direction due to a negative charge flowing thereinto. An insulating tape bonded to the surface of the electrically conductive structure is partially cut-removed; an electrically conductive adhesive is applied to an exposed portion of the surface of the electrically conductive structure; and an insulating film is bonded to the electrically conductive adhesive, such that the electrically conductive adhesive is exposed to the outside. When encountering higher-energy electrons, the insulating film is charged, so that a strong electric field is applied to the electrically conductive adhesive, and electrons are emitted from the electrically conductive adhesive through field electron emission, to thereby prevent the potential of the electrically conductive structure from increasing in the negative direction.

Electrical discharge countermeasure device

Growing community of inventors

Tokyo, Japan

Satoshi Hosoda