Nitto-denko Corporation

Toyota Jidosha Kabushiki Kaisha

Nitto Shinko Corporation

Susumu Kiyohara

Hiroshi Aihara

Kunio Nagasaki

Yoshinari Takayama

Daisuke Kitagawa

Kenichi Tagawa

Ryoichi Matsushima

Takafumi Hida

Jun Fujiki

Toshio Uota

The present invention provides a thermally-conductive sheet excellent in heat dissipation properties. The thermally-conductive sheet includes a polymer matrix and a thermally-conductive filler dispersed in the polymer matrix. The present invention is a thermally-conductive sheet including a polymer matrix and non-spherical particles of a thermally-conductive filler that are dispersed in the polymer matrix. At least a part of the thermally-conductive filler particles are oriented in a thickness direction of the sheet. When a portion of the sheet where the thermally-conductive filler particles have the highest degree of orientation in the thickness direction of the sheet is defined as a center of orientation, and an axis passing through the center of orientation and perpendicular to sheet surfaces is defined as a central axis of orientation, the thermally-conductive sheet has a region where the thermally-conductive filler particles are oriented toward one point on the central axis of orientation and where the degree of orientation of the thermally-conductive filler particles in the thickness direction of the sheet decreases from the center of orientation toward a periphery of the sheet.

Thermally-conductive sheet, LED mounting substrate, and LED module

An insulation inspection apparatus includes a chamber in which a stator with a winding can be stored, an electrode movable along the outer circumference of a coil end of the stator winding, a voltage application unit applying voltage between the coil end and electrode, a sensor unit sensing leakage current and/or voltage drop between the coil end and electrode, and a pressure reduction unit reducing the pressure in the chamber.

Insulation inspection apparatus

Growing community of inventors

Ibaraki, Japan

Susumu Kiyohara