Nhk Spring Co., Ltd.

Izumi Techno Inc.

Yoshihito Araki

Toshihiko Hanamachi

Go Takahara

Masaru Takimoto

Daisuke Hashimoto

Takashi Kawasaki

Satoshi Hirano

Yuichiro Yamauchi

Arata Tatsumi

Kenji Sekiya

Nobuyuki Furugori

Yuusuke Fukuoka

Yuki Toyama

Satoshi Anzai

Kengo Ajisawa

Shuhei Morota

Hibiki Yokoyama

Hiroshi Mitsuda

A novel punch for riveting with reduced load on a shaft of a rivet is provided. Alternatively, a device that is disposed with a novel punch for riveting with reduced load on a shaft of a rivet is provided. Alternatively, a method for joining members using a novel punch for riveting with reduced load on a shaft of a rivet is provided. A punch for riveting according to an embodiment of present invention includes joining a first member having a convex part and a second member having a through hole fitting with the convex part by plastically deforming the convex part, wherein a contact surface with the convex part is inclined in a range of 80° to 89° with respect to a center axis.

Punch for riveting, device in which punch for riveting is disposed, and method for joining members

A member for a plasma processing device includes: an aluminum base material; and an oxide film formed on the aluminum base material and having a porous structure, the oxide film including a first oxide film formed on a surface of the aluminum base material, a second oxide film formed on the first oxide film, and a third oxide film formed on the second oxide film, wherein the first oxide film is harder than the second oxide film and the third oxide film, and a hole formed in each of the first oxide film, the second oxide film and the third oxide film is sealed.

Member for plasma processing device

A small diameter sheath heater with improved reliability is provided. The sheath heater according to one embodiment of the present invention includes a metal sheath, a heating wire having a band shape, the heating wire arranged with a gap within the metal sheath so as to rotate with respect to an axis direction of the metal sheath, an insulating material arranged in the gap, and connection terminals arranged at one end of the metal sheath, the connection terminals electrically connected with both ends of the heating wire respectively.

Sheath heater

Growing community of inventors

Kanagawa, Japan

Yoshihito Araki