Fujitsu Corporation

Tohoku University

Tsugio Kumai

Haruhiko Tabuchi

Shintaro Sato

Hideyuki Kikuchi

Hiroshi Nakao

Seimi Sasaki

Kazunori Miura

Ken-ichi Itoh

Takashi Kyotani

Kenichi Ito

Tomonori Ogawa

A carbon nanotube composite material contains a carbon nanotube and a continuous layer of a metal covering the inner surface of the carbon nanotube. It is produced by forming a metallic matrix layer and treating the metallic matrix layer to form plural nanoholes in the metallic matrix layer to thereby form a nanohole structure, the nanoholes extending in a direction substantially perpendicular to the plane of the metallic matrix layer; forming carbon nanotubes inside the nanoholes; and covering inner surfaces of the carbon nanotubes with a continuous layer of a metal. It has a well controlled small size, has excellent and uniform physical properties, is resistant to oxidation of the metal with time, is highly chemically stable, has good durability enabling repetitive use, has good coatability, high wettability and dispersibility with other materials, is easily chemically modified, is easily handled and is useful in various fields.

Carbon nanotube composite material comprising a continuous metal coating in the inner surface, magnetic material and production thereof

A magnetic recording medium is disclosed that includes a substrate; an anodic alumina film formed on the substrate; a pore formed in the anodic alumina film; a carbon layer covering the surface of the anodic alumina film and the inner wall of the pore; a magnetic particle formed on the carbon layer inside the pore; and a lubrication layer covering the carbon layer and the magnetic particle.

Magnetic recording medium, method of manufacturing the same, magnetic medium substrate employed in the magnetic recording medium, and magnetic storage unit

In an optical parts fixing device of the present invention, a substrate has an extension groove formed on an optical fiber fixing groove and has a width wider than that of the optical fiber fixing groove, or a substrate has the third groove which crosses end portions, opposed to each other, of the first groove for fitting an optical fiber therein and the second groove for fitting an optical device therein.

Optical parts fixing apparatus and method of manufacturing the same

Growing community of inventors

Kawasaki, Japan

Tsugio Kumai