Kureha Kagaku Kogyo Kabushiki Kaisha

Kensuke Okuda

Hiroto Fujimaki

Hideki Aoki

Hirosi Nagai

Atsushi Tomonaga

Kiyoshi Tagaya

Shigetoshi Ajima

Kazuo Noguchi

Kazutoshi Takada

An artificial dental root comprised of a particulate or powdered form of synthetic hydroxyapatite or calcined or sintered synthetic hydroxyapatite or a mixture thereof and an organic matrix, the surface area of said artificial dental root to be brought into contact with a bone being composed of both a phase of said hydroxyapatite and a phase of said organic matrix. The artificial dental root is prepared by blending said hydroxyapatite with said organic matrix and molding the blend. The artificial dental root has moderate affinity for a bone and high mechanical strength.

Process for preparing an artificial dental root

An organic friction material having favorable mechanical, thermal and frictional properties and comprising phenolic resin, carbon fibers, steel fibers and filler is disclosed, the organic friction material not containing any asbestos.

Organic friction material

Growing community of inventors

Tokorozawa, Japan

Kensuke Okuda