Otsuka Kagaku Kabushiki Kaisha

Otsuka Chemical Co., Ltd.

Yukiya Hareyama

Hidetoshi Ogawa

Masayoshi Suzue

Kihachiro Nishiuchi

Takuo Morimoto

Kenichi Wada

An electroconductive compound in a flake form, characterized in that it comprises a titanium oxide which has an average long diameter of 1 to 100 &#x3bc;m and an average thickness of 0.01 to 1.5 &#x3bc;m, and contains potassium in an amount of 0.3 to 5 wt % in terms of potassium oxide (KO) and, formed on the surface thereof, a first electroconductive layer comprising a tin oxide containing antimony and, formed on the first electroconductive layer, a second electroconductive layer comprising a tin oxide.

Electroconductive compound in flake form and electroconductive composition

A printing sheet shaped from a resin containing 5 to 80 wt. % of a fibrous electrically conductive filler less than 100 &OHgr;&middot;cm in volume resistivity, having 3 to 50 &mgr;m in average fiber length, 0.01 to 5 &mgr;m in average fiber diameter and 3 to 100 in aspect ratio and having a surface coated with an electrically conductive layer containing at least a tin oxide and an antimony oxide, or a printing sheet comprising a film substrate and a covering layer formed on at least one surface of the substrate and comprising a resin containing the above conductive filler.

Printing sheets

An electroconductive plate-like titania containing at least 10% by weight of titanium nitride and at least 0.1% by weight of carbon component can provide electroconductive parts which are higher and more uniform in electroconductivity.

Electroconductive plate-like titania and electroconductive composition

Rubber composition

A carbon-coated titania powder containing titanium nitride in which at least part of the surface of the titania powder containing titanium nitride is coated with carbon.

Carbon-coated powder of titania containing titanium nitride and process for producing the same

An electrically conductive titanate derivative containing an element other than titanium is prepared by baking a mixture of a titanate and a compound containing an element other than titanium.

Growing community of inventors

Tokushima, Japan

Yukiya Hareyama