Idemitsu Kosan Company, Limited

Kabushiki Kaisha Daikin Seisakusho

Tomoo Ishihara

Hisashi Machida

Hitoshi Hata

Hirohisa Tanaka

Tooru Hamada

A lubricant composition for transmission of power consisting essentially of (A) base oil of which main component is a saturated hydrocarbon having condensed ring and/or non-condensed ring, (B) one kind or more than two kinds of zinc dithiophosphate and/or oxymolybdenum organophosphorodithioate sulfide, (C) alkenyl succinimide and (D) rust inhibitor.

Lubricant composition for transmission of power

A lubricant composition for transmission of power consisting essentially of (A) base oil of which main component is a saturated hydrocarbon having condensed ring and/or non-condensed ring, (B) one kind or more than two kinds of zinc dithiophosphate and/or oxymolybdenum organophosphorodithioate sulfide, and (C) at least one kind of compound selected from the group consisting of phosphoric ester, phosphorous ester and their amine salts.

An automatic clutch unit having a pneumatically operated servo-cylinder for operating a clutch and simultaneously incorporating one newly-developed proportional electro-pneumatic control valve, which supplies an air quantity corresponding to an intensity of electric current, to have the clutch shift in compliance with a delicate clutch displacement pattern according to each driving condition; perceiving that vacuum can easily be extracted from an intake manifold in case of a vehicle powered by a petrol engine and that a compressor for braking operation is always equipped in case of a vehicle powered by a large diesel engine.

Growing community of inventors

Takaidonishi, Japan

Tomoo Ishihara