Kobe Steel, Ltd.

Shiseido Company, Limited

Mazda Motor Corporat Ion

Ryota Yamasaki

Masaaki Tanaka

Toshio Yanaki

Yoshikazu Soyama

Katsuyuki Kaneko

Isamu Kaneda

Mitsugi Fukahori

Kazuya Ikai

Toshihito Yabu

A gas shielded arc welding method includes welding a steel sheet with a tensile strength of 780 MPa or more using a shielding gas containing Ar in an amount of 92 vol. % to 99.5 vol. %. In the gas shielded arc welding method, a value calculated from the following expression (1) is 0.20 or more: {&#x221a;v/(D/2)}&#xd7;10&#x2212;{(100&#x2212;C)&#xd7;I/v}&#xd7;0.1 . . . (1), where Crepresents an Ar content (vol. %) in the shielding gas, D represents an inner diameter (mm) of a nozzle from which the shielding gas is supplied, v represents a welding speed (cm/min), and I represents a welding current (A).

Gas shielded arc welding method

The object of the present invention is to provide a film composition which is solidified in water of which a painted film is rapidly solidified and also has proper usabilities for use as a manicure. To accomplish the object a film composition of the present invention comprises water insoluble film materials, and a solvent which dissolves the water insoluble film materials and soluble with water, wherein the solvent contains specified alkylene glycol ethers and ketones, and characterized by that the film materials are precipitated from the mixture of the remaining solvent and penetrating water in a painted film of the composition when the painted film is dipped in water.

Compositions forming film solidifying in water and nail-care products and nail-care method with the use of the same

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Kanagawa, Japan

Ryota Yamasaki