Taiyo Nippon Sanso Corporation

Fujitsu Corporation

Takayuki Fujimoto

Yasuyuki Yamamoto

Yoshiyuki Hagihara

Kimio Iino

Hiroshi Igarashi

Yuji Sakuramoto

A method for producing fine copper particles includes producing fine copper particles having a coating film containing cuprous oxide on a surface by heating copper or a copper compound in a reducing flame formed by a burner. The fine copper particles are produced by adjusting a mixing ratio between a combustible gas and a combustion supporting gas which form the reducing flame such that a volume ratio of CO/COis in a range of 1.5 to 2.4.

Fine copper particles, method for producing fine copper particles and method for producing sintered body

An object of the present invention to provide copper fine particles which can be sintered at a lower temperature than that of the conventional copper fine particles without causing a cost increase, a decrease in productivity, a method for producing the copper fine particles, and a sintered body, and the present invention provides copper fine particles having a coating film containing cuprous oxide and copper carbonate on the surface thereof.

Copper fine particle, method for producing same, and sintered body

An object of the present invention is to provide a combustion burner that is capable of efficiently performing heating of a raw material powder by improving the dispersibility of the raw material powder that is ejected from a raw material powder-ejecting port using a simple configuration, and a combustion burner in which raw material powder introduction pipes that introduce the raw material powder inside a raw material powder supply pathway are provided so that axes that extend from central axes of the raw material powder introduction pipes do not intersect a central axis of the burner main body, and so that angles &#x3b8; that are formed by central axes of the raw material powder introduction pipes and an outer surface of a second circular member are larger than 0&#xb0; and smaller than 90&#xb0;.

Raw material powder-heating method

Combustion burner, burner apparatus, and raw material powder-heating method

An object of the present invention is to provide a combustion burner which is capable of heating or melting a raw material powder efficiently by dispersing the raw material powder, and which is capable of improving a collection rate of the heated or melted raw material powder, the invention providing a combustion burner that forms flame including a dispersal member which is provided in the raw material powder outlet which spouts the raw material powder into the flame, includes first and second inclined surfaces, and which disperses the raw material powder by colliding with the raw material powder that is supplied to the raw material powder outlet.

Combustion burner

An image transformation method to be implemented by a computer carries out an image transformation process, by transforming a picked up image that is picked up by a pickup unit having an optical axis tilted by an arbitrary angle with respect to a reference plane into an image substantially equivalent to a picked up image that is picked up by the pickup unit in a state where the optical axis of the pickup unit is perpendicular to the reference plane, and substituting luminance values of coordinates before the transformation as luminance values corresponding to coordinate values after the transformation.

Growing community of inventors

Kawasaki, Japan

Takayuki Fujimoto