Hitachi, Ltd.

Fuji Jukogyo Kabushiki Kaisha

Uacj Corporation

Subaru Corportion

Shinichi Nakamura

Hirokazu Tanaka

Tomoki Yamayoshi

Taichi Suzuki

Daisuke Okabe

Dan Xu

Noboru Fujita

Thanh Hai Vo

Provided is a brazed aluminum member brazed with a member formed of a brazing sheet, in which two or more grooves are provided on a surface of the brazed aluminum member in a fillet forming area, a groove depth (D) of the grooves is 0.005 mm to 0.50 mm, a groove width (W) of the grooves is 0.005 mm to 0.50 mm, a ratio (W/D) of the groove width (W) to the groove depth (D) is 10.00 or less, and a space (P) between adjacent grooves is 0.00 mm to 0.30 mm. The present invention can provide an aluminum material and a method for producing a brazed product that can secure good brazing properties even when the clearance between the jointed members is large in the case where the aluminum material is brazed without using a flux.

Brazed aluminum member and method for producing brazed product

Provided is an information system and an information collection method that are capable of acquiring desired site data while preventing an increase in cost. A link logic definition unitholds a link logic that is definition information defining a correspondence relation between an item value of the site data and a reference value that is an external value of transaction data used for acquiring the item value. A link logic data acquisition unitacquires the item value of the site data by using the link logic.

Information system and information collection method

Wheel for an automobile

Growing community of inventors

Tokyo, Japan

Shinichi Nakamura