Denso Corporation

Nippondenso Co., Ltd.

Hiroshi Ohmi

Hiroshi Shimizu

Seiji Amakusa

Ken Ogura

Nobuhiko Yamada

Shinji Kurano

Koichi Yokoyama

Norihiro Tateiwa

Takanobu Iwade

Tetsuyoshi Naito

A method for anodizing aluminum, wherein an object () made of aluminum or an aluminum alloy is anodized in an electrolytic solution (), and thereby an anodized aluminum film is formed on a surface of the object (), is provided. The electrolytic solution () is comprised of at least one acid selected from organic acids having two or more carboxylic groups, moves at an average speed of 15 cm/sec or less along at least an outer surface of the object (). The anodization is performed under conditions that a temperature of the outer surface of the object () is 80&#xb0; C. or less, and current density is in a range from 10 to 170 A/dm.

Method for anodizing aluminum and anodized aluminum

An electroless plating reaction catalyst is imparted to a substrate and then the catalyst is deactivated or removed at desired locations by irradiating with an energy beam to form groove portions in the substrate.

Cylindrical coil and production process thereof

A method and apparatus for plating an article having a portion that needs no plating at a high speed including as main components a chuck for chucking the article at the portion above stated and a shield cover for enclosing the chuck, maintaining a space therebetween. The space indicated above works to prevent an electrolyte from raising its level, thus keeping said portion out of said the electrolyte.

Method for plating an article and the apparatus therefor

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Anjo, Japan

Hiroshi Ohmi