Nippondenso Co., Ltd.

Tetsuo Kato

Kazumasa Mori

Masanori Suzuki

Katsuya Muto

Yoshimitsu Yamaguchi

Yasuo Hibi

Satoshi Inukai

Harukazu Matsuyama

Etsushi Miura

An apparatus performing a filter from a material for a filter element automatically and quickly. The filter made by the present apparatus has a plurality of wavy portions which are provided in such a manner that a plurality of wavy portions forms a circle. The apparatus employs a contracting apparatus for contracting a continuously corrugated strip of material for a filter element in such a manner that a distance between adjacent ridges of the corrugated strip is reduced so that the corrugated strip becomes the wavy portion of the filter. The apparatus also employs a rounding apparatus for rounding the continuously corrugated strip in such a manner that both ends of the strip are connected to each other so that the wavy portions made from the corrugated strip form a circle. The apparatus further employs a shaping apparatus for shaping the rounded continuously corrugated strip so that the rounded strip becomes the filter.

Apparatus for making a filter from a material for a filter element

A new method of charging a vehicle battery is disclosed. The proposed method employs electronically controlled data processing device, which controls battery charging condition in accordance with temperature, battery electrolyte, external electric load as well as battery voltage. As a result, voltage drop due to over loading may be prevented and a stable battery charging voltage may be obtained.

Method of charging a vehicle battery

A voltage detecting means, such as a voltage winding, a zener diode or the like, is connected across a power source and is operative when the voltage applied thereto exceeds a predetermined value owing to a disconnection of a main lamp also connected across said power source. A disconnection indicating means, such as a lamp, is connected to the voltage detecting means and is energized when the volage detecting means operates.

Lighting system for a motor vehicle

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Anjo, Japan

Tetsuo Kato