Jidosha Denki Kogyo K.k.

Masao Irie

Yasuo Ohashi

A small-sized centrifugal pump is improved in its efficiency and performance by having an impeller the height of which is higher than theoretically calculated value and decreases in the circumferential direction from the central portion, and which has a flow channel with a narrow and constant width.

Centrifugal pump with high efficiency impeller

A windshield wiper motor is provided with an auto-stopping switch having a first contact plate, a second contact plate, a third contact plate and a contact shoe for contacting with said third contact plate at all times and for contacting selectively with said first or second contact plate by sliding reciprocatively on a straight line in accordance with rotation of the final gear of reduction gear. It is possible to prevent the auto-stopping switch from chattering caused by snow gathered in the vicinity of a stopping position of a wiper blade in snowfall.

Growing community of inventors

Yokohama, Japan

Masao Irie