Hitachi Koki Co., Ltd.

Eisai Company, Limited

Eisai Chemical Co., Ltd.

Hiroshi Nishimura

Masao Miyasaka

Norio Minami

Toshio Hiki

Ken Furukawa

Yoji Yamagishi

Nobuhiko Itoh

Yuuki Komatsu

Akira Igarashi

Processes for the preparation of hydroquinone and benzoquinone

A paper tension adjusting device in which one of the tractors with feeding pins changing feeding apertures in the paper is movable widthwise to adjust widthwise paper tension. The desired tension is determined from paper thickness which is in turn determined from the hammer flight time. Lengthwise tension is adjusted by adjusting paper clampers separated from the tractors. The tension is both widthwise and lengthwise directions is determined by optically sensing the positions of the feeding pin with respect to the aperture in which that pin is engaged.

Paper tension adjusting device and method for a printer

A device for cleaning a rotary type-carrier, in which a brush which contacts the type-carrier continuously to clean it during normal operation may be moved so that its rotary center is positioned more closely to the type-carrier. As a result, as the brush wears out, it may maintain contact with the type-carrier, obviating the need for frequent replacement.

Device for cleaning a type-carrier

Growing community of inventors

Ibaraki, Japan

Hiroshi Nishimura