Canon Kabushiki Kaisha

Ntn Corporation

Nobuo Masaki

Eiko Sekine

Naoki Tashiro

Yutaka Ban

Tadayuki Tsuda

Toru Takahashi

Mitsuru Sakurai

Hiroyuki Tokuda

Yasumichi Wakao

Hiroshi Nitanda

Kentaro Nishikawa

Tateki Nagaoka

Yoshiki Furukawa

A wear amount detection device to detect that a tire is in a worn state, during running, without a special sensor. The device includes a rotation sensor detecting rotation of a wheel to measure a speed of an automobile; a signal processing extracting rotation speed fluctuations synchronized with rotation, from a rotation signal detected by the rotation sensor, and obtain a rotation speed fluctuation pattern synchronized with rotation, from rotation speed fluctuations over a plurality of rotations; and a wear state determination configured to obtain, from the obtained pattern, a value of a component induced by a characteristic embodied in a tire of the wheel, the value varying in accordance with a wear state of the tire, to estimate a wear state of the tire, and to output the state.

Wear amount detection device for automobile tires

Toner container for photo-copier

Electrophotographic copier

Developing device for electrophotographic copier

Drum kit for electrophotographic copier

Process kit for electrophotographic copier

Toner case for electrophotographic copier

Growing community of inventors

Kawasaki, Japan

Nobuo Masaki