Komatsu Corporation

Japan Tobacco Inc.

Yu Ninomiya

Kenji Ito

Jun Nakamura

Tetsuo Ohnishi

Yasunobu Inoue

Akihiro Sugiyama

Tatsushi Itou

Yutaka Kaihatsu

Hiroyuki Torai

Kazumasa Arae

Yuuki Kasaoka

Yuichiro Kido

Sadao Ogi

Tomiharu Nagata

Yuuta Sakurai

Hirokazu Ichitsubo

Wakako Kanto

Kenichi Itabashi

A determination method is for an exhaust gas treatment device mounted in a work machine and having at least one of a diesel oxidation catalyst and a catalyzed soot filter. The determination method includes acquiring heat damage information, acquiring cumulative heat damage information, and determining a usability of the exhaust gas treatment device based on the cumulative heat damage information. The heat damage information indicates an extent of heat damage of the exhaust gas treatment device based on a unique identification symbol of the exhaust gas treatment device. The cumulative heat damage information is acquired by accumulating the heat damage information.

Determination method for exhaust gas treatment device and determination system for exhaust gas treatment device

The filter for cigarette product includes a mouthpiece end side-filter material and a front stage-filter material. The mouthpiece end side-filter material has a low air flow-resistance unit that is arranged in a part of a cross section from a front end surface to a rear end surface and having a relatively low air flow-resistance, and a high air flow-resistance unit that is arranged in the remainder of the cross section from the front end surface to the rear end surface and having a higher air flow-resistance than the low air flow-resistance unit. At least on the rear end surface of the mouthpiece end side-filter material, the low air flow-resistance unit is arranged only in one semicircular area, of two parts into which the cross section of the mouthpiece end side-filter material is divided.

Filter for cigarette product and cigarette product

Growing community of inventors

Tokyo, Japan

Yu Ninomiya