Nippon Shinyaku Company, Ltd.

Mitsubishi Power, Ltd.

Mhi Plant Corporation

Masami Tsuda

Masahiro Kise

Ayatsugu Nakamura

Mitsushi Tanaka

Takashi Yamamoto

Yoshinori Koyama

Yasunari Shibata

Masashi Kitada

Kiyoshi Kimura

Masakuni Ozaki

Iwao Morita

Kenji Kazuno

Kenta Haari

Toshio Tomita

Gen Sakashita

Shinichi Tada

Shingo Matsumura, Deceased

Hisao Watanabe

Yasushi Okuda

Satoru Murai

Katsutoshi Kunimoto

In a soot blower, a heat transfer tube of a heat exchanger is arranged inside a pressure vessel, and gas for cleaning is injected toward the heat transfer tube from an injection pipe movable into and out of the pressure vessel. The soot blower includes a cylindrical casing provided to surround an insertion hole on the pressure vessel side into which the injection pipe is inserted, to extend outside the pressure vessel, the injection pipe being inserted into an inside of the casing; a support part provided inside the casing to guide movement of the injection pipe and to ensure airtightness between the casing and the injection pipe; and a gas supplying device provided immediately close to the support part to generate a jet stream of gas in a portion of the injection pipe that projects to the pressure vessel side.

Soot blower

The present invention is constituted with crystal of 2-amino-3-cyano-4-methyl-5-(2-fluorophenyl)pyrrole, which show diffraction peaks at diffraction angles (2&#x3b8;&#xb1;0.2 degree) of 10.3 degree, 14.3 degree, 15.5 degree, 15.9 degree, 25.1 degree and 25.7 degree in a powder X-ray diffraction spectrum, and also show absorption peaks at wavenumbers (cm, &#xb1;0.2%) of 3373, 3322, 2201, 762, 687 and 640 in an infrared absorption spectrum. The crystal of the present invention is superior in stability and is useful as a pharmaceutical bulk.

Stable crystals of pyrrole compound

Potassium channel activators

The invention relates to a pharmaceutical composition comprising a pyrrole derivative of the following formula &lsqb;1&rsqb; or a pharmaceutically acceptable salt thereof, or a solvate of either of them, as an active ingredient.

Pyrrole derivatives and medicinal composition

A compound of formula (I): ##STR1## wherein R.sup.1 is alkenyl or alkyl or both of the depicted R.sup.1 groups together represent trimethylene and form a six-membered ring together with the depicted oxygen and phosphorus atoms, R.sup.2 is nitro, trifluoromethyl or halogen, R.sup.3 is alkyl, and R.sup.4 is dimethoxymethyl, formyl, hydroxymethyl or nitrile.

Certain antihypertensive 1,4-dihydro-6-methyl-5-phosphonic

Quinolinecarboxylic acid derivatives, such as compound 7-fluoro-8-(4-methyl-1-piperazinyl)-5-oxo-1,2-dihydro-5H-thiazolo(3,2-a)-q uinoline-4-carboxylic acid, a pharmaceutical composition containing the same and methods of treatment of bacterial and fungal infections using the same.

Carboxylic acid derivatives

Growing community of inventors

Hiroshima, Japan

Masami Tsuda