Kabushiki Kaisha Toshiba

Nippon Kayaku Kabushiki Kaisha

Tomoki Fujita

Akira Ito

Akira Kawaguchi

Hajime Mori

Kunihiko Kinugasa

Takashi Yoneda

Yasuhiro Sakai

Kenji Ooshima

Yuki Minato

Yuichi Motora

Haruhiko Hata

Kozue Matsukawa

Kiyofumi Saiki

Yuka Shishikura

A bolt fixing device is configured so that a lock cap is pushed up by elastic force of an elastic member and engages upper surface teeth with lower surface teeth, the upper surface teeth being formed on the upper surface of a flange of a lock cap, the lower surface teeth being formed on the lower surface of an engagement flange of a body housing. Thus, the head bolt of a jet pump beam is fixed. With the configuration, when installing an inlet mixer, the head bolt of the jet pump beam is simply and reliably locked against rotation.

Jet pump and bolt fixing device of jet pump beam

The present invention relates to a porphyrazine coloring matter or a salt thereof represented by the following formula (1) [wherein, the rings of A to D are each independently a benzene ring or a 6-membered nitrogen-containing heteroaromatic ring, E is alkylene, X is a sulfo-substituted anilino group or the like which may further have a substituent, Ris a C1-C6 alkyl group, b is 0.00 or more and less than 3.90 as an average value, c is 0.10 or more and less than 4.00 as an average value, and the sum of b and c is 1.00 or more and less than 4.00 as an average value]. The ink composition containing the porphyrazine coloring matter of the present invention has a good hue as a cyan ink, is excellent in various fastness properties, particularly in ozone fastness, allows a high print density, has properties hardly causing bronze phenomenon, and can provide a porphyrazine coloring matter suitable for inkjet recording and an ink composition containing this. 

Porphyrazine coloring matter, ink composition containing the same and colored product

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Tokyo, Japan

Tomoki Fujita