Jfe Steel Corporation

Asahi Kasei Kabushiki Kaisha

Jfe Civil Engineering & Construction Corporation

Takumi Ishii

Tomohiro Kinoshita

Kazuaki Miyagawa

Yusuke Shimizu

Wataru Kitamura

Hiroki Akiyama

Yuichi Inoue

Hisaya Kamura

Akinao Nakamura

Provided is a manufacturing method of a flexographic printing plate, including a development step of subjecting a plate surface of a flexographic printing original plate including at least a support, a photosensitive resin composition layer, and an infrared ablation layer sequentially stacked to brushing with a brush while supplying an organic solvent-based developer to the plate surface, wherein the organic solvent-based developer includes 0.1% by mass or more and 10.0% by mass or less of a polymer gel.

Manufacturing method of flexographic printing plate and printing method

A polymer electrolyte membrane according to the present invention has a cluster diameter of 2.96 to 4.00 nm and a converted puncture strength of 300 gf/50 &#x3bc;m or more. The polymer electrolyte membrane according to the present invention has a low electric resistance and an excellent mechanical strength.

Polymer electrolyte membrane and method for producing the same

A pin joint type structural member, made of double steel pipe consisting of a main pipe and a stiffening pipe, restrains buckling so as to be stable under axial compressive force. A clearance between the stiffening pipeand the reinforcing member is determined so that a ratio (P/P) of the reinforcing member contact force with the stiffening pipe inner surface at the endof a counter-clevis side, to the reinforcing member contact force with the stiffening pipe inner surface at the endof the clevis side may be 0.40 to 0.65 when the reinforcing memberinclines to the main pipedue to the axial force acting on the main pipe. In addition, a length Lthat the stiffening pipeoverlaps with the reinforcing memberis at least 1.1 times as large as the reinforcing member outer diameter at the overlapping portion.

Pin joint type structural member made of double steel pipe for restraining buckling thereof

A buckling stiffening brace member eliminates welding time. Readily available components such as a steel rod and a steel pipe can be used as an axial force member and a stiffening member. The axial force member and the stiffening member can be easily connected in a dry manner by threads. A thread for screwing with a joint is formed at an end of an axial force member. At an end of a stiffening pipe that does not have a retaining ring, a sleeve for suppressing neck bending of the axial force member is joined to the outer surface of the axial force member. The axial force member and the stiffening pipe are joined together with the retaining ring therebetween by inserting an end of the axial force member that does not have the sleeve into the inner peripheral surface of the retaining ring and joining it to the retaining ring.

Brace member

Growing community of inventors

Tokyo, Japan

Takumi Ishii