Daicel Corporation

Jfe Steel Corporation

Tokyo Ohka Kogyo Co., Ltd.

Daecel Corporation

Kyohei Ishida

Tsutomu Watanabe

Dai Shiota

Kunihiro Noda

Hiroki Chisaka

Takashi Kuroki

Akio Fujibayashi

Takeshi Fujikawa

Kazuhiro Uehara

Issei Suzuki

Naoki Nakata

Hiroki Takenaka

Takeshi Taki

Jiro Hikida

Yuki Takaki

Yuji Nishizawa

Masayuki Horie

Shogo Tomita

Yusuke Yoshinari

Yusuke Ishigaki

Yoshiaki Nishina

Kieko Hanano

Masami Tate

Yuta Tokumoto

Seiji Enoeda

Daisuke Imanishi

Michio Sato

Shunichi Nishida

Naoto Hirata

A novel compound suitable as an epoxy curing catalyst; an epoxy curing catalyst using the compound; and a method for producing the compound. A compound represented by formula (1) in which Xrepresents an m valent counter cation, Rrepresents an aromatic group which may have a substituent; Rrepresents an alkylene group which may have a substituent; Rrepresents a halogen atom, a hydroxyl group, a mercapto group, a sulfide group, a silyl group, a silanol group, a nitro group, a nitroso group, a sulfonic acid ester group, a phosphino group, a phosphinyl group, a phosphonic acid ester group or an organic group; m represents an integer of 1 or more; n represents an integer of 0-3; and Rmay bond with Rto form a cyclic structure.

Compound, epoxy curing catalyst and method for producing compound

A metal strip stabilization apparatus includes: a displacement measurement unit configured to measure a displacement of a metal strip during traveling in a non-contact manner; a control unit configured to generate a vibration suppression signal and a position correction signal based on a measurement signal; and an electromagnet unit including: a vibration suppression coil configured to generate a first magnetic force based on the vibration suppression signal; a position correction coil configured to generate a second magnetic force based on the position correction signal; and a core about which the vibration suppression coil and the position correction coil are wound concentrically, the core leading the first magnetic force.

Metal strip stabilization apparatus and method for manufacturing hot-dip coated metal strip using same

A magnetic separator comprises: at least one pair of guide rolls; and a conveyor belt that extends between the pair of guide rolls, and conveys a powdery and/or granular material containing ferromagnetic particles, wherein one guide roll of the pair of guide rolls is a hollow roll, and includes, in a hollow part thereof, a magnet roll including a plurality of magnets that are arranged along an inner peripheral surface of the guide roll in lines at intervals so that different magnetic poles alternate in a circumferential direction, and the magnetic separator further comprises a shield wall that covers a circular arc region of an outer peripheral surface of the guide roll except a circular arc region around which the conveyor belt is wound, to block magnetic lines of force from the plurality of magnets.

Magnetic separator, magnetic separation method, and iron source manufacturing method

The present invention provides a curable composition excellent in curability and capable of forming, through light irradiation, a cured product excellent in light resistance, heat resistance, and transparency. The curable composition contains the following component (A), the following component (B), and the following component (C): the component (A): an alicyclic epoxy compound represented by the following formula (a); the component (B): a light resistance imparting agent having a maximum absorption wavelength in a region between 280 and 320 nm in an ultraviolet-visible light absorption spectrum from 250 to 400 nm; and the component (C): an optical cationic polymerization initiator: 

Curable composition and optical element obtained using same

The present invention provides a curable composition excellent in curability and capable of forming, through light irradiation, a cured product excellent in light resistance, heat resistance, and transparency. The curable composition contains the following component (A), the following component (B), and the following component (C): 

Provided is a curable composition that is rapidly cured to form a cured product. The cured product resists yellowing, successfully maintains excellent transparency over a long time even in a high-temperature environment, and is advantageously usable as or in a wafer-level lens. The curable composition according to the present invention includes a cycloaliphatic epoxide (A), a siloxane compound (B), and a curing agent (C). The cycloaliphatic epoxide (A) is represented by Formula (1). The siloxane compound (B) contains two or more glycidyl groups per molecule. In the formula, X is selected from a single bond and a linkage group. 

Curable composition, cured product thereof, and wafer level lens

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Himeji, Japan

Kyohei Ishida