Kurita Water Industries Ltd.

Jfe Steel Corporation

Nkk Corporation

Other

Sony Corporation

Kenji Tahara

Hideki Matsuoka

Ayako Sekikawa

Hideo Sugi

Reiko Sugihara

Tatsuhiko Hiratani

Yasushi Tanaka

Satoshi Kodama

Yasuyuki Takada

Toyofumi Watanabe

Junichi Inagaki

Fumio Toda

Hiroaki Kato

Ryoichi Takahashi

Ken-ichi Mitsuzuka

Yoshihiko Oda

Masaaki Yamashita

Masatoshi Kumagai

Kunikazu Tomita

Michitaka Sakurai

Koichiro Fujita

Taro Kizu

Kazuhiro Hanazawa

Eiko Yasuhara

Teruo Takeuchi

Nobuo Yamagami

Kenichi Mitsuzuka

Keisuke Mizuno

Katsumi Nakajima

Chohachi Sato

Keisuke Fukumizu

Masamichi Okada

Kenichiro Takayanagi

Noriko Kubo

Hideharu Koga

Eiichirou Kondou

Isao Joukou

A cold-rolled steel sheet includes, on a percent by mass basis: C: 0.0010% to 0.0030%, Si: 0.05% or less, Mn: 0.1% to 0.3%, P: 0.05% or less, S: 0.02% or less, Al: 0.02% to 0.10%, N: 0.005% or less, and Nb: 0.010% to 0.030% and the remainder composed of Fe and incidental impurities, wherein values in a rolling direction and a direction perpendicular to the rolling direction are within a range of 1.0 to 1.6, and a mean value Elof elongations in the rolling direction, a direction at 45&#xb0; with respect to the rolling direction, and the direction perpendicular to the rolling direction is 40% or more, where El=(El+2&#xd7;El+El)/4 and El: elongation in the rolling direction, El: elongation in the direction at 45&#xb0; with respect to the rolling direction, and El: elongation in the direction perpendicular to the rolling direction.

Cold-rolled steel sheet, method for manufacturing the same, and backlight chassis

A steel sheet for an inner magnetic shield has a ratio of the anhysteretic magnetic permeability in the rolling direction to the anhysteretic magnetic permeability in the transversal direction, which is not higher than 0.7 or not lower than 1.4, preferably not higher than 0.5 or not lower than 2.0. A higher value of the two anhysteretic magnetic permeability values in the rolling direction and in the transversal direction is not lower than 18000. The inner magnetic shield formed of the particular steel sheet has a substantially truncated pyramid body which has a pair of short side members of a screen and a pair of long side members of a screen. The short side members are joined to the long side members at edge portions of the truncated pyramidal inner magnetic shield. The direction, in which the anhysteretic magnetic permeability of the steel sheet is the higher value, corresponds to the horizontal plane direction of the short side member. In addition, the direction, in which the anhysteretic magnetic permeability of the steel sheet is the higher value, corresponds to as required to the horizontal plane direction of the long side member.

Steel sheet for inner magnetic shield and method of producing the same, inner magnetic shield, and color cathode ray tube

A steel sheet for a magnetic shield comprising less than 0.005% by weight of C and 0.0003 to 0.01% by weight of B, and having a thickness of 0.05 to 0.5 mm and an anhysteresis magnetic permeability of 7500 or more.

Steel sheet for magnetic shields and manufacturing method thereof

A steel sheet for magnetic shields is provided containing 0.15% by weight or less of C and having a thickness of 0.05-0.5 mm and an anhysteretic magnetic permeability of 7500 or higher.

Magnetic shielding steel sheet and method for producing the same

A method of making a steel sheet for a tension mask, including the steps of: hot rolling a steel consisting essentially of, by weight %, C: less than 0.1%, Si: 0.05% or less, Mn: 0.4 to 2%, P: 0.03% or less, S: 0.03% or less, sol.Al: 0.01% or less, N: 0.010% or more, and the balance of Fe; and annealing the cold rolled steel sheet, followed by a secondary cold rolling at a reduction rate of 35% or higher. The steel sheet produced by this method shows excellent creep resistance during blackening treatment and excellent magnetic shielding property with an anhysteretic permeability of 3400 or more at a DC bias magnetic field of 0.35 Oe, and therefore causes no color-deviation when applied to the tension mask.

Steel sheet for tension mask, making method thereof and tension mask

A heat shrink band steel sheet of the present invention comprises on the basis of percent in weight C: 0.1% or less, Si: 0.1% or less, Mn: 0.1 to 2%, P: 0.15% or less, S: 0.02% or less, sol Al: 0.08% or less, and N: 0.005% or less, or C: 0.005% or less, Si: 0.1% or less, Mn: 0.1 to 2%, P: 0.15% or less, S: 0.02% or less, sol Al: 0.08% or less, N: 0.005% or less, Ti: 0.02 to 0.06%, and B: 0.0003 to 0.005%, wherein the product of a magnetic permeability at the magnetic field of 0.3 Oe after heat shrinking treatment and a thickness (mm) is at least 350. A color CRT having a sufficient magnetic shielding characteristic and a less amount of color deviation can be realized by the steel sheet.

Heat shrink band steel sheet and manufacturing method thereof

Method for producing a galvannealed steel sheet wherein a slab consisting essentially of C in an amount of 0.004 wt. % or less, N in an amount of 0.004 wt. % or less, Ti in an amount of 0.01 to 0.15 wt %, Si in an amount of 0.05 wt. % or less, Mn in an amount up to 2.5 wt. %, P in an amount up to 0.1 wt. %, S in an amount of 0.015 wt. % or less, sol. Al in an amount of 0.02 to 0.1 wt. % and the balance being Fe, is soaked for at least 30 minutes at a specified temperature (range). The soaked slab is hot rolled to produce a hot-rolled steel sheet which is coiled at a temperature of 500 to 700.degree. C. The coiled hot-rolled steel sheet is cold rolled at a reduction ratio of 60% or more to produce a cold-rolled steel sheet which is annealed at a temperature of from recrystallization temperature to Ac3 transformation temperature. Galvanizing the annealed cold-rolled steel sheet and then galvannealing at a temperature of 450 to 600.degree. C.

Method for producing galvanized steel sheet

Alloying-treated iron-zinc alloy dip-plated steel sheet excellent in

An antimicrobial composition comprises a clathrate compound containing a water-soluble microbicide, and a dispersion medium. For example, the composition may comprise of a clathrate compound containing a water-soluble microbicide and having a particle size of 200 mesh at maximum, said clathrate compound being formed of 5-chloro-2-methyl-4-isothiazoline-3-one and at least one polymolecular host compound selected from the group consisting of 1, 1-di (2,4-dimethylphenyl)-2-propyne-1-ol; 1,1,6,6-tetra(2,4-dimethylphenyl)-2,4-hexadiyne-1,6-diol; 1,1-bis(4-hydroxyphenyl)cyclohexane; N,N,N',N'-tetra(cyclohexyl)-[1,1'biphenyl]-2,2'-dicarboxyamide; 2,2'-methylenebis(4-chlorophenol), deoxycholic acid; and 2,5-di-tert-butylhydroquinone and a dispersion medium.

Antimicrobial dispersion composition

A clathrate compound which comprises diethyltoluamide and a polymolecular host compound capable of taking up diethyltoluamide. The host compound is bisphenol compounds. Diethyltoluamide is stabilized by forming the clathrate compound.

Clathrate compound and process for stabilizing diethyltoluamide

A sustained release aromatic comprises a clathrate compound composed of a perfume and a polyphenyl compound and gives out fragrance slowly but steadily over a long period of time. It is produced by a process comprising melting under heat a perfume which is a solid at an ordinary room temperature, and adding a polyphenyl compound to the molten perfume. Alternatively, a perfume which is a liquid at an ordinary room temperature is mixed with a polyphenyl compound so that they may react with each other, and a solid reaction product is separated from their mixture.

Sustained release aromatic

Diphenic acid bis(dicyclohexylamide) represented by the following formula: ##STR1## A process for producing diphenic acid bis(dicyclohexylamide) represented by the above formula, which comprises dimerizing a diazonium salt of o-aminobenzoic acid in the presence of a reducing agent, followed by acidification to give 2,6'-dicarboxylbiphenyl; converting this dicarboxylic acid to 2,6'-dichloroformylbiphenyl by chlorination; and reacting this acid chloride with dicyclohexylamine. Sustained release antimicrobial compositions comprising a clathrate compound consisting of a microbial agent and diphenic acid bis(dicyclohexylamide) represented by the above formula.

Diphenic acid bis(dicyclohexylamide) for clothrate compound, process for

A sustained release antimicrobial agent comprises a clathrate compound composed of a water-soluble microbicide and at least one of the compounds shown at (I) to (V) below:

Sustained release antimicrobial agents and method of fouling control

A wet spray booth treating agent, characterized by containing melamine-aldehyde acid colloid solution and a method for the treatment of a wet spray booth, characterized by the use of the aforementioned treating agent.

Wet spray booth treating agent and method for treatment therewith

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Tokyo, Japan

Kenji Tahara