Patents Assigned to Mitsui
  • Publication number: 20090120544
    Abstract: An object of the present invention is to provide a strengthened alpha brass having a good balance between high offset yield strength and formability without deteriorated stress relaxation resistance in comparison with conventional brass and a manufacturing method of the strengthened alpha brass. In order to achieve this object, a strengthened alpha brass having a composition of 63 wt % to 75 wt % copper, incidental impurities and the balance zinc; the strengthened alpha brass which is obtained by using a starting plate material subjected to a re-crystallization annealing to have a grain size from 1-micron meter to 2-micron meter followed by cold rolling in 5% to 40% reduction, then the plate material is low temperature annealed at a temperature equal to or higher than the temperature at which a 0.2% offset yield strength exhibits a maximum value to adjust the 0.2% offset yield strength ([Sigma]0.2: MPa) to be equal to or higher than 90% of its maximum value is adopted. The strengthened alpha brass has a 0.
    Type: Application
    Filed: February 3, 2006
    Publication date: May 14, 2009
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventor: Hiroshi Yamaguchi
  • Publication number: 20090124746
    Abstract: A thermoplastic elastomeric composition which have an improved compression set and good electrical properties is provided. The disclosed is thermoplastic elastomeric composition which includes 0.1-30 parts by weight of carbon fibrous structures per 100 parts by weight of a thermoplastic elastomer, wherein the carbon fibrous structure comprises a three dimensional network of carbon fibers each having an outside diameter of 15-100 nm, wherein the carbon fibrous structure further comprises a granular part with which the carbon fibers are tied together in the state that the concerned carbon fibers are externally elongated therefrom, and wherein the granular part is produced in a growth process of the carbon fibers.
    Type: Application
    Filed: October 18, 2006
    Publication date: May 14, 2009
    Applicants: BUSSAN NANOTECH RESEARCH INSTITUTE INC., MITSUI & CO,. LTD
    Inventors: Koichi Handa, Takayuki Tsukada, Tsuyoshi Okubo, Jiayi Shan, Akira Yamauchi, Manabu Nagashima
  • Publication number: 20090124772
    Abstract: A process for synthesizing an organic transition metal complex compound with an atom group having an electron-donor ability, in an industrially and economically advantageous manner, without a compound having a proton-donor ability being a metal salt, and a metathesis catalyst produced with the use of the above process, are provided. A process for producing an organic transition metal complex compound in which an atom group having an electron-withdrawing ability can be converted into an atom group having a stronger electron-donor ability, by contacting an compound having a proton-donor ability with the organic transition metal complex compound with an atom group having an electron-withdrawing ability, in the presence of an basic compound, and a metathesis catalyst of which the content of an alkali metal is reduced, and which is obtainable with the use of the above process, are provided.
    Type: Application
    Filed: October 17, 2006
    Publication date: May 14, 2009
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Takashi Ochiai, Yuichi Okawa, Tadahiro Sunaga
  • Publication number: 20090124490
    Abstract: Disclosed is a photocatalyst comprising a photocatalytically active base, and a silicon oxide film covering the base and substantially having no pores. The alkali metal content of the photocatalyst is not less than 1 ppm but not more than 1,000 ppm. Also disclosed is a method for producing such a photocatalyst wherein when a photocatalytically active base present in an aqueous medium is coated with a silicon oxide film by using a silicate, the pH of the aqueous medium containing both the photocatalytically active base and the silicate is maintained at 5 or below.
    Type: Application
    Filed: February 14, 2006
    Publication date: May 14, 2009
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Satoru Miyazoe, Takashi Nabeta, Nobuhiko Horiuchi
  • Publication number: 20090123698
    Abstract: Disclosed is a method for producing an optical film composed of a transparent resin and a metal oxide, which film has high light transmittance and light diffusion property even it is formed thin. Also disclosed is such an optical film. Specifically disclosed is a method for producing an optical film having a total light transmittance of not less than 70% and a haze value of not less than 20%, which comprises a step (A) wherein a metal compound to form a metal oxide through a sol-gel reaction is subjected to a sol-gel reaction in a solvent; a step (B) for providing a solution containing a transparent resin as a solute; a step (C) for mixing the mixture obtained in the step (A) with the solution obtained in the step (B); and a step (D) wherein the mixture obtained in the step (C) is applied or spread over a substrate or container and then heated for evaporating the solvent, thereby forming a film thereon.
    Type: Application
    Filed: March 19, 2007
    Publication date: May 14, 2009
    Applicant: MITSUI CHEMICALS , INC.
    Inventors: Fumiaki Nishino, Katsunori Nishiura, Kazuyuki Fukuda, Toshihiko Takaki, Takehiro Miyashita
  • Publication number: 20090124785
    Abstract: An isocyanate has been widely used as a starting material for the production of a polyurethane material, a polyisocyanurate material or the like which is suitably applicable to the field of optical materials. Disclosed is a process for producing an isocyanate which includes a step for producing the isocyanate in the form of a hydrochloride with improved productivity. A process for producing a linear or cyclic aliphatic isocyanate comprising the step of reacting a linear or cyclic aliphatic amine with hydrogen chloride to yield a hydrochloride of the linear or cyclic aliphatic amine, the step being performed under a pressure higher by 0.01 MPa or more than the atmospheric pressure.
    Type: Application
    Filed: July 20, 2006
    Publication date: May 14, 2009
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Chitoshi Shimakawa, Hiroyuki Morijiri, Hidetoshi Hayashi, Norihiko Fukatsu, Seiichi Kobayashi, Homare Yumoto, Junichi Ishiyama, Shinya Tsuchiyama
  • Publication number: 20090121606
    Abstract: An electron emission Source is disclosed, in which the fine carbon fibers included are uniformly dispersed as compared with those in the conventionally known electron emission sources, and the manufacturing of which is also easy. The electron emission source is manufactured by preparing a carbon fibrous structures' dispersion which comprises at least carbon fibrous structures and a binder resin, wherein carbon fibrous structure comprises a three dimensional network of carbon fibers, each of which having an outside diameter of 15-100 nm, wherein the carbon fibrous structure further comprises a granular part, at which two or more carbon fibers are bound in a state that the carbon fibers extend outwardly therefrom, and wherein the granular part is produced in a growth process of the carbon fibers; applying the carbon fibrous structures' dispersion onto the substrate; and solidifying the applied carbon fibrous structures' dispersion.
    Type: Application
    Filed: October 18, 2006
    Publication date: May 14, 2009
    Applicants: BUSSAN NANOTECH RESEARCH INSTITUTE INC, MITSUI & CO. LTD
    Inventors: Tsuyoshi Okubo, Koichi Handa, Takayuki Tsukada, Jiayi Shan, Akira Yamauchi, Manabu Nagashima
  • Publication number: 20090124760
    Abstract: It is an object to provide a new polyolefin hybrid polymer composed of a polyolefin segment and a polar polymer segment (Z) and a method for manufacturing the hybrid polymer by an industrially advantageous procedure. A polyolefin hybrid polymer composed of a polyolefin segment and a polar polymer segment (Z), wherein the polyolefin hybrid polymer is a modified compound of maleic polyolefin (A), is characterized by comprising a constitutional unit represented by the general formula (I): wherein Z represents a polar polymer segment obtained by polymerizing monomers of at least one kind selected from organic compounds having at least one carbon-carbon unsaturated bond, and F represents a group including an unsaturated bond.
    Type: Application
    Filed: July 11, 2006
    Publication date: May 14, 2009
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Hideyuki Kaneko, Shinichi Kojoh, Nobuo Kawahara, Shingo Matsuo, Tomoaki Matsugi, Norio Kashiwa
  • Publication number: 20090124493
    Abstract: The present invention provides an exhaust gas cleaning catalyst containing a tetragonal-system composite oxide which is produced through a neutralization coprecipitation-drying-firing method and which is represented by A2BO4 (wherein A represents at least one member selected from the group consisting of Ca, Sr, and Ba; and B represents at least one member selected from the group consisting of Mn, Fe, Ti, Sn, and V), and a noble metal component which is present in the tetragonal-system composite oxide as a solid solution or which is carried by the composite oxide. The invention also provides a method for producing the tetragonal-system composite oxide. The exhaust gas cleaning catalyst exhibits high catalytic activity at low temperature and excellent heat resistance, thereby attaining reliable exhaust gas purification performance.
    Type: Application
    Filed: January 12, 2009
    Publication date: May 14, 2009
    Applicant: MITSUI MINNG & SMELTING CO., LTD.
    Inventors: Yuunosuke NAKAHARA, Katsuya Furumura
  • Publication number: 20090120489
    Abstract: An encapsulating material for solar cell containing a laminated adhesive and heat resistant layer (A) and a buffering layer (B), wherein a difference in flexural modulus between the heat resistant layer (A) and the buffering layer (B) is at least 30 MPa or more, is provided. The adhesive and heat resistant layer (A) is preferably an olefin polymer (a) having a melting point (according to JIS K7121) of 75° C. or higher and having a storage elastic modulus at 150° C. of 103 Pa or more and the buffering layer (B) is preferably an olefin polymer (d) having a stiffness of 100 MPa or less. The encapsulating material for solar cell can provide superior transparency, flexibility, heat resistance and adhesiveness and can remarkably improve production efficiency of a solar cell module even when no organic peroxide is used. The encapsulating material can also exhibit a performance capable of corresponding to the thickness reduction of the solar cell element even when an organic peroxide is used.
    Type: Application
    Filed: March 8, 2006
    Publication date: May 14, 2009
    Applicant: Du Pont-Mitsui Polychemicals Co., Ltd.
    Inventors: Koichi Nishijima, Kenji Miharu
  • Patent number: 7531904
    Abstract: The present invention provides Al-based wiring material that allows, in a display device including thin film transistors and transparent electrode layers, direct bonding to the transparent electrode layer made of ITO, IZO or the like as well as direct bonding to the semiconductor layer, such as n+-Si. The Al—Ni—B alloy wiring material according to the present invention is configured such that the nickel content X at %, the nickel atomic percent, and the boron content Y at %, the boron atomic percent, satisfy the following equations: 0.5?X?10.0, 0.05?Y?11.0, Y+0.25X?1.0 and Y+1.15X?11.5, and the remainder is aluminum.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: May 12, 2009
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Hironari Urabe, Yoshinori Matsuura, Takashi Kubota
  • Patent number: 7530199
    Abstract: Under a method to control a sliding speed in accordance with this invention, the motor is initially accelerated for a predetermined reference speed, and then during the initial acceleration period, if a rotational speed of the wire drum is of and above a given value, a difference between a rotational speed of the wire drum and a rotational speed of the motor is of and above a given value, and a rate of acceleration of the wire drum is of and above a given value, the rotational speed of the motor is reduced temporarily judging the slide door is in a state of abnormal acceleration, and then the motor is accelerated again at a lower rate than the initial acceleration toward the reference speed.
    Type: Grant
    Filed: March 22, 2005
    Date of Patent: May 12, 2009
    Assignee: Mitsui Mining and Smelting Co., Ltd.
    Inventors: Kazuhito Yokomori, Takuya Imai
  • Publication number: 20090118404
    Abstract: It is an object of the present invention to provide a rubber composition which has been improved in mechanical properties with maintaining excellent various properties and is favorably used for a fuel cell sealing member, a hard disc drive top cover gasket member and an electric wire connector sealing member. It is another object of the present invention to provide main bodies mounted with the above respective members obtained by the use of the rubber composition. The rubber composition of the invention comprises a specific ethylene/?-olefin/non-conjugated polyene copolymer in which the non-conjugated polyene is a norbornene-based compound, a specific SiH group-containing compound, and if necessary, an organopolysiloxane. Such a rubber composition of the invention is excellent in mechanical properties and can be particularly favorably used for a fuel cell sealing member, a hard disc drive top cover gasket, an electric wire connector sealing member, etc.
    Type: Application
    Filed: June 28, 2006
    Publication date: May 7, 2009
    Applicants: MITSUI CHEMICALS, INC., NOK CORPORATION
    Inventors: Takashi Hakuta, Kuniyoshi Kawasaki
  • Patent number: 7528091
    Abstract: Solid fine particles which contain a magnesium atom, an aluminum atom and a C1-20 alkoxy group simultaneously, are insoluble in a hydrocarbon solvent, and have an average particle diameter of 3 to 80 ?m, and an olefin polymerization catalyst containing the solid fine particles and a transition metal compound in the groups 3 to 11 in the periodic table, exhibit a very high olefin polymerization activity without combination with an expensive organoaluminum oxy compound or organoboron compound and maintains a high activity in polymerization for a long time, and an olefin polymer excellent in powdery properties can be produced by using the olefin polymerization catalyst. The transition metal compound in the groups 3 to 11 in the periodic table includes a transition metal compound having a ligand containing two or more atoms selected from a boron atom, a nitrogen atom, an oxygen atom, a phosphorus atom and a sulfur atom.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: May 5, 2009
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Yasushi Nakayama, Hideki Bando, Yoshiho Sonobe, Makoto Mitani, Terunori Fujita
  • Publication number: 20090110887
    Abstract: An object of the present invention is to provide a lithographic printing plate precursor which is less apt to suffer from contamination by ablation in forming an image and having an excellent printing performance through image formation. A lithographic printing plate precursor comprises a base material (I), a photosensitive layer (II) containing a light/heat conversion agent on the base material (I), and a layer (III) covering the photosensitive layer (II), wherein the layer (III) covering the photosensitive layer contains both a water-soluble polymer and a hydrophobic polymer, and contains substantially no light/heat conversion agent is provided. The layer (III) covering the photosensitive layer is preferred to contain the water-soluble polymer and the hydrophobic polymer in a proportion of from 10:90 to 90:10 by mass.
    Type: Application
    Filed: June 14, 2006
    Publication date: April 30, 2009
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Takayuki Sanada, Tomoya Terauchi, Akihiro Koide
  • Publication number: 20090108732
    Abstract: A white phosphor is provided, which is a white phosphor comprising a single material, wherein the light-emitting center is one element other than Mn, and emitting white light having excellent color rendering properties by near ultraviolet excitation. The white phosphor is represented by the formula SraSbMgcZndSieOf:Eu2+ (with the proviso that when e=1, 0<(c+d)/(a+c+d)?0.2, 1.8?a+c+d?2.2, 0?b/(b+f)?0.07 and 3.0?b+f?4.4), among which, as one preferred example, the white phosphor is represented by the composition formula (SrO1??S?)x.(Mg1??Zn?O)y.(SiO2)z:Eu2+ (in the formula, 4.5?x/y?27.5, 3?z/y?14.5, 0???0.3 and 0???0.7) is proposed.
    Type: Application
    Filed: May 17, 2007
    Publication date: April 30, 2009
    Applicant: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Tomoyasu Yano, Asuka Sasakura, Jun-ichi Itoh
  • Patent number: 7523548
    Abstract: A process for producing a printed wiring board comprises the steps of depositing a base metal on at least one surface of an insulating film to form a base metal layer and further depositing copper or a copper alloy to form a conductive metal layer, then removing a surface metal layer, which is formed through the above step, by etching to form a wiring pattern, and then treating the base metal layer with a treating liquid capable of dissolving and/or passivating the metal that forms the base metal layer. The printed wiring board so provided comprises an insulating film and a wiring pattern formed on at least one surface of the insulating film, the wiring pattern including a base metal layer deposited on the insulating film surface and a conductive metal layer, the base metal layer for forming the wiring pattern protrudes in a widthwise direction more than the conductive metal layer for forming the wiring pattern.
    Type: Grant
    Filed: December 2, 2004
    Date of Patent: April 28, 2009
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Tatsuo Kataoka, Yoshikazu Akashi, Yutaka Iguchi
  • Patent number: 7524552
    Abstract: To provide a dielectric-layer-provided copper foil or the like for extremely improving the product yield while making the most use of the increase effect of an electric capacity of a thin dielectric layer using the sputtering vapor deposition method. In the case of dielectric-layer-provided copper foils respectively having a dielectric layer on one side of a copper foil, the dielectric layer 6 is an inorganic-oxide sputter film having a thickness of 1.0 ?m or less and formed on the one side of the copper foil in accordance with the sputtering vapor deposition method and the dielectric-layer-provided copper foils for respectively forming a capacitor layer, characterized in that a pit-like defective portion generated on the inorganic-oxide sputter film is sealed by polyimide resin are used.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: April 28, 2009
    Assignee: Mitsui Mining and Smelting Co., Ltd.
    Inventors: Toshiko Yokota, Tetsuhiro Matsunaga, Susumu Takahashi, Hideaki Matsushima, Takuya Yamamoto, Makoto Dobashi
  • Patent number: 7524900
    Abstract: A composition having gas-barrier properties, which can produce a resin film having gas-barrier properties under high humidity conditions and high abrasion resistance, and a coating film formed by thermally treating a film-like product of the composition having gas-barrier properties and a method for producing the same are provided. A composition having gas-barrier properties, comprising a water-soluble polymer having hydroxyl group (A), a water-soluble polymer having carboxyl group (B), a metal alkoxide and/or a hydrolysis condensate thereof (C), and an esterification catalyst (E), such that the weight ratio of the component (A) and the component (B) is 97/3 to 3/97, and the component (C) is contained in an amount ranging from 1 part by weight to 400 parts by weight, while the component (E) is contained in an amount ranging from 0.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: April 28, 2009
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Katsunori Nishiura, Kazuyuki Fukuda, Toshihiko Takaki
  • Publication number: 20090100704
    Abstract: The present invention provides a resin composition capable of providing foams (non-crosslinked and crosslinked foams) which have low specific gravity and low compression set (CS) and are excellent in tensile strength properties, tear strength properties and vibration-damping properties at room temperature to high temperatures, and a foam of the resin composition. The resin composition for foams of the present invention comprises 5 to 95 parts by weight of an ethylene/?-olefin copolymer (A) and 5 to 95 parts by weight of a hydrogenated copolymer (B) obtained by hydrogenating a copolymer comprising a conjugated diene and a vinyl aromatic compound, and is characterized in that the hydrogenated copolymer (B) does not have a glass transition point of not higher than ?10° C. when measured at a frequency of 1 Hz in accordance with JIS-K7198.
    Type: Application
    Filed: May 17, 2006
    Publication date: April 23, 2009
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Takayuki Kajihara, Eiji Shiba, Masayoshi Yamaguchi, Kiminori Noda