Patents Assigned to Mitsui
  • Binder resin for toner, toner and method for producing same
    Patent number: 8586273
    Abstract: Disclosed is a binder resin for a toner containing at least a carboxyl group-containing vinyl resin (C), a glycidyl group-containing vinyl resin (E), a reaction product of the vinyl resins and a saturated crystalline polyester (S), wherein the saturated crystalline polyester (S) has a predetermined melting point and a predetermined metal component (M), and the binder resin for a toner has a predetermined loss modulus (G?) and a predetermined storage modulus (G?).
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: November 19, 2013
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Hiroshi Matsuoka, Hiroyuki Takei, Linwood Blanton Muire, III
  • Polymerization catalyst for polythiourethane-based optical material, polymerizable composition containing the catalyst, optical material obtained from the composition, and method for preparing the optical material
    Patent number: 8586694
    Abstract: The polymerization catalyst for a polythiourethane-based optical material of the present invention includes a sulfonate represented by the following general formula (1). Furthermore, in the formula, R1, R2, R3 and R4 each independently represent an alkyl group having 1 to 18 carbon atoms, R1, R2, R3 and R4 may be bonded to each other to form a ring. R5 represents a hydrogen atom or an alkyl group having 1 to 18 carbon atoms, and X represents a nitrogen atom or a phosphorus atom.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: November 19, 2013
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Masanori Iwazumi, Nobuo Kawato, Mamoru Tanaka, Hidetoshi Hayashi, Seiichi Kobayashi
  • Polymerization catalyst for polythiourethane optical material, polymerizable composition containing the same, polythiourethane resin obtained from the composition, and process for producing the resin
    Patent number: 8586695
    Abstract: By using an amine hydrochloride represented by the formula (1) as a catalyst, a polythiourethane resin which is suitably used for a transparent resin for optical use, can be obtained without using an organotin compound which has been conventionally used as a catalyst for polythiourethane resins and without being affected by the acidity of an additive: wherein R1, R2 and R3 independently represent a monovalent or higher valent linear aliphatic, branched aliphatic, cyclic aliphatic or aromatic organic residue which may have a hydroxyl group or an amino group; and R1, R2 and R3 may be arbitrarily bonded to each other to form a ring.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: November 19, 2013
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Nobuo Kawato, Masanori Iwazumi, Hidetoshi Hayashi, Seiichi Kobayashi
  • AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT ELEMENT USING SAME
    Publication number: 20130299806
    Abstract: To provide an organic EL element material that is capable of enhancing the light emission efficiency and the lifetime of the element as compared to an ordinary organic EL element material, and an organic EL element using the same. Specifically, to provide an aromatic amine derivative represented by Ar1Ar2Ar3N, and an organic EL element using the same. Representative compounds include the following.
    Type: Application
    Filed: January 13, 2012
    Publication date: November 14, 2013
    Applicants: MITSUI CHEMICALS, INC, IDEMITSU KOSAN CO., LTD.
    Inventors: Tomoki Kato, Nobuhiro Yabunouchi, Takahiro Fujiyama
  • SURFACE-TREATED COPPER FOIL
    Publication number: 20130302635
    Abstract: An object of the present invention is to provide a copper foil excellent in softening resistance performance which reduces decrease in tensile strength after heat treatment at about 350° C. to 400° C. In order to achieve the object, a surface-treated copper foil provided with a rust-proofing treatment layer on both surfaces of a copper foil in which a rust-proofing treatment layer is constituted by zinc, and the either rust-proofing treatment layer is a zinc layer having zinc amount of 20 mg/m2 to 1,000 mg/m2; and the copper foil contains one or two or more of small amount elements selected from carbon, sulfur, chlorine and nitrogen, and a sum amount thereof is 100 ppm or more is adopted.
    Type: Application
    Filed: November 22, 2011
    Publication date: November 14, 2013
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Shinichi Obata, Shinya Hiraoka, Fumiaki Hosokoshi, Ayumu Tateoka, Hideaki Matsushima, Koichi Miyake, Sakiko Tomonaga, Tomoyuki Maeda
  • Method of manufacturing laminated rotor core
    Patent number: 8578592
    Abstract: A method of manufacturing a laminated rotor core, includes a first process of placing segment dummy plates between an iron core and a die, each of each segment dummy plates covering one or more of plural magnet insertion portions and including a resin injection hole communicating to the one or more of the magnet insertion portions; a second process of injecting a resin from resin reservoir parts formed in any one of an upper die and a lower die holding the iron core through the resin injection hole of each segment dummy plate to the corresponding one or more of the magnet insertion portions; and a third process of detaching the segment dummy plates together with excess resin after the resin injected to the one or more of the magnet insertion portions is cured.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: November 12, 2013
    Assignee: Mitsui High-Tec, Inc.
    Inventors: Akira Nagai, Mei Arazoe, Go Kato
  • Process for producing alkylated aromatic compound and process for producing phenol
    Patent number: 8581016
    Abstract: The present invention provides an industrially practical process where a ketone and an aromatic compound are directly reacted to obtain a corresponding alkylated aromatic compound in a single reaction step. The process for producing an alkylated aromatic compound is characterized in that it comprises reacting an aromatic compound, a ketone and hydrogen in the presence of a solid acid substance and a catalyst composition comprising at least one metal selected from the group consisting of Co, Re, Ni and a platinum group metal.
    Type: Grant
    Filed: November 1, 2007
    Date of Patent: November 12, 2013
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Toshihiro Takai, Michiaki Umeno, Shinobu Aoki, Terunori Fujita, Tsuneyuki Ohkubo
  • METHOD OF MANUFACTURING LAMINATED STATOR CORE AND LAMINATED STATOR CORE MANUFACTURED BY THE METHOD
    Publication number: 20130293060
    Abstract: A method of manufacturing a laminated stator core and a laminated stator core manufactured by the method, the method capable of forming a recess 21 over one or both of (a) a lateral portion of an ear piece C of the stator core sheet A to be formed adjacent to the stator core sheet B and (b) a peripheral portion of the annular yoke piece D continuing to the lateral portion, the peripheral portion beside the ear piece C; fitting one ear piece E of the stator core sheet B with a gap in the recess 21; and thereby improving a material yield when the stator core sheets 13 are formed from the strip material 14.
    Type: Application
    Filed: February 2, 2012
    Publication date: November 7, 2013
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, MITSUI HIGH-TEC, INC.
    Inventors: Yusuke Hasuo, Shinya Sano, Eiji Yanagida
  • SURFACE-TREATED COPPER FOIL
    Publication number: 20130295407
    Abstract: An object of the present invention is to provide a copper foil excellent in softening resistance performance which reduces decrease in tensile strength after heat treatment at about 350° C. to 400° C. In order to achieve the object, a surface-treated copper foil provided with a rust-proofing treatment layer on both surfaces of a copper foil in which a rust-proofing treatment layer is constituted by zinc alloy, and the either rust-proofing treatment layer is a zinc alloy layer having zinc amount of 20 mg/m2 to 1,000 mg/m2; and the copper foil contains one or two or more of small amount elements selected from carbon, sulfur, chlorine and nitrogen, and a sum amount thereof is 100 ppm or more is adopted.
    Type: Application
    Filed: November 22, 2011
    Publication date: November 7, 2013
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Shinichi Obata, Shinya Hiraoka, Fumiaki Hosokoshi, Ayumu Tateoka, Hideaki Matsushima, Koichi Miyake, Sakiko Tomonaga, Tomoyuki Maeda
  • Machining center including a control board arranged side by side with an operator door
    Patent number: 8573908
    Abstract: A machining center wherein improved workability of a control board, a widened movable zone of a column and a reduced installation space are achieved. The machining center includes a column movably supported on a column sliding portion in an X-axis direction, a work table movably supported on a table sliding portion in a Z-axis direction, a main spindle head slidably supported on the column in a Y-axis direction, and an automatic tool changer disposed at an inner side of the column sliding portion. The control board is arranged at an opposite side of the automatic tool changer and is provided in parallel with a side surface of a front portion of a table sliding portion and is arranged side by side with an openable/closable door for an operator provided on a side surface of a cover in a vicinity of a rear end portion of the side surface of the table sliding portion.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: November 5, 2013
    Assignees: JTEKT Corporation, Mitsui Seiki Kogyo Co., Ltd.
    Inventors: Kozo Imanishi, Yasukazu Yamaguchi, Yasutaka Uchimura, Masanao Kato
  • COPPER FOIL FOR NEGATIVE ELECTRODE CURRENT COLLECTOR OF LITHIUM ION SECONDARY BATTERY, NEGATIVE ELECTRODE MATERIAL OF LITHIUM ION SECONDARY BATTERY, AND METHOD FOR SELECTING NEGATIVE ELECTRODE CURRENT COLLECTOR OF LITHIUM ION SECONDARY BATTERY
    Publication number: 20130288122
    Abstract: A copper foil for a negative electrode current collector of a lithium ion secondary battery enables prevention of deformation of the current collector even if the charge/discharge operation is repeatedly carried out. In a copper foil for a negative electrode current collector of a lithium ion secondary battery, a 10 mm wide test specimen composed of the copper foil is subjected to a tensile test, a maximum strain loaded on the copper foil is 30 N or higher in a region where “Value L” represented by the following expression is 0.
    Type: Application
    Filed: November 8, 2011
    Publication date: October 31, 2013
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Hideaki Matsushima, Sakiko Tomonaga, Koichi Miyake
  • POLYMER PARTICLE, AQUEOUS DISPERSION INCLUDING THE SAME, AND FLUORORESIN COATING COMPOSITION USING THE SAME
    Publication number: 20130289175
    Abstract: The present invention provides a polymer particle comprising a polymer and a filler contained therein, wherein the polymer is soluble in an organic solvent and is also water insoluble, and wherein the polymer particle contains from 5 to 500 parts by weight of filler per 100 parts by weight of polymer, and a mean particle size of 75 ?m or less. The invention also provides an aqueous dispersion including this particle; an aqueous fluororesin coating composition that uses this aqueous dispersion; and a fluororesin laminate or layered coating having a layer obtained from this fluororesin coating composition.
    Type: Application
    Filed: March 15, 2013
    Publication date: October 31, 2013
    Applicants: DUPONT-MITSUI FLUOROCHEMICALS COMPANY, LTD., E I DU PONT DE NEMOURS AND COMPANY
    Inventor: YUQING LIU
  • POLYIMIDE RESIN COMPOSITION AND LAMINATE INCLUDING POLYIMIDE RESIN COMPOSITION
    Publication number: 20130288120
    Abstract: To provide a resin composition that contains a solvent-soluble polyimide and can provide a film exhibiting high viscoelasticity and flexibility at high temperatures. To attain this, a polyimide resin composition is provided that includes a polyimide having a polycondensation unit of a tetracarboxylic acid dianhydride and a diamine, wherein the tetracarboxylic acid dianhydride includes an (?1) tetracarboxylic acid dianhydride represented by general formula (1), or the diamine includes an (?1) aromatic diamine represented by general formula (2), the diamine includes an (?2) aliphatic diamine represented by general formula (3) or (4), a total amour of the (?1) tetracarboxylic acid dianhydride and the (?1) aromatic diamine is 5 to 49 mol % with respect to a total amount of the tetracarboxylic acid dianhydride and the diamine, and an amine equivalent of the polyimide is 4,000 to 20,000.
    Type: Application
    Filed: July 6, 2012
    Publication date: October 31, 2013
    Applicant: MITSUI CHEMICALS INC.
    Inventors: Kenji Iida, Yusuke Tomita, Kiyomi Imagawa, Shigeo Kiba
  • Encapsulating material for solar cell
    Patent number: 8569437
    Abstract: A solar cell encapsulated with an encapsulating material which is a non-crystalline or low-crystalline ?-olefin-based copolymer or its composition (I). The composition (C) can contain 50 to 100 parts by weight of non-crystalline ?-olefin polymer (A) which meets the following requirements: (a) the ?-olefin having 3 to 20 carbon atoms is not less than 20 mol %, (b) practically no melt peak as measured by a differential scanning calorimeter is observed, and (c) the Mw/Mn is not more than 5, and 50 to 0 parts by weight of crystalline ?-olefin polymer (B) (the total of (A) and (B) being 100 parts by weight). The non-crystalline or low-crystalline ?-olefin copolymer may also have a crystallinity of not higher than 40% as measured by use of X rays.
    Type: Grant
    Filed: January 2, 2013
    Date of Patent: October 29, 2013
    Assignees: Du Pont-Mitsui Polychemicals, Co., Ltd., Mitsui Chemicals Tohcello, Inc.
    Inventors: Koichi Nishijima, Akira Yamashita
  • Adhesive and laminate made with the same
    Patent number: 8563138
    Abstract: Provided is a polypropylene-based adhesive having an MFR of 2.7 g/10 min or higher, as measured at 230 ° C. under a load of 2.16 kg, comprising a composition which contains 5-95 parts by weight of (A) an isotactic polypropylene, 95-5 parts by weight of (B) a propylene/ethylene random copolymer, and 0-40 parts by weight of (C) an ethylene/propylene random copolymer, wherein 100 parts by weight of the composition is graft modified with 0.001-5 parts by weight of an unsaturated carboxylic acid and/or a derivative thereof, and wherein (B) is characterized by the following (i) to (iii): (i) the propylene/ethylene random copolymer (B) contains 60-90 mol % units derived from propylene and 10-40 mol % units derived from ethylene; (ii) the melting point (Tm) is in the range of 40-120 ° C.; and (iii) the molecular weight distribution (Mw/Mn) is in the range of 1.0-3.0.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: October 22, 2013
    Assignee: Mitsui Chemicals Inc.
    Inventors: Shigeyuki Yasui, Seiji Ota, Takashi Sakuma
  • A-87774 compounds or salts thereof, production method thereof and agrochemicals containing the same as active ingredient
    Patent number: 8563266
    Abstract: There are provided novel A-87774 compounds or salts thereof having a herbicidal activity or a plant growth regulating activity, a microorganism producing the same, a production method thereof, an agrochemical (in particular, herbicide or plant growth regulator) containing the same as an active ingredient, a method for using the same, and a culture of the microorganism.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: October 22, 2013
    Assignee: Mitsui Chemicals Agro, Inc.
    Inventors: Yoshio Shigematsu, Yoshiko Sugie, Masaaki Kizuka
  • Amide derivatives, process for preparation thereof and use thereof as insecticide
    Patent number: 8563736
    Abstract: A compound represented by Formula (1): The compound can be used as insecticides.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: October 22, 2013
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Kei Yoshida, Takeo Wakita, Hiroyuki Katsuta, Akiyoshi Kai, Yutaka Chiba, Kiyoshi Takahashi, Hiroko Kato, Nobuyuki Kawahara, Michikazu Nomura, Hidenori Daido, Junji Maki, Shinichi Banba
  • Method for producing optically active alcohol
    Patent number: 8563786
    Abstract: Disclosed is a method for producing an optically active alcohol including reacting a titanium compound, an aromatic magnesium compound and a carbonyl compound in the presence of an optically active biphenol compound having a predetermined structure and an ether compound having a predetermined structure.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: October 22, 2013
    Assignees: Mitsui Chemicals, Inc., Agency for Science, Technology and Research
    Inventors: Manabu Wadamoto, Kazuhiko Yoshinaga, Takushi Nagata, Seayad Abdul Majeed, Ramalingam Balamurugan, Chai Christina L. L.
  • RESIN COMPOSITION, AND PROTECTIVE FILM, DRY FILM, CIRCUIT BOARD, AND MULTILAYER CIRCUIT BOARD CONTAINING SAME
    Publication number: 20130269985
    Abstract: A resin composition which is capable of forming a film that has excellent heat resistance and slidability/bendability; a protective film for circuits, which uses the resin composition; and a dry film or the like which comprises the protective film are provided. Other aspects are a circuit board and a multilayer circuit board, each of which has excellent heat resistance and slidability/bendability. Furthermore, a protective film for circuit boards is provided, which is arranged in contact with a circuit of a printed wiring board, and contains a polyoxazolidone resin that has a weight average molecular weight of 3×104 or more.
    Type: Application
    Filed: December 26, 2011
    Publication date: October 17, 2013
    Applicant: Mitsui Chemicals Tohcello, Inc.
    Inventors: Shuji Tahara, Kiyomi Yasuda
  • LATCH DEVICE FOR VEHICLE
    Publication number: 20130270845
    Abstract: A latch device for a vehicle includes: a latch configured to hold and engage with a striker; and a latchet configured to maintain an engagement condition between the striker and the latch by meshing with the latch. Between a meshing surface of the latch and a meshing surface of the latchet that mesh with each other, one meshing surface is formed narrower than the other meshing surface. A supporting member is arranged at a side of the latch or the latchet having the one meshing surface narrower than the other meshing surface with a gap provided between a side face of the latch or the latchet and the supporting member. A periphery of the supporting member including the end face is covered with a resin material and the gap is filled up with the resin material.
    Type: Application
    Filed: March 7, 2013
    Publication date: October 17, 2013
    Applicant: MITSUI KINZOKU ACT CORPORATION
    Inventor: Tomoharu NAGAOKA