Patents Assigned to Mitsui
  • Patent number: 9932444
    Abstract: To provide: a semiaromatic polyamide which has excellent moldability, heat resistance, chemical resistance and mechanical characteristics; and a molded article of this semiaromatic polyamide. A semiaromatic polyamide (I) of the present invention contains 35-50% by mole of a structural unit derived from terephthalic acid [A], 25-40% by mole of a structural unit derived from isophthalic acid [B], 15-35% by mole of a structural unit derived from an aliphatic dicarboxylic acid [C] (provided that the total of [A], [B] and [C] is 100% by mole), and a structural unit derived from an aliphatic diamine [D] having 4-12 carbon atoms. The molar ratio ([A]/[B]) is from 65/35 to 50/50, and the molar ratio ([C]/[B]) is from 30/70 to 50/50. The melting enthalpy ([increment]H) of the semiaromatic polyamide (I) as determined by differential scanning calorimetry (DSC) is 20-40 mJ/mg, and the intrinsic viscosity of the semiaromatic polyamide (I) is 0.7-1.6 dl/g.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: April 3, 2018
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Isao Washio, Hiroki Ebata, Fumio Kageyama, Toshitaka Kosaka, Hideto Ogasawara, Akinori Amano, Nobuhiro Takizawa
  • Patent number: 9935530
    Abstract: Provided are a method for manufacturing band-shaped stator core sheets, capable of efficiently separating the band-shaped stator core sheets having engaged magnetic pole pieces, and a die apparatus used therefor. The method comprises placing tips of magnetic pole pieces 12, 13 of first and second band-shaped stator core sheets 10, 11 on inner peripheries of yoke pieces 16, 15, a slot punching step for forming gaps of the magnetic pole pieces 12, 13, a shear-cutting step for cutting the tips of the magnetic pole pieces 12, 13 from the inner peripheries of the yoke pieces 16, 15, respectively, a correction step for returning the magnetic pole pieces 12, 13 bent by the shear-cutting step to their original states, and a separation step for separating the first and second band-shaped stator core sheets 10, 11 with the magnetic pole pieces 12, 13 pressed back by the correction step.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: April 3, 2018
    Assignee: MITSUI HIGH-TEC, INC.
    Inventors: Yohei Toyomaru, Shusaku Munaoka, Yoshiharu Kouno
  • Patent number: 9932763
    Abstract: A vehicle door opening device opens and closes a door with a motor. In the vehicle door opening device, an opening reversible member on which an opening cable is wound is disposed on a top surface of a center guide rail, and a closing reversible member on which a closing cable is wound is disposed under a lower surface of the center guide rail. A moving member moves along the center guide rail and comprises a closing coupling portion to which the closing cable is coupled and an opening coupling portion to which the opening cable coupled. The closing cable moves along the lower surface of the center guide rail, and the opening cable moves along the top surface of the center guide rail.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: April 3, 2018
    Assignee: Mitsui Kinzoku Act Corporation
    Inventors: Naoya Seto, Hirotsugu Kinoshita, Shuntaro Kimura, Hiroshi Ishigaki
  • Patent number: 9933635
    Abstract: The optical material of the present invention contains one or more kinds of ultraviolet absorber (a) having a maximum absorption peak within a range of equal to or greater than 350 nm and equal to or less than 370 nm, in which a light transmittance of the optical material having a thickness of 2 mm satisfies the following characteristics (1) to (3), (1) a light transmittance at a wavelength of 410 nm is equal to or less than 10%, (2) a light transmittance at a wavelength of 420 nm is equal to or less than 70%, and (3) a light transmittance at a wavelength of 440 nm is equal to or greater than 80%.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: April 3, 2018
    Assignee: MITSUI CHEMICALS INC.
    Inventors: Toshiya Hashimoto, Naoyuki Kakinuma, Kouya Kojima
  • Publication number: 20180086864
    Abstract: Medical instrument including a substrate using a fluorine-containing cyclic olefin polymer containing a structural unit represented by General Formula (1), in which the substrate has one surface where the substrate comes into contact with cells, and the substrate is provided with a convex-concave structure on the one surface, a ratio (L1/L2) of a width (L1) between convexities formed by the convex-concave structure and a maximum diameter (L2) of inoculated cells per cell in the cells is 1 to 300, and the cells do not adhere to or attach to the one surface provided with the convex-concave structure and the medical instrument promotes cell proliferation. wherein R1 to R4 are defined.
    Type: Application
    Filed: February 15, 2016
    Publication date: March 29, 2018
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Tadahiro SUNAGA, Takashi ODA, Hisanori OHKITA, Hiroshi MIYASAKO
  • Publication number: 20180086904
    Abstract: Provided is a thermoplastic elastomer composition with which it is possible to obtain a molded article having exceptional low-temperature impact resistance. A thermoplastic elastomer composition is produced that contains a crystalline olefin polymer (A) and an ethylene-?-olefin (C4-20)—unconjugated polyene copolymer (B) that satisfies requirements (1) and (2). (1) The B value represented by the equation: ([EX]+2[Y])/(2×[E]×([X]+[Y])) is 1.20 or higher. [E], [X] and [Y] respectively indicate the molar fraction of structural units derived from ethylene, the molar fraction of structural units derived from C4-20 ?-olefin and the molar fraction of structural units derived from unconjugated polyene, and [EX] indicates the diad chain fraction of structural units derived from ethylene-structural units derived from C4-20 ?-olefin. (2) The molar ratio of structural units derived from ethylene with respect to structural units derived from ?-olefin (C4-20) of copolymer (B) is 40/60-90/10.
    Type: Application
    Filed: March 17, 2016
    Publication date: March 29, 2018
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Hayato Kurita, Mizuki Wakana, Takahiro Kondo, Hideki Mochizuki, Yuji Noguchi, Tatsuya Sakai
  • Patent number: 9924597
    Abstract: A material for forming of the capacitor layer which generates no crack in drilling on the dielectric layer of the capacitor in manufacturing of a highly multilayered printed wiring board embedded a capacitor circuit. Copper clad laminate for forming of an embedded capacitor layer of a multilayered printed wiring board including an embedded capacitor circuit having a layer structure of copper layer/dielectric layer of the capacitor/copper layer in an inner layer characterized in that the composite elastic modulus Er of the resin film constituting the dielectric layer of the capacitor along the thickness direction is less than 6.1 GPa is employed.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: March 20, 2018
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Fujio Kuwako, Toshifumi Matsushima, Toshihiro Hosoi
  • Patent number: 9920026
    Abstract: A compound represented by Formula (1): The compound can be used as insecticides.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: March 20, 2018
    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
  • Publication number: 20180076700
    Abstract: A method of manufacturing a rotor core having a plurality of core members stacked together includes determining weight imbalances for the plurality of core members with respect to a central axis of the rotor core; combining the weight imbalances of the plurality of core members to determine a weight distribution of the rotor core; and displacing the weight imbalances of one or more of the plurality of core members to adjust a position of the weight distribution of the rotor core with respect to the central axis.
    Type: Application
    Filed: September 4, 2017
    Publication date: March 15, 2018
    Applicant: Mitsui High-tec, Inc.
    Inventors: Akira NAGAI, Kenji KATSUKI, Go KATO
  • Publication number: 20180072880
    Abstract: A thermoplastic elastomer composition obtained by dynamically crosslinking an ethylene/?-olefin/non-conjugated polymer copolymer (A), a polyolefin resin (B), a softener (C) in an amount of 1 to 200 parts by mass per 100 parts by mass of the total of the copolymer (A) and the resin (B), and a crosslinking agent (D) by the use of a batch mixer under the conditions satisfying the requirements (1) to (4).
    Type: Application
    Filed: March 23, 2016
    Publication date: March 15, 2018
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Hayato KURITA, Kazuyoshi KANEKO, Masahiro ENNA, Tatsuya ENOMOTO, Hideki MOCHIZUKI
  • Publication number: 20180072877
    Abstract: [Problem] The purpose of the invention is to provide: a thermoplastic elastomer composition capable of providing molded articles that are lightweight, have better oil resistance than those provided by conventional cross-linked thermoplastic elastomers, and have hardness and mechanical properties such as tensile strength and tensile elongation that are equal to or superior to those provided by conventional cross-linked thermoplastic elastomers; and an ethylene/?-olefin/unconjugated polyene copolymer having little compression set at low temperature as well as flexibility and an excellent balance of rubber elasticity at low temperature and tensile strength at normal temperature.
    Type: Application
    Filed: March 17, 2016
    Publication date: March 15, 2018
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Kotaro ICHINO, Tomohiro YAMAGUCHI, Yukio AITA, Yuji NOGUCHI
  • Publication number: 20180076047
    Abstract: A method for manufacturing a filling planarization film, the method including: a first coating step of applying a first coating liquid, containing a polyamine and a first solvent, to a region including a recessed part of a member having the recessed part, to fill the first coating liquid into the recessed part; and a second coating step of applying a second coating liquid, containing an organic substance having two or more carboxyl groups and a second solvent having a boiling point of 200° C. or less and an SP value of 30 (MPa)1/2 or less, to the region including the recessed part of the member into which the first coating liquid has been filled.
    Type: Application
    Filed: March 24, 2016
    Publication date: March 15, 2018
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Hirofumi TANAKA, Yasuhisa KAYABA, Hiroko WACHI, Koji INOUE, Shoko ONO
  • Patent number: 9914820
    Abstract: Provided is a lump that is suitable to be used with rubber and compounding agents in producing rubber products with low hardness, of which an uniform kneaded product can be quickly obtained while kneading to produce rubber products, and that does not easily change its shape even when stored for a long period of time.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: March 13, 2018
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Kotaro Ichino, Yoshiharu Kikuchi
  • Publication number: 20180066402
    Abstract: A railroad rail track pad composition including a particular ethylene•?-olefin•non-conjugated polyene random copolymer (A), clay (B), and a sulfur atom-containing silane coupling agent (C) is used in order to lower the viscosity of a rubber composition that is a raw material for molding while suppressing lowering of the rubber elasticity of a crosslinked and molded product to be obtained. In addition, a molded product obtained by crosslinking the composition, particularly a molded product obtained by crosslinking and foam-molding the composition, is provided with rubber elasticity that is suitable as a railroad rail track pad.
    Type: Application
    Filed: March 11, 2016
    Publication date: March 8, 2018
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Tatsuya SAKAI, Yuji ISHII, Kiyohide INOMATA, Kotaro ICHINO
  • Publication number: 20180066082
    Abstract: Provided is a polymerizable composition including an alkyne compound represented by the following general formula (1): wherein, in general formula (1), X1 and X2 represent a sulfur atom, an oxygen atom, or an NH group and may be the same or different from each other, Q represents an alkylene group having 1 or 2 carbon atoms, a carbonyl group, or a thiophenylene group in which one of carbon atoms is substituted by an antimony atom, R1 and R2 represent an alkylene group having 1 or 2 carbon atoms and may be the same or different from each other, and m and n each represent 0 or 1.
    Type: Application
    Filed: February 8, 2016
    Publication date: March 8, 2018
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Masakazu MURAKAMI, Tomoyuki ANDO
  • Patent number: 9911714
    Abstract: A lead frame includes adjacent die pads which lie adjacent to each other; grounding leads extended from the adjacent die pads; a connecting bar by which the grounding leads extended from the adjacent die pads are interconnected. The grounding leads and the connecting bar are formed to be thinner at one surface than a maximum thickness of leads of the lead frame, the grounding leads extended from the adjacent die pads are aligned on a common axis while providing the connecting bar between the grounding leads, and a support projection is provided at the one surface on the connecting bar in the common axis.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: March 6, 2018
    Assignee: MITSUI HIGH-TEC, INC.
    Inventor: Takahiro Ishibashi
  • Patent number: 9908106
    Abstract: The invention relates to a catalyst carrier for exhaust gas purification catalyst which contains a metal phosphate containing Zr, and it provides a new catalyst carrier which exhibits excellent NOx purification performance in a high temperature region. The invention proposes a carrier for exhaust gas purification catalyst containing a metal phosphate which has a NASICON type structure and contains Zr.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: March 6, 2018
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Masato Machida, Yuki Nagao, Michiyo Matsumoto, Yunosuke Nakahara
  • Patent number: 9908983
    Abstract: Means for solving the problems The thermoplastic resin composition (X1) of the present invention comprises (A1), (B1), (C1), and optionally (D1) below: 1 to 90 wt % of an isotactic polypropylene (A1); 9 to 98 wt % of a propylene/ethylene/?-olefin copolymer (B1) containing 45 to 89 mol % of propylene-derived structural units, 10 to 25 mol % of ethylene-derived structural units, and optionally, 0 to 30 mol % of C4-C20 ?-olefin-derived structural units (a1); 1 to 80 wt % of a styrene-based elastomer (C1); and 0 to 70 wt % of an ethylene/?-olefin copolymer (D1) whose density is in the range of 0.850 to 0.910 g/cm3, wherein (A1)+(B1)+(C1)+(D1)=100 wt %.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: March 6, 2018
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Hiroshi Hoya, Kiminori Noda, Norihide Inoue, Hiroshi Uehara, Eiji Shiba, Masayoshi Yamaguchi, Manabu Kawamoto, Akira Yamashita
  • Publication number: 20180057860
    Abstract: Disclosed is a thermostable DNA polymerase preparation which can illimitably reduce the risk of false positivity in the detection of a subject microorganism utilizing a gene amplification reaction and therefore enables the selective amplification of DNA for detecting the subject microorganism even when the amount of the subject microorganism is small and therefore the amount of DNA collected therefrom is extremely small, and can be produced at a reduced cost. Also disclosed is a method for quantifying or quantifying/identifying a subject organism to be detected rapidly, conveniently and with high sensitivity using the preparation of the present invention.
    Type: Application
    Filed: August 28, 2017
    Publication date: March 1, 2018
    Applicants: Hokkaido Mitsui Chemicals Inc., National University Corporation University of Toyama
    Inventors: Homare Tabata, Hiroshi Minami, Hideki Niimi, Isao Kitajima, Tomohiro Ueno, Shiroh Hayashi, Masashi Mori
  • Publication number: 20180055906
    Abstract: A method for destroying exosomes of the present invention includes a step of preparing an antimicrobial peptide; and a step of allowing the antimicrobial peptide to coexist with an exosome to destroy the exosome.
    Type: Application
    Filed: March 11, 2016
    Publication date: March 1, 2018
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Ryota FUJII, Miwa IKEDA, Kazuya MATSUMOTO