Patents Assigned to Mitsui
  • Patent number: 11652237
    Abstract: Provided is a nonaqueous electrolyte solution for batteries, which contains an additive A that is composed of a boron compound represented by formula (1), and an additive B that has a lower reductive decomposition potential than the Additive A, in which n represents an integer from 1 to 5, M+ represents an Li+ ion or an H+ ion, and when n is an integer from 2 to 5, more than one M+ may be the same as or different from each other.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: May 16, 2023
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Satoko Fujiyama, Kei Sugawara
  • Patent number: 11652216
    Abstract: An electrode catalyst layer for fuel cells capable of effectively preventing reduction of cell voltage in a high current density region. The electrode catalyst layer contains a catalyst-on-support composed of a support made of a conductive inorganic oxide having a catalyst supported thereon and a hydrophilic material. The hydrophilic material is an agglomerate including hydrophilic conductive particles. The content of the hydrophilic material in the catalyst layer is 2 mass % or higher and lower than 20 mass % relative to the sum of the support and the hydrophilic material. The ratio of the particle size d1 of the hydrophilic particles to the particle size D of the catalyst-on-support is 0.5 to 3.0. The ratio of the particle size d2 of the hydrophilic material to the thickness T of the catalyst layer is 0.1 to 1.2.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: May 16, 2023
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Satoshi Mogi, Hiromu Watanabe, Ryoma Tsukuda, Naohiko Abe
  • Publication number: 20230145824
    Abstract: A member for electric conduction, comprising a metal member and a resin member that is joined to at least a part of a surface of the metal member, the metal member having a roughness index, which is obtained by dividing a true surface area (m2) measured by a krypton adsorption method by a geometric surface area (m2), of 4.0 or more.
    Type: Application
    Filed: January 29, 2021
    Publication date: May 11, 2023
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Kazuki KIMURA, Tomoki TORII, Takahiro TOMINAGA, Kai MORIMOTO, Shinji NAKAJIMA, Isao WASHIO, Nobuyoshi SHIMBORI, Junya SHIMAZAKI, Jingjun ZHANG, Akinori AMANO, Haruka DOI
  • Publication number: 20230143385
    Abstract: A lithium secondary battery includes: a positive electrode that includes a positive electrode active material including a compound represented by the following Formula (X) and a binder including a polyvinylidene fluoride having a weight average molecular weight of from 300,000 to 950,000; a negative electrode; and a non-aqueous electrolytic solution that includes at least one of lithium difluorophosphate or lithium monofluorophosphate. In Formula (X), each of a, b, and c is independently more than 0 but less than 1.00, and the sum of a, b, and c is from 0.99 to 1.00.
    Type: Application
    Filed: March 18, 2021
    Publication date: May 11, 2023
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Kei SUGAWARA, Hidenobu NOGI, Keita NAGAKAWA
  • Patent number: 11647675
    Abstract: A piezoelectric substrate attachment structure including a press section pressed by contact, a piezoelectric substrate provided adjacent to the press section, and a base section provided adjacent to the piezoelectric substrate on an opposite side from the press section. The following relationship Equation (a) is satisfied: da/E?a<db/E?b??(a) wherein da is a thickness of the press section in a direction of adjacency to the piezoelectric substrate, E?a is a storage modulus of the press section from dynamic viscoelastic analysis, db is a thickness of the base section in the adjacency direction, and E?b is a storage modulus of the base section from dynamic viscoelastic analysis.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: May 9, 2023
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Kazuhiro Tanimoto, Masahiko Mitsuzuka, Mitsunobu Yoshida
  • Patent number: 11642870
    Abstract: A glass carrier-attached copper foil is provided that is suitable for production of a desired circuit mounting board ensuring electric conduction over the entire copper layer, reducing separation of the copper layer at the cut edge even if the copper foil is downsized, and having an intended circuit pattern with a fine pitch. The glass carrier-attached copper foil includes a glass carrier, a release layer provided on the glass carrier, and a copper layer provided on the release layer. The release layer has a function to enable release of the copper layer from the glass carrier. The glass carrier-attached copper foil has a plurality of releasable regions including the release layer and an unreleasable region not including the release layer. The unreleasable region has a pattern defining the releasable regions.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: May 9, 2023
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventor: Rintaro Ishii
  • Publication number: 20230137212
    Abstract: A photocurable composition includes a photopolymerizable component and a photopolymerization initiator. When a test piece with a length of 39 mm, a width of 8 mm, and a thickness of 4 mm, is produced by photofabrication under conditions in which the photocurable composition is irradiated with visible light having a wavelength of 405 nm at an irradiation dose of 12 mJ/cm2 to form a cured layer with a thickness of 100 µm, the cured layer is stacked in a thickness direction thereof to form a rectangular fabrication product with a length of 39 mm, a width of 8 mm, and a thickness of 4 mm, and the fabrication product is irradiated with ultraviolet rays having a wavelength of 365 nm at an irradiation dose of 10 J/cm2 to produce the test piece, a total fracture work of the test piece measured in compliance with ISO20795-1:2008 is 1100 J/m2 or more.
    Type: Application
    Filed: March 22, 2021
    Publication date: May 4, 2023
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Toshikazu SAKAMAKI, Mai KIMURA, Hiroki MURAI, Takaaki HAYASHI, Suguru ENDO
  • Patent number: 11639413
    Abstract: A polymerizable composition for optical materials of the present invention includes a polymer (a) comprised of one or more compounds selected from compounds represented by the following General Formulas (1) to (4), a compound (b) of which light absorption characteristics vary by sensing changes in environment; and a polymerization reactive compound (c) (except for the polymer (a)).
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: May 2, 2023
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Nigel Ribeiro, Jie An Yang, Hongbo Wang, Yixi Lin, Masakazu Murakami, Takashi Unezaki, Haruyuki Makio
  • Publication number: 20230131633
    Abstract: A photocurable composition includes a photopolymerizable component and a photopolymerization initiator. In a case in which a rectangular sheet-like test piece is produced by photomodeling under conditions in which the photocurable composition is irradiated with visible light having a wavelength of 405 nm at an irradiation dose of 12 mJ/cm2 to form a cured layer with a thickness of 50 µm, the cured layer is stacked in a thickness direction thereof to form a rectangular sheet-like modeling product with a length of 40 mm, a width of 10 mm, and a thickness of 1 mm, and the modeling product is irradiated with ultraviolet rays having a wavelength of 365 nm at an irradiation dose of 10 J/cm2 to produce the test piece, the test piece has an X-ray absorption coefficient of from 9.0 cm-1 to 34.0 cm-1.
    Type: Application
    Filed: March 26, 2021
    Publication date: April 27, 2023
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Mai KIMURA, Toshikazu SAKAMAKI
  • Patent number: 11633723
    Abstract: A composition for exhaust gas purification containing Y—Mn—O and Al2O3 and having a specific surface area (SSA) retention satisfying inequality (1) SSA retention (%) >?61.54×(Y—Mn—O ratio)+75.55 and inequality (2) SSA retention (%) >45 (2), where SSA retention is represented by (SSA after aging)/(initial SSA)×100 (%). The SSA after aging and the initial SSA are as defined in the description. The Y—Mn—O ratio is a mass ratio of Y—Mn—O to the sum of Y—Mn—O and Al2O3 in the composition for exhaust gas purification, being represented by Y—Mn—O/(Y—Mn—O+Al2O3).
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: April 25, 2023
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Michitaka Yamaguchi, Satoshi Watanabe
  • Patent number: 11637358
    Abstract: Provided is a carrier-attached metal foil which has excellent carrier-releasability and excellent selective metal layer-etchability, and can achieve a reduction in transmission loss and resistance in a semiconductor package (for example, a millimeter-wave antenna substrate) manufactured using the same. The carrier-attached metal foil includes: (a) a carrier; (b) a release functional layer on the carrier and including (b1) an adhesion layer disposed closer to the carrier and having a thickness of more than 10 nm and less than 200 nm and (b2) a release assistance layer disposed farther from the carrier and having a thickness of 50 nm or more and 500 nm or less; and (c) a composite metal layer on the release functional layer and including (c1) a carbon layer disposed closer to the release assistance layer, and (c2) a first metal layer disposed farther from the release assistance layer and mainly composed of Au or Pt.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: April 25, 2023
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Mikiko Komiya, Takenori Yanai, Rintaro Ishii, Yoshinori Matsuura
  • Publication number: 20230120980
    Abstract: A composition includes a 4-methyl-1-pentene-based polymer in which at least one or more temperatures showing a local maximum value of a loss tangent (tan ?) are present in a range of 10° C. or higher and 100° C. or lower, and the local maximum value of the loss tangent is 0.5 or more and 3.5 or less, and an organic compound, in which a content of the organic compound is 5 to 250 parts by mass with respect to 100 parts by mass of the 4-methyl-1-pentene-based polymer, and the organic compound has a viscosity (mPa·s) in a range of 65 to 120, or a ratio between a melt flow rate (g/10 min.) of the 4-methyl-1-pentene-based copolymer and a melt flow rate (g/10 min.) of the organic compound is 1:1.0 to 0.1.
    Type: Application
    Filed: March 31, 2021
    Publication date: April 20, 2023
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Satoshi NOMA, Tomoya MATAYOSHI, Takayuki WATANABE, Michio ERIGUCHI, Ryota HORIYA
  • Publication number: 20230119028
    Abstract: A magnesium alloy/resin composite structure (106) including a magnesium alloy member (103) and a resin member (105) integrated to the magnesium alloy member (103) and made of a thermoplastic resin composition, in which the magnesium alloy member (103) surface to which the resin member (105) is not integrated is coated with a layer including a manganese atom, an oxygen atom, and a sulfur atom.
    Type: Application
    Filed: December 21, 2022
    Publication date: April 20, 2023
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Mizue KURIYAGAWA, Yoshihiko TOMITA, Hiroshi OKUMURA
  • Publication number: 20230119832
    Abstract: A nonwoven fabric layered body includes, in the following order, a crimped surface layer including a crimped spunbond nonwoven fabric including a crimped fiber, a crimped intermediate layer including a crimped spunbond nonwoven fabric including a crimped fiber, and a non-crimped surface layer including a non-crimped spunbond nonwoven fabric including a non-crimped fiber, a linear mass density of the crimped fiber in the crimped surface layer is from 1.4 denier to 1.6 denier, and a linear mass density of the crimped fiber in the crimped intermediate layer is less than 1.4 denier.
    Type: Application
    Filed: March 26, 2021
    Publication date: April 20, 2023
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Sho IIHAMA, Koichi SHIMADA
  • Patent number: 11630241
    Abstract: The lens of the present invention includes an indole-based compound represented by General Formula (1), and a polycarbonate resin having a weight average molecular weight of 40,000 to 60,000, wherein the content of the indole-based compound is 0.01 to 0.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: April 18, 2023
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Yoshiyuki Totani, Kiyohiro Saito
  • Patent number: 11632026
    Abstract: There are provided a core unit manufacturing apparatus and a core unit manufacturing method including: a molding device that fills a resin into a space portion in a core body; a resin transfer unit that transfers a resin material to the molding device to supply the resin material thereto; and a core transfer unit that carries the core body in and out of a part between a pair of dies of the molding device. The resin transfer unit and the core transfer unit are arranged such that: the resin transfer unit supplies the resin to the molding device from one side position of side surfaces of the molding device; and the core transfer unit carries the core body in and out of the molding device from the other side position of the side surfaces of the molding device, the other side position being different from one side position.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: April 18, 2023
    Assignee: MITSUI HIGH-TEC, INC.
    Inventors: Yuji Takeda, Katsumi Amano, Takashi Fukumoto
  • Patent number: 11632023
    Abstract: A laminated iron core includes a plurality of blanked iron core pieces laminated together, a continuity of side parts of the iron core pieces configuring a side surface of the laminated iron core. The side part of each iron core piece includes a specific light reflection area having a prescribed width along a circumferential direction, where the specific light reflection area has different light reflection characteristics from the other area of the side part of the iron core piece, and a striped pattern, configured by the specific light reflection areas, exists on the side surface of the laminated iron core.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: April 18, 2023
    Assignee: MITSUI HIGH-TEC, INC.
    Inventors: Hirokazu Arakawa, Takashi Maruyama, Kenichi Takasaki
  • Patent number: 11631887
    Abstract: Provided is a sulfide-based solid electrolyte comprising lithium, phosphorus, sulfur, and a halogen, as a novel solid electrolyte capable of suppressing generation of hydrogen sulfide and securing ionic conductivity. The solid electrolyte is characterized by comprising Li7?aPS6?aHaa (wherein Ha represents a halogen, and “a” satisfies 0.2<a?1.8) having an argyrodite-type crystal structure, and Li3PS4, wherein, in an X-ray diffraction (XRD) pattern obtained through measurement by an X-ray diffraction method, the ratio of the peak intensity of a peak appearing at a position in a range of diffraction angle 2?=26.0° to 28.8° derived from Li3PS4, relative to the peak intensity of a peak appearing at a position in a range of diffraction angle 2?=24.9° to 26.3° derived from the argyrodite-type crystal structure, is 0.04 to 0.3.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: April 18, 2023
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Yuki Nakayama, Tsukasa Takahashi, Takahiro Ito, Norihiko Miyashita
  • Patent number: 11628651
    Abstract: Provided is a resin composition used for forming a laminated glass interlayer film or a solar cell encapsulant, the resin composition including an ionomer (A) of an ethylene-unsaturated carboxylic acid-based copolymer, wherein metal ions constituting the ionomer (A) of the ethylene-unsaturated carboxylic acid-based copolymer includes two or more kinds of polyvalent metal ions.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: April 18, 2023
    Assignee: DOW-MITSUI POLYCHEMICALS CO., LTD.
    Inventors: Harunobu Komatsu, Kei Nagayama, Norihiko Sato, Kana Fukuyama, Motoaki Isokawa
  • Publication number: 20230110251
    Abstract: A non-aqueous electrolyte solution for a battery contains a phosphazene compound (A) that contains at least one of a phosphazene compound represented by Formula (1) or a phosphazene compound represented by Formula (2). In Formulae (1) and (2), each of Y? and Z? independently represents an anion in which a proton is removed from an inorganic acid or an active hydrogen compound; each of twenty-four Rs independently represents a hydrocarbon group having from 1 to 10 carbon atoms; and, among the twenty-four Rs, two Rs bonded to the same nitrogen atom are optionally bonded to each other.
    Type: Application
    Filed: March 30, 2021
    Publication date: April 13, 2023
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Yu MIZUNO, Yuri SUGIHARA, Takaomi HAYASHI, Emiri TANAKA