Patents Assigned to Mitsui
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Publication number: 20240172359Abstract: Provided is a roughened copper foil capable of achieving both excellent transmission characteristics and high peel strength when used for a copper-clad laminate or a printed wiring board. This roughened copper foil includes a roughened surface on at least one side. The roughened surface has a roughness slope tan ? of 0.58 or less as calculated based on a mean height Rc (?m) and a mean width RSm (?m) of profile elements by formula Rc/(0.5×RSm), and a small projected area Rc×RSm of 0.45 ?m2 or more and 2.00 ?m2 or less that is a product of the mean height Rc (?m) and the mean width RSm (?m) of the profile elements. Rc and RSm are values measured in accordance with JIS B0601-2013 under a condition of not performing a cutoff by a cutoff value ?s and a cutoff value ?c.Type: ApplicationFiled: March 17, 2022Publication date: May 23, 2024Applicant: MITSUI MINING & SMELTING CO., LTD.Inventors: Ayumu TATEOKA, Ryosuke KANEYAMA, Yasuji HARA, Yasuo SATO, Shinichi OBATA, Chun Chieh LI
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Patent number: 11990583Abstract: Provided are a sulfide solid electrolyte having a small particle size and a low specific surface area; an electrode composite material, a slurry and a battery in each of which the sulfide solid electrolyte is used; and a method of producing the sulfide solid electrolyte. The sulfide solid electrolyte contains lithium (Li), phosphorus (P) and sulfur (S) elements and has: a median diameter D50 of 0.10 ?m or more and 2.0 ?m or less; and a value of the formula: (A×B)/C, wherein A represents a BET specific surface area (m2/g), B represents a true density (g/cm3), and C represents a CS value (m2/cm3), of 1.0 or more and 2.5 or less.Type: GrantFiled: December 25, 2020Date of Patent: May 21, 2024Assignee: Mitsui Mining & Smelting Co., Ltd.Inventors: Yuki Nakayama, Takahiro Ito, Tsukasa Takahashi
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Patent number: 11987538Abstract: Provided is a method for producing a cyclic olefin compound, including a step of producing a cyclic olefin compound by acting a divalent nickel complex represented by General Formula (1) to decarbonylate and decarboxylate an alicyclic dicarboxylic acid anhydride, in which the divalent nickel complex includes at least one specific anionic ligand Y: Ni(Y)m(L)n??(1) wherein Ni is divalent nickel, Y is an anionic monodentate or polydentate ligand and has at least one Ni-E covalent bond, E is a heteroatom or a n-bonding group, m is 1 or 2, L is a neutral ligand, and n is a real number of 0 to 6.Type: GrantFiled: June 10, 2021Date of Patent: May 21, 2024Assignee: MITSUI CHEMICALS, INC.Inventors: Haruyuki Makio, Takaaki Yano, Akira Matsuura
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Patent number: 11988807Abstract: The present invention provides an optical member including an organic polymer. This optical member includes a surface A which has an area of 1 mm2 or more, and in which the flatness of a region having an area of 1 mm2, as measured by a non-contact type optical flatness meter, is 80 ?m or less.Type: GrantFiled: February 4, 2020Date of Patent: May 21, 2024Assignees: MITSUI CHEMICALS, INC., AHIKO FINETEC, LTD.Inventors: Soichiro Ahiko, Daisuke Tanaka, Shinichi Umeda
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Publication number: 20240157661Abstract: The present application provides an apparatus that is for producing a fiber-reinforced resin having reinforcement fibers aligned in one direction and that is capable of, with a relatively simple configuration, connecting a preceding reinforcement fiber and a subsequent reinforcement fiber when switching between the reinforcement fibers. An apparatus according to the present invention is for producing a fiber-reinforced resin having reinforcement fibers aligned in one direction, and comprises: an impregnation part which impregnates a reinforcement fiber with a resin; and a switching device which performs switching of reinforcement fibers on the upstream side of the impregnation part, from a preceding reinforcement fiber to a new reinforcement fiber. During the switching operation, the switching device forms a fabric using the preceding reinforcement fiber and the new reinforcement fiber as warp and other fibers as weft so as to connect the new reinforcement fiber with the preceding reinforcement fiber.Type: ApplicationFiled: March 17, 2022Publication date: May 16, 2024Applicant: Mitsui Chemicals, Inc.Inventors: Masahiro YANO, Atsushi MIYATA
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Publication number: 20240158633Abstract: Provided is a polyamide resin composition that has high electrical resistance in a high temperature range (around 130° C.) and high heat resistance. The polyamide resin composition includes: a polyamide resin that includes a component unit (a) derived from an aromatic dicarboxylic acid or an alicyclic dicarboxylic acid and a component unit (b2) derived from a diamine represented by formula (1); and at least one flame retardant (X) selected from the group consisting of polybrominated styrenes, brominated polystyrenes, and brominated polyphenylenes, or a flame retardant (Y) containing a specific phosphinate compound, a specific bisphosphinate compound, or a polymer of these compounds. In formula (1), n and the two instances of m are each independently 0 or 1, and —X— is a single bond or a divalent group selected from the group consisting of —O—, —S—, —SO2—, —CO—, and —CH2—.Type: ApplicationFiled: March 18, 2022Publication date: May 16, 2024Applicant: MITSUI CHEMICALS, INC.Inventors: Wataru MAKIGUCHI, Haruka DOI, Kohei NISHINO, Isao WASHIO
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Publication number: 20240158622Abstract: An object of the present invention is to obtain a recycled carbon fiber-reinforced polyolefin composition containing recycled carbon fibers having a mechanical strength that is superior to that of a composition containing unused carbon fibers, and a molded product thereof, and the present invention relates to a recycled carbon fiber-reinforced polyolefin composition, containing 0.01 to 50 parts by mass of a modified polyolefin (A), 50 to 99 parts by mass of a polyolefin (B), and 1 to 80 parts by mass of a recycled carbon fiber (C), wherein a total of (A), (B) and (C) is 100 parts by mass, wherein the modified polyolefin (A) is a modified polyolefin obtained by reacting a modified polyolefin (D) having a group that reacts with a carbodiimide group and a carbodiimide group-containing compound (E).Type: ApplicationFiled: February 22, 2022Publication date: May 16, 2024Applicant: MITSUI CHEMICALS, INC.Inventors: Hironori MATSUMOTO, Yoshiyuki OGAWA
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Publication number: 20240158966Abstract: Provided is a spun-bonded nonwoven fabric including fibers formed of a resin composition that contains: a propylene polymer (A); and a polymer (B) which is at least one selected from the group consisting of polyolefins, other than the propylene polymer (A), and polyesters. The fibers have a sea-island structure. The fibers include fibers in which a ratio of island phases having a diameter of less than 0.32 ?m among those island phases at a cross-section perpendicular to the axial direction of the fibers is 60% or higher on a number basis. In the spun-bonded nonwoven fabric, a ratio (SMB/SCB) of the tensile strength (SMD) in a machine flow direction (MD) with respect to the tensile strength (SCD)) in a direction (CD) perpendicular to the machine flow direction (MD) is from 2.0 to 5.1.Type: ApplicationFiled: March 18, 2022Publication date: May 16, 2024Applicant: MITSUI CHEMICALS, INC.Inventors: Shohei SAITA, Taiichirou ICHIKAWA, Hirotaka KANAYA
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Publication number: 20240158549Abstract: A 1-butene/ethylene copolymer (A) satisfying the following requirements (A1) to (A5). (A1) a content of constituent units (i) derived from 1-butene is in a range of 70 to 99.9 mol %, and a content of constituent units (ii) derived from ethylene is in a range of 0.1 to 30 mol % [provided that a total of constituent units (i) and constituent units (ii) is 100 mol %]; (A2) an isotactic pentad fraction (mmmm) calculated by 13C-NMR is in a range of 80 to 99.9%; (A3) an intrinsic viscosity [?] measured in decalin at 135° C. is in a range of 0.7 to 2.0 dl/g; (A4) a melt flow rate (MFR) measured at 190° C. and a load of 2.16 kg in accordance with ASTM D1238 is 1 to 100 g/10 min; and (A5) a melting peak is not observed during second temperature raising in calorimetry with a differential scanning calorimeter (DSC).Type: ApplicationFiled: March 3, 2022Publication date: May 16, 2024Applicant: MITSUI CHEMICALS, INC.Inventors: Manabu ITAKURA, Kiminori NODA, Makoto EGAWA, Yuki KAI, Nozomi KAMIYA, Hiroshi HOYA, Takahiro MIZUMA
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Publication number: 20240158626Abstract: A thermoplastic elastomer composition contains (A) to (D): (A) 100 parts by mass of a propylene polymer; (B) 50 to 300 parts by mass of an ethylene/?-olefin copolymer including units of ethylene and ?-olefin having 3 to 20 carbon atoms; (C) 50 to 280 parts by mass of a softener; and (D) 90 to 400 parts by mass of a hydrogenated product of a block copolymer including at least one block mainly including a conjugated diene monomer unit and at least one block mainly including a vinyl aromatic monomer unit.Type: ApplicationFiled: January 27, 2022Publication date: May 16, 2024Applicant: MITSUI CHEMICALS, INC.Inventors: Ryo NAKATSUJI, Masakazu JITSUKATA, Kanji YAMAMOTO, Taisei SASAKI
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Patent number: 11984341Abstract: A component-manufacturing tool includes a frame body and a holding film covering an opening, wherein the frame body includes a first frame and a second frame; the holding film includes a base layer and a holding layer provided on one surface of the base layer, and the holding film is sandwiched and held between the first frame and the second frame in a stretched state; and a ratio RE1 (=E?(100)/E?(25)) of an elastic modulus E?(100° C.) of the base layer to an elastic modulus E?(25° C.) of the base layer is 0.2?RE1?1, and E?(25) is 35 MPa or more and 3500 MPa or less. A component-manufacturing method includes a component holding step of holding components to the holding layer of the component-manufacturing tool; and a chucking step of chucking and fixing the holding film, to which holds the components, to a surface of a heated chuck table.Type: GrantFiled: May 8, 2018Date of Patent: May 14, 2024Assignee: MITSUI CHEMICALS TOHCELLO, INC.Inventor: Eiji Hayashishita
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Patent number: 11980935Abstract: Copper particles are provided that each include a core particle made of copper and a coating layer that coats the surface of the core particle, wherein the coating layer is made of a copper salt of an aliphatic organic acid. It is also preferable that the copper particles have an infrared absorption peak in a range of 1504 to 1514 cm?1 and no infrared absorption peak in a range of 1584 to 1596 cm?1. It is also preferable that, in thermogravimetric analysis of the copper particles, the temperature at which the ratio of the mass loss value to the mass loss value at 500° C. reaches 10% is from 150° C. to 220° C. A method is also provided for producing copper particles, the method including bringing core particles made of copper into contact with a solution containing a copper salt of an aliphatic organic acid to thereby coat the surface of the core particles.Type: GrantFiled: December 15, 2020Date of Patent: May 14, 2024Assignee: Mitsui Mining & Smelting Co., Ltd.Inventors: Mizuki Akizawa, Takafumi Sasaki
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Publication number: 20240154164Abstract: Provided is a nonaqueous electrolyte solution for a lithium secondary battery, the nonaqueous electrolyte solution containing a compound (I) represented by Formula (I) and a compound (II) represented by Formula (II). In Formula (I), each of R1 and R2 independently represents a substituent such as an alkyl group having from 1 to 7 carbon atoms. In Formula (II), R3 represents an oxygen atom or the like; R4 represents a group represented by Formula (ii-1), a group represented by Formula (ii-2), or the like; and * represents a binding position. In Formula (ii-1), R41 represents an oxymethylene group or the like and, in Formula (ii-2), R42 represents an alkyl group having from 1 to 6 carbon atoms, or the like.Type: ApplicationFiled: January 17, 2022Publication date: May 9, 2024Applicants: MITSUI CHEMICALS, INC., DAIKIN INDUSTRIES, LTD.Inventors: Yusuke SHIMIZU, Hidenobu NOGI, Masahiro SUGURO, Yoshiko KUWAJIMA, Tomoya HIDAKA, Kae FUJIWARA, Shigeaki YAMAZAKI
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Publication number: 20240150552Abstract: A resin composition including: 100 parts by mass of a thermoplastic resin (A) having a density, a MFR, and durometer A hardness falling within certain ranges; 10 to 100 parts by mass of a heat storage compound (B) having a flash point of 200° C. or higher; and 1.5 to 20 parts by mass of a porous inorganic compound (C) having an oil absorption of 4.0 g/g or more, in which the content of the heat storage compound (B) is less than 700 parts by mass based on the content of the porous inorganic compound (C) of 100 parts by mass.Type: ApplicationFiled: January 17, 2022Publication date: May 9, 2024Applicant: MITSUI CHEMICALS, INC.Inventor: Hiroaki YOSHII
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Patent number: 11976394Abstract: Provided is a non-woven fabric which is suitable for cleaning wipers, diapers, food packaging materials, etc., and has excellent water absorption and handling performance. The non-woven fabric according to the present invention contains a thermoplastic biodegradable resin, and is characterized in that fibers constituting the non-woven fabric have crimps, the flexural rigidity index in the mechanical direction (MD) of the non-woven fabric is 7.77-37.4 as defined by the following equation: flexural rigidity index in the mechanical direction (MD)=flexural rigidity (gf·cm) in the mechanical direction (MD)/{basis weight(g/m2)}2.5×106, and the bulk density of the non-woven fabric is 0.098 g/cm3 to 0.251 g/cm3.Type: GrantFiled: September 18, 2020Date of Patent: May 7, 2024Assignee: Mitsui Chemicals Asahi Life Materials Co., Ltd.Inventors: Yuya Fujimoto, Rumina Obi, Takashi Komatsu, Eiji Shiota
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Patent number: 11978850Abstract: A sulfide solid electrolyte that can suppress the generation of hydrogen sulfide gas while maintaining the lithium ion conductivity; and an electrode composite material, a slurry and a battery, in each of which the sulfide solid electrolyte is used, are provided. The sulfide solid electrolyte contains lithium (Li), phosphorus (P) and sulfur (S) elements; at least one halogen (X) element; and at least one metal (M) element having a first ionization energy of more than 520.2 KJ/mol and less than 1007.3 KJ/mol, wherein, in an X-ray diffraction pattern measured with CuK?1 radiation, peaks are present at positions of 2?=25.19°±1.00° and 29.62°±1.00°.Type: GrantFiled: December 11, 2020Date of Patent: May 7, 2024Assignee: Mitsui Mining & Smelting Co., Ltd.Inventors: Yuki Nakayama, Takahiro Ito, Tsukasa Takahashi
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Patent number: 11976502Abstract: A striker on a lower part of a doorway of a vehicle body includes: first and second engagement parts on a metal base and fixed to the vehicle body to be apart from each other to respectively engage with a door latch device on a lower part of a door capable of closing the doorway and a dislocation prevention part adjacent the door latch device; a pair of front and rear engagement pieces on a vehicle interior side of the base respectively opposite the first and second engagement parts; a reinforcing piece between the first and second engagement pieces; and an elastic body fixed to the base by the first and second engagement pieces and the reinforcing piece. The elastic body has a convex portion that abuts against an inner panel of the door when the door is closed. The convex portion is supported by the reinforcing piece.Type: GrantFiled: June 18, 2020Date of Patent: May 7, 2024Assignee: MITSUI KINZOKU ACT CORPORATIONInventors: Yosuke Matsuda, Tatsuya Takayama
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Publication number: 20240141165Abstract: Provided is a polyamide resin composition that has a high electrical resistance in a high temperature region (around 130° C.) while having a high heat resistance. This polyamide resin composition comprises polyamide resin that contains a component unit (a) deriving from an aromatic dicarboxylic acid or alicyclic dicarboxylic acid and a component unit (b2) deriving from 1,3-bis(aminomethyl)cyclohexane. The polyamide resin composition further comprises at least one flame retardant (X) selected from the group consisting of polybrominated styrenes, brominated polystyrenes, and brominated polyphenylenes, or a flame retardant (Y) comprising a prescribed phosphinate salt compound or bisphosphinate salt compound or a polymer thereof.Type: ApplicationFiled: March 16, 2022Publication date: May 2, 2024Applicant: MITSUI CHEMICALS, INC.Inventors: Haruka DOI, Wataru MAKIGUCHI, Kohei NISHINO, Isao WASHIO
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Patent number: 11970396Abstract: A negative thermal expansion material having a negative thermal expansion coefficient according to the present invention is represented by Zr2?aMaSxP2O12+?, where M is at least one selected from Ti, Ce, Sn, Mn, Hf, Ir, Pb, Pd, and Cr; a is 0?a<2; x is 0.4?x?1; and ? is a value defined as to satisfy a charge neutral condition. The present invention makes it possible to provide a negative thermal expansion material, a composite material and a method for producing a negative thermal expansion material that can realize reduction in cost and density reduction.Type: GrantFiled: February 26, 2019Date of Patent: April 30, 2024Assignees: TOKYO INSTITUTE OF TECHNOLOGY, MITSUI MINING & SMELTING CO., LTD.Inventors: Toshihiro Isobe, Yuko Hayakawa, Yuri Adachi, Ryosuke Uehara
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Patent number: 11969923Abstract: There are provided a method and a device for manufacturing an iron core product, including: holding first and second inserts by first and second holding portions provided in a holding unit; and then displacing at least one of the first holding portion and the second holding portion such that a posture of the first insert corresponds to an opening of a first receiving portion provided in a first main surface of a first receiver and a posture of the second insert corresponds to an opening of a second receiving portion provided in the first main surface; thereafter inserting the first insert from the first holding portion into the first receiving portion and inserting the second insert from the second holding portion into the second receiving portion in a state where the holding unit is arranged to face the first main surface.Type: GrantFiled: May 16, 2022Date of Patent: April 30, 2024Assignee: MITSUI HIGH-TEC, INC.Inventor: Kenyu Yoshizumi