Patents Assigned to Mitsui
  • Publication number: 20200387010
    Abstract: A selecting device, database server, lens designating server, and terminal device. Selecting device includes device for acquiring movement data of orthokeratology lens mounted on and moving on cornea, and assessing device which uses lens movement data to determine which orthokeratology lens is appropriate for patient. Correction data of the lens, patient data including data of cornea, and data that indicates which stage of a plurality of correction stages the lens is to be mounted on cornea, are output to server to build a database. Terminal device includes patient data acquiring device and patient stage data accepting means, and is capable of transmitting patient data and patient stage data to lens designating server configured to retrieve from database a lens having data that are the same, as or close to, the received patient data and patient stage data, and to designate retrieved lens as orthokeratology lens to be used for patient.
    Type: Application
    Filed: June 30, 2017
    Publication date: December 10, 2020
    Applicant: Mitsui Medical Commerce Co., Ltd.
    Inventor: Iwane MITSUI
  • Patent number: 10858472
    Abstract: A polythiol composition includes a polythiol compound (a) represented by the following formula (5) and a compound (b) wherein, in a high performance liquid chromatography measurement of the polythiol composition under defined conditions, the peak area of the compound (b) which appears at the retention time from 4.3 minutes to 5.6 minutes is equal to or less than 3.0, with respect to the peak area of 100 of the polythiol compound (a) which appears at the retention time from 12.0 minutes to 13.5 minutes. A process for producing a polythiol composition, a method of manufacturing a molded product, a molded product, an optical element and a lens are also provided.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: December 8, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Masaru Kawaguchi, Takeshi Nishimura
  • Patent number: 10858473
    Abstract: A polythiol composition includes a polythiol compound (a) that includes at least one kind selected from the compounds represented by the following formulae (6) to (8) as main component, and a compound (b) wherein, in a high performance liquid chromatography measurement of the polythiol composition under defined conditions, the peak area of the compound (b) which appears at the retention time from 6.5 minutes to 8.0 minutes is equal to or less than 3.0, with respect to the peak area of 100 of the polythiol compound (a) which appears at the retention time from 22.0 minutes to 28.0 minutes. A process for producing a polythiol composition, a method of manufacturing a molded product, a molded product, an optical element and a lens are also provided.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: December 8, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Masaru Kawaguchi, Takeshi Nishimura
  • Patent number: 10859865
    Abstract: The lens comprises: a first transparent substrate that includes a diffraction region in which a plurality of convex strips and groove sections are formed in alternation in concentric circles; a second transparent substrate that faces the first transparent substrate; a liquid crystal layer disposed in a space present between the diffraction region and the second transparent substrate; and a first transparent electrode and a second transparent electrode that impress a voltage on the liquid crystal layer. The diffraction region comprises a first diffraction region and a second diffraction region that is disposed in at least part of a portion different from the first diffraction region. The space comprises: groove-shaped spaces present between the groove sections and the second transparent substrate; and a communicating space disposed between at least part of the convex shapes of the second diffraction region and the second transparent substrate, and communicating between neighboring groove-shaped spaces.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: December 8, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Yoshinobu Okada, Eiichiro Hikosaka, Toshifumi Hino, Akifumi Aono, Akihiro Muramatsu
  • Patent number: 10863621
    Abstract: There is provided with a metal foil-releasable resin layer composite comprising a metal foil and a releasable resin layer on at least one surface of the metal foil, wherein the releasable resin layer includes 100 parts by mass, in total, of (A) 50 to 95 parts by mass of a nonpolar resin, (B) 4 to 40 parts by mass of a thermosetting resin, and (C) 1 to 25 parts by mass of a release agent, wherein the mass ratio (A/B) of the nonpolar resin (A) to the thermosetting resin (B) is 55/45 to 96/4. The metal foil-releasable resin layer composite can achieve release with significantly low release strength between the metal foil and the releasable resin layer without damage of the releasable resin layer and can withstand hot pressing.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: December 8, 2020
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Toshifumi Matsushima, Ayumu Tateoka, Fujio Kuwako, Shigeru Itabashi
  • Patent number: 10858547
    Abstract: Provided is a film for manufacturing a semiconductor part in which an evaluation step accompanied with a temperature change, a segmenting step, and a pickup step can be commonly performed, a method for manufacturing a semiconductor part, a semiconductor part, and an evaluation method. The film includes a base layer, and an adhesive layer disposed on one surface side of the base layer, wherein the ratio RE (=E?(160)/E?(?40)) of the elastic modulus of the base layer at 160° C. to the elastic modulus of the base layer at ?40° C. is RE?0.01, and the elastic modulus E?(?40) is 10 MPa to less than 1000 MPa. The method includes bonding the adhesive layer to a back surface of a semiconductor wafer, separating the semiconductor wafer into segments to obtain semiconductor parts, and separating the semiconductor parts from the adhesive layer, and includes a step of evaluating.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: December 8, 2020
    Assignee: MITSUI CHEMICALS TOHCELLO, INC.
    Inventor: Eiji Hayashishita
  • Publication number: 20200377637
    Abstract: A curable composition for stereolithography, comprising a photopolymerizable component and a photopolymerization initiator, wherein a cured product of the curable composition has a minimum value of a storage elastic modulus, in a range of from 25° C. to 300° C., of not greater than 1.20×107 Pa.
    Type: Application
    Filed: March 28, 2019
    Publication date: December 3, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Takaaki HAYASHI, Toshikazu SAKAMAKI
  • Publication number: 20200377772
    Abstract: The purpose of the present invention is to provide a semiconductor substrate manufacturing method, which prevents detachment of a semiconductor wafer being ground, and which prevents cracking or chipping in a semiconductor substrate obtained. In order to solve the problem, the semiconductor substrate manufacturing method comprises: a polyimide layer forming step of forming a polyimide layer on a support material; a wafer attaching step of affixing the support material and a semiconductor wafer to each other with the polyimide layer disposed therebetween; a wafer grinding step of grinding the semiconductor wafer; a support material peeling step of peeling the support material from the polyimide layer; and a polyimide layer peeling step of peeling the polyimide layer from the semiconductor wafer. The polyimide layer includes polyimide which includes a benzophenone skeleton and an aliphatic structure, wherein an amine equivalent weight is 4000 to 20000.
    Type: Application
    Filed: April 19, 2018
    Publication date: December 3, 2020
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Jun KAMADA, Kaichiro HARUTA, Takashi UNEZAKI, Kiyomi IMAGAWA, Kenichi FUJII, Yasuhisa KAYABA, Kazuo KOHMURA
  • Publication number: 20200378846
    Abstract: A sensor module includes a holding member formed of an elastic body, a pressure bearing face provided at the holding member and configured to bear pressure, an adjoining face provided at the holding member so as to adjoin the pressure bearing face and configured to undergo deformation in accordance with the pressure borne by the pressure bearing face, and an elongate piezoelectric substrate arranged on the adjoining face.
    Type: Application
    Filed: August 3, 2018
    Publication date: December 3, 2020
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Katsuki ONISHI, Kazuhiro TANIMOTO, Mitsunobu YOSHIDA
  • Publication number: 20200369567
    Abstract: A cement composition is disclosed containing: cement; cellulose nanofibers; and water, wherein a mass ratio of the water to cement is 0.4 or less. The cement is preferably Portland cement. It is preferred that the Portland cement is high-early-strength Portland cement, and that a mass ratio of fine aggregate to the high-early-strength Portland cement is 2.0 or less. A unit amount of cellulose nanofibers in the cement composition can be 0.1 kg/m3 to 15 kg/m3 Furthermore, a hardened body of the cement composition is disclosed, wherein a ratio of a splitting tensile strength of the hardened body at a material age of 91 days obtained by curing in air, to the splitting tensile strength of the hardened body at the material age if 91 days obtained by curing in water is 0.90 or more and 1.10 or less, the splitting tensile strength being measured in accordance with JIS-A-1113 (2006).
    Type: Application
    Filed: February 1, 2019
    Publication date: November 26, 2020
    Applicants: DAIO PAPER CORPORATION, SUMITOMO MITSUI CONSTRUCTION CO., LTD.
    Inventors: Junya Okawa, Hiroto Sasaki, Wataru Sasaki, Yosuke Onda, Hideaki Taniguchi
  • Publication number: 20200369812
    Abstract: Described is a cyclic olefin-based copolymer has a constitutional unit (A) derived from an ?-olefin having 2 to 20 carbon atoms, a constitutional unit (B) derived from a cyclic olefin without an aromatic ring, and a constitutional unit (C) derived from a cyclic olefin having an aromatic ring. Also described is a medical container containing a cyclic olefin-based copolymer having a constitutional unit (A) derived from an ?-olefin having 2 to 20 carbon atoms, a constitutional unit (B) derived from a cyclic olefin without an aromatic ring, and a constitutional unit (C) derived from a cyclic olefin having an aromatic ring.
    Type: Application
    Filed: November 27, 2018
    Publication date: November 26, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Hideki WASA, Haruka SAITO, Sunil Krzysztof MOORTHI, Futoshi FUJIMURA, Masahiko OKAMOTO, Emi ONIKI, Kouichi KIZU, Jiacheng HE
  • Patent number: 10842682
    Abstract: A nonwoven fabric layered body, including: an elastic nonwoven fabric; and an extensible spunbond nonwoven fabric that is disposed on at least one surface side of the elastic nonwoven fabric and that has a degree of maximum load elongation of 50% or more in at least one direction, the nonwoven fabric layered body satisfying the following (1) and (2). (1) The elastic nonwoven fabric includes a resin composition containing a specific low-crystalline polypropylene, and an ?-olefin copolymer A containing an ethylene-derived constitutional unit and a propylene-derived constitutional unit, and having a melting point of 100° C. or more and a crystallization degree of 15% or less. (2) The resin composition contains from 5 parts by mass to 50 parts by mass of the ?-olefin copolymer A with respect to 100 parts by mass of the resin composition.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: November 24, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Shouichi Takaku, Kenichi Suzuki, Tetsuya Yokoyama, Koichi Shimada
  • Patent number: 10844010
    Abstract: In a process for producing a (poly) sulfide compound represented by General Formula (2) of the present invention, thiol compounds represented by General Formula (1) are reacted with each other in the presence of a basic compound represented by General Formula (4) or General Formula (5) and sulfur.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: November 24, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Koichi Tokunaga, Chitoshi Shimakawa, Shigetoshi Kuma, Masaru Kawaguchi
  • Publication number: 20200362169
    Abstract: A resin composition for use in a dielectric layer of a capacitor is provided that can control a decrease in capacitance or dielectric constant at high temperature and ensure high dielectric characteristics and high adhesion of the composition to a circuit. The resin composition contains a resin component containing an epoxy resin, a diamine compound, and a polyimide resin; and a dielectric filler composed of a metal oxide containing at least two elements selected from the group consisting of Ba, Ti, Sr, Pb, Zr, La, Ta, and Bi. The content of the dielectric filler is 60 to 85 parts by weight on the basis of 100 parts by weight of solid content in the resin composition.
    Type: Application
    Filed: January 18, 2019
    Publication date: November 19, 2020
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Yoshihiro YONEDA, Toshihiro HOSOI, Kenshiro FUKUDA, Toshifumi MATSUSHIMA
  • Publication number: 20200362492
    Abstract: Provided is a spunbonded nonwoven fabric, including a fiber formed of a composition containing: a propylene homopolymer having a melting point of 140° C. or higher; a polyethylene; and at least one polymer selected from the group consisting of a polymer shown in (I), and a polymer shown in (II), in which the fiber has a sea-island structure, and an average length of an island phase is from 1 ?m to 500 ?m in a cross section taken along a major axis direction of the fiber, and a method for producing thereof, and in which the polymer shown in (I) is a random copolymer of a propylene with ?-olefin having specified number of carbon atoms and the polymer shown in (II) is a propylene homopolymer having a melting point of less than 120° C. satisfying the specified properties.
    Type: Application
    Filed: January 23, 2019
    Publication date: November 19, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Taiichiro ICHIKAWA, Koichi SHIMADA, Shigeyuki MOTOMURA, Akio MATSUBARA
  • Patent number: 10840180
    Abstract: A method of manufacturing a multilayer wiring board is disclosed, the method being capable of reinforcing the multilayer wiring layer and thereby improving the reliability of connection and the flatness on the surface of the multilayer wiring layer. The method includes providing a laminated sheet having a substrate, a first release layer and a metal layer; forming a first wiring layer on the metal layer; alternately stacking insulating layers and wiring layers on the laminated sheet on which the first wiring layer is formed to give a laminate provided with a multilayer wiring layer; stacking a reinforcing sheet on the laminate provided with the multilayer wiring layer at the side opposite to the laminate sheet, while interposing the second release layer; separating the substrate from the metal layer; and separating the reinforcing sheet from the laminate provided with the multilayer wiring layer to give the multilayer wiring board.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: November 17, 2020
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Yoshinori Matsuura, Takenori Yanai, Toshimi Nakamura
  • Patent number: 10829964
    Abstract: A vehicular door latch device includes a latch, a ratchet, a locking and unlocking mechanism, and a rotation member. The latch rotates in accordance with closing of a door while a striker provided in a vehicle body is engaged. When the door is in a fully-closed state, the ratchet holds the latch in a first posture. When the door is in a half-closed state, the ratchet holds the latch in a second posture. The mechanism is switched between an unlocked posture that can cancel interlock, and a locked posture that cannot cancel the interlock. When the latch is in the second posture, the rotation member overlaps the switching route and prohibits the posture change. When coming into contact with the rotation member overlapping the switching route, the mechanism in the unlocked posture is switched to the unlocked posture by rotation of a portion thereof in contact with the rotation member.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: November 10, 2020
    Assignee: Mitsui Kinzoku Act Corporation
    Inventor: Shuntaro Kimura
  • Publication number: 20200347265
    Abstract: Provided is a composition for forming a film for semiconductor devices, including: a compound (A) including a Si—O bond and a cationic functional group containing at least one of a primary nitrogen atom or a secondary nitrogen atom; a crosslinking agent (B) which includes three or more —C(?O)OX groups (X is a hydrogen atom or an alkyl group having from 1 to 6 carbon atoms) in the molecule, in which from one to six of three or more —C(?O)OX groups are —C(?O)OH groups, and which has a weight average molecular weight of from 200 to 600; and a polar solvent (D).
    Type: Application
    Filed: July 15, 2020
    Publication date: November 5, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Yasuhisa KAYABA, Hirofumi TANAKA, Koji INOUE
  • Patent number: 10826362
    Abstract: In a laminated iron core formed by laminating a plurality of iron core pieces, at least one of an inner circumferential portion or an outer circumferential portion of the iron core piece is provided with a connection recess part which is connected with a connection part of a caulking piece detachable in a radial direction from the connection recess part, an outer circumferential edge of the connection part has the same shape as an inner circumferential edge of the connection recess part, and a bottom portion of the connection recess part is not configured by a single straight line.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: November 3, 2020
    Assignee: MITSUI HIGH-TEC, INC.
    Inventor: Yusuke Hasuo
  • Patent number: D903122
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: November 24, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Takashi Yukita, Haruka Sugita, Akira Hasegawa, Hideyuki Nagai, Yasufumi Tsuchiya