Patents Assigned to Mitsui
  • Patent number: 9902847
    Abstract: To provide a 4-methyl-1-pentene/olefin (co)polymer composition which is excellent in transparency and heat resistance and is excellent also in elongation and toughness and to provide a molded product composed of the composition, a film composed of the composition, which is excellent in transparency, heat resistance and dimensional stability and has been uniformly stretched, and a hollow molded product composed of the composition, which is excellent in transparency, heat resistance and toughness and is excellent also in dimensional stability. The 4-methyl-1-pentene (co)polymer composition of the present invention comprises a specific 4-methyl-1-pentene (co)polymer (A) and a specific 4-methyl-1-pentene/?-olefin copolymer (B) in a specific ratio.
    Type: Grant
    Filed: December 25, 2012
    Date of Patent: February 27, 2018
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Hirokazu Tanaka, Takayuki Uekusa, Masahiko Okamoto, Yoshisada Tamo
  • Patent number: 9903143
    Abstract: A switch assembly of a vehicle door latch device, the switch assembly includes: a latch switch detecting a position of a latch, the latch being pivotally supported by a latch shaft to be engaged with a striker; a ratchet switch that detecting a position of a ratchet, the ratchet being pivotally supported by a ratchet shaft to be engaged with the latch and prevented reverse rotation of the latch; and a one common switch case that the latch switch and the ratchet switch are installed in the one common switch case. The latch shaft and the ratchet shaft are arranged to be isolated across a striker moving trajectory of the striker. The one common switch case is arranged on a latch body on one side of a striker moving trajectory.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: February 27, 2018
    Assignee: MITSUI KINZOKU ACT CORPORATION
    Inventor: Shigenori Hiramoto
  • Patent number: 9902810
    Abstract: The present invention addresses the problem of providing: a polyimide film that has a small phase difference in the thickness direction and has a low coefficient of linear thermal expansion; and a polyamic acid and varnish to obtain the same. In order to solve this problem, the present invention provides a polyimide film which comprises polyimide that is produced by reacting a diamine component and a tetracarboxylic dianhydride component, the polyimide film having a coefficient of linear thermal expansion of 35 ppm/K or less over a temperature range of 100 to 200 DEG C, an absolute value of phase difference in the thickness direction of 200 nm or less per 10 ?m thickness, a glass transition temperature of 260 DEG C or more, and a total light transmittance of 85% or more.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: February 27, 2018
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Tatsuhiro Urakami, Masaki Okazaki, Kenichi Fukukawa, Yoshihiro Sakata, Atsushi Okubo
  • Patent number: 9905750
    Abstract: Provided is a process for producing a polymeric piezoelectric material including a first step of heating a sheet in an amorphous state containing the helical chiral polymer to obtain a pre-crystallized sheet, and a second step of stretching the pre-crystallized sheet in biaxial directions, wherein the polymeric piezoelectric material includes a helical chiral polymer having a weight-average molecular weight of from 50,000 to 1,000,000 and having optical activity, wherein a crystallinity of the material measured by a DSC method is from 20% to 80%, and a product of a standardized molecular orientation MORc measured by a microwave transmission type molecular orientation meter based on a reference thickness of 50 ?m and the crystallinity is from 25 to 250.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: February 27, 2018
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Mitsunobu Yoshida, Shigeo Nishikawa, Masaki Shimizu, Hiroshi Fukuda
  • Publication number: 20180050507
    Abstract: A method of manufacturing a plastic lens includes: a step of putting a first curable composition over a forming surface of a first mold substrate having the forming surface for forming a lens surface; a step of spreading the first curable composition over the entire forming surface by pressing the composition with a film to form a first curable composition layer and separating the film from the first mold substrate by a predetermined distance through the formed first curable composition layer; a step of covering defined surfaces; a step of injecting a second curable composition into a defined location; a step of curing the first curable composition layer and the injected second curable composition; and a step of removing to obtain a plastic lens.
    Type: Application
    Filed: January 14, 2016
    Publication date: February 22, 2018
    Applicants: HOPNIC LABORATORY CO., LTD., MITSUI CHEMICALS, INC.
    Inventor: Yoshimitsu AllSO
  • Publication number: 20180051405
    Abstract: A multilayer nonwoven fabric includes: an elastic nonwoven fabric containing a specific low crystalline polypropylene; and a mixed fiber spunbonded nonwoven fabric disposed on at least one surface of the elastic nonwoven fabric, wherein the mixed fiber spunbonded nonwoven fabric contains a long fiber of a thermoplastic elastomer (A) and a long fiber of a thermoplastic elastomer (B) other than the thermoplastic elastomer (A), in a ratio of 10 to 90% by mass:90 to 10% by mass ((A):(B), with the proviso that (A)+(B)=100% by mass).
    Type: Application
    Filed: March 9, 2016
    Publication date: February 22, 2018
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Koichi SHIMADA, Kenichi SUZUKI, Shouichi TAKAKU
  • Patent number: 9896526
    Abstract: [Problem to be solved] There is provided a process for producing an olefin polymer that is capable of producing an olefin polymer having high heat resistance and high molecular weight with excellent catalytic activity. [Solution to problem] The process for producing an olefin polymer includes a step of polymerizing at least one olefin selected from ethylene and ?-olefins having 4 to 30 carbon atoms in the presence of an olefin polymerization catalyst containing a transition metal compound represented by the general formula [I], the olefin polymer including constituent units derived from ethylene and ?-olefins having 4 to 30 carbon atoms in a total amount between more than 50 mol % and not more than 100 mol %, [in the formula [I], R1, R3 and R5 to R16 are each independently a hydrogen atom, a hydrocarbon group or the like; R2 is a hydrocarbon group or the like; R4 is a hydrogen atom; M is a transition metal of Group IV; Q is a halogen atom or the like; and j is an integer of 1 to 4].
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: February 20, 2018
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Munehito Funaya, Atsushi Sakuma, Ikuko Ebisawa, Shinsuke Kinoshita, Akiko Matsumoto, Hirokazu Tanaka, Shinya Tanaka
  • Patent number: 9899701
    Abstract: Proposed is a new sulfide-based solid electrolyte for lithium ion batteries, the sulfide-based solid electrolyte relating to a compound that has a cubic argyrodite type crystal structure and is represented by Li7-x-2yPS6-x-yClx, and having excellent water resistance and oxidation resistance. Proposed is a sulfide-based solid electrolyte for lithium ion batteries, the sulfide-based solid electrolyte containing a compound that has a cubic argyrodite type crystal structure and is represented by compositional formula (1): Li7-x-2yPS6-x-yClx, in which compositional formula, conditions: 0.8?x?1.7 and 0<y??0.25x+0.5 are satisfied.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: February 20, 2018
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Norihiko Miyashita, Takashi Chikumoto, Hideaki Matsushima, Kenji Matsuzaki
  • Patent number: 9899702
    Abstract: Relating to a sulfide-based solid electrolyte compound for lithium ion batteries which has a cubic argyrodite-type crystal structure, to provide a compound which can suppress a generation amount of hydrogen sulfide when being left to stand in the air and which can maintain high conductivity even when being left to stand in dry air. Proposed is a sulfide-based solid electrolyte compound for lithium ion batteries containing a crystal phase of the cubic argyrodite-type crystal structure and represented by a composition formula (1): Li7?x+yPS6?xClx+y, wherein x and y in the composition formula (1) satisfy 0.05?y?0.9 and ?3.0x+1.8?y??3.0x+5.7.
    Type: Grant
    Filed: December 25, 2015
    Date of Patent: February 20, 2018
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Norihiko Miyashita, Takashi Chikumoto, Tatsuya Aoki, Hitohiko Ide, Kenji Matsuzaki
  • Patent number: 9899704
    Abstract: A non-aqueous electrolyte solution for a battery includes: an additive A which is a compound represented by formula (I); and an additive B which is at least one selected from the group consisting of an aromatic compound having at least one of a halogen atom or an alkyl group and a carbamate, and which is a compound other than carbonates or a cyclic sulfates. In formula (I), R1 represents a group represented by formula (II) or a group represented by formula (III) and R2 represents H, a C1-6 alkyl group, a group represented by formula (II), or a group represented by formula (III); or R1 and R2 represent groups which combine to form a benzene ring or cyclohexyl ring. In formula (II), R3 represents a halogen atom, a C1-6 alkyl group, a C1-6 alkyl halide group, a C1-6 alkoxy group, or a group represented by formula (IV).
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: February 20, 2018
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Masataka Miyasato, Satoko Fujiyama, Takashi Hayashi
  • Publication number: 20180046071
    Abstract: A method for producing a pellicle according to the one embodiment of the present invention produces a pellicle including a pellicle film and a pellicle frame supporting an outer peripheral portion of the pellicle film. The method includes forming the pellicle film on a substrate, and bonding a pressure-sensitive adhesive sheet, that is elastic and has a pressure-sensitive adhesive force thereof decreased upon receipt of external stimulation, to each of two surfaces of the substrate; making a notch inside a part of the substrate, the part having the pressure-sensitive adhesive sheets bonded thereto; separating a substrate outer peripheral portion outer to the notch of the substrate, in a state where the pressure-sensitive adhesive sheets are bonded to the substrate, to form a pellicle frame; and stimulating the pressure-sensitive adhesive sheets to peel off the pressure-sensitive adhesive sheets.
    Type: Application
    Filed: October 26, 2017
    Publication date: February 15, 2018
    Applicants: MITSUI CHEMICALS, INC., TAZMO CO., LTD.
    Inventors: Kazuo KOHMURA, Daiki TANEICHI, Yosuke ONO, Hisako ISHIKAWA, Tsuneaki BIYAJIMA, Yasuyuki SATO, Toshiaki HIROTA
  • Publication number: 20180043832
    Abstract: An electric step control device for a vehicle having a step provided movably by power of a motor from a retraction position where the step is retracted under a vehicle body to an overhang position where the step appears from the vehicle body or vice versa according to an opening and closure operation of a door, has a control unit. The control unit executes an overhang drive control that moves the step from the retraction position to the overhang position according to an occurrence of the opening operation of the door having been at a closure position. And the control unit starts a retraction drive control that moves the step from the overhang position to the retraction position according to an occurrence of the closure operation of the door having been at a full open position at a predetermined timing before the door reaches the closure position.
    Type: Application
    Filed: July 14, 2017
    Publication date: February 15, 2018
    Applicant: MITSUI KINZOKU ACT CORPORATION
    Inventor: Keiichiro OKUYAMA
  • Publication number: 20180048220
    Abstract: An apparatus includes a mold unit and a receive unit which clamp a laminated iron core body from both sides in a lamination direction, the laminated iron core body including a plurality of laminated iron core pieces and a resin hole pierced in the lamination direction, a plunger which extrudes a resin of an inside of a resin pool part formed in the mold unit, and a cull plate arranged between the laminated iron core body and the mold unit. The cull plate includes a close contact part with the resin on a side opposed to the plunger, the close contact part including a projection projected to a side of the plunger beyond a groove bottom of a runner formed in the cull plate, or a recess recessed to a side of the laminated iron core body beyond the groove bottom of the runner.
    Type: Application
    Filed: August 4, 2017
    Publication date: February 15, 2018
    Applicant: MITSUI HIGH-TEC, INC.
    Inventors: Hirotoshi MABU, Satoshi MATSUBAYASHI
  • Patent number: 9893355
    Abstract: Provided is a new spinel type lithium manganese transition metal oxide for use in lithium batteries, which can increase the capacity retention ratio during cycling, and can increase the power output retention ratio during cycling. Disclosed is a spinel type lithium manganese transition metal oxide having an angle of repose of 50° to 75°, and having an amount of moisture (25° C. to 300° C.) measured by the Karl Fischer method of more than 0 ppm and less than 400 ppm.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: February 13, 2018
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Tetsuya Mitsumoto, Hitohiko Ide, Shinya Kagei, Yoshimi Hata, Natsumi Shibamura
  • Patent number: 9890110
    Abstract: An amide derivative represented by Formula (3), which exhibits excellent efficacy in pest control effect, is produced by allowing a compound represented by the following Formula (1) and a compound represented by Formula (2) to react with each other. In Formula (1) to Formula (3), Y1 and Y2 each represent a halogen atom or a haloalkyl group; Rf represents a C3-C4 perfluoroalkyl group; and R1 and R2 each represent a hydrogen atom or an alkyl group; LG represents a leaving group; T represents a hydrogen atom or a fluorine atom; X1, X3, X4, and X5 each represent a hydrogen atom, a halogen atom, or the like; and A represents a nitrogen atom, a methine group, or the like.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: February 13, 2018
    Assignee: Mitsui Chemicals Agro, Inc.
    Inventors: Youji Aoki, Yumi Kobayashi, Hidenori Daido, Hiroyuki Katsuta, Hidetaka Tsukada, Atsushi Hirabayashi, Yusuke Takahashi, Michikazu Nomura, Atsuko Kawahara
  • Publication number: 20180038025
    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: Application
    Filed: March 9, 2016
    Publication date: February 8, 2018
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Shouichi TAKAKU, Kenichi SUZUKI, Tetsuya YOKOYAMA, Koichi SHIMADA
  • Publication number: 20180037002
    Abstract: A laminate film which exhibits excellent gas barrier properties and lamination strength even after a severe retort treatment or which is small deterioration of gas barrier properties and hardly cause interlayer peeling can be provided. The laminate film comprises a coating layer, a metal oxide layer and a protective layer, with another intervening layer or without any intervening layer, laminated in this order on at least one surface of a polyester substrate film, wherein the coating layer comprises an oxazoline group-containing resin (A) and a polyurethane resin (B), wherein the metal oxide layer comprises a composite oxide composed of silicon oxide and aluminum oxide, and wherein the protective layer comprises a polyurethane resin (D), the polyurethane resin (D) contains a metaxylylene group in an amount of 20 to 33% by mass and a silanol group in an amount of 700 to 1700 mg per kg of a resin constituting the polyurethane resin (D), as a Si element amount contained in the silanol group.
    Type: Application
    Filed: February 24, 2016
    Publication date: February 8, 2018
    Applicants: TOYOBO CO., LTD., MITSUI CHEMICALS, INC.
    Inventors: Atsushi YAMAZAKI, Masanori KOBAYASHI, Chikako KODA, Takashi UCHIDA
  • Publication number: 20180041101
    Abstract: A method includes arranging and clamping a laminated iron core body between a receive unit and a mold unit that includes a resin pool part, the laminated iron core body including a plurality of laminated iron core pieces and a resin hole pierced in the lamination direction, with the laminated iron core body being clamped, extruding a resin of an inside of the resin pool part using a plunger and injecting the resin into the resin hole, after curing the resin in the resin hole, separating unwanted resin from the plunger by moving the plunger by a given distance in a direction away from the laminated iron core body before the laminated iron core body with unwanted resin is detached from the mold unit, and after separating the unwanted resin from the plunger, moving the plunger to the side of the laminated iron core body.
    Type: Application
    Filed: August 2, 2017
    Publication date: February 8, 2018
    Applicant: MITSUI HIGH-TEC, INC.
    Inventors: Hirotoshi MABU, Satoshi MATSUBAYASHI
  • Publication number: 20180036995
    Abstract: Provided are a hydrophilic monolayer film and a method for producing the monolayer film. The monolayer film has a surface structure with multiple protrusions and depressions. The distance between the peaks of adjoining protrusions is in the range of 1 nm to 800 nm. The monolayer film is formed of a crosslinked resin produced by curing of a polymerizable composition that contains a compound having a specific hydrophilic group and a functional group with a polymerizable carbon-carbon double bond and a compound having two or more (meth)acryloyl groups. A gradient of the concentration of hydrophilic groups (Sa2/Da2) in the monolayer film is not less than 1.1 wherein Sa is the concentration of at least one type of hydrophilic groups and a hydroxyl group at the top layer, and Da is the depth concentration of the hydrophilic groups at ½ of the thickness of the monolayer film.
    Type: Application
    Filed: March 8, 2016
    Publication date: February 8, 2018
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Koju OKAZAKI, Takayuki HANAWA
  • Patent number: D811612
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: February 27, 2018
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Kenji Iida, Motoyasu Yasui, Kazuoki Nakai, Tomoaki Ito, Shiori Hanada, Fumiaki Saikawa