Patents Assigned to Mitsui
  • Publication number: 20090142982
    Abstract: The problem of the invention is to provide a novel biodegradable polymer without water solubility (hygroscopicity), but with moldability and excellent water disintegratability and biodegradability, a production method thereof, a molded product thereof and applications thereof. The biodegradable polymer of the invention is a biodegradable polymer having one or more imine bonds within a molecule, characterized in that the imine bond constitutes part of a main chain structure of the biodegradable polymer. The biodegradable polymer preferably comprises a biodegradable unit and an imine unit having one or more imine bonds and has a chemical structure, in which the biodegradable units are linked by the imine unit.
    Type: Application
    Filed: June 28, 2006
    Publication date: June 4, 2009
    Applicant: Mitsui Chemicals Inc.
    Inventors: Manabu Shimoda, Tomoyuki Kawabata, Tadahito Nobori, Makoto Sukegawa
  • Patent number: 7541075
    Abstract: A sealant composition for a plastic liquid display cell is composed of a one-component epoxy resin composition of a base resin liquid and a curing agent liquid, wherein the base resin is a liquid epoxy resin having from 1.7 to 6 in weight average of epoxy groups in one molecule and an ionic conductivity of 2 mS/m or less; and the curing agent has an ionic conductivity of 0.6 mS/m or less. The sealant composition facilitates the fabrication of plastic liquid crystal displays having enhanced durability and sealant properties, particularly in high temperature and high humidity environments.
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: June 2, 2009
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Tadashi Kitamura, Hiroshi Kondo, Sunao Maeda
  • Patent number: 7540541
    Abstract: An apparatus for opening and closing a door of a vehicle includes a knob that is arranged on one door panel, a holding unit that holds the door in a fully closed state, a control unit that is arranged on other door panel, and allows opening and closing of the door by releasing the holding unit in response to an operation of the knob, a link unit that is arranged outside of a moving area of an opening/closing member that opens and closes a window opening of the door, a first wire cable that connects the link unit to the knob, and a second wire cable that connects the link unit to the control unit. The operation of the knob is transmitted to the link unit, and the operation transmitted is relayed by the link unit to the control unit, making the control unit operate.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: June 2, 2009
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Fumihiro Yoneyama, Shintaro Mochizuki
  • Publication number: 20090134355
    Abstract: A composition for dust-preventive treatment including an aqueous dispersion of fluorine-containing polymer showing a low potential for environmental concerns and a dust prevention effect as high as that of known composition for dust-preventive treatment. The composition for dust-preventive treatment includes an aqueous dispersion of fluorine-containing polymer containing 50 ppm or less of a fluorine-containing emulsifier. The composition for dust-preventive treatment comprising aqueous dispersion of fluorine-containing polymer containing 50 ppm or less of a fluorine-containing emulsifier can preferably be obtained by removing the fluorine-containing emulsifier from a polymer dispersion prepared by polymerizing tetrafluoroethylene using the fluorine-containing emulsifier.
    Type: Application
    Filed: June 29, 2005
    Publication date: May 28, 2009
    Applicant: Du Pont-Mitsui Fluorochemicals Co., Ltd.
    Inventors: Kazuo Konabe, Mitsuyoshi Kawazoe
  • Publication number: 20090135042
    Abstract: By using a high electromagnetic wave absorbing loss material and adding it in a small amount to a matrix, an electromagnetic wave absorber useful for GHz band, which can demonstrate the electromagnetic wave absorption capability without ruining characteristics of the matrix, and can enjoy a good formability and a low manufacturing cost, is provided. The disclosed is an electromagnetic wave absorber which is characterized in that carbon fibrous structures are contained in the matrix, at a rate of 0.01-25% by weight based on the total weight, wherein the carbon fibrous structure comprises a three dimensional network of carbon fibers each having an outside diameter of 15-100 nm, wherein the carbon fibrous structure further comprises a granular part with which the carbon fibers are tied together in the state that the concerned carbon fibers are externally elongated therefrom, and wherein the granular part is produced in a growth process of the carbon fibers.
    Type: Application
    Filed: October 18, 2006
    Publication date: May 28, 2009
    Applicants: BUSSAN NANOTECH RESEARCH INSTITUTE INC., MITSUI & CO., LTD
    Inventors: Kazunori Umishita, Tsuyoshi Okubo
  • Publication number: 20090137847
    Abstract: An object of the invention is to provide a decomposing system for polyisocyanate residues that is capable of suppressing reaction of polyisocyanate residues with high temperature and high pressure water to allow smooth start-up of the operation, and a start-up method for the decomposing system for the polyisocyanate residues. The decomposing system is used for hydrolyzing the polyisocyanate residues to polyamine using high temperature and high pressure water, comprising a hydrolyzer, a water feed pipe connected to the hydrolyzer, a residual feed pipe connected to the water feed pipe, a solvent feed line for filling an organic solvent in a solvent filling portion of the residual feed pipe, and a solvent draining line. Upon start-up of the operation, the organic solvent is previously filled in the solvent filling portion via the solvent feed line and the solvent draining line, first, and then, the high temperature and high pressure water is fed from the water feed pipe to the hydrolyzer.
    Type: Application
    Filed: July 12, 2006
    Publication date: May 28, 2009
    Applicant: Mitsui Chemicals Polyurethanes, Inc.
    Inventors: Tadashi Yoshida, Yasumichi Ooto, Akio Saito
  • Publication number: 20090134070
    Abstract: Disclosed is a method for removing unburned carbon from fly ash at low cost and within a short time. The method comprises the steps of adding a collecting agent to fly ash directly, agitating/mixing the mixture in a mixer (5), adding water to the resulting mixed material in a mixing vessel (7) to yield a slurry, applying a shearing force to the slurry in a submerged stirrer (9), and performing flotation separation of unburned carbon in a flotator (15).
    Type: Application
    Filed: December 15, 2006
    Publication date: May 28, 2009
    Applicant: MITSUI ENGINEERING & SHIPBUILDING CO., LTD.
    Inventors: Kazuo Abe, Takao Suzuki, Hitoshi Koyama, Kazuyoshi Matsuo, Shinichiro Saito
  • Publication number: 20090133922
    Abstract: A light transmitting conductive film formed by patterning a conductive metal part and a visible light transmitting part on a transparent support, wherein the conductive metal part is made up of mesh-forming thin lines of from 1 ?m to 40 ?m size and the mesh pattern continues for 3 m or longer. A method of producing a display filter wherein the end sections of at least two sides facing each other are in a mesh shape, which comprises using an electromagnetic wave shielding material (C), wherein a conductive layer (B) having the conductive parts being in the mesh shape of the geometric pattern is formed on one face of a polymer film (A) continuously in the machine direction of the polymer film (A), and cutting the mesh-like parts.
    Type: Application
    Filed: February 15, 2006
    Publication date: May 28, 2009
    Applicants: FUJIFILM Corporation, MITSUI CHEMICALS, INC.
    Inventors: Kentaro Okazaki, Akimitsu Morimoto, Tomoyuki Okamura, Toshihisa Kitagawa, Makoto Morohashi, Tomoaki Ito, Hiromi Minami
  • Publication number: 20090133333
    Abstract: A sliding door slides along the side of a vehicle. An electric drive unit is disposed on a floor of the vehicle and a lower guide rail is disposed under the floor. A lower roller bracket coupled to the sliding door moves along the lower guide rail back and forth. A door-opening outer tube mounted to the sliding door extends from the electric drive unit to a rear wire guide at the rear end of the lower guide rail. A door-closing outer tube extends from the electric drive unit to a front wire guide at the front end of the lower guide rail. A door-opening wire extends through the door-opening outer tube from the electric drive unit to the lower roller bracket. A door-closing wire extends through the door-closing outer tube from the electric drive unit to the lower roller bracket.
    Type: Application
    Filed: November 5, 2008
    Publication date: May 28, 2009
    Applicant: MITSUI MINING AND SMELTING CO., LTD.
    Inventors: Kazuhito YOKOMORI, Tomoya YAMAGUCHI
  • Patent number: 7537249
    Abstract: To accurately control opening and closing of a door, a device includes an opening/closing switch lever arranged at an opening end of a striker receiving groove, and configured to shift between a retreated position and an advanced position. When a striker is positioned in an engagement groove of a latch, the opening/closing switch lever is positioned at the retreated position, and when the striker is removed from the engagement groove and then from a receiving groove, the opening/closing switch lever is positioned at the advanced position. The device further includes an opening/closing switch that performs a switching operation when the opening/closing switch lever that has been positioned at the advanced position shifts toward the retreated position.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: May 26, 2009
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Mikio Ichinose, Etsuo Yamamoto, Michio Ohashi
  • Patent number: 7536900
    Abstract: A leak detecting system includes a leak detector that detects leakage of liquid stored in a tank based on fluctuation in a level of the liquid. The leak detector includes a liquid inlet/outlet portion through which the liquid in the tank flows in and out, a flow-rate measuring unit configured to measure an amount of flow of the liquid inside the leak detector, and a liquid retaining portion configured to retain liquid flowing therein through the liquid inlet/outlet portion. A lower end of the leak detector is detachably attached to a bottom plate of the tank, and an upper end of the leak detector is supported in a gauging port in a top plate in such a manner that the leak detector is movable in a vertical direction.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: May 26, 2009
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Toshimi Nakamura, Kiyoshi Yamagishi, Atsushi Koike, Kiyotaka Yanagi
  • Publication number: 20090131575
    Abstract: The disclosed is a colored polymer composition which includes carbon fibrous structures and a coloring agent in a polymer matrix, wherein the carbon fibrous structure comprises a three dimensional network of carbon fibers each having an outside diameter of 15-100 nm, wherein the carbon fibrous structure further comprises a granular part with which the carbon fibers are tied together in the state that the concerned carbon fibers are externally elongated therefrom, and wherein the granular part is produced in a growth process of the carbon fibers. It is the colored polymer composition which includes novel carbon fibrous structures having preferable physical properties as a filler for composite material, and of being able to improve electrical, mechanical and thermal properties of a matrix while maintaining other properties of the matrix, in a small adding amount, and which can show a color as pleases.
    Type: Application
    Filed: October 30, 2006
    Publication date: May 21, 2009
    Applicants: BUSSAN NANOTECH RESEARCH INSTITUTE INC., MITSUI & CO., LTD.
    Inventors: Koichi Handa, Subiantoro N/A, Takayuki Tsukada, Tsuyoshi Okubo, Jiayi Shan, Akira Yamauchi, Manabu Nagashima
  • Publication number: 20090131716
    Abstract: A chiral tetraaminophosphonium salt represented by formula (1) and a method for producing chiral ?-nitroalcohol comprising reacting an aldehyde or a ketone and a nitroalkane in the presence of the chiral tetraaminophosphonium salt represented by formula (1) and a base, or in the presence of a conjugated base of the chiral tetraaminophosphonium salt represented by formula (1): wherein R1 to R4 are independently a hydrogen atom or a monovalent hydrocarbon group; and, R1 and R2 are different groups or R3 and R4 are different groups.
    Type: Application
    Filed: September 17, 2008
    Publication date: May 21, 2009
    Applicants: Mitsui Chemicals, Inc., National University Corporation Nagoya University
    Inventors: Takashi OOI, Daisuke URAGUCHI
  • Publication number: 20090127915
    Abstract: The polyurethane foam composition of the present invention comprises at least water, a catalyst, a surfactant, a polyisocyanate, and a polyol and/or a polymer-dispersed polyol in which polymer fine particles obtained by polymerizing a compound having an unsaturated bond are dispersed in a polyol, wherein the polyol comprises at least (A) a plant-derived polyol produced by using a raw material obtained from plants and (B) a low-monol polyol having an overall degree of unsaturation of 0.050 meq/g or less. The polyurethane foam relating to the present invention is obtained by foaming this polyurethane foam composition. The polyurethane foam contributes to reducing environmental burdens and attains hardness and ball rebound suitable for a cushioning material and excellent durability in a balanced manner.
    Type: Application
    Filed: August 11, 2006
    Publication date: May 21, 2009
    Applicant: Mitsui Chemicals Polyurethanes, Inc.
    Inventors: Katsuhisa Nozawa, Masahiro Sasaki, Kazuhiko Ohkubo
  • Publication number: 20090127358
    Abstract: A media-agitation type wet disperser is provided which eliminates the group motion of media, attains high dispersion efficiency, and avoids wear problem. A cylindrical vessel having a feed opening for the treating material and a discharge opening for the treated material is equipped with a cylindrical separator and a rotor rotating while being fixed to a rotary shaft. The rotor is composed of pluralities of small rotors each having a cylindrical agitation part and a disk-shaped holding part. The agitation part has pluralities of throughholes connecting the inside and the outside thereof.
    Type: Application
    Filed: November 19, 2007
    Publication date: May 21, 2009
    Applicant: MITSUI MINING COMPANY, LIMITED
    Inventor: Susumu Gunji
  • Publication number: 20090126573
    Abstract: A deoxidizer for absorbing and removing oxygen from the surrounding atmosphere, comprising oxygen-deficient cerium oxide having a powder form with a specific surface area of 0.6 m2/g or less or the form of a formed body with a specific surface area of 3.0 m2/g or less. The deoxidizer reacts with oxygen even in a moisture-free atmosphere, does not trigger a metal detector nor heat up when microwaved in a microwave oven, and is prevented from abruptly reacting with oxygen and igniting even when brought into direct exposure to the air. The deoxidizer is therefore suited for oxygen removal, for example, inside food packages.
    Type: Application
    Filed: December 15, 2006
    Publication date: May 21, 2009
    Applicant: MITSUI MINING & SMELTING CO., LTD
    Inventor: Kazuya KINOSHITA
  • Publication number: 20090130604
    Abstract: The object is to resolve a finer pattern with a narrower line/space width by immersion lithography technology in the manufacture of a semiconductor or the like. A liquid for use in immersion exposure includes a saturated hydrocarbon compound as a main component, wherein the content of an impurity or impurities having an unsaturated bond or a heteroatom in its structure is respectively as follows: (i) 2 ?g/mL or less in total for a compound having a conjugated unsaturated bond; (ii) 30 ?g/mL or less in total for a compound having no conjugated unsaturated bond but having a non-conjugated unsaturated bond; (iii) 15 ?g/mL or less in total for amines having no unsaturated bond; and (iv) 100 ?g/mL or less in total for a heterocyclic compound, alcohols, ethers and a halogen-containing compound, other than above compounds (i) to (iii).
    Type: Application
    Filed: August 22, 2006
    Publication date: May 21, 2009
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Akifumi Kagayama, Norio Nakayama, Hiroaki Tamatani
  • Patent number: 7534542
    Abstract: Disclosed is a binder resin for a toner which contains a styrene-acrylic resin having a gel component and a small amount of a volatile component. Also disclosed are a method for producing the binder resin and a toner employing the binder resin. A binder resin (A) for a toner contains a styrene-acrylic resin having a structure derived from a carboxyl group and a structure derived from a glycidyl group, wherein the content (AIS) of a gel component is 1 mass %?AIS?50 mass % and the content (AVO) of a volatile component in the resin is AVO?200 ppm.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: May 19, 2009
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Takeshi Yoshida, Kazuya Sakata
  • Patent number: 7533926
    Abstract: A roller arm unit of the present invention has three or more pulleys by odd pieces. A door-opening cable and a door-closing cable extending from a power unit have tip ends fixed to a first and second end portions of a guide rail by way of the pulleys. The door-opening cable and the door-closing cable are intersected with each other between two neighboring pulleys. A path length of a take-up side cable becomes short and a path length of a pay-out side cable becomes long when the roller arm unit is caused to be swung due to influence of the curved portion.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: May 19, 2009
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Jiro Mitsui, Yousuke Matsuda, Hiroshi Satoh
  • Patent number: 7534909
    Abstract: A (meth)acrylic ester compound represented by the general formula (1) and a dental material containing the compound, wherein, in the formula, R11 represents a divalent aromatic group; R12 represents a hydrogen atom or a methyl group; R13 represents an aryl group; R14 represents a hydrogen atom or a methyl group; and X11, represents an oxygen atom or a sulfur atom. A polymerizable composition containing the (meth)acrylic ester compound and an optical part obtained by polymerizing the polymerizable composition are also provided. The cured composition can provide advantageous physical and optical properties.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: May 19, 2009
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Atsuo Otsuji, Masatoshi Takagi, Chojiro Higuchi, Akinori Nagatomo, Kouji Suesugi, Tetsuya Toida, Narimichi Honda