Patents Assigned to Mitsui
  • Patent number: 6800268
    Abstract: Disclosed herein is a method for producing potassium fluoroniobate crystals by which highly pure, large-sized potassium fluoroniobate crystals can be obtained in high yield and which is advantageous from the viewpoints of material cost and material-dissolving operation; and potassium fluoroniobate crystals. This production method comprises the first and second steps (a) and (b) of (a) adding a potassium-containing electrolyte to a starting material comprising niobium to precipitate potassium oxyfluoroniobate and/or fluoroniobate as coarse crystals, and separating the coarse crystals by filtration, and (b) dissolving the coarse crystals in a recrystallization solvent that is an aqueous solution comprising 12 to 35% by weight of hydrofluoric acid and that has been heated to a temperature of 50° C. or more, and cooling the solution to 40° C. or lower at a cooling rate of less than 20° C./h to precipitate potassium fluoroniobate as crystals.
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: October 5, 2004
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Yoshitsugu Uchino, Masanori Kinoshita
  • Patent number: 6800720
    Abstract: A hydrogenated ring-opening metathesis polymer which contains at least a structural unit [B] of the following general formula [3] and/or a structural unit [C] of the following general formula [4]: wherein, R8 to R11 and R13 to R16 each independently represent a hydrogen atom or a linear, branched or cyclic alkyl group having 1 to 10 carbon atoms, and X2s and X3s are the same or different and represent —O— or —CR122— wherein, R12 represents a hydrogen atom or a linear or branched alkyl group having 1 to 10 carbon atoms). One of Y1 and Y2 represents —(C═O)— and the other of Y1 and Y2 represents —CR182— wherein, R18 represents a hydrogen atom or a linear or branched alkyl group having 1 to 10 carbon atoms and m and n represent an integer of 0 or 1 to 3.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: October 5, 2004
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Yoshihiro Yamamoto, Tadahiro Sunaga, Tetsuya Hamada, Keiichi Ikeda, Ritsuko Shibahara, Hirofumi Io, Takashi Ochiai
  • Publication number: 20040191602
    Abstract: The invention provides a crosslinkable aromatic resin having a protonic acid group and a crosslinkable group, suitable for electrolytic membranes and binders used in fuel cells, etc., and electrolytic polymer membranes, binders and fuel cells using the resin. The crosslinkable aromatic resin has a crosslinkable group, which is not derived from the protonic acid group and can form a polymer network without any elimination component. This resin exhibits excellent ion conductivity, heat resistance, water resistance, adhesion property and low methanol permeability. Preferably, the crosslinkable group is composed of a C1 to C10 alkyl group directly bonded to the aromatic ring and/or an alkylene group having 1 to 3 carbon atoms in the main chain in which at least one carbon atom directly bonded to the aromatic ring bonds to hydrogen, and a carbonyl group, or a carbon-carbon double bond or triple bond.
    Type: Application
    Filed: April 9, 2004
    Publication date: September 30, 2004
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Junichi Ishikawa, Takashi Kuroki, Satoko Fujiyama, Takehiko Omi, Tomoyuki Nakata, Yuichi Okawa, Kazuhisa Miyazaki, Shigeharu Fujii, Shoji Tamai
  • Patent number: 6797770
    Abstract: A coating composition capable of forming an alkali-soluble lubricating film, which contains as main components an aqueous polyurethane composition (A) and a lubricating functionality-providing agent (B) at 1-30 wt % with respect to the solid content of the aqueous polyurethane composition, having excellent press moldability and scratch resistance, as well as lubricating surface treated metal articles with excellent press moldability and scratch resistance, that are coated with the coating composition to a dry film thickness of 0.5-5 &mgr;m. The coating composition preferably further contains as a main component silica particles (C) in an amount of 1-30 wt % with respect to the solid content of the aqueous polyurethane composition.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: September 28, 2004
    Assignees: Nippon Steel Corporation, Mitsui Takeda Chemicals, INC
    Inventors: Yoichiro Mori, Makoto Yamasaki, Masahiro Fuda, Ryosuke Wake, Tsutomu Tawa, Chikako Kouda, Fumiaki Hirata
  • Patent number: 6797805
    Abstract: Organic polymers having water contact angles of 20° or smaller, preferably 7° or smaller and equipped with both high wettability and high transparency. The organic polymers may contain as partial structures polar structures of about 3 debyes or higher in dipole moment and are available especially from polymerization of polymerizable compounds having alkylene(thio)urea structures.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: September 28, 2004
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Koju Okazaki, Ryouichi Seki, Shiro Nakatsuka
  • Patent number: 6798048
    Abstract: A 2-metal layer TAB and a both-sided CSP.BGA tape having an insulating substrate and a wiring layer provided on at least both sides of the substrate, the substrate having evenly spaced sprocket holes on both width direction edges in the longitudinal direction thereof and also having through-holes formed with a punching press, and the through-holes being filled with a conductor by means of a punching press such that the conductor and the wiring layers are electrically connected, which is characterized by having round pilot holes between the sprocket holes formed in the longitudinal direction thereof; and a process of producing the same.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: September 28, 2004
    Assignees: Mitsui Mining & Smelting Company, Ltd., Suzuki Co., Ltd.
    Inventors: Akira Ichiryu, Tatsuo Kataoka, Hirokazu Kawamura, Katsuhiko Hayashi, Masahito Ishii
  • Patent number: 6797202
    Abstract: The present invention can provide particles for electro-rheological fluid for providing a high electro-rheological effect over a wide temperature range at low electric power consumption, and having high strength and excellent durability, not being susceptible to break-up due to the load of stress. Particles for an electro-rheological fluid of the present invention comprise spherical carbonaceous particles, obtained substantially from a solvent and a condensation product of a methylene type bond of aromatic sulfonic acid or a salt thereof.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: September 28, 2004
    Assignees: Bridgestone Corporaton, Mitsui Mining Company, Limited
    Inventors: Shigeki Endo, Howard See, Tasuku Saito, Koji Sakata, Kenji Fukuda, Youichiro Hara, Tatsuo Umeno
  • Patent number: 6797127
    Abstract: A method comprising a first step for radiating ultraviolet rays of a short wavelength of 110 nm or longer, but shorter than 200 nm to the gas, for example, an air to be treated to generate ozone, a second step for radiating ultraviolet rays of a medium wavelength of 200 nm or longer, but shorter than 300 nm to the air treated in the first step to form active oxygen, and a third step for radiating ultraviolet rays of a long wavelength of 300 nm or longer, but shorter than 380 nm to the air treated in the second step to convert the active oxygen into oxygen molecule in ground state, at least the second and/or third step being conducted in the presence of a photocatalyst comprising particles of titanium oxide of an orthorhombic crystal system or particles of titanium oxide of an orthorhombic crystal system supporting fine particles of another metal.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: September 28, 2004
    Assignee: Mitsui Engineering & Shipbuilding Co., Ltd and Eco-Logy Corporation
    Inventors: Toshiaki Murata, Masamichi Kikuchi, Kazuo Abe
  • Publication number: 20040186237
    Abstract: A soft resin composition of the present invention comprises a polyethylene resin (A) and an ethylene/&agr;-olefin random copolymer (B) comprising ethylene and an &agr;-olefin having 3 to 20 carbon atoms at a specific proportion, wherein an MFR and density of the polyethylene resin (A), and a density, intrinsic viscosity, glass transition temperature, crystallinity, molecular weight distribution, B value and g&eegr;* values of the copolymer (B) are each in a specific range. The soft resin composition is excellent in melt flow characteristics, namely excellent in moldability, and is capable of providing moldings excellent in balance between pliability and heat resistance.
    Type: Application
    Filed: January 29, 2004
    Publication date: September 23, 2004
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Mamoru Kagami, Yasuo Tanaka, Masahiro Sugi
  • Publication number: 20040182008
    Abstract: In the present powered sliding device for a vehicle slide door, when a center bracket is relatively rotated with respect to a slide door due to an overview shape of a center rail during a sliding movement of the slide door, the center pulley is relatively displaced in a certain amount by the rotation of the center bracket with respect to the slide door, but the center pulley is not displaced any further than the certain amount by the rotation of the center bracket
    Type: Application
    Filed: June 19, 2003
    Publication date: September 23, 2004
    Applicant: Mitsui Kinzoku Kogyo Kabushiki Kaisha
    Inventors: Kazuhito Yokomori, Shoji Wakatsuki
  • Patent number: 6794471
    Abstract: An acrylic ester compound represented by the general formula (1): wherein, R1 and R2 represent independently a hydrogen atom, an alkyl group which may have a substituent, an aromatic alkyl group which may have a substituent or an aromatic residue which may have a substituent, respectively; R3 represents a hydrogen atom or an alkyl group; A represents a divalent organic group; and X represents a sulfur atom or an oxygen atom; provided that when X is an oxygen atom, R1 represents an aromatic residue that may have a substituent, a polymerizable composition comprising the compound, and a cured article and optical components obtained by polymerizing the polymerizable composition.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: September 21, 2004
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Tadashi Ohkuma, Masao Imai, Mitsuo Nakamura, Atsuo Otsuji
  • Publication number: 20040179565
    Abstract: A semiconductor laser device emitting a laser beam having stable emitting wavelength and a multimode spectrum is provided.
    Type: Application
    Filed: March 18, 2004
    Publication date: September 16, 2004
    Applicants: MITSUI CHEMICALS INC., The Furukawa Electric Co., Ltd.
    Inventors: Atsushi Ohkubo, Satoru Okada, Tsuyoshi Fujimoto, Takeshi Koiso, Kiyofumi Muro, Michio Ohkubo, Yutaka Ohki
  • Patent number: 6791492
    Abstract: A GPS positioning system comprises a fixed station and a mobile station. The mobile station has: positional positioning means; imaging means; direction detecting means; and arithmetic processing means. The positional positioning means measures positional coordinates by receiving radio weve from a satellite. The imaging means is arranged in a predetermined position for the GPS positional positioning means. The direction detecting means detects a photographing direction during photographig by the imaging means. The arithmetic processing means forms landscape data in which imaging data that is an output from the imaging means is associated with orientation data that is an output from the direction detecting means.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: September 14, 2004
    Assignees: Mitsui & Co., Ltd., Kabushiki Kaisha Topcon
    Inventors: Koji Miyasaka, Masakazu Mori, Yuji Kobayashi, Kazuyuki Sakaki, Kenichi Takasu
  • Patent number: 6790319
    Abstract: A method for recovering a titanium compound includes bringing a waste solution containing a titanium alkoxide into contact with a halogenating agent to convert at least a part of the titanium alkoxide to a titanium halide, and then distilling the solution containing the titanium halide to recover the titanium halide from the solution, or the method includes distilling a waste solution containing a titanium alkoxide and a titanium halide to recover at least a part of the titanium halide from the waste solution, bringing a residue in a distiller after the distillation into contact with a halogenating agent to convert at least a part of the titanium alkoxide to a titanium halide, and distilling the solution containing the titanium halide to recover the titanium halide from the solution. The method can recover an increased amount of a titanium compound from a waste solution containing a titanium alkoxide.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: September 14, 2004
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Takumi Kitahara, Tetsuya Nakano
  • Publication number: 20040174022
    Abstract: An anti-panic mechanism comprises a lock lever displaceable between an unlocked position and a locked position, an over center spring urging the lock lever to either side of the unlocked position and locked position with a dead point, an open link displaceable between an engaging position and a non-engaging position, an output member displacing the lock lever by a motor, an anti-panic spring urging the open link toward the engaging position from the non-engaging position, a connecting lever connecting the open link to the lock lever. The connecting lever releases the open link before the lock lever crosses over the dead point of the over center spring when the output member is rotated in the unlocking direction.
    Type: Application
    Filed: December 15, 2003
    Publication date: September 9, 2004
    Applicant: Mitsui Kinzoku Kogyo Kabushiki Kaisha
    Inventor: Jiro Inoue
  • Patent number: 6787623
    Abstract: A tire provided with a tire tread made from a rubber composition comprising (A) a random copolymer based on non-conjugated cyclic polyene comprising structural units originated from one or more &agr;-olefins (A1) and originated from one or more non-conjugated cyclic polyene (A2), the said random copolymer having a content of the structural unit(s) originated from one or more &agr;-olefins (A1) in the range of 93 to 70 mole %; a content of the structural unit originated from one or more non-conjugated cyclic polyene (A2) in the range of 7 to 30 mole %; an intrinsic viscosity [&eegr;], determined in decalin at 135° C., in the range of 0.01 to 20 dl/g; a glass transition temperature (Tg) of not higher than 40° C.; and an iodine value in the range of 50 to 150, and (B) a rubber based on diene, in a weight proportion of {the random copolymer based on non-conjugated cyclic polyene (A)} versus {the rubber based on diene (B)} in the range from 60/40 to 0.1/99.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: September 7, 2004
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Hidetatsu Murakami, Keiji Okada, Masaaki Kawasaki, Kotaro Ichino
  • Publication number: 20040170897
    Abstract: An alkaline battery having as an anode a zinc or zinc alloy powder obtained by dropping molten zinc or a molten zinc alloy to form a molten metal droplets stream and striking an atomizing medium jet emitted from a nozzle against the molten metal stream at right angles to atomize the molten zinc or the molten zinc alloy, wherein two or more the nozzles are arranged in parallel to each other, the orifice of each of the nozzles has a V-shaped, U-shaped, X-shaped or arc-shaped cross-section, the atomizing medium is air or an inert gas, two or more the molten metal streams have at least two different flow rates selected from a range 0.04 to 025 kg/sec, and two or more of the atomizing medium jets have at least two different atomizing pressures selected from a range 4 to 9 kg/cm2.
    Type: Application
    Filed: March 5, 2004
    Publication date: September 2, 2004
    Applicants: MITSUI MINING & SMELTING COMPANY, LTD, MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Akira Oyama, Tadayoshi Odahara, Seiji Fuchino, Mitsuo Shinoda, Hisaji Shimomura
  • Patent number: 6784238
    Abstract: A primer composition comprises (I) a modified copolymer obtainable by addition of a polar group represented by the following formula (1) or (2) to at least one (co)polymer selected from an olefin (co)polymer, a halogenated olefin (co)polymer, a styrene/conjugated diene/styrene tri-block copolymer or its hydrogenated product and a halogenated styrene/conjugated diene/styrene tri-block copolymer or its hydrogenated product, wherein the modified copolymer contains the polar group in an amount of from 1×10−3 to 250×10−3 mol based on 100 g of the modified copolymer, and (II) an organic solvent; in the formulas (1) and (2), R1 is hydrogen or an alkyl group of 1 to 6 carbon atoms, R2 is an alkylene group of 1 to 6 carbon atoms and n is an integer of 1 to 20.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: August 31, 2004
    Assignee: Mitsui Chemicals, Inc.
    Inventor: Suguru Tokita
  • Patent number: 6782743
    Abstract: A flow metering method and a flowmeter capable of providing an electric output corresponding to the metered flow rate of metered fluid by an electric circuit including a thermal type flow sensor disposed in a metering flow path and an electric output corresponding to the reference flow rate of the metered fluid by an electric circuit including a reference thermal type flow sensor disposed in a reference flow path allowing the metered flow to flow freely; the flow metering method, comprising the steps of providing a calibration curve including a reference flow calibration curve and a measurement flow calibration curve at a plurality of temperatures for reference fluid beforehand, providing the deviated amount of the temperature of the reference flow calibration curve from the reference temperature corresponding to the electric output based on the electric output corresponding to the reference flow calibration curve based on the deviated amount, and converting the temperature corrected amount to the flow value
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: August 31, 2004
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Atsushi Koike, Kiyoshi Yamagishi, Shinya Furuki, Kenichi Hiraizumi
  • Patent number: 6784255
    Abstract: This invention relates to a rubber composition for extrusion and molding comprising 100 weight parts of ethylene/&agr;-olefin/non-conjugated polyene copolymer (A) composed of ethylene, &agr;-olefin having carbon atoms of 3-20 and non-conjugated polyene, and at least 30-300 weight parts of carbon black (B), and 1.0×10−5-5.0×10−3 mol of an alkoxysilane compound shown by the following formula (I): wherein, R is alkyl or alkoxy, R1 is alkyl or phenyl, n is 0, 1 or 2, R2 is a bivalent hydrocarbon, R3 is arylene group, m and p are 0 or 1 respectively, and m and p are not 0 at a same time, q is 1 or 2, and D is —SCN or —SH when q is 1, and —Sx— when q is 2 (wherein x is an integer of 2-8).
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: August 31, 2004
    Assignees: Mitsui Chemicals Inc., Degussa AG
    Inventors: Hidenari Nakahama, Yuji Ishii, Mikio Hosoya, Masaaki Kawasaki