Patents Assigned to Mitsui
  • Patent number: 7334455
    Abstract: A leak detector comprising a sensor unit including a measuring slim-tube (13b) via the lower end of which a liquid in a tank is led in/out, a measuring tube (17) connected to the upper end thereof and having a sectional area larger than that thereof, and temperature sensors (133, 134) and a heater (135) provided to the slim-tube (13b), and a leak detection control unit (15a) connected to the sensor unit.
    Type: Grant
    Filed: August 30, 2004
    Date of Patent: February 26, 2008
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Kiyotaka Yanagi, Atsushi Koike, Toshimi Nakamura, Kiyoshi Yamagishi, Hideshi Sekimori
  • Patent number: 7334498
    Abstract: An initial tension device has a wire cable for connecting a drive unit and a movable member, a tension case fixed to an immovable member, a regular retainer engageable with an outer cable of the wire cable, and a slot formed in the tension case to extend in the longitudinal direction of the wire cable. The regular retainer engaged with the outer cable moves together with the outer cable by the tension applied to the wire cable through the length defined by the slot. The regular retainer is engaged with the outer cable in the state where a maximum tension is applied to the wire cable.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: February 26, 2008
    Assignee: Mitsui Kinzoku Kogyo Kabushiki Kaisha
    Inventors: Kazuhito Yokomori, Shoji Wakatsuki
  • Publication number: 20080042892
    Abstract: A combined type buried object detection sensor is provided, in which a MD and a GPR are integrated to improve a detectivity. A buried object detection sensor 10 has a constitution in which plural antenna elements composing a GPR 14 are disposed on a circumference, an inner coil 16 of a MD 12 is arranged at a center portion of the GPR 14 and an outer coil 18 of the MD 12 is arranged at a periphery of the GPR 14, the GPR 14 has slits 20 separating the respective antenna elements, and the slits 20 between adjacent antenna elements are connected by a metal leaf 36.
    Type: Application
    Filed: February 28, 2006
    Publication date: February 21, 2008
    Applicant: MITSUI ENGINEERING & SHIPBUILDING CO., LTD.
    Inventors: Naoto Aomori, Yoshiyuki Sakamoto, Chihiro Joumuta, Fujio Oka
  • Publication number: 20080044655
    Abstract: Ethylene-based copolymer microparticles and functional group-containing ethylene-based copolymer microparticles that have particle diameter smaller than that of conventional polyethylene fine-particles, no inter-particle agglomeration, very narrow particle size distribution, and high sphericity are provided, in which requirements (A) to (E): (A) The intrinsic viscosity [?] measured in decalin at 135° C. is in the range of 0.1 to 50 dl/g, (B) at least 95 wt % or more of particles pass through a mesh screen with an opening of 37 ?m, (C) the median diameter (d50) measured by laser diffraction scattering is 3 ?m?d50?25 ?m, (D) the circularity coefficient is 0.85 or more, and (E) the variation coefficient of particle diameter (Cv) is 20% or less. Non-agglomerated spherical magnesium-containing microparticles used as magnesium-containing carrier component for olefin-polymerization catalysts that can manufacture the above microparticles are also provided.
    Type: Application
    Filed: November 18, 2005
    Publication date: February 21, 2008
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Yasushi Nakayama, Naoto Matsukawa, Junji Saito, Hideki Bando, Yoshiho Sonobe, Kenji Michiue, Makoto Mitani, Terunori Fujita
  • Publication number: 20080044667
    Abstract: The modified phenolic resin of the present invention has a specific structure in which a side chain of an aromatic ring having a hydroxyl group in a phenolic resin that is an alternate copolymer of a phenolic compound and a compound having a divalent connecting group, is substituted with a group represented by general formula (1-1). By using the modified phenolic resin as a hardener for epoxy resins, there are provided an epoxy resin, a composition thereof, and a cured product thereof having excellent adhesion and flame retardancy without impairing properties of conventional phenolic resins such as gel time, glass transition temperature, moisture absorption, and mechanical properties. (In the formula, R1 represents a C1-8 linear, branched, or cyclic hydrocarbon group.
    Type: Application
    Filed: December 16, 2005
    Publication date: February 21, 2008
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Takaharu Abe, Sunao Maeda, Tatsuhiro Urakami, Yukio Fukui, Masanobu Maeda, Hiroaki Narisawa
  • Publication number: 20080045650
    Abstract: An object of the present invention is to provide an aqueous polyurethane resin in which stable emulsion is formed, the balance between hydrophilicity and hydrophobicity is controlled and an obtained film has desired permeability and good stability, a method for producing the aqueous polyurethane resin, and a film obtained from the aqueous polyurethane resin. The aqueous polyurethane resin of the present invention includes a plurality of polyurethane resins obtained by reacting macropolyol, polyisocyanate, and a chain extender, and each of the aqueous polyurethane resins contains the macropolyols which are different from one another, and each of the aqueous polyurethane resins is chemically bonded partially to one another through the chain extender. By casting or coating the aqueous polyurethane resin, the film is obtained.
    Type: Application
    Filed: December 8, 2005
    Publication date: February 21, 2008
    Applicant: Mitsui Chemicals Polyurethanes, Inc.
    Inventors: Masahiro Isobe, Fumiaki Hirata
  • Patent number: 7333045
    Abstract: A combined type buried object detection sensor is provided, in which a MD and a GPR are integrated to improve a detectivity. A buried object detection sensor 10 has a constitution in which plural antenna elements composing a GPR 14 are disposed on a circumference, an inner coil 16 of a MD 12 is arranged at a center portion of the GPR 14 and an outer coil 18 of the MD 12 is arranged at a periphery of the GPR 14, the GPR 14 has slits 20 separating the respective antenna elements, and the slits 20 between adjacent antenna elements are connected by a metal leaf 36.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: February 19, 2008
    Assignee: Mitsui Engineering & Shipbuilding Co., Ltd.
    Inventors: Naoto Aomori, Yoshiyuki Sakamoto, Chihiro Joumuta, Fujio Oka
  • Patent number: 7333348
    Abstract: There is provided a high-efficiency DC-DC converter which comprises a voltage resonance circuit to which electric power from a low-voltage direct-current power supply, including a household fuel cell and a solar cell, is input and performs DC-AC conversion by zero-voltage switching, an insulating high-frequency transformer which transmits the converted power, a current resonance circuit which is provided on the secondary side of the transformer and performs zero-current switching, a rectifier circuit which rectifies the output from the current resonance circuit, and a smoothing circuit which rectifies the output from the rectifier circuit.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: February 19, 2008
    Assignees: Mitsui & Co., Ltd., Winz Corporation
    Inventors: Shoji Horiuchi, Yoshimichi Nakamura, Nozomi Tan
  • Patent number: 7332070
    Abstract: A specific nonionic surfactant is added to a component mainly comprising hydrocarbons before passing through a heat exchanger in a petrochemical plant or a polyolefin production plant, whereby fouling of the heat exchanger can be efficiently prevented, that is, the performance of the heat exchanger can be prevented from being deteriorated, and long-term operation is feasible without sacrificing the speed of production. The nonionic surfactant is preferably a polyoxyalkylene compound represented by the general formula [I] below, more preferably a compound represented by the general formula [II] below. R1—O—[CH2—CH(R3)—O]k—R2[I] wherein R1, R2 and R3 are selected from a hydrogen atom, a C1 to C20 alkyl group, a C6 to C20 aryl group and a C1 to C20 acyl group, and may be the same or different from each other. HO—(CH2CH2O)m—[CH2CH(CH3)O]n—(CH2CH2O)pH[II] wherein m, n and p each represent the average number of repeating units, and m is in the range of 1 to 20, n is 2 to 50 and p is 1 to 20.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: February 19, 2008
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Hiroto Nishida, Kouji Kishinami, Tomohiro Arase
  • Publication number: 20080038537
    Abstract: A film-like material of the present invention comprises a multi-layered film comprising a hydrophilic porous film containing a thermoplastic resin as a main component and having a colored part on one face thereof and, provided on the other face thereof, a layer for preventing permeation of water. Furthermore, the hydrophilic porous film is obtained by forming a thermoplastic resin composition into a film, and then stretching the film in at least a uniaxial direction, wherein the thermoplastic resin composition comprises 25 to 80 parts by mass of a thermoplastic resin and 75 to 20 parts by mass of a filler and further a hydrophilicity imparting agent in an amount of 0.1 to 10 parts by mass relative to 100 parts by mass, where the total amount of the thermoplastic resin and the filler is 100 parts by mass.
    Type: Application
    Filed: May 31, 2004
    Publication date: February 14, 2008
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Shigeru Yano, Taro Ichikawa
  • Publication number: 20080038982
    Abstract: A nonwoven fabric laminate possesses excellent elasticity, softness, water resistance, fuzz resistance and curl resistance, and has less stickiness. The nonwoven fabric laminate includes at least one meltblown nonwoven fabric layer and mixed-fiber spunbonded nonwoven fabric layers on both surfaces of the at least one meltblown nonwoven fabric layer, the mixed-fiber spunbonded nonwoven fabric layers each comprising mixed fibers including 10 to 90 wt % of continuous fibers of a thermoplastic elastomer (A) and 90 to 10 wt % of continuous fibers of a thermoplastic resin (B) other than the thermoplastic elastomer (A) ((A)+(B)=100 wt %).
    Type: Application
    Filed: December 27, 2006
    Publication date: February 14, 2008
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Shigeyuki Motomura, Kenichi Suzuki, Naosuke Kunimoto
  • Publication number: 20080039609
    Abstract: A thermoplastic resin having a glass transition temperature of 130° C. or more, a saturated water absorption ratio is 0.1 mass % or less, and a stress-optical coefficient CR that satisfies |CR|?3×10?10Pa?1. The resin can be obtained by a random additional polymerization of ethylene and tetracyclo[4.4.0.12,5.17,10]-3-dodecene. A molded product of present invention comprises of the thermoplastic resin. The thermoplastic resin can provide a high heat resistant molded product which is small in property changes caused by water absorption and has an excellent optical property.
    Type: Application
    Filed: June 29, 2005
    Publication date: February 14, 2008
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Atsushi Shibuya, Toshiyuki Hirose
  • Publication number: 20080038497
    Abstract: To provide a method of manufacturing a resin hollow molded body wherein, predetermined parts can be simply attached when attaching them in the inside of the blow molded hollow body; and the resin hollow molded body, such as a vehicle fuel tank containing a volatile liquid inside thereof, has a good barrier property against a gas component. (Means for Solving the Problem) There is provided a method for obtaining a product of a hollow molded body characterized in that: a thermoplastic resin parison 6, extruded to a tubular state, is expanded by blow molding; then dies 2, 4 are once divided to assemble predetermined parts 32, 34 inside of the hollow molded body; and the surfaces of the divided dies are joined again.
    Type: Application
    Filed: June 1, 2005
    Publication date: February 14, 2008
    Applicant: MITSUI CHEMICALS, INC.
    Inventor: Mikio Nemoto
  • Publication number: 20080036964
    Abstract: According to the present invention, there are provided a plastic polarized lens with excellent processability and the like, and a method of producing the same. The plastic polarized lens is obtained by injecting a mixture of a specified isocyanate compound and a specified active hydrogen compound into a lens-forming mold wherein a polarized film containing a thermoplastic polyester is fixed, followed by polymerization and curing.
    Type: Application
    Filed: August 6, 2007
    Publication date: February 14, 2008
    Applicants: Mitsui Chemicals, Inc., Hopnic Laboratory Co., Ltd.
    Inventors: Toru Miura, Yoshimitsu Aiiso
  • Publication number: 20080032370
    Abstract: Hydroxycarboxylic acids including glycolic acid are promising compounds for use as a raw material for polymers or an intermediate for medicines. However, the processes for the production of hydroxycarboxylic acids which are presently known have a problem that none of them can supply an inexpensive high-purity hydroxycarboxylic acid. An object of the invention is to produce a microorganism which highly yields in a short time a hydroxycarboxylic acid reduced in impurity content and to provide a process for producing a hydroxycarboxylic acid including glycolic acid using the microorganism. A microorganism is produced, which has the imparted or enhanced activity of an enzyme catalyzing a reaction from ethylene glycol to glycolaldehyde. Using this microorganism, a hydroxycarboxylic acid including glycolic acid which is reduced in impurity content is highly produced in a short time. The production process enables a hydroxycarboxylic acid having high purity to be supplied at low cost.
    Type: Application
    Filed: April 19, 2005
    Publication date: February 7, 2008
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Mitsufumi Wada, Daisuke Mochizuki, Hitoshi Takahashi, Takashi Morishige, Katsuyuki Takahashi
  • Publication number: 20080032198
    Abstract: A positive electrode active material for a lithium battery is provided which offers high-temperature storage property and battery properties and comprises manganese dioxide having a crystal structure that exhibits an X-ray diffraction pattern in which peaks having a peak intensity ratio of not less than 0.05 with respect to the peak at 2?=37.3°±0.5° are present at positions of 2?=18.2°±0.5°, 19.5°±0.5°, 28.6°±0.5°, 56.6°±0.5°, 59.1°±0.5°, and 65.1°±0.5°, or further at 2?=22.0°±1.0°, the X-ray diffraction pattern being obtained using a powder X-ray diffraction device (XRD) that uses CuK?1 rays.
    Type: Application
    Filed: June 20, 2005
    Publication date: February 7, 2008
    Applicant: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Munetoshi Yamaguchi, Shinya Kagei, Yoshimi Hata
  • Publication number: 20080033154
    Abstract: A 3-aminomethyltetrahydrofuran derivative is produced by preparing a 3-cyanotetrahydrofuran derivative in a high yield from a malic acid derivative, and reducing the cyano group of the 3-cyanotetrahydrofuran derivative. The process can produce the 3-cyanotetrahydrofuran derivative in a high yield from inexpensive industrial materials.
    Type: Application
    Filed: June 2, 2005
    Publication date: February 7, 2008
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Yoshihisa Inoue, Setsuko Funaki, Tetsuya Hamada, Yoshihiro Yamamoto, Isao Hara, Takaomi Hayashi, Miyuki Konno, Shinobu Aoki
  • Patent number: 7326900
    Abstract: A weak light detector (40) which can detect two-dimensional weak radiation at a high speed with high precision. The fluorescence from the DNA chip (46) is incident on a detection part (56) of a detection unit (52). The detection unit (56) has a detection module with a number of detection transistors being placed to correspond to cells of the DNA chip (46). The detection part (56) performs photoelectric conversion of the incident fluorescence (photon) to emit electrons, and amplifies the electrons to make them incident on the detection module. The detection transistors are switched based the Hadamard matrix to operate. A data processing unit (54) reads an output signal of the detection part (56), then performs Hadamard inversion, and determines the detection transistor which outputs the signal.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: February 5, 2008
    Assignee: Mitsui Engineering & Shipbuilding Co., Ltd.
    Inventors: Noriaki Kimura, Takayoshi Yumii
  • Publication number: 20080026212
    Abstract: A film splicer including a base body on which two films to be spliced are aligned such that splicing ends thereof make contact with each other, an adhesive tape applied to the splicing ends of the films to join them, and a splicer arm that is folded against the base body to bore sprocket holes by punching members and to cut the adhesive tape by cutting members to a length corresponding to the length in the width direction of the films, wherein the cutting members comprise punches capable of punching out both the adhesive tape and excessive edge areas in the width direction of the films and that are formed with tapered portions having an angle relative to a cutting direction that extends in the longer direction of the films, the tapered portions being formed at both end areas in the cutting direction, whereby edge areas in the width direction of the films spliced together are free of steps.
    Type: Application
    Filed: September 20, 2007
    Publication date: January 31, 2008
    Applicant: Mitsui Mining & Smelting Co., Ltd.
    Inventor: Nobuaki Fujii
  • Publication number: 20080027198
    Abstract: A compound having two or more thiol groups and an atom selected from metal atoms in a molecule, a polythiol composition containing such a compound, a polymerizable composition containing such a polythiol composition, a resin obtained by polymerization of such a polymerizable composition, and an optical component obtained from such a resin are provided. The polymerizable composition can be a raw material for a resin having high transparency, good heat resistance and mechanical strength required for optical components such as plastic lenses and the like, while attaining a high refractive index (nd) exceeding 1.7.
    Type: Application
    Filed: November 16, 2005
    Publication date: January 31, 2008
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Hiroshi Naruse, Atsuo Otsuji, Mitsuo Nakamura