Patents Assigned to Mitsui
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Publication number: 20080281139Abstract: [PROBLEMS] To provide a catalyst for dimerizing propylene which has excellent propylene dimerization activity and a method of producing 4-methyl-1-pentene using the catalyst. [MEANS FOR SOLVING PROBLEMS] A catalyst for dimerizing propylene which contains a transition metal complex [A], and as needed, at least one compound [B] selected from the group consisting of an organometallic compound (b-1), an organoaluminumoxy compound (b-2), and a compound (b-3) which reacts with the transition metal complex [A] to form an ion pair, and a method of dimerizing propylene using the catalyst.Type: ApplicationFiled: February 7, 2006Publication date: November 13, 2008Applicant: MITSUI CHEMICALS, INC.Inventors: Jun Okuda, Yasuhiko Suzuki
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Patent number: 7449533Abstract: The metallocene compound according to the invention and the olefin polymerization catalyst containing the compound are intended to produce a catalyst capable of preparing an isotactic polymer with a high polymerization activity. The metallocene compound contains a substituted cyclopentadienyl group and a (substituted) fluorenyl group and has a structure wherein these groups are bridged by a hydrocarbon group or the like. The process for preparing a metallocene compound according to the invention is intended to selectively prepare a specific metallocene compound so as not to produce an isomer, and in this process an intermediate product is synthesized by a specific method.Type: GrantFiled: February 10, 2005Date of Patent: November 11, 2008Assignee: Mitsui Chemicals, Inc.Inventors: Koji Kawai, Masahiro Yamashita, Yasushi Tohi, Nobuo Kawahara, Kenji Michiue, Hiromu Kaneyoshi, Ryoji Mori
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Patent number: 7449048Abstract: The invention provides a method of reusing an inert gas in a polymer production plant by removing impurities such as a polymerization solvent and polymerization monomers from an inert gas discharged from a polymer production plant. The method of reusing an inert gas comprises a step of adsorbing and removing a polymerization solvent and polymerization monomers contained in an inert gas by passing, through an adsorbent layer, an inert gas discharged from a polymer production plant, wherein an inert gas reaching a predetermined purity by removing the polymerization solvent and polymerization monomers in the step of adsorption and removal is reused in the polymer production plant.Type: GrantFiled: March 19, 2003Date of Patent: November 11, 2008Assignee: Mitsui Chemicals, Inc.Inventors: Hiroto Nishida, Kenta Tsubohara, Etsurou Okamoto, Yoshiaki Deguchi
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Patent number: 7449247Abstract: The present invention provides olefin polymer compositions that provide an easy-peelable sealant showing low temperature dependence of heat-sealing strength, excellent low-temperature sealability, sealing properties and appearance of the peeling section when used with polypropylene. In particular, the present invention includes as a composition having excellent heat and oil resistance a composition comprising in a particular proportion a propylene-based polymer (A), ethylene-based polymer (B) having a density of not less than 900 kg/m3, a non-crystalline or low-crystalline ethylene/?-olefin copolymer (C) and a tackifier resin (D), and as a composition having excellent oil resistance a composition comprising in a particular proportion an ethylene/unsaturated ester copolymer (E), a propylene-based polymer (A), a non-crystalline or low-crystalline ethylene/?-olefin copolymer (C) and a tackifier resin (D).Type: GrantFiled: April 8, 2004Date of Patent: November 11, 2008Assignee: Du Pont-Mitsui Polychemicals Co., Ltd.Inventor: Masanobu Sato
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Publication number: 20080274871Abstract: A jig for calcining an electronic component including a substrate 11 and a zirconia layer 12 coated on a surface of the substrate characterized in that the zirconia layer including one or more metal oxides forming a liquid phase is calcined for improving peel-off resistance and wear resistance to crystallize the liquid phase after the calcination. In the jig for calcining the electronic component, when the zirconia layer is formed by using an inexpensive method such as an application method, the zirconia layer is not peeled off from the substrate, and grains are not detached.Type: ApplicationFiled: July 2, 2008Publication date: November 6, 2008Applicant: MITSUI MINING & SMELTING CO., LTD.Inventors: Kazutomo HOSHINO, Hitoshi Kajino, Yasuhisa Idutsu, Koushi Horiuchi
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Publication number: 20080271847Abstract: In a gas diffusion electrode assembly, and in an electrolyzer using the same, a bonding piece having on at least one surface a perfluorosulfonic acid layer, a perfluorosulfonyl fluoride layer or an alkyl ester of perfluorocarboxylic acid layer is positioned at its perfluoro compound layer surface with respect to the gas diffusion electrode assembly. Adjacent gas diffusion electrodes are heat fusion bonded together, or heat fusion bonding is carried out using the bonding piece in a frame form. Adjacent gas diffusion electrodes are sealed up by heat fusion bonding, using a material that is similar to the material that forms the gas diffusion electrodes.Type: ApplicationFiled: July 1, 2008Publication date: November 6, 2008Applicants: CHLORINE ENGINEERS CORP., LTD., TOSOH CORPORATION, MITSUI CHEMICALS, INC., TOAGOSEI CO., LTD., KANEKA CORPORATION, ASAHI GLASS COMPANY, LIMITED, ASAHI KASEI CHEMICALS CORPORATION, DAISO CO., LTD., TOKUYAMA CORPORATIONInventors: Shinji Katayama, Kiyohito Asaumi, Hiroaki Aikawa, Tsugiyoshi Osakabe, Mitsuharu Hamamori, Tatsuhito Kimura, Koji Saiki, Kenji Nonomura, Naoya Okada, Osamu Ichinose
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Patent number: 7445852Abstract: A heat treatment was carried out in a pressurized condition on an amorphous metal ribbon containing Fe and Co as main components and being represented by the general formula: (Co(1?c)Fec)100?a?bXaYb. (In the formula, X represents at least one species of element selected from Si, B, C and Ge, Y represents at least one species of element selected from Zr, Nb, Ti, Hf, Ta, W, Cr, Mo, V, Ni, P, Al, Pt, Rh, Ru, Sn, Sb, Cu, Mn and rare earth elements, c, a and b satisfy 0?c?1.0, 10<a?35 and 0?b?30, respectively, and a and b are represented in terms of atomic %.) By carrying out a heat treatment in a pressurized condition in the same manner on a magnetic substrate comprising an amorphous metal ribbon and a heat resistant resin or a laminate of the substrates, not only the magnetic properties but also the mechanical properties and the processability are improved.Type: GrantFiled: July 6, 2004Date of Patent: November 4, 2008Assignee: Mitsui Chemicals, Inc.Inventors: Nobuhiro Maruko, Mitsunobu Yoshida, Hiroshi Watanabe, Takashi Ono, Hidenobu Nogi, Tomoyuki Nakata
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Patent number: 7445348Abstract: A reflector having a structure in which a high refractive index layer, a low refractive index layer, and a metal layer mainly composed of silver or aluminum are sequentially arranged on a polymer base. The reflector can realize a higher reflectance than the conventional reflective bodies by using a polymer base wherein the atoms measured by XPS which constitute the surface of the polymer base are substantially identical with those constituting the inside of the polymer base. Furthermore, such a reflector can be used for a reflector, a reflector under a light-guiding plate, a backlight device and a liquid crystal display. The polymer base can be obtained by bringing a polymer base and a liquid into contact with each other.Type: GrantFiled: May 17, 2004Date of Patent: November 4, 2008Assignee: Mitsui Chemicals, Inc.Inventors: Koichi Shimada, Katsuhiko Koike, Shin Fukuda
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Patent number: 7446147Abstract: A propylene resin composition comprising (A) a crystalline propylene block copolymer in an amount of 89 to 30% by weight, which has a specific content of a 23° C. n-decane-soluble component, said soluble component having a specific intrinsic viscosity [?]a as measured in decalin at 135° C., has a specific melt flow rate (MFR, 230° C., load of 2160 g), and has a specific isotactic pentad fraction of a polypropylene homopolymer portion as measured by 13C-NMR, (B) a crystalline propylene block copolymer in an amount of 5 to 25% by weight, which has a specific content of a 23° C. n-decane-soluble component, said soluble component having a specific intrinsic viscosity [?]b as measured in decalin at 135° C., has a specific melt flow rate (MFR, 230° C., load of 2160 g), and has a specific isotactic pentad fraction of a polypropylene homopolymer portion as measured by 13C-NMR, (C) an elastomeric polymer in an amount of 1 to 20% by weight, which has a melt flow rate (MFR, 230C, load of 2160 g) of 0.Type: GrantFiled: November 11, 2003Date of Patent: November 4, 2008Assignee: Mitsui Chemicals, Inc.Inventors: Masamichi Naito, Ikunori Sakai, Yoshio Sugimoto, Kenta Tsubohara
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Publication number: 20080268221Abstract: The present invention provides a polypropylene resin composition having good moldability and giving a film or a sheet that is excellent in transparency and heat-sealing properties. A polypropylene resin composition of the present invention comprises 1 to 50 wt % of a propylene polymer (A) whose melting point Tm as measured with a differential scanning calorimeter (DSC) is 150° C. or higher, 10 to 90 wt % of a propylene copolymer (B) whose melting point Tm is 100° C. or higher and below 150° C., and 1 to 80 wt % of an olefin copolymer (C) whose melting point is 40° C. or higher and below 100° C., comprising 50 mol % or more of a constitutional unit derived from either one of propylene or 1-butene (a) and 50 mol % or less of a constitutional unit derived from an ?-olefin having 2 to 20 carbon atoms (b) other than the constitutional unit (a) (here, the sum of (a) and (b) is 100 mol %). A film obtained from this resin composition is suitable as a packaging film for food and the like.Type: ApplicationFiled: July 27, 2006Publication date: October 30, 2008Applicant: MITSUI CHEMICALS, INC.Inventors: Norihide Inoue, Takayuki Kuroki
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Publication number: 20080268266Abstract: A polyimide metal laminate including a polyimide resin having a copper foil and a stainless steel foil formed on respective sides of the polyimide resin, or a polyimide resin having two stainless steel foils formed on both sides of the polyimide resin, the polyimide metal laminate having: a peel strength of 1.0 kN/m or more between the polyimide resin and the stainless steel foil or copper foil; a peel strength of 1.0 kN/m or more between the polyimide resin and the stainless steel foil or copper foil after the polyimide metal laminate has been subjected to a heat treatment at 350° C. for 60 minutes; and no expansion or deformation after the polyimide metal laminate has been subjected to the heat treatment at 350° C. for 60 minutes.Type: ApplicationFiled: December 1, 2005Publication date: October 30, 2008Applicant: Mitsui Chemicals, Inc.Inventors: Koji Hirota, Naoki Nakazawa
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Patent number: 7442892Abstract: A latch release operating apparatus includes a switch unit that has a push button on its switch main unit and that is turned ON for releasing a latch state of a door when the push button is pressed down; a base member that holds the switch unit via the switch main unit such that the push button faces the outside; and a waterproof cover member that is attached on a surface of the base member and that covers the push button. A peripheral edge of the cover member is held between the base member and a door outer panel, and the switch unit is mounted on the door outer panel via the base member such that the push button is operable from an outside of the door outer panel via the cover member.Type: GrantFiled: November 30, 2005Date of Patent: October 28, 2008Assignee: Mitsui Mining & Smelting Co., Ltd.Inventor: Katsuyuki Ishiguro
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Patent number: 7441815Abstract: When an inside lock button is operated for locking, an inner wire of a wire cable is drawn into an outer tube of the wire cable so that a lock lever shifts from an unlock state to a lock state, whereas when the inside lock button is operated for unlocking, the inner wire of the wire cable is pushed out of the outer tube of the wire cable so that the lock lever shifts from a lock state to an unlock state.Type: GrantFiled: December 15, 2004Date of Patent: October 28, 2008Assignees: Mitsui Mining & Smelting Co., Ltd., Honda Motor Co., Ltd.Inventor: Masaaki Umino
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Patent number: 7441816Abstract: An automotive childproof safety lock control apparatus including a door latch which can hold a door of a vehicle in a closed position, a childproof safety lock unit which can be displaced to an unlocking state where the release of the door latch from a latching state is enabled by controlling an inner handle provided inside of the vehicle to open the door and a locking state where the release of the door latch from the latching state is disabled, and a drive unit which is linked to the childproof safety lock unit and the door latch so as to displace the childproof safety lock unit from the locking state to the unlocking state and release the door latch from the latching state when activated in one direction and to displace the childproof safety lock unit from the unlocking state to the locking state when activated in the other direction.Type: GrantFiled: June 20, 2006Date of Patent: October 28, 2008Assignee: Mitsui Mining & Smelting Co., Ltd.Inventors: Mitsuhiro Watanabe, Miki Ogino
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Publication number: 20080257588Abstract: A capacitor layer forming material that consists of a dielectric film making use of the sol-gel process excelling in production cost merit, being capable of producing a capacitor circuit of prolonged life having a nonconventional high electric capacity. There is provided capacitor layer forming material (1) having dielectric layer (4) interposed between first conductive layer (2) for formation of an upper electrode and second conductive layer (3) for formation of a lower electrode, characterized in that the dielectric layer (4) consists of an oxide dielectric film produced by the sol-gel process containing an oxide crystal structure of 50 to 300 nm grain diameter (major axis) being a coarse crystal structure having grown in the thickness direction and plane direction of the dielectric layer. Further, there is provided a process for efficiently producing this capacitor layer forming material.Type: ApplicationFiled: January 17, 2006Publication date: October 23, 2008Applicant: MITSUI MINING & SMELTING CO., LTD.Inventors: Naohiko Abe, Akiko Sugioka, Akihiro Kanno
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Publication number: 20080257746Abstract: A method for producing a metal thin body by electroplating, in which the relative integrated intensity of the (111) plane of the metal thin body can be increased to 65% or greater. By carrying out electroplating using an electrolytic solution (plating solution) containing 5% in volume or greater of acetonitrile and water, in particular, using an electrolytic solution (plating solution) containing 10% in volume or greater of acetonitrile and water, the relative integrated intensity of the (111) plane can be increased to 65% or greater.Type: ApplicationFiled: December 8, 2006Publication date: October 23, 2008Applicant: MITSUI MINING & SMELTING CO., LTD.Inventors: Toshiaki Ono, Yasuo Komoda
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Publication number: 20080262210Abstract: Disclosed is a new type of immunostimulating agent including an immunostimulating oligonucleotide complexed with a carrier which is safe and has a high transfection effect. The carrier complexed with the immunostimulating oligonucleotide to form the immunostimulating agent is a polysaccharide having ?-1,3-bonds (preferably ?-1,3-glucan such as schizophyllan). A preferred example of the immunostimulating oligonucleotide is one containing an unmethylated CpG motif. The polysaccharide for use is preferably modified with nucleic acid-binding functional group and/or cell membrane-affinitive functional group.Type: ApplicationFiled: May 13, 2004Publication date: October 23, 2008Applicants: Mitsui Sugar Co., Ltd., Japan Science and Technology AgencyInventors: Masami Mizu, Seiji Shinkai, Kazuo Sakurai, Kazuya Koumoto, Munenori Numata, Takahiro Matsumoto
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Publication number: 20080257480Abstract: The object of the present invention is to provide: a method for manufacturing a multilayer printed wiring board which enables the dielectric layers to have excellent thickness uniformity, the capacitor circuits to have high registration accuracy and the unnecessary dielectric layer is removed as large as possible; and a multilayer printed wiring board with an embedded capacitor circuit manufactured by the method.Type: ApplicationFiled: August 9, 2005Publication date: October 23, 2008Applicant: MITSUI MINING & SMELTING CO., LTD.Inventor: Kensuke Nakamura
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Patent number: 7438331Abstract: An apparatus for opening and closing a door of a vehicle, which allows a door of a vehicle to be slidably moved, includes a door operation lever that is rotated when an inside knob is operated; a door holding unit that is released by rotation of the door operation lever; an operation output unit that is included in the inside knob; and a base plate on which the inside knob is arranged in such a manner that the inside knob is moved to be operated, and on which the door operation lever is arranged in such a manner that the door operation lever partially faces an area in which the operation output unit is moved in response to an operation of the inside knob. The door operation lever is rotated by making the operation output unit abut on the door operation lever when the inside knob is operated.Type: GrantFiled: September 27, 2004Date of Patent: October 21, 2008Assignee: Mitsui Mining & Smelting Co., Ltd.Inventor: Shoji Wakatsuki
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Patent number: RE40571Abstract: The present invention provides a catalyst for polyester production capable of producing a polyester with high catalytic activity, a process for producing a polyester using the catalyst and a polyester produced thereby. The catalyst comprises a solid titanium compound obtained by dehydro-drying a hydrolyzate obtained by hydrolysis of a titanium halide and which has a molar ratio (OH/Ti) of a hydroxyl group (OH) to titanium (Ti) exceeding 0.09 and less than 4. In the process, the polyester is obtained by polycondensing an aromatic dicarboxylic acid, or an ester-forming derivative thereof, and an aliphatic diol, or ester-forming derivative thereof, in the presence of the catalyst. The resulting polyester has excellent transparency and tint, a titanium content of 1 to 100 ppm, a magnesium content of 1 to 200 ppm and a magnesium to titanium weight ratio of not less than 0.01.Type: GrantFiled: September 16, 2004Date of Patent: November 11, 2008Assignee: Mitsui Chemicals, Inc.Inventors: Takeshi Ohmatsuzawa, Fujito Ehara, Hideshi Hori, Kazuo Toyota, Kenzaburou Fukutani, Junichi Imuta, Akiyoshi Shimizu, Takayuki Onogi, Seiji Noda, Masayuki Sakai, Shoji Hiraoka, Koji Nakamachi, Michio Tsugawa, Satoru Miyazoe