Patents by Inventor Takao Nomura
Takao Nomura has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5484824Abstract: A thermoplastic resin composition which contains a resin composition containing a crystalline polypropylene component, an ethylene-butene-1 copolymer rubber and an ethylene-propylene copolymer rubber; a modified polypropylene; a saturated polyester resin; and an epoxy group-containing copolymer; and optionally talc exhibits high low-temperature impact strength, stiffness and Rockwell hardness and a small coefficient of linear expansion, which composition gives an injection-molded article suitably used for a bumper for automobile.Type: GrantFiled: May 23, 1995Date of Patent: January 16, 1996Assignees: Sumitomo Chemical Company, Limited, Toyota Jidosha Kabushiki KaishaInventors: Hiroomi Abe, Takeshi Fujii, Masashi Yamamoto, Takeyoshi Nishio, Takao Nomura
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Patent number: 5464892Abstract: This invention relates to vinyl chloride resin composition suitable for automobile interior skin material of which the die pollution is low, die releasing capacity is light and amine resistance is high.This invention provides the vinyl chloride resin composition for powder material forming characterized by the components of the mixture consisting of: 100 parts for weight of vinyl chloride resin, 0.01 to 3 parts for weight of the thermal stabilizer indicated by general formula (RCO0).sub.2 M(in the formula, R: alkyl group having 10 to 20 carbons, M: lead, zinc, magnesium, calcium, cadmium, strontium or barium), 0.01 to 5 parts for weight of hydroxy stearic acid and/or hydroxy stearic acid dister polymer, and plasticizer.Type: GrantFiled: January 19, 1993Date of Patent: November 7, 1995Assignees: Nippon Zeon Co., Ltd., Zeon Kasei Co., Ltd., Toyota Jidosha KabushikaishaInventors: Seiko Yada, Yukihiro Ogawa, Takao Nomura, Yoshiro Umemoto
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Patent number: 5461105Abstract: A resin composition having excellent paint coatability containing (a) 50-80 weight % of a multi-stage polymerized propylene-ethylene block copolymer consisting essentially of (i) a propylene homopolymer portion, (ii) a propylene-ethylene random copolymer portion, and (iii) an ethylene homopolymer portion, (b) 20-40 weight % of an ethylene-.alpha.-olefin copolymer elastomer, and (c) 20 weight % or less of an inorganic filler, components in the components (a) and (b), which are soluble in p-xylene at a room temperature, having a number-average molecular weight of 4.times.10.sup.4 or more and a weight-average molecular weight of 20.times.10.sup.4 or more.Type: GrantFiled: April 3, 1995Date of Patent: October 24, 1995Assignees: Tonen Chemical Corporation, Toyota Jidosha Kabushiki KaishaInventors: Yoshiharu Saito, Masao Sakaizawa, Kunio Iwanami, Kitsusho Kitano, Michihisa Tasaka, Kenji Kawazu, Shizuo Miyazaki, Takao Nomura, Takeyoshi Nishio, Hisayuki Iwai
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Patent number: 5438091Abstract: A resin composition having excellent paint coatability containing (a) 50-80 weight % of a multi-stage polymerized propylene-ethylene block copolymer consisting essentially of (i) a propylene homopolymer portion, (ii) a propylene-ethylene random copolymer portion, and (iii) an ethylene homopolymer portion, (b) 20-40 weight % of an ethylene-.alpha.-olefin copolymer elastomer, and (c) 20 weight % or less of an inorganic filler, components in the components (a) and (b), which are soluble in p-xylene at a room temperature, having a number-average molecular weight of 4.times.10.sup.4 or more and a weight-average molecular weight of 20.times.10.sup.4 or more.Type: GrantFiled: October 25, 1994Date of Patent: August 1, 1995Assignees: Tonen Chemical Corporation, Toyota Jidosha Kabushiki KaishaInventors: Yoshiharu Saito, Masao Sakaizawa, Kunio Iwanami, Kitsusho Kitano, Michihisa Tasaka, Kenji Kawazu, Shizuo Miyazaki, Takao Nomura, Takeyoshi Nishio, Hisayuki Iwai
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Patent number: 5374677Abstract: A thermoplastic polymer composition comprising: (i) 100 parts by weight of a thermoplastic polymer component which comprises an ethylene-propylene rubber, an ethylene copolymer and a propylene polymer (including an ethylene-propylene block copolymer), and (ii) 0 to 7 parts by weight of talc, the thermoplastic polymer component being composed of, according to fractionation using o-dichlorobenzene as a solvent, component (A) which is a component soluble in the solvent at 40.degree. C., component (B) which is a component insoluble in the solvent at 40.degree. C. but soluble at 110.degree. C., and component (C) which is a component insoluble in the solvent even at 110.degree. C. in such a proportion that the total amount of the components (A) and (B) is from 50 to 70 parts by weight, the weight ratio of the component (A) to the component (B) being from 0.5 to 1.5, and the amount of the component (C) is from 50 to 30 parts by weight.Type: GrantFiled: June 19, 1992Date of Patent: December 20, 1994Assignees: Mitsubishi Petrochemical Company Limited, Toyota Jidosha Kabushiki KaishaInventors: Takeyoshi Nishio, Takao Nomura, Nobuya Kawamura, Hiroki Sato, Akihiko Uchikawa, Ikuo Tsutsumi, Yukitaka Goto
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Patent number: 5329981Abstract: A method of producing a metal mold is disclosed. A heat resistant sheet is forcedly brought into close contact with a product configuration surface of a matrix such as a wooden pattern, a resin model, or the like by making use of negative pressure. The matrix is brought into contact with a melt of a low melting-point alloy while that state of close contact is being maintained and the melt is allowed to cool as it is, thereby casting one part of the mold which makes up a pair. The matrix is then removed, and by using the one part of the mold thus cast as a new matrix, this new matrix is brought into contact with the melt of a low melting-point alloy via the heat resistant rubber sheet and is allowed to cool as it is, thereby casting a counterpart of the mold that makes up the pair.Type: GrantFiled: October 7, 1993Date of Patent: July 19, 1994Assignee: Toyota Jidosha Kabushiki KaishaInventors: Masahito Ito, Miyuki Koujiya, Hiroshi Sarai, Seiya Nakao, Takao Nomura, Satoru Kitou, Fuminori Matsuda, Susumu Yamada, Kesato Kuroiwa, Hiroshi Mihara
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Patent number: 5308908Abstract: A polypropylene resin composition comprising:(A) 45 to 70% by weight of an ethylene-propylene block copolymer synthesized under the process comprising the steps of;(a) polymerizing propylene with a Ziegler-Natta catalyst to obtain a highly crystalline polypropylene that contain not less than 97% by weight of a fraction insoluble in boiling n-heptane, and(b) copolymerizing ethylene with the polypropylene (a), and which(a) contains 0.5 to 10% by weight of ethylene,(b) contains 5 to 20% by weight of a fraction being soluble in p-xylene at room temperature and having an intrinsic viscosity value of not less than 2 (measured in decalin at 135.degree. C.),(c) has a melt-flow index value of 30 to 100 g/10 min., and,(d) has a value of flexural modulus of not less than 18,000 kg/cm.sup.2,(B) 10 to 20% by weight of an amorphous ethylene-propylene copolymer having(a) an ethylene content of 70 to 90% by weight,(b) a Mooney viscosity value (ML.sub.1+4 at 100.degree. C.) of 5 to 70,(C) 5 to 15% by weight of an ethylene-.Type: GrantFiled: August 28, 1992Date of Patent: May 3, 1994Assignee: Ube Industries, Ltd.Inventors: Osamu Fukui, Kouhei Ueno, Yoshifumi Nakano, Ikunori Sakai, Takao Nomura, Takeyoshi Nishio, Hisayuki Iwai
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Patent number: 5302653Abstract: A thermoplastic polymer composition comprising: (i) 100 parts by weight of a thermoplastic polymer component which comprises an ethylene-propylene rubber, an ethylene copolymer and a propylene polymer (including an ethylene-propylene block copolymer), and (ii) 7 to 25 parts by weight of talc, the thermoplastic polymer component being composed of, according to fractionation using o-dichlorobenzene as a solvent, component (A) which is a component soluble in the solvent at 40.degree. C., component (B) which is a component insoluble in the solvent at 40.degree. C. but soluble at 110.degree. C., and component (C) which is a component insoluble in the solvent even at 110.degree. C. in such a proportion that the total amount of the components (A) and (B) is from 50 to 70 parts by weight, the weight ratio of the component (A) to the component (B) being from 0.5 to 1.5, and the amount of the component (C) is from 50 to 30 parts by weight; the composition having a flexural modulus of 10,000 to 20,000 kg/cm.sup.2.Type: GrantFiled: January 24, 1992Date of Patent: April 12, 1994Assignees: Mitsubishi Petrochemical Company Limited, Toyota Jidosha Kabushiki KaishaInventors: Takeyoshi Nishio, Nobuya Kawamura, Takao Nomura, Hiroki Sato, Akihiko Uchikawa, Ikuo Tsutsumi, Yukitaka Goto
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Patent number: 5206284Abstract: A polypropylene thermoplastic resin composition comprising (a) a modified crystalline polypropylene of a crystalline polypropylene comprising said modified crystalline polypropylene and (b) a modified polyamide obtained by partially or wholly grafting a polyamide with a clay mineral. A polypropylene thermoplastic resin composition comprising, in addition to the above polypropylene thermoplastic resin composition comprising the components (a) and (b), one or any combination of the following components (c), (d) and (e): (c) an ethylene-.alpha.-olefin copolymer rubber or a modified ethylene-.alpha.-olefin copolymer rubber, (d) a block copolymer between a monovinyl-substituted aromatic hydrocarbon and a conjugated diene, a hydrogenation product of said block copolymer, or a modification product of said block copolymer, and (e) an inorganic filler.Type: GrantFiled: July 11, 1991Date of Patent: April 27, 1993Assignees: Ube Industries Ltd., Toyota Jidosha Kabushiki KaishaInventors: Osamu Fukui, Kiyoshi Tsutsui, Tomohiko Akagawa, Ikunori Sakai, Takao Nomura, Takeyoshi Nishio, Toshio Yokoi, Nobuya Kawamura
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Patent number: 5155612Abstract: A transmission type or projection type liquid crystal display device includes a light source and an active matrix type liquid crystal display panel provided with a thin film transistor arrangement. A shielding film is included for cutting off light incident upon the thin film transistor arrangement from the light source. Electrode terminals of the liquid crystal display panel and outputs of driving LSI circuits are connected to each other by flexible substrates with the connected portions between the electrode terminals of the liquid crystal display panel and the flexible substrates protected by a connected portion protecting resin. The liquid crystal display device is further provided with a light shielding device for covering at least the protecting resin portion of the liquid crystal display panel, so as to prevent light of the light source from entering the region of the connecting portion protecting resin.Type: GrantFiled: June 8, 1990Date of Patent: October 13, 1992Assignee: Sharp Kabushiki KaishaInventors: Masahiro Adachi, Nobuyoshi Nagashima, Eiichi Takahashi, Yutaka Takafuji, Takao Nomura, Shuhei Yasuda
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Patent number: 5106909Abstract: A modified polyolefin-polyester graft copolymer includes (a) 10-90 parts by weight of a polyester having an intrinsic viscosity [.eta.] of 0.30-1.20 and an end carboxyl group content of 15-200 milliequivalent/kg, and (b) 90-10 parts by weight of a modified polyolefin having 0.2-5 mol % of an epoxy group or carboxyl group content and a weight-average molecular weight of 8,000-140,000.A thermoplastic resin composition includes (a) 5-95 weight % of an aromatic polycarbonate, (b) 95-5 weight % of a polyolefin, and (c) 1-30 parts by weight, per 100 parts by weight of (a)+(b), of the graft copolymer.Type: GrantFiled: October 13, 1989Date of Patent: April 21, 1992Assignee: Tonen Sekiyukagaku Kabushiki KaishaInventors: Tadahi Sezume, Shigeru Sato, Masahiro Oosawa, Yasuhiko Haraguchi, Takashi Mikami, Takeyoshi Nishio, Toshio Yokoi, Takao Nomura, Nobuya Kawamura
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Patent number: 5100926Abstract: Disclosed herein is a process for producing polyurethane moldings having good physical properties and good receptivity of electrostatic coating, said process comprising reacting a polyoxyethylene chain-containing polyether polyol having 2-4 hydroxyl groups and a hydroxyl equivalent higher than 750 as the high-molecular weight polyol, diaminotoluene and a low-molecular weight polyol having a hydroxyl equivalent of 30-100 as the low-molecular weight, active hydrogen-containing compound, with organic polyisocyanates in specific equivalent ratios respectively. The process may advantageously applied to injection reaction molding.Type: GrantFiled: July 17, 1989Date of Patent: March 31, 1992Assignees: Toyota Jidosha Kabushiki Kaisha, Sanyo Chemical Industries, Inc.Inventors: Kanemitu Kondo, Takao Nomura, Junzo Ukai, Takuji Isaka, Isao Ishikawa, Kouzaburo Nagata
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Patent number: 5091462Abstract: A polypropylene thermoplastic resin composition comprising (a) a modified crystalline polypropylene of a crystalline polypropylene comprising said modified crystalline polypropylene and (b) a modified polyamide obtained by partially or wholly grafting a polyamide with a clay mineral. A polypropylene thermoplastic resin composition comprising, in addition to the above polypropylene thermoplastic resin composition comprising the components (a) and (b), one or any combination of the following components (c), (d) and (e): (c) an ethylene-.alpha.-olefin copolymer rubber or a modified ethylene-.alpha.-olefin copolymer rubber, (d) a block copolymer between a monovinyl-substituted aromatic hydrocarbon and a conjugated diene, a hydrogenation product of said block copolymer, or a modification product of said block copolymer, and (e) an inorganic filler.Type: GrantFiled: March 14, 1990Date of Patent: February 25, 1992Assignees: Ube Industries Limited, Toyota Jidosha Kabushiki KaishaInventors: Osamu Fukui, Kiyoshi Tsutsui, Tomohiko Akagawa, Ikunori Sakai, Takao Nomura, Takeyoshi Nishio, Toshio Yokoi, Nobuya Kawamura
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Patent number: 5073447Abstract: The polypropylene-based composite resin composition of the invention, which can be molded into a shaped article having excellent surface hardness and impact strength at low temperatures and usable as a shell plate member of automobiles, comprises (a) a polypropylene resin as the matrix phase, (b) particles of rubber-reinforced styrene-based resin as the dispersed phase having a specified area-average particle diameter, of which the rubber particles having a specified area-average particle diameter forms a "salami" structure as dispersed in the styrene-based resin, and (c) a layer of a compatibility improver, such as a styrene-based thermoplastic elastomer, on the surface of the particles of the rubber-reinforced styrene-based resin in a specified thickness.Type: GrantFiled: December 8, 1989Date of Patent: December 17, 1991Assignees: Idemitsu Petrochemical Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Hirohide Mizuno, Shinichi Koide, Manabu Nomura, Nobuya Kawamura, Takeyoshi Nishio, Takao Nomura
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Patent number: 5021504Abstract: A thermoplastic resin composition having well-balanced properties which comprises 95-5 weight % of polycarbonate, 5-95 weight % of polyolefin and a particular combination of additional components selected from a styrene-ethylene.propylene copolymer, a styrene-ethylene. butyrene-styrene block copolymer, an AES resin, a styrene-olefin block copolymer, an unsaturated carboxylic acid-modified polyolefin, polybutylene terephthalate, a styrene-maleic anhydride copolymer, an oxazoline ring-containing styrene copolymer a saponified olefin-vinyl ester copolymer and an epoxy group-containing styrene copolymer.Type: GrantFiled: September 19, 1988Date of Patent: June 4, 1991Assignees: Tonen Sekiyukagaku Kabushiki Kaisha, Toyota Jidosha Kabushiki KaishaInventors: Yuuji Fujita, Tadashi Sezume, Kitsusho Kitano, Kiyotada Narukawa, Takashi Mikami, Tetsuya Kawamura, Shigeru Sato, Takeyoshi Nishio, Toshio Yokoi, Takao Nomura
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Patent number: 4988764Abstract: The polypropylene resin composition of the present invention can be obtained by melt mixing:(a) a modified polypropylene obtained by grafting a crystalline propylene-ethylene block copolymer with an unsaturated carboxylic acid, or a crystalline polypropylene containing the modified polypropylene,(b) a polyamide, and(c) a modified ethylene-.alpha.-olefin copolymer rubber obtained by grafting an ethylene-.alpha.olefin copolymer rubber with an unsaturated carboxylic acid. This composition is superior in low temperature impact resistance, rigidity, heat resistance and oil resistance.Type: GrantFiled: March 27, 1990Date of Patent: January 29, 1991Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takeyoshi Nishio, Toshio Yokoi, Takao Nomura, Kouhei Ueno, Tomohiko Akagawa, Ikunori Sakai, Yasufumi Takasaki
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Patent number: 4981896Abstract: There is disclosed a thermoplastic resin composition comprising a blend of100 parts by weight of a resin composition composed of 1 to 99% by weight of a polypropylene type resin (C) selected from the group consisting of a modified polypropylene (A) obtained by graft copolymerizing an unsaturated carboxylic acid or a derivative thereof and an unsaturated aromatic monomer onto polypropylene, and a composition composed of the modified polypropylene (A) and a polypropylene (B), and 99 to 1% by weight of at least one saturated polyester resin (D),0.1 to 300 parts by weight of an epoxy group containing copolymer (E),0.Type: GrantFiled: March 22, 1989Date of Patent: January 1, 1991Assignees: Sumitomo Chemical Company, Toyota Jidosha Kabushiki KaishaInventors: Takayuki Okada, Tatsuyuki Mitsuno, Takeshi Fujii, Kentaro Yamaguchi, Mitsuyuki Okada, Mitsuji Tsuji, Takeyoshi Nishio, Toshio Yokoi, Takao Nomura
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Patent number: 4690764Abstract: This invention provides an aerator comprising a jet stream generator for ejecting a gas and a liquid in a mixed state from a nozzle, and a tubular flow straightener for mixing the bubble-containing stream ejected from the nozzle with ambient water and discharging the resulting mixture from the discharge orifice thereof, characterized in that the flow straightener has a tubular form whose internal diameter is reduced from the inlet toward the discharge orifice through at least a part of its length.This aerator can produce a stream containing minute gas bubbles, even when a gas is supplied thereto in such a large amount as to give a gas-to-liquid volume ratio of 3/1.Type: GrantFiled: October 8, 1986Date of Patent: September 1, 1987Assignee: Mitsubishi Rayon Engineering Co., Ltd.Inventors: Munehiro Okumura, Takao Nomura, Tadashi Matsuda, Shojiro Kido, Shinichi Ishii, Hideki Hattori
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Patent number: 4574201Abstract: A radio frequency switching circuit device wherein an LC circuit is inserted between two terminals, while a diode is shunted, and wherein the diode is controlled into its nonconductive state and its conductive state by a D.C. voltage, whereby the path between the two terminals is switched into a conductive state and a nonconductive state with respect to a radio frequency signal; characterized in that a transistor which turns "on" upon the application of the D.C. voltage is inserted in series with a D.C. voltage terminal for applying the D.C. voltage to the diode.Type: GrantFiled: September 24, 1982Date of Patent: March 4, 1986Assignee: Alps Electric Co., Ltd.Inventors: Toru Ohyama, Takao Nomura
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Patent number: 4305981Abstract: Elastic metallized decorative moldings are disclosed composed of a modified polyurethane resin as a substrate coated on the surface thereof with a metallized layer, the polyurethane resin comprising 50-95 parts by weight of a thermoplastic polyurethane resin incorporated with 5-50 parts by weight of an acrylonitrile-butadiene-styrene resin comprised of at least 75% by weight of an acrylonitrile-styrene component and not more than 25% by weight of a butadiene component. Such elastic metallized decorative moldings are useful as impact-absorbing materials with beautiful appearance for various structures, especially as bumper moldings for motor vehicles.Type: GrantFiled: March 12, 1980Date of Patent: December 15, 1981Assignee: Toyoda Synthetics Co., Ltd.Inventors: Ryoichi Muroi, Toshiyasu Ito, Takao Nomura, Tsugumi Sanmiya, Yasuhiro Mishima, Yoshiro Umemoto