Patents by Inventor Toshio Yokoi
Toshio Yokoi 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: 6838580Abstract: 1. A peptide derivative represented by the following formula (1) or a salt thereof; wherein R1 is hydrogen atom or methyl group, R2 is hydrogen atom or hydroxy group and n is an integer of 1-8, provided that R1 is hydrogen atom when R2 is hydrogen atom, which has specific and high binding affinity with the ?-opioid receptor.Type: GrantFiled: January 29, 2002Date of Patent: January 4, 2005Assignee: Teikoku Seiyaku Co., Ltd.Inventors: Yoshio Okada, Yuko Tsuda, Toshio Yokoi, Sharon D. Bryant, Lawrence H. Lazarus
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Publication number: 20030171302Abstract: 1.Type: ApplicationFiled: January 29, 2002Publication date: September 11, 2003Inventors: Yoshio Okada, Yuko Tsuda, Toshio Yokoi, Sharon D. Bryant, Lawrence H. Lazarus
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Patent number: 6479549Abstract: A novel carnosic acid derivative for promoting the synthesis of nerve growth factor (NGF), a composition comprising the carnosic acid derivative as an effective ingredient, as well as, a method of promoting the synthesis of NGF comprising administering an effective amount of the carnosic acid derivative as an effective ingredient to a subject requiring such promotion. The carnosic acid derivative, composition and method according to the present invention can safely and efficiently promote the production of NGF in the living body, without being accompanied by a side effect such as a loss of a quantitative balance of hormones in the living body.Type: GrantFiled: February 28, 2001Date of Patent: November 12, 2002Assignee: Nagase & Company, Ltd.Inventors: Kunio Kosaka, Toshitsugu Miyazaki, Toshio Yokoi
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Publication number: 20010034370Abstract: A novel carnosic acid derivative for promoting the synthesis of nerve growth factor (NGF), a composition comprising the carnosic acid derivative as an effective ingredient, as well as, a method of promoting the synthesis of NGF comprising administering an effective amount of the carnosic acid derivative as an effective ingredient to a subject requiring such promotion. The carnosic acid derivative, composition and method according to the present invention can safely and efficiently promote the production of NGF in the living body, without being accompanied by a side effect such as a loss of a quantitative balance of hormones in the living body.Type: ApplicationFiled: February 28, 2001Publication date: October 25, 2001Inventors: Kunio Kosaka, Toshitsugu Miyazaki, Toshio Yokoi
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Patent number: 5476624Abstract: A process for reclaiming waste plastics having a paint film which includes subjecting the paint film to a hydrolysis treatment by immersing the waste plastics having a urethane paint film or an amino resin paint film in a treating liquid, or contacting the waste plastics with the vapor of a treating liquid, to decompose the paint into lower molecular weight compounds. The resulting waste plastics are then heated and kneaded to disperse the products of the hydrolysis in the waste plastics, and there is recovered a reclaimed waste plastics product having good mechanical properties.Type: GrantFiled: November 28, 1994Date of Patent: December 19, 1995Assignees: Kabushiki Kaisha Toyota Chuo Kenkyusho, Toyota-Jidosha Kabushiki KaishaInventors: Norio Sato, Shigetoshi Sugiyama, Takashi Ohta, Mitsumasa Matsushita, Shoichi Suzuki, Takeyoshi Nishio, Toshio Yokoi
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Patent number: 5384172Abstract: A multi-layer plastic fuel tank is constituted by at least one high-density polyethylene layer, at least one polyamide layer, and at least one modified high-density polyethylene layer made of high-density polyethylene modified with an unsaturated carboxylic acid or its derivatives, which is interposed between each high-density polyethylene layer and each polyamide layer for bonding them, the polyamide layer being made of a polyamide copolymer comprising 90-60 weight % of polyamide 6 and 10-40 weight % of polyamide 66.Type: GrantFiled: August 23, 1993Date of Patent: January 24, 1995Assignees: Tonen Chemical Corporation, Toyota Jidosha Kabushiki KaishaInventors: Yutaka Takado, Toshikazu Nakasato, Tetsuro Nogata, Eiji Tezuka, Toshio Yokoi
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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: 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: 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: 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