Patents by Inventor Naoru Hamaguchi
Naoru Hamaguchi 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: 9101660Abstract: The present invention provides a solid preparation containing an insulin sensitizer and an active ingredient (except insulin sensitizers), which is useful as a therapeutic drug for diabetes and the like, and which is superior in preparation characteristics such as content uniformity and dissolution property of the insulin sensitizer and the active ingredient (except insulin sensitizers), preparation hardness and the like.Type: GrantFiled: October 6, 2003Date of Patent: August 11, 2015Assignee: Takeda Pharmaceutical CompanyInventors: Masahiko Koike, Hiroyoshi Koyama, Naoru Hamaguchi
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Patent number: 8263121Abstract: The present invention provides a solid preparation containing an insulin sensitizer and an active ingredient (except insulin sensitizers), which shows in vivo dissolution behavior of an insulin sensitizer, which is similar to the dissolution behavior of an insulin sensitizer from “a solid preparation containing an insulin sensitizer alone as an active ingredient”. The present invention provides a solid preparation containing (1) a layer containing an insulin sensitizer, and (2) a layer containing (a) an active ingredient (except insulin sensitizers), (b) microcrystalline cellulose having a mean particle size of 5-25 ?m, (c) microcrystalline cellulose having a mean particle size of 30-100 ?m and (d) polyvinylpyrrolidone K-90.Type: GrantFiled: April 13, 2005Date of Patent: September 11, 2012Assignee: Takeda Pharmaceutical Company LimitedInventors: Masahiko Koike, Hiroyoshi Koyama, Naoru Hamaguchi
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Patent number: 7976853Abstract: The present invention provides a production method of a preparation coated with pioglitazone hydrochloride, which is useful as a therapeutic agent for diabetes and the like, and which is superior in the characteristics of the preparation such as dissolution property of pioglitazone hydrochloride.Type: GrantFiled: January 28, 2004Date of Patent: July 12, 2011Assignee: Takeda Pharmaceutical Company LimitedInventors: Kazuhiro Ohkouchi, Masahiko Koike, Hiroyoshi Koyama, Naoru Hamaguchi
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Patent number: 7700128Abstract: A solid preparation useful as a diabetes-treating agent or the like and excellent in the dissolution properties of an insulin sensitizer and an insulin secretagogue, which comprises an insulin sensitizer, an insulin secretagogue and a polyoxyethylene sorbitan fatty acid ester is provided.Type: GrantFiled: October 21, 2004Date of Patent: April 20, 2010Assignee: Takeda Pharmaceutical Company LimitedInventors: Kazuhiro Doken, Tetsuya Kawano, Hiroyoshi Koyama, Naoru Hamaguchi
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Publication number: 20070082047Abstract: A chewable tablet comprising a group which contains an acid-labile active ingredient and at least one basic substance selected from alkaline earth metal carbonate, metal oxide and metal hydroxide, and a group which does not contain an acid-labile active ingredient and contains at least one ingredient selected from alkaline earth metal carbonate, metal oxide and metal hydroxide, wherein said chewable tablet is capable of rapidly neutralizing gastric acid and is preferably not enteric-coated, is provided.Type: ApplicationFiled: November 4, 2004Publication date: April 12, 2007Inventors: Masae Sugaya, Hiroyoshi Koyama, Naoru Hamaguchi
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Publication number: 20060286168Abstract: The present invention provides a production method of a preparation coated with pioglitazone hydrochloride, which is useful as a therapeutic agent for diabetes and the like and superior in the characteristics of the preparation such as dissolution property of pioglitazone hydrochloride and the like.Type: ApplicationFiled: July 10, 2003Publication date: December 21, 2006Inventors: Masahiko Koike, Hiroyoshi Koyama, Naoru Hamaguchi
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Publication number: 20060280794Abstract: A solid preparation comprising an insulin sensitizer and an HMG-CoA reductase inhibitor without deteriorating the stabilities of these drugs, wherein said preparation comprises particles containing an insulin sensitizer and particles containing an HMG-CoA reductase inhibitor.Type: ApplicationFiled: June 3, 2004Publication date: December 14, 2006Inventors: Naoru Hamaguchi, Hiroyoshi Koyama, Masafumi Misaki
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Publication number: 20060223870Abstract: A solid preparation useful as a diabetes-treating agent or the like and excellent in the dissolution properties of an insulin sensitizer and an insulin secretagogue, which comprises an insulin sensitizer, an insulin secretagogue and a polyoxyethylene sorbitan fatty acid ester is provided.Type: ApplicationFiled: October 21, 2004Publication date: October 5, 2006Inventors: Kazuhiro Doken, Tetsuya Kawano, Hiroyoshi Koyama, Naoru Hamaguchi
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Publication number: 20060141128Abstract: The present invention provides a production method of a preparation coated with pioglitazone hydrochloride, which is useful as a therapeutic agent for diabetes and the like, and which is superior in the characteristics of the preparation such as dissolution property of pioglitazone hydrochloride.Type: ApplicationFiled: January 28, 2004Publication date: June 29, 2006Inventors: Kazuhiro Ohkouchi, Masahiko Koike, Hiroyoshi Koyama, Naoru Hamaguchi
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Publication number: 20050287207Abstract: The present invention provides a solid preparation containing an insulin sensitizer and an active ingredient (except insulin sensitizers), which is useful as a therapeutic drug for diabetes and the like, and which is superior in preparation characteristics such as content uniformity and dissolution property of the insulin sensitizer and the active ingredient (except insulin sensitizers), preparation hardness and the like.Type: ApplicationFiled: October 6, 2003Publication date: December 29, 2005Inventors: Masahiko Koike, Hiroyoshi Koyama, Naoru Hamaguchi
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Patent number: 6568533Abstract: An object (7) to be packed is sandwiched between sheet-like package materials (2,2). A weakly-sealed portion (4) is formed so as to surround the packed object (7) while leaving a grip flap (3) for each of the package materials (2,2), thereby forming a bag portion (5) which accommodates the packed object (7) within the weakly-sealed portion (4). The grip flap (3) has a length (L) set to about 20 mm for easy handling. The weakly-sealed portion (4) can be peeled by grasping and pulling the grip flap (3) to take out the packed object (7) within the bag portion (5).Type: GrantFiled: December 15, 2000Date of Patent: May 27, 2003Assignee: Takeda Chemical Industries, Ltd.Inventors: Nobuyoshi Tanaka, Naoru Hamaguchi, Shuji Morimoto
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Patent number: 5888531Abstract: A freeze-dried preparation comprising a bioactive substance having an optionally substituted amidino group and a disaccharide which stabilizes the bioactive substance; and a process for making the preparation are described.Type: GrantFiled: July 1, 1996Date of Patent: March 30, 1999Assignee: Takeda Chemical Industries, Ltd.Inventors: Motoya Ohshika, Naoru Hamaguchi, Shigehiro Higuchi
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Patent number: 5643564Abstract: Disclosed is a sugar-modified cytokine which ensures migration of almost all of the dose of cytokine to the liver rapidly after administration to the live body and which can be advantageously used to enhance the effect of liver disease therapy and mitigate side effects.Type: GrantFiled: May 31, 1995Date of Patent: July 1, 1997Assignee: Takeda Chemical Industries, Ltd.Inventors: Naoru Hamaguchi, Jun Sato, Kazuhiro Doken
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Patent number: 5536735Abstract: This invention comprises a pharmaceutical composition comprising a benzimidazole compound having antiulcer activity and a water-soluble carboxylic acid amide. According to this invention, a water-insoluble benzimidazole compound having antiulcer activity can be solubilized and a stable pharmaceutical composition can be provided. The solid pharmaceutical composition of this invention can be extemporaneously dissolved in sterile distilled water or an infusion (e.g. physiological saline, glucose infusion, etc.) and put to use as an injection with great convenience.Type: GrantFiled: October 14, 1994Date of Patent: July 16, 1996Assignee: Takeda Chemical Industries, Ltd.Inventors: Nobuyuki Takechi, Akihiro Nagai, Naoru Hamaguchi
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Patent number: 5080904Abstract: The liposome compositions entrapping a drug are prepared by constituting the liposomal membrane with a saturated phospholipid and a glycolipid having sulfo group. Thus obtained compositions circulate stably in blood for a long time after intravenous administration.Type: GrantFiled: May 10, 1989Date of Patent: January 14, 1992Assignee: Takeda Chemical Industries, Ltd.Inventors: Katsumi Iga, Naoru Hamaguchi, Yasuaki Ogawa
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Patent number: 5019394Abstract: The liposome compositions entrapping a drug are prepared by constituting the liposomal membrane with saturated phospholipids and anionic surfactants of high Krafft point at concentrations above their critical micelle concentrations. Thus obtained compositions circulate stably in blood for a long time after intravenous administration.Type: GrantFiled: February 24, 1988Date of Patent: May 28, 1991Assignee: Takeda Chemical Industries, Ltd.Inventors: Naoru Hamaguchi, Katsumi Iga, Yasuaki Ogawa
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Patent number: 5000959Abstract: The liposome compositions entrapping a drug are prepared by constituting the liposomal membrane with a saturated phospholipid and a glycolipid having sialic acid group. Thus obtained compositions circulate stably in blood for a long time after intravenous administration.Type: GrantFiled: May 10, 1989Date of Patent: March 19, 1991Assignee: Takeda Chemical Industries, Ltd.Inventors: Katsumi Iga, Naoru Hamaguchi, Yasuaki Ogawa
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Patent number: 4877561Abstract: Liposomes with an increased drug trap can be prepared by adding a readily volatile organic solvent to a drug-containing liquid with liposomes dispersed therein to cause gel formation and then removing said organic solvent by evaporation.Type: GrantFiled: April 2, 1987Date of Patent: October 31, 1989Assignee: Takeda Chemical Industries, Ltd.Inventors: Katsumi Iga, Naoru Hamaguchi, Yasuaki Ogawa
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Patent number: 4844904Abstract: Liposome compositions in which a drug is retained in stable condition are prepared by dispersing liposomes obtained by removal of a solvent from a drug-containing w/o emulsion in an aqueous solution having an osmotic pressure higher by at least 20 percent than the osmotic pressure of a solution used for entrapping the drug in said liposomes. This composition is conducive to a sustained therapeutic efficacy or a better delivery of the drug to a target organ.Type: GrantFiled: November 21, 1986Date of Patent: July 4, 1989Assignee: Takeda Chemical Industries, Ltd.Inventors: Naoru Hamaguchi, Katsumi Iga, Yasuaki Ogawa
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Patent number: 4497809Abstract: Cephalosporin derivatives of the formula: ##STR1## wherein R.sub.1 is methyl or ethyl and R.sub.2 is a straight-chain or branched alkyl group of 5 to 7 carbon atoms, and their pharmaceutically acceptable salts, which are effective as orally administrable antibiotic agents against both gram-positive- and negative-bacteria, and the production and compositions thereof, are proposed.Type: GrantFiled: April 20, 1983Date of Patent: February 5, 1985Assignee: Takeda Chemical Industries, Ltd.Inventors: Yoshinobu Yoshimura, Naoru Hamaguchi, Takatsuka Yashiki