Patents by Inventor Katsuhiro Inada
Katsuhiro Inada 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: 7047708Abstract: A packaged ocular irrigating solution bag, which comprises a gas-permeable plastic multiple compartment bag and a gas-impermeable plastic packaging member for packaging the bag and in which an oxiglutatione-containing solution or solid preparation is enclosed in one compartment and a bicarbonate ion solution is enclosed in another compartment and the space between the bag and the packaging member has a carbon dioxide gas atmosphere.Type: GrantFiled: December 16, 2003Date of Patent: May 23, 2006Assignees: Otsuka Pharmaceutical Factory, Inc., Senju Pharmaceutical Co., Ltd.Inventors: Katsuhiro Inada, Mitsuhira Nishio, Yoshiyuki Kimura, Junji Kaga, Koichi Muraoka, Nobuaki Sumiyoshi, Seiichiro Iguchi, Hiroaki Yamamoto
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Patent number: 6764481Abstract: A packaged ocular irrigating solution bag, which comprises a gas-permeable plastic multiple compartment bag and a gas-impermeable plastic packaging member for packaging the bag and in which an oxiglutatione-containing solution or solid preparation is enclosed in one compartment and a bicarbonate ion solution is enclosed in another compartment and the space between the bag and the packaging member has a carbon dioxide gas atmosphere.Type: GrantFiled: April 27, 2000Date of Patent: July 20, 2004Assignees: Otsuka Pharmaceutical Factory, Inc., Senju Pharmaceutical Co., Ltd.Inventors: Katsuhiro Inada, Mitsuhira Nishio, Yoshiyuki Kimura, Junji Kaga, Koichi Muraoka, Nobuaki Sumiyoshi, Seiichiro Iguchi, Hiroaki Yamamoto
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Publication number: 20040123563Abstract: A packaged ocular irrigating solution bag, which comprises a gas-permeable plastic multiple compartment bag and a gas-impermeable plastic packaging member for packaging the bag and in which an oxiglutatione-containing solution or solid preparation is enclosed in one compartment and a bicarbonate ion solution is enclosed in another compartment and the space between the bag and the packaging member has a carbon dioxide gas atmosphere.Type: ApplicationFiled: December 16, 2003Publication date: July 1, 2004Applicants: OTSUKA PHARMACEUTICAL FACTORY, INC., SENJU PHARMACEUTICAL CO., LTD.Inventors: Katsuhiro Inada, Mitsuhira Nishio, Yoshiyuki Kimura, Junji Kaga, Koichi Muraoka, Nobuaki Sumiyoshi, Seiichiro Iguchi, Hiroaki Yamamoto
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Patent number: 6683070Abstract: The aqueous suspension can be prepared by incorporating, in an aqueous suspension of a hardly soluble drug, a water-soluble polymer within the concentration range from the concentration at which the surface tension of the aqueous suspension of the drug begins to decrease up to the concentration at which the reduction in surface tension ceases. The resulting aqueous suspension shows ready redispersibility and will not undergo aggregation of dispersed particles or caking. Because of its good redispersibility, the suspension is useful as a parenteral preparation, eye drops, nasal drops, a preparation for oral administration, a lotion or the like.Type: GrantFiled: July 8, 2002Date of Patent: January 27, 2004Assignee: Senju Pharmaceutical Co., Ltd.Inventors: Shin-ichi Yasueda, Keiichi Matsuhisa, Hideo Terayama, Katsuhiro Inada
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Publication number: 20030008010Abstract: The aqueous suspension can be prepared by incorporating, in an aqueous suspension of a hardly soluble drug, a water-soluble polymer within the concentration range from the concentration at which the surface tension of the aqueous suspension of the drug begins to decrease up to the concentration at which the reduction in surface tension ceases. The resulting aqueous suspension shows ready redispersibility and will not undergo aggregation of dispersed particles or caking. Because of its good redispersibility, the suspension is useful as a parenteral preparation, eye drops, nasal drops, a preparation for oral administration, a lotion or the like.Type: ApplicationFiled: July 8, 2002Publication date: January 9, 2003Inventors: Shin-Ichi Yasueda, Keiichi Matsuhisa, Hideo Terayama, Katsuhiro Inada
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Patent number: 6448296Abstract: The aqueous suspension can be prepared by incorporating, in an aqueous suspension of a hardly soluble drug, a water-soluble polymer within the concentration range from the concentration at which the surface tension of the aqueous suspension of the drug begins to decrease up to the concentration at which the reduction in surface tension ceases. The resulting aqueous suspension shows ready redispersibility and will not undergo aggregation of dispersed particles or caking. Because of its good redispersibility, the suspension is useful as a parenteral preparation, eye drops, nasal drops, a preparation for oral administration, a lotion or the like.Type: GrantFiled: June 5, 2001Date of Patent: September 10, 2002Assignee: Senju Pharmaceutical Co., Ltd.Inventors: Shin-ichi Yasueda, Keiichi Matsuhisa, Hideo Terayama, Katsuhiro Inada
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Patent number: 6379688Abstract: A preservative for emulsion, comprising sorbic acid or a pharmaceutically acceptable salt thereof, and, where necessary, sodium edetate and boric acid; an emulsion comprising sorbic acid or a pharmaceutically acceptable salt thereof, and, where necessary, sodium edetate and boric acid; an emulsion comprising the preservative; a method for preserving an emulsion comprising adding sorbic acid or a pharmaceutically acceptable salt thereof, and, where necessary, sodium edetate and boric acid, at a concentration pharmaceutically acceptable and effective for the preservation of the emulsion; use of sorbic acid or a pharmaceutically acceptable salt thereof for the production of an emulsion or preservative for emulsion; and the use comprising adding, where necessary, sodium edetate and boric acid.Type: GrantFiled: February 24, 1998Date of Patent: April 30, 2002Assignee: Senju Pharmaceutical Co., Ltd.Inventors: Masazumi Yamaguchi, Masayo Yamaguchi, Katsuhiro Inada
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Patent number: 6333045Abstract: There is provided an aqueous liquid pharmaceutical composition which comprises Gatifloxacin (chemical nomenclature: (±)-1-cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-7-(3-methyl-1-piperazinyl)-4-oxo-3-quinoline carboxylic acid) or its salt and disodium edetate. Further, there are provided a method for raising corneal permeability of Gatifloxacin, a method for preventing precipitation of Gatifloxacin crystals, and a method for preventing coloration of Gatifloxacin by incorporating disodium edetate into an aqueous liquid preparation containing Gatifloxacin or its salt.Type: GrantFiled: April 21, 2000Date of Patent: December 25, 2001Assignees: Senju Pharmaceutical Co., Ltd., Kyorin Pharmaceutical Co., Ltd.Inventors: Shinichi Yasueda, Katsuhiro Inada
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Publication number: 20010036966Abstract: The aqueous suspension can be prepared by incorporating, in an aqueous suspension of a hardly soluble drug, a water-soluble polymer within the concentration range from the concentration at which the surface tension of the aqueous suspension of the drug begins to decrease up to the concentration at which the reduction in surface tension ceases. The resulting aqueous suspension shows ready redispersibility and will not undergo aggregation of dispersed particles or caking. Because of its good redispersibility, the suspension is useful as a parenteral preparation, eye drops, nasal drops, a preparation for oral administration, a lotion or the like.Type: ApplicationFiled: June 5, 2001Publication date: November 1, 2001Inventors: Shin-Ichi Yasueda, Keiichi Matsuhisa, Hideo Terayama, Katsuhiro Inada
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Patent number: 6274634Abstract: The aqueous suspension can be prepared by incorporating, in an aqueous suspension of a hardly soluble drug, a water-soluble polymer within the concentration range from the concentration at which the surface tension of the aqueous suspension of the drug begins to decrease up to the concentration at which the reduction in surface tension ceases. The resulting aqueous suspension shows ready redispersibility and will not undergo aggregation of dispersed particles or caking. Because of its good redispersibility, the suspension is useful as a parenteral preparation, eye drops, nasal drops, a preparation for oral administration, a lotion or the like.Type: GrantFiled: November 10, 1999Date of Patent: August 14, 2001Assignee: Senju Pharmaceutical Co., Ltd.Inventors: Shin-ichi Yasueda, Keiichi Matsuhisa, Hideo Terayama, Katsuhiro Inada
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Publication number: 20010003003Abstract: A preservative for emulsion, comprising sorbic acid or a pharmaceutically acceptable salt thereof, and, where necessary, sodium edetate and boric acid; an emulsion comprising sorbic acid or a pharmaceutically acceptable salt thereof, and, where necessary, sodium edetate and boric acid; an emulsion comprising the preservative; a method for preserving an emulsion comprising adding sorbic acid or a pharmaceutically acceptable salt thereof, and, where necessary, sodium edetate and boric acid, at a concentration pharmaceutically acceptable and effective for the preservation of the emulsion; use of sorbic acid or a pharmaceutically acceptable salt thereof for the production of an emulsion or preservative for emulsion; and the use comprising adding, where necessary, sodium edetate and boric acid.Type: ApplicationFiled: February 24, 1998Publication date: June 7, 2001Inventors: MASAZUMI YAMAGUCHI, MASAYO YAMAGUCHI, KATSUHIRO INADA
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Patent number: 6114319Abstract: The present invention relates to a liquid composition comprising difluprednate, oil, water and an emulsifier. The composition of the present invention has superior antiinflammatory action and antiallergic action. The composition of the present invention shows superior transfer to a lesion and uniform drug distribution upon administration, as compared to conventional preparations containing difluprednate, so that it shows sufficient efficacy in a smaller dose. The inventive composition is associated with extremely less uncomfortable feeling and foreign sensation upon administration, as compared to conventional preparations containing difluprednate, and it can be administered easily to local sites of eye, nose, ear and the like.Type: GrantFiled: May 12, 1998Date of Patent: September 5, 2000Assignees: Senju Pharmaceutical Co., Ltd., Mitsubishi Chemical CorporationInventors: Masako Kimura, Shin-ichi Yasueda, Masazumi Yamaguchi, Katsuhiro Inada
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Patent number: 5916550Abstract: The conventional aqueous suspension of loteprednol etabonate is not easily amenable to production pH control and entails a pH depression on long-term storage, thus irritating the eye or the nasal mucosa on instillation.When a C2-7 aliphatic amino acid is added to an aqueous suspension of loteprednol etabonate for topical ophthalmic use, the suspension does not undergo pH depression even on prolonged storage, with the result that no irritable response is elicited in the eye or nasal mucosa.Type: GrantFiled: March 5, 1998Date of Patent: June 29, 1999Assignee: Senju Pharmaceutical Co., Ltd.Inventors: Katsuhiro Inada, Hideo Terayama
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Patent number: 5663205Abstract: A pharmaceutical composition for use in glaucoma treatment which contains as an active ingredient 5-[1-hydroxy-2-[2-(2-methoxyphenoxyl)ethylamino]ethyl]-2-methylbenzenesulf onamide of the formula: ##STR1## or its acid salt. This agent is free from side effects and stable and has an excellent intraocular pressure reducing activity at its low concentrations, thus being useful as a pharmaceutical composition for use in glaucoma treatment.Type: GrantFiled: November 15, 1994Date of Patent: September 2, 1997Assignee: Senju Pharmaceutical Co. Ltd.Inventors: Takahiro Ogawa, Takaaki Deguchi, Yoshifumi Ikejiri, Katsuhiro Inada
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Patent number: 5366985Abstract: A stable aqueous suspension, which is particularly suitable for eyedrops for the treatment of keratopathy and other diseases, containing 5-(3-ethoxy-4-n-pentyloxyphenyl)thiazolidine-2,4-dione can be prepared by adding an acid to an aqueous solution containing one or more members selected from the group consisting of polyvinyl alcohol, polyvinylpyrrolidone, hydroxypropylmethylcellulose, methylcellulose and hydroxyethylcellulose and 5-(3-ethoxy-4-n-pentyloxyphenyl)thiazolidine-2,4-dione and having a pH value of not lower than 8 to adjust said aqueous solution to a pH value of not higher than 7.Type: GrantFiled: November 16, 1992Date of Patent: November 22, 1994Assignee: Senju Pharmaceutical Co., Ltd.Inventors: Hisayuki Nakayama, Kazumichi Ushio, Katsuhiro Inada