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).

  • Patent number: 7047708
    Abstract: 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: Grant
    Filed: December 16, 2003
    Date of Patent: May 23, 2006
    Assignees: 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
  • Patent number: 6764481
    Abstract: 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: Grant
    Filed: April 27, 2000
    Date of Patent: July 20, 2004
    Assignees: 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
  • Publication number: 20040123563
    Abstract: 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: Application
    Filed: December 16, 2003
    Publication date: July 1, 2004
    Applicants: 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
  • Patent number: 6683070
    Abstract: 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: Grant
    Filed: July 8, 2002
    Date of Patent: January 27, 2004
    Assignee: Senju Pharmaceutical Co., Ltd.
    Inventors: Shin-ichi Yasueda, Keiichi Matsuhisa, Hideo Terayama, Katsuhiro Inada
  • Publication number: 20030008010
    Abstract: 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: Application
    Filed: July 8, 2002
    Publication date: January 9, 2003
    Inventors: Shin-Ichi Yasueda, Keiichi Matsuhisa, Hideo Terayama, Katsuhiro Inada
  • Patent number: 6448296
    Abstract: 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: Grant
    Filed: June 5, 2001
    Date of Patent: September 10, 2002
    Assignee: Senju Pharmaceutical Co., Ltd.
    Inventors: Shin-ichi Yasueda, Keiichi Matsuhisa, Hideo Terayama, Katsuhiro Inada
  • Patent number: 6379688
    Abstract: 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: Grant
    Filed: February 24, 1998
    Date of Patent: April 30, 2002
    Assignee: Senju Pharmaceutical Co., Ltd.
    Inventors: Masazumi Yamaguchi, Masayo Yamaguchi, Katsuhiro Inada
  • Patent number: 6333045
    Abstract: 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: Grant
    Filed: April 21, 2000
    Date of Patent: December 25, 2001
    Assignees: Senju Pharmaceutical Co., Ltd., Kyorin Pharmaceutical Co., Ltd.
    Inventors: Shinichi Yasueda, Katsuhiro Inada
  • Publication number: 20010036966
    Abstract: 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: Application
    Filed: June 5, 2001
    Publication date: November 1, 2001
    Inventors: Shin-Ichi Yasueda, Keiichi Matsuhisa, Hideo Terayama, Katsuhiro Inada
  • Patent number: 6274634
    Abstract: 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: Grant
    Filed: November 10, 1999
    Date of Patent: August 14, 2001
    Assignee: Senju Pharmaceutical Co., Ltd.
    Inventors: Shin-ichi Yasueda, Keiichi Matsuhisa, Hideo Terayama, Katsuhiro Inada
  • Publication number: 20010003003
    Abstract: 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: Application
    Filed: February 24, 1998
    Publication date: June 7, 2001
    Inventors: MASAZUMI YAMAGUCHI, MASAYO YAMAGUCHI, KATSUHIRO INADA
  • Patent number: 6114319
    Abstract: 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: Grant
    Filed: May 12, 1998
    Date of Patent: September 5, 2000
    Assignees: Senju Pharmaceutical Co., Ltd., Mitsubishi Chemical Corporation
    Inventors: Masako Kimura, Shin-ichi Yasueda, Masazumi Yamaguchi, Katsuhiro Inada
  • Patent number: 5916550
    Abstract: 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: Grant
    Filed: March 5, 1998
    Date of Patent: June 29, 1999
    Assignee: Senju Pharmaceutical Co., Ltd.
    Inventors: Katsuhiro Inada, Hideo Terayama
  • Patent number: 5663205
    Abstract: 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: Grant
    Filed: November 15, 1994
    Date of Patent: September 2, 1997
    Assignee: Senju Pharmaceutical Co. Ltd.
    Inventors: Takahiro Ogawa, Takaaki Deguchi, Yoshifumi Ikejiri, Katsuhiro Inada
  • Patent number: 5366985
    Abstract: 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: Grant
    Filed: November 16, 1992
    Date of Patent: November 22, 1994
    Assignee: Senju Pharmaceutical Co., Ltd.
    Inventors: Hisayuki Nakayama, Kazumichi Ushio, Katsuhiro Inada