Patents by Inventor Toshikuni Kawaji

Toshikuni Kawaji 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: 7276641
    Abstract: An aqueous hot melted type adhesive base material containing 4-biphenylyl acetic acid (BPAA) is provided. The adhesive base material contains constant amounts of BPAA and has good drug releasability, so that bioavailability of the drug is enhanced. An analgesic and anti-inflammatory external plaster containing BPAA is also provided. The plaster is obtained by dissolving BPAA into an aqueous hot melted type adhesive base material comprising as essential components a styrene-isoprene-styrene block copolymer, an adhesive resin, an antioxidant, lanolin, and water.
    Type: Grant
    Filed: September 6, 2005
    Date of Patent: October 2, 2007
    Assignee: Teikoku Seiyaku Co., Ltd.
    Inventor: Toshikuni Kawaji
  • Publication number: 20060015054
    Abstract: An aqueous hot melted type adhesive base material containing 4-biphenylyl acetic acid (BPAA) is provided. The adhesive base material contains constant amounts of BPAA and has good drug releasability, so that bioavailability of the drug is enhanced. An analgesic and anti-inflammatory external plaster containing BPAA is also provided. The plaster is obtained by dissolving BPAA into an aqueous hot melted type adhesive base material comprising as essential components a styrene-isoprene-styrene block copolymer, an adhesive resin, an antioxidant, lanolin, and water.
    Type: Application
    Filed: September 6, 2005
    Publication date: January 19, 2006
    Applicant: Teikoku Seiyaku Co., Ltd.
    Inventor: Toshikuni Kawaji
  • Patent number: 6946514
    Abstract: An external plaster using an aqueous hot melted type adhesive base material stably containing water-soluble drug having good drug releasability, so that bioavailability of the drug is enhanced, is provided. The aqueous hot melted type adhesive base material used in the external plaster comprising as essential components a styrene-isoprene-styrene block copolymer, an adhesive resin, an antioxidant, lanolin, and water.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: September 20, 2005
    Assignee: Teikoko Seiyaku Co. Ltd.
    Inventor: Toshikuni Kawaji
  • Publication number: 20030100852
    Abstract: An external plaster using an aqueous hot melted type adhesive base material stably containing water-soluble drug having good drug releasability, so that bioavailability of the drug is enhanced, is provided. The aqueous hot melted type adhesive base material used in the external plaster comprising as essential components a styrene-isoprene-styrene block copolymer, an adhesive resin, an antioxidant, lanolin, and water.
    Type: Application
    Filed: August 8, 2002
    Publication date: May 29, 2003
    Inventor: Toshikuni Kawaji
  • Publication number: 20030088199
    Abstract: An aqueous hot melted type adhesive base material containing 4-biphenylyl acetic acid (BPAA) is provided. The adhesive base material contains constant amounts of BPAA and has good drug releasability, so that bioavailability of the drug is enhanced. An analgesic and anti-inflammatory external plaster containing BPAA is also provided. The plaster is obtained by dissolving BPAA into an aqueous hot melted type adhesive base material comprising as essential components a styrene-isoprene-styrene block copolymer, an adhesive resin, an antioxidant, lanolin, and water.
    Type: Application
    Filed: August 8, 2002
    Publication date: May 8, 2003
    Inventor: Toshikuni Kawaji
  • Patent number: 6262121
    Abstract: The oil patches containing diclofenac sodium which are characterized in that diclofenac sodium, isostearic acid and a fatty acid having 10 to 18 carbon atoms which is liquid at ordinary temperature are combined in an adhesive.
    Type: Grant
    Filed: May 17, 1999
    Date of Patent: July 17, 2001
    Assignee: Teikoku Seiyaku Co., Ltd.
    Inventors: Toshikuni Kawaji, Masahiro Yamaji
  • Patent number: 6231884
    Abstract: The present invention provides plasters containing an adhesive base material which comprise , by wt % of the adhesive base material, 15-25 wt % of isosorbide dinitrate, 15-35 wt % of styrene-isoprene-styrene block copolymer, 35-55 wt % of rosin resin, 5-20 wt % of liquid rubber, 0.1-2 wt % of antioxidant, and 0.1-5 wt % of oleic acid for transdermal application. The plasters of the present invention have excellent adhesion and stable releasing of the active ingredient from the adhesive layer after applied to the skin.
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: May 15, 2001
    Assignee: Teikoku Seiyaku Co., Ltd.
    Inventors: Toshikuni Kawaji, Masahiro Yamaji
  • Patent number: 6177098
    Abstract: Patch preparations for percutaneous adsorption with the use of supports showing appropriate strength as a patch support, which are excellent in drug barrier characteristics, compatibility with the skin, ODT effects and handling characteristics and can sustain these specific properties in a stable state over a prolonged period of time, thus ensuring good percutaneous absorption of drugs. In these patch preparation, use is made as the support of polyester film/nonwoven vinylon fabric laminates showing an elongation percentage of at least 5% and a tensile cutting load of at least 0.5 kg/10 mm, when measured by the test method specified in JIS K6732. In particular, the thickness of the polyester film constituting the laminate supports ranges from 1.5 to 6.0 &mgr;m and the unit weight of the nonwoven vinylon fabric ranges from 3 to 12 g/m2.
    Type: Grant
    Filed: June 23, 1999
    Date of Patent: January 23, 2001
    Assignee: Teikoku Seiyaku Co., Ltd.
    Inventors: Toshikuni Kawaji, Masahiro Yamaji
  • Patent number: 5082663
    Abstract: An external adhesive preparation comprising a steroid for treatment of skin diseases in admixture with an adhesive gel base comprising as essential components a water-soluble high molecular weight compound, water and a water-retaining agent. The external adhesive preparation is useful for treatment of skin diseases by applying the preparation spread on a soft support directly to diseased parts on the skin, thereby administering the contained steroid to the skin.
    Type: Grant
    Filed: January 11, 1991
    Date of Patent: January 21, 1992
    Assignees: Teikoku Seiyaky Co., Ltd., SS Pharmaceutical Co., Ltd.
    Inventors: Ryoji Konishi, Akihito Oji, Toshikuni Kawaji, Osami Makaya, Manabu Ishihara, Akira Iwasa
  • Patent number: 4978531
    Abstract: A transdermal patch having a drug reservoir layer on a backing sheet, the drug reservoir layer comprises an adhesive gel base containing clebopride or a pharmaceutically acceptable salt thereof, the adhesive gel base containing as essential components, a water-soluble polymer, water and a water-holding agent. The use of such a patch permits adequate concentration of clebopride to be maintained in the blood over prolonged periods of time while avoiding the problems of multiple administrations of clebopride by conventional methods.
    Type: Grant
    Filed: August 11, 1988
    Date of Patent: December 18, 1990
    Assignee: Fordonal, S.A.
    Inventors: Keiko Yamazaki, Toshikuni Kawaji