Patents by Inventor Takuzo Kamishita

Takuzo Kamishita 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: 6017920
    Abstract: An antifungal composition for external use being retentive in the stratum corneum containing as an active ingredient an antifungal agent having a high affinity for keratin, wherein the penetration into the stratum corneum of said antifungal agent is enhanced and the retentivity thereof is improved, which comprises incorporating one or more oily liquid substances selected from the group consisting of methyl salicylate, glycol salicylate, crotamiton, and peppermint oil or menthol.
    Type: Grant
    Filed: January 5, 1996
    Date of Patent: January 25, 2000
    Assignee: Toko Yakuhin Kogyo Kabushiki Kaisha
    Inventors: Takuzo Kamishita, Takashi Miyazaki
  • Patent number: 5750579
    Abstract: A quick-drying, gel-type disinfectant composition useful for disinfecting the hands and fingers of workers such as doctors and nurses and patients in hospitals, which can readily be used without overflowing or falling from the hands and fingers and can be well spreaded onto the hands and fingers by rubbing with neither occurrence of twisted scale-like residue nor unpleasant stickiness before or after drying, which comprises a solution of a disinfectious medicament in an alcohol and a thickening agent consisting of a combination of a carboxyvinyl polymer and a water-soluble, high molecular cellulose compound.
    Type: Grant
    Filed: April 29, 1996
    Date of Patent: May 12, 1998
    Assignee: Toko Yakuhin Kogyo Kabushiki Kaisha
    Inventors: Takuzo Kamishita, Takashi Miyazaki
  • Patent number: 5215739
    Abstract: A spray gel base having an excellent spread-stick property, which is prepared by thickening a 0.2-1.5 % by weight aqueous solution of carboxyvinyl polymer with a water-soluble basic substance, followed by adjusting the viscosity thereof with a viscosity adjustor within the range of 500-5,000 centipoise so that the particle size distribution of spray after spraying is over 80% in the area of 20-100 .mu.m and a spray gel preparation having an excellent spread-stick property, which is prepared by mixing an active medicament with said spray gel base.
    Type: Grant
    Filed: July 25, 1991
    Date of Patent: June 1, 1993
    Assignee: Toko Yakuhin Kogyo Kabushiki Kaisha
    Inventors: Takuzo Kamishita, Takashi Miyazaki, Yoshihide Okuno
  • Patent number: 5158761
    Abstract: A spray base gel having an excellent spread-stick property, which is prepared by thickening a 0.2-1.5% by weight aqueous solution of carboxyvinyl polymer with a water-soluble basic substance, followed by adjusting the viscosity thereof with a viscosity adjustor within the range of 500-5,000 centipoise so that the particle size distribution of spray after spraying is over 80% in the area of 20-100 .mu.m and a spray gel preparation having an excellent spread-stick property, which is prepared by mixing an active medicament with said spray gel base.
    Type: Grant
    Filed: March 20, 1990
    Date of Patent: October 27, 1992
    Assignee: Toko Yakuhin Kogyo Kabushiki Kaisha
    Inventors: Takuzo Kamishita, Takashi Miyazaki, Yoshihide Okuno
  • Patent number: 5064122
    Abstract: A disposable nozzle adapter for intranasal administration of a viscous medical solution in combination with a spray container, which comprises a cylindrical body, a rod arranged in the body, and a nozzle tip. The body has a cylindrical chamber and a central bore communicated with the chamber through a channel for attachment of the spray container. The rod is provided on its one end at the least with a small-sized portion and middle-sized portion. The nozzle tip has a top wall and a cylindrical portion extending therefrom, the top wall being provided with a central spray opening including a tapered recess, and swirl grooves extending outwardly from the tapered recess to the inner surface of the cylindrical portion. The swirl grooves have a cross-sectional area increasing outwardly and its cross-sectional area is 0.03 to 0.08 mm.sup.2 at the minimum.
    Type: Grant
    Filed: August 10, 1990
    Date of Patent: November 12, 1991
    Assignee: Toko Yakuhin Kogyo Kabushiki Kaisha
    Inventors: Takuzo Kamishita, Toshiaki Takagi
  • Patent number: 4983386
    Abstract: A gel ointment base having stable viscosity and resistant to a light which comprises an aqueous carboxyvinyl polymer solution and an amino acid in an amount effective for increasing the viscosity of the aqueous carboxyvinyl polymer solution, and a gel ointment comprises an active medical substance and the gel ointment base as set forth above, which has stable viscosity and resistant to a light at a pH range which does not give any irritation to viscous membranes and skins.
    Type: Grant
    Filed: May 1, 1989
    Date of Patent: January 8, 1991
    Assignee: Toko Yakuhin Kogyo Kabushiki Kaisha
    Inventors: Takuzo Kamishita, Takashi Miyazaki, Yoshihide Okuno
  • Patent number: 4670254
    Abstract: Anti-inflammatory, stable and painless topical gel preparations comprising diclofenac sodium as the active ingredient; water, ethanol and a glycol as the solvent medium; a carboxyvinyl polymer obtained by the polymerization of acrylic acid as a gelling agent; and a weakly basic aliphatic amine as a neutralizing agent for the carboxyvinyl polymer.
    Type: Grant
    Filed: September 24, 1985
    Date of Patent: June 2, 1987
    Assignee: Toko Yakuhin Industry Co., Ltd.
    Inventor: Takuzo Kamishita
  • Patent number: 4636520
    Abstract: This invention relates to an antifungal composition containing pyrrolnitrin and an antimycotic imidazole compound as active ingredients.
    Type: Grant
    Filed: July 3, 1985
    Date of Patent: January 13, 1987
    Assignees: Fujisawa Pharmaceutical Co., Ltd., Toko Yakuhin Kogyo Co., Ltd.
    Inventors: Suminori Umio, Toshiaki Kamimura, Takuzo Kamishita, Yasuhiro Mine
  • Patent number: 4545992
    Abstract: A pharmaceutical preparation for external use which comprises a solution of a non-steroid antipholgistic analgesic agent which is dissolved in at least one adjuvant selected from the group consisting of peppermint oil, methyl salicylate, ethyl salicylate and monoglycol salicylate in an amount at least sufficient to dissolve said antipholgistic analgesic agent, and bases for external use.
    Type: Grant
    Filed: July 26, 1982
    Date of Patent: October 8, 1985
    Assignee: Toko Yakuhin Industry Co., Ltd.
    Inventor: Takuzo Kamishita
  • Patent number: 4543251
    Abstract: A gel preparation for external application by being prepared from diclofenac sodium as the active ingredient, water, lower alkanols and glycols as medium, a carboxyvinyl polymer as gelating agent, a weak basic substances and optionally adding peppermint oil, l-menthol or salicylic acid ester as auxiliary agent.
    Type: Grant
    Filed: December 9, 1983
    Date of Patent: September 24, 1985
    Assignee: Toko Yakuhin Industry Co., Ltd.
    Inventor: Takuzo Kamishita
  • Patent number: 4472376
    Abstract: A phamaceutical insertion composition comprising a mixture of an aqueous solution of carboxyvinyl polymer with a water-soluble basic compound and a pharmaceutical ingredient, said mixture being a gel having a pH value of from 4 to 10 and a viscosity of from 5,000 to 100,000 centipoises at 20.degree. C., which composition is applied to the rectal, vaginal or urethral tissue and the pharmaceutical ingredient is absorbed into the blood stream of the human body.
    Type: Grant
    Filed: January 31, 1983
    Date of Patent: September 18, 1984
    Assignee: Toko Yakuhin Kogyo Kabushiki Kaisha
    Inventor: Takuzo Kamishita
  • Patent number: 4316887
    Abstract: An anti-inflammatory, analgesic and anti-pruritic compositions for topical application is made by mixing an aqueous alcoholic solution of methanol or camphor with sufficient water soluble carboxyvinyl polymer to give a viscosity of 2,000 to 20,000 centipoises at 20.degree. C., sufficient basic agent, such as an amine, to neutralize the carboxyl groups to a pH of 6.0-7.5 and a small amount of sodium chloride.
    Type: Grant
    Filed: February 29, 1980
    Date of Patent: February 23, 1982
    Assignee: Toko Yakuhin Kogyo Kabushiki Kaisha
    Inventors: Takuzo Kamishita, Kazuhiko Kamishita
  • Patent number: 4267169
    Abstract: A new type of preparation of clotrimazole, such as gel preparation, creamy preparation and liquid preparation, which are useful for an external use for the treatment of various trichophytoses, wherein the active clotrimazole is contained as being dissolved in crotamiton. Said new type of preparation of clotrimazole can be applied to the skin without drawbacks such as skin irritation and soiling of clothes as seen in the conventional tincture or ointments.
    Type: Grant
    Filed: July 12, 1979
    Date of Patent: May 12, 1981
    Assignee: Toko Yakuhin Kogyo Kabushiki Kaisha
    Inventors: Takuzo Kamishita, Kazuhiko Kamishita
  • Patent number: 4244942
    Abstract: A creamy preparation containing a steroid compound having a pH of 4 to 7 and a viscosity of 10,000 to 100,000 centipoises, which is applicable to the skin and comprises a steroid compound (corticosteroids), a fluid oily substance, a nonionic surfactant, and an aqueous solution of carboxyvinyl polymer, said preparation having been neutralized with a basic substance, and a process for the preparation thereof. The creamy preparation has an excellent absorbability of the active steroid, excellent stability and excellent spreadability onto the skin and also good feeling in use.
    Type: Grant
    Filed: June 8, 1979
    Date of Patent: January 13, 1981
    Assignee: Toko Yakuhin Kogyo Kabushiki Kaisha
    Inventors: Takuzo Kamishita, Kazuhiko Kamishita
  • Patent number: 4008321
    Abstract: A composition for a topical preparation which comprises a steroid, crotamiton, propylene glycol and a carboxyvinyl polymer in an aqueous medium, said composition having been neutralized with an organic amine, and a process for producing the same which comprises adding a mixed solution of crotamiton and propylene glycol containing a steroid to an aqueous solution of a carboxyvinyl polymer, followed by neutralizing the resultant solution with an organic amine while stirring, to give a transparent, gelatinous topical composition.
    Type: Grant
    Filed: December 8, 1975
    Date of Patent: February 15, 1977
    Assignee: Toko Yakuhin Kogyo Kabushiki Kaisha
    Inventors: Takuzo Kamishita, Shigeyoshi Hiraki