Patents Assigned to Toko Yakuhin Industry Co., Ltd.
  • Gel preparations for topical application of diclofenac sodium
    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
  • Pharmaceutical preparations
    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
  • Gel preparations for external application
    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