Patents by Inventor Tadahiro Chiba

Tadahiro Chiba 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: 5500416
    Abstract: A percutaneous absorption promoting agent comprising (A) at least one anionic surfactant and one or two or more of surfactants having a nitrogen atom in the molecule other than anionic surfactants, (B) one or two or more of anionic surfactants and one or two or more of nonionic surfactants not having a nitrogen atom in the molecule, (C) one or two or more of surfactants selected from the group consisting of amphoteric surfactant and semi-polar surfactants and at least one nonionic surfactant having a nitrogen atom in the molecule, (D) one or two or more of surfactants selected from the group consisting of nonionic surfactants, amphoteric surfactants, semi-polar surfactants and cationic surfactants having a nitrogen atom in the molecule, and one or two or more of nonionic surfactants not having a nitrogen atom in the molecule, or (E) an amine oxide as the active ingredient, and a dermatological preparation containing these percutaneous absorption promoting agent and drug components.
    Type: Grant
    Filed: September 10, 1993
    Date of Patent: March 19, 1996
    Assignee: Shiseido Company Ltd.
    Inventors: Kiyoshi Miyazawa, Tadahiro Chiba, Yuhei Iwata, Uhei Tamura, Isao Murotani, Shuya Tamaki
  • Patent number: 5120716
    Abstract: A percutaneous absorption promoting agent comprising (A) at least one anionic surfactant and one or two or more of surfactants having a nitrogen atom in the molecule other than anionic surfactants, (B) one or two or more of anionic surfactants and one or two or more of nonionic surfactants not having a nitrogen atom in the molecule, (C) one or two or more of surfactants selected from the group consisting of amphoteric surfactant and semi-polar surfactants and at least one nonionic surfactant having a nitrogen atom in the molecule, (D) one or two or more of surfactants selected from the group consisting of nonionic surfactants, amphoteric surfactants, semi-polar surfactants and cationic surfactants having a nitrogen atom in the molecule, and one or two or more of nonionic surfactants not having a nitrogen atom in the molecule, or (E) an amine oxide as the active ingredient, and a dermatological preparation containing these percutaneous absorption promoting agent and drug components.
    Type: Grant
    Filed: October 5, 1988
    Date of Patent: June 9, 1992
    Assignee: Shiseido Company Ltd.
    Inventors: Kiyoshi Miyazawa, Tadahiro Chiba, Yuhei Iwata, Uhei Tamura, Isao Murotani, Shuya Tamaki
  • Patent number: 4985425
    Abstract: A dissolved composition containing (A) one or more of [benzo-1,2,4-thiadiazine]-1,1-dioxide derivatives, (B) dimethyl sulfoxide, benzyl alcohol, or the mixture thereof; (C) water; and (D) one or more anionic surfactants and/or surfactants, other than anionic surfactants, having a nitrogen atom in the molecule thereof, or (D') n-decylmethyl sulfoxide, or (D") (i) one or more ampholytic surfactants and/or nonioni-cationic-polar surfactants and (ii) one or more nonionic surfactants having a nitrogen atom in the molecule thereof and, optionally, (E) isopropyl alcohol and (F) a pH controller.This dissolved composition is effective as an ingredient for a hair germination and hair growth promoting agent.
    Type: Grant
    Filed: January 21, 1988
    Date of Patent: January 15, 1991
    Assignee: Shiseido Company Ltd.
    Inventors: Tadahiro Chiba, Kiyoshi Miyazawa, Makoto Uzuka, Takashi Suzuki