Patents Assigned to Mishimazo Yuaka
  • Process for preparing melanogenic inhibitor, and pigmentation-lightening agent containing the same
    Patent number: 5077059
    Abstract: The present invention relates to a process for preparing a melanogenic inhibitor and a pigmentation-lightening agent containing the same, more particularly, the present invention relates to a process for preparing a novel melanogenic inhibitor which is obtained by proliferating an established cell line from a warm-blooded animal, homogenizing the proliferated cells and recovering the same from the resultant homogenate, as well as to a pigmentation-lightening agent containing the same.
    Type: Grant
    Filed: December 22, 1988
    Date of Patent: December 31, 1991
    Assignees: Mishimazo Yuaka, Seibutsu Kagaku Kenkyujo, Sansho Seiyaku Kabushiki Kaisha, Sansho Seiyaku Kabushiki Kaisha
    Inventors: Yuyaka Mishima, Yasuaki Oyama, Masashi Kurimoto