Patents by Inventor Masayoshi Chigira

Masayoshi Chigira 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).

  • Softener composition
    Patent number: 4678590
    Abstract: This invention provides a highly concentrated aqueous softener composition which has improved viscosity characteristics and an excellent long-term storability. The softener composition comprises 7 to 50% by weight of cationic softening agent, 0.05 to 10% by weight of alkylene oxide adducted nonionic surfactant having at least one unsaturated bond in its molecule, 0.005 to 5% by weight of inorganic electrolyte, and the balance of water.
    Type: Grant
    Filed: October 24, 1985
    Date of Patent: July 7, 1987
    Assignee: Lion Corporation
    Inventors: Kazuhito Nakamura, Hisami Sasaki, Masayoshi Chigira, Kenji Yokoi