Patents by Inventor Sachio Ohotoshi

Sachio Ohotoshi 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).

  • Method for moistureproof coating of an electrical product
    Patent number: 4698240
    Abstract: A method for moistureproof coating of an electrical product, which comprises applying an organic solution of a polyfluoroalkyl group-containing polymer dissolved in a non-combustible low boiling point organic solvent, to a surface of an electrical product, and drying it by evaporating the low boiling point organic solvent, to form a coating layer of the polyfluoroalkyl group-containing polymer on the surface of the electrical product, wherein said polyfluoroalkyl group-containing polymer is a copolymer of a polymerizable compound having a polyfluoroalkyl group with other polymerizable compound, and the copolymer has a glass transition temperature of not higher than 60.degree. C.
    Type: Grant
    Filed: February 19, 1986
    Date of Patent: October 6, 1987
    Assignee: Asahi Glass Company, Ltd.
    Inventors: Yusuke Ono, Sachio Ohotoshi, Masaru Yamauchi
  • Method for soldering an electrical product
    Patent number: 4615479
    Abstract: A method for soldering an electrical product with a soldering flux, wherein an aqueous dispersion or an organic solvent solution of a compound containing a polyfluoroalkyl or polyfluoroether group having from 4 to 21 carbon atoms is applied to a peripheral portion around the soldering portion and dried to form a coating of said compound so as to prevent the soldering flux from penetrating to or depositing on said peripheral portion.
    Type: Grant
    Filed: February 21, 1985
    Date of Patent: October 7, 1986
    Assignees: Asahi Glass Company Ltd., Seimi Chemical Company Ltd.
    Inventors: Sachio Ohotoshi, Fumio Hase