Patents by Inventor Soichi Une

Soichi Une 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: 4024213
    Abstract: A resin sheet having a porous layered structure useful as an electrode separator for electric cells, said sheet comprising (a) an olefin resin, (b) a finely divided inorganic substance, and (c) at least one substance selected from the group consisting of (i) a water-swellable thermoplastic resin, (ii) a water-insoluble or difficultly water-soluble hydrophilic nonionic surface active agent, and (iii) a water-insoluble difficultly water-soluble hydrophilic anionic surface active agent, said sheet including fine pores arranged throughout its cross section in a plurality of layers, at least some of them forming open cells.The above sheet is prepared by a process comprising fabricating a mixture containing the above components (a), (b) and (c) into a sheet, and stretching the sheet in at least one direction.
    Type: Grant
    Filed: February 19, 1975
    Date of Patent: May 17, 1977
    Assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha
    Inventors: Seiichirou Honda, Hiroyoshi Hata, Yosimasa Simura, Soichi Une
  • Patent number: 3967978
    Abstract: A resin sheet having a porous layered structure useful as an electrode separator for electric cells, said sheet comprising (a) an olefin resin, (b) a finely divided inorganic substance, and (c) at least one substance selected from the group consisting of (i) a water-swellable thermoplastic resin, (ii) a water-insoluble or difficultly water-soluble hydrophilic nonionic surface active agent, and (iii) a water-insoluble difficultly water-soluble hydrophilic anionic surface active agent, said sheet including fine pores arranged throughout its cross section in a plurality of layers, at least some of them forming open cells.The above sheet is prepared by a process comprising fabricating a mixture containing the above components (a), (b) and (c) into a sheet, and stretching the sheet in at least one direction.
    Type: Grant
    Filed: March 28, 1974
    Date of Patent: July 6, 1976
    Assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha
    Inventors: Seiichirou Honda, Hiroyoshi Hata, Yosimasa Simura, Soichi Une