Patents by Inventor Go Sato

Go Sato 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: 5843338
    Abstract: A composition for water-repellent treatment of zinc and zinc alloys which comprises a non-ionic polymeric compound having both hydrophilic and hydrophobic groups in the molecule, a polyacrylic acid salt and a balance of water. The composition can be used in a method for water-repellent treatment of zinc and zinc alloys which comprises the steps of immersing zinc or zinc alloys which has been subjected to a conversion treatment, then washing it with water and drying the same. The use of the water-soluble composition for water-repellent treatments permits considerable reduction of the contact area between the repellent-treated metal material and moisture which becomes a cause of corrosion under the corrosive environment in which water and oxygen coexist and this accordingly results in the improvement in the corrosion-resistance of the metal material.
    Type: Grant
    Filed: October 22, 1996
    Date of Patent: December 1, 1998
    Assignee: Dipsol Chemicals Co., Ltd.
    Inventors: Manabu Inoue, Tadahiro Ohnuma, Tomitaka Yamamoto, Go Sato
  • Patent number: 5743971
    Abstract: A liquid rust proof film-forming composition comprises (A) an oxidative substance, (B) a silicate and/or silicon dioxide and (C) at least one member selected from the group consisting of metal cations of Ti, Zr, Ce, Sr, V, W and Mo; and oxymetal anions and fluorometal anions thereof. The composition can be used in a method for forming a rust proof film on a metal substrate which comprises the step of immersing the metal substrate in the composition. The composition and the methods form an excellent rust proof film on the surface of metal substrates without using any chemical substance harmful to environment such as hexavalent chromium.
    Type: Grant
    Filed: July 18, 1996
    Date of Patent: April 28, 1998
    Assignee: Dipsol Chemicals Co., Ltd.
    Inventors: Manabu Inoue, Tadahiro Ohnuma, Tomitaka Yamamoto, Go Sato