Patents by Inventor Keiko Saita

Keiko Saita 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).

  • Flux for Pb-free Sn-based alloy solders
    Patent number: 6630036
    Abstract: An object of the present invention is to provide a novel flux, which has sufficient cleaning performance and tolerates to be used under a high flex temperature when used for so-called Pb-free solder, such as Sn—Ag or Sn—Ag—Bi based solder, and which causes no deterioration of material or no disorder in durability and; the soldering flux of the present invention is a soldering flux, in which abietic acid, the main component of rosin, is used as a main base material component, and a solid acid compound, in which a halide ion is not a constituent element, is used as the inorganic component having a function to enhance the flux activity which is added and dispersed in said rosin-based base material.
    Type: Grant
    Filed: September 19, 2001
    Date of Patent: October 7, 2003
    Assignee: Advatest Corporation
    Inventors: Keiko Saita, Masao Watanabe
  • Flux for Pb-free Sn-based alloy solders
    Publication number: 20020033204
    Abstract: An object of the present invention is to provide a novel flux, which has sufficient cleaning performance and tolerates to be used under a high flex temperature when used for so-called Pb-free solder, such as Sn—Ag or Sn—Ag—Bi based solder, and which causes no deterioration of material or no disorder in durability and; the soldering flux of the present invention is a soldering flux, in which abietic acid, the main component of rosin, is used as a main base material component, and a solid acid compound, in which a halide ion is not a constituent element, is used as the inorganic component having a function to enhance the flux activity which is added and dispersed in said rosin-based base material.
    Type: Application
    Filed: September 19, 2001
    Publication date: March 21, 2002
    Inventors: Keiko Saita, Masao Watanabe