Patents by Inventor Tsukasa Yasoshima

Tsukasa Yasoshima 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).

  • Publication number: 20190390357
    Abstract: A tin alloy plating solution comprising a soluble tin salt, a soluble salt of a metal nobler than tin, and a sulfide compound represented by general formula (I). In formula (I), n is 1 to 3. The metal nobler than tin is preferably silver, copper, gold, or bismuth.
    Type: Application
    Filed: December 13, 2017
    Publication date: December 26, 2019
    Inventors: Kouji Tatsumi, Tsukasa Yasoshima, Takuma Katase
  • Publication number: 20190338433
    Abstract: The SnAg alloy plating solution of the invention is a SnAg alloy plating solution including a water-soluble tin compound, a water-soluble silver compound, and a particular sulfide compound in an amount in the range of 0.25 mol or more and 10 mol or less with respect to 1 mol of silver in the water-soluble silver compound.
    Type: Application
    Filed: December 21, 2016
    Publication date: November 7, 2019
    Inventors: Koji Tatsumi, Tsukasa Yasoshima, Takuma Katase