Patents by Inventor Isamu Yumoto

Isamu Yumoto 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).

  • Curable composition for semiconductor encapsulation
    Patent number: 8470937
    Abstract: Provided are a curable composition for semiconductor encapsulation which produces a cured product that is excellent in heat resistance, electrical insulation properties at high temperatures, flexibility and heat cycle resistance, and a semiconductor device encapsulated by curing this curable composition. Specifically, there is provided a curable composition for semiconductor encapsulation containing, as component (A), a particular SiH group-containing siloxane compound; as component (B), a particular vinyl group-containing siloxane compound; as component (C), a compound having at least three SiH groups or at least three vinyl groups; and as component (D), a hydrosilylation catalyst.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: June 25, 2013
    Assignee: Adeka Corporation
    Inventors: Ken-ichiro Hiwatari, Isamu Yumoto
  • CURABLE COMPOSITION FOR SEMICONDUCTOR ENCAPSULATION
    Publication number: 20120126435
    Abstract: Provided are a curable composition for semiconductor encapsulation which produces a cured product that is excellent in heat resistance, electrical insulation properties at high temperatures, flexibility and heat cycle resistance, and a semiconductor device encapsulated by curing this curable composition. Specifically, there is provided a curable composition for semiconductor encapsulation containing, as component (A), a particular SiH group-containing siloxane compound; as component (B), a particular vinyl group-containing siloxane compound; as component (C), a compound having at least three SiH groups or at least three vinyl groups; and as component (D), a hydrosilylation catalyst.
    Type: Application
    Filed: May 26, 2011
    Publication date: May 24, 2012
    Applicant: ADEKA CORPORATION
    Inventors: Ken-ichiro Hiwatari, Isamu Yumoto