Patents by Inventor Kazuo Takebe

Kazuo Takebe 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).

  • Aromatic allyl amine thermosetting resin composition
    Patent number: 5109087
    Abstract: A thermosetting resin composition useful for a copper-clad laminate is provided, which comprise (A) an aromatic diamine compound represented by the following formula: ##STR1## wherein Ar is a divalent aromatic residue, and R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each is an allyl group or a hydrogen atom but at least one of them is an allyl group, and (B) a polymaleimide compound having two or more maleimide groups in a molecule thereof.
    Type: Grant
    Filed: January 12, 1990
    Date of Patent: April 28, 1992
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shigeki Naitoh, Yasuhisa Saito, Yasuhiro Hirano, Kazuo Takebe, Kunimasa Kamio, Youichi Ueda