Patents by Inventor Shigeki Terayama

Shigeki Terayama 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).

  • Resist residue remover
    Patent number: 6534459
    Abstract: The invention provides a nontoxic, undangerous resist residue remover that enables removal of resist residues to be carried out without metal corrosion or other problems and with safety. The remover is an aqueous solution containing ammonium phosphate and/or condensed ammonium phosphate and having a pH ranging from 1 to 10.
    Type: Grant
    Filed: August 9, 2000
    Date of Patent: March 18, 2003
    Assignee: Kishimoto Sangyo Co., Ltd.
    Inventors: Takashi Yata, Shigeki Terayama, Yutaka Koinuma, Takeru Ohgushi