Patents by Inventor Hayato Yamasaki

Hayato Yamasaki 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).

  • Patent number: 8563495
    Abstract: There are provided a resist remover composition containing an amide solvent (A) represented by the following formula (1) and an organic amine compound (B), and a method for removing a resist using the resist remover composition, i.e., a resist remover composition that provides a sufficient removing capability even in a state where a resist is dissolved therein and is capable of being used for a prolonged period of time, and a method for removing a resist using the same. wherein R1 represents a linear, branched or cyclic alkyl group having from 1 to 6 carbon atoms; R2 and R3 each independently represent a linear or branched alkyl group having from 1 to 3 carbon atoms; and n represents an integer of from 0 to 2.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: October 22, 2013
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Toyozo Fujioka, Hayato Yamasaki
  • Publication number: 20110287995
    Abstract: There are provided a resist remover composition containing an amide solvent (A) represented by the following formula (1) and an organic amine compound (B), and a method for removing a resist using the resist remover composition, i.e., a resist remover composition that provides a sufficient removing capability even in a state where a resist is dissolved therein and is capable of being used for a prolonged period of time, and a method for removing a resist using the same. wherein R1 represents a linear, branched or cyclic alkyl group having from 1 to 6 carbon atoms; R2 and R3 each independently represent a linear or branched alkyl group having from 1 to 3 carbon atoms; and n represents an integer of from 0 to 2.
    Type: Application
    Filed: January 29, 2010
    Publication date: November 24, 2011
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Toyozo Fujioka, Hayato Yamasaki