Patents by Inventor Tooru Tsujishita

Tooru Tsujishita 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).

  • Fluorine-containing vinyl ethers, their polymers, and resist compositions using such polymers
    Patent number: 7256316
    Abstract: A fluorine-containing vinyl ether represented by formula 1, wherein R represents an organic group containing at least one fluorine atom and a cyclic structure is provided. A fluorine-containing copolymer containing (a) a first unit derived from a first monomer that is a fluorine-containing vinyl ether represented by formula 8: where R1 is —H or a C1-C8 alkyl group that optionally contains an oxygen atom; and (b) a second unit derived from a second monomer that is at least one selected from acrylic esters and methacrylic esters is also provided.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: August 14, 2007
    Assignee: Central Glass Company, Limited
    Inventors: Satoru Kobayashi, Kazuhiko Maeda, Tooru Tsujishita
  • Fluorine-containing vinylethers, their polymers, and resist compositions using such polymers
    Publication number: 20060074263
    Abstract: The invention relates to a fluorine-containing vinyl ether represented by the formula (1), wherein R represents an organic group containing at least one fluorine atom and a cyclic structure. The invention further relates to a fluorine-containing copolymer containing (a) a first unit derived from a first monomer that is a fluorine-containing vinyl ether represented by the formula (8) where R1 is —H or a C1-C8 alkyl group that optionally contains an oxygen atom; and (b) a second unit derived from a second monomer that is at least one selected from acrylic esters and methacrylic esters.
    Type: Application
    Filed: October 30, 2003
    Publication date: April 6, 2006
    Applicant: Central Glass Company, Limited
    Inventors: Satoru Kobayashi, Kazuhiko Maeda, Tooru Tsujishita