Patents by Inventor Yoichi Ootsuka

Yoichi Ootsuka 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).

  • Publication number: 20070287087
    Abstract: The present invention provides a colored photosensitive resin composition which causes a small change in exposure when a pattern is subjected to projection exposure. Disclosed is a colored photosensitive resin composition comprising a dye, a photo acid generator, a curing agent, an alkali-soluble resin, a solvent, and a compound represented by the formula (I): in the formula (I), R1 to R3 each independently represents a hydrogen atom, a linear alkyl group having 1 to 6 carbon atoms, a branched alkyl group having 3 to 12 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms or an aryl group having 6 to 12 carbon atoms, and a hydrogen atom on the linear alkyl group having 1 to 6 carbon atoms, a hydrogen atom on the branched alkyl group having 3 to 12 carbon atoms, a hydrogen atom on the cycloalkyl group and a hydrogen atom on the aryl group may be substituted with a hydroxyl group, provided that at least one of R1 to R3 represents a group other than a hydrogen atom.
    Type: Application
    Filed: May 24, 2007
    Publication date: December 13, 2007
    Inventors: Yoshiko Miya, Kensaku Maeda, Masanori Harasawa, Yoichi Ootsuka