Patents by Inventor Fumiko Ikegami

Fumiko Ikegami 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).

  • Photosensitive composition and color filter
    Patent number: 7220534
    Abstract: A photosensitive composition contains a photosensitive resin and a colorant. The photosensitive resin includes (A) a copolymer of (a1) at least one first polymerizable monomer containing 2 to 6 hydroxyl groups with (a2) at least one second polymerizable monomer other than the first polymerizable monomer, and (B) at least one compound (B) containing an ethylenically unsaturated double bond and a functional group capable of reacting with hydroxyl group. The compound (B) has been reacted with the copolymer (A). A color filter has at least one filter segment formed using the photosensitive composition.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: May 22, 2007
    Assignees: Toyo Ink Mfg. Co., Ltd., Toppan Printing Co., Ltd.
    Inventors: Fumiko Ikegami, Mie Shimizu, Takeshi Itoi
  • Photosensitive composition and color filter
    Publication number: 20050112501
    Abstract: A photosensitive composition contains a photosensitive resin and a colorant. The photosensitive resin includes (A) a copolymer of (a1) at least one first polymerizable monomer containing 2 to 6 hydroxyl groups with (a2) at least one second polymerizable monomer other than the first polymerizable monomer, and (B) at least one compound (B) containing an ethylenically unsaturated double bond and a functional group capable of reacting with hydroxyl group. The compound (B) has been reacted with the copolymer (A). A color filter has at least one filter segment formed using the photosensitive composition.
    Type: Application
    Filed: November 24, 2004
    Publication date: May 26, 2005
    Applicants: TOYO INK MFG. CO., LTD., TOPPAN PRINTING CO., LTD.
    Inventors: Fumiko Ikegami, Mie Shimizu, Takeshi Itoi