Patents by Inventor Yasumi Wanibe

Yasumi Wanibe 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).

  • Radiation sensitive composition for color filters
    Patent number: 5866298
    Abstract: A radiation sensitive composition for color filters comprising (A) a colorant, (B) a binder polymer, (C) a poly-functional monomer, (D) a photopolymerization initiator containing at least one biimidazole compound typified by 2,2'-bis(2-chlorophenyl)-4,4',5,5'-tetrakis(4-ethoxycarbonylphenyl)-biimid azole and 2,2'-bis(2,4-dichlorophenyl)-4,4',5,5'-tetraphenylbiimidazole, and (E) a solvent. The composition can be used for the manufacture of color filters exhibiting excellent photographic sensitivity and superior contrast, while effectively controlling production of residual insoluble material during development process.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: February 2, 1999
    Assignee: Japan Synthetic Rubber Co., Ltd.
    Inventors: Satoshi Iwamoto, Yasumi Wanibe, Hiroaki Nemoto, Nobuo Bessho