Patents by Inventor Mamiko Takahara

Mamiko Takahara 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: 20130012655
    Abstract: The present invention provides a conductive polymer in which, when being formed into a coating film, foreign materials are difficult to be generated even the passage of time and a quality control method for a conductive polymer and has a repeating unit which is represented by the following general formula (1). The present invention also provides a quality control method for conductive polymers wherein conductive polymers with an area ratio (Y/X) of 0.60 or less are selected. In the formula R1 to R4 are each independently —H, a linear or branched alkyl group having 1 to 24 carbon atoms, a linear or branched alkoxy group having 1 to 24 carbon atoms, an acidic group, a hydroxyl group, a nitro group, —F, —Cl, —Br or —I; and at least one of R1 to R4 is an acidic group or a salt thereof.
    Type: Application
    Filed: March 23, 2011
    Publication date: January 10, 2013
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Takahiro Sakai, Tamae Takagi, Akira Yamakazi, Yasushi Horiuchi, Mamiko Takahara, Masaki Nakayama, Manabu Hoshino, Hiroaki Iriyama, Fumino Momose