Patents by Inventor Maki OBA

Maki OBA 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).

  • Copolymer, organic semiconductor material, organic electrical device, photovoltaic module
    Patent number: 9249257
    Abstract: A copolymer containing a repeating unit having a dioxopyrrole condensed ring skeleton and a repeating unit having a dithieno condensed ring skeleton and also having a specific substituent is provided.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: February 2, 2016
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Junya Kawai, Rieko Fujita, Wataru Sato, Mitsunori Furuya, Kenichi Satake, Maki Oba
  • Copolymer, organic semiconductor material, organic electrical device, photovoltaic module
    Patent number: 9212254
    Abstract: A copolymer containing a repeating unit having a dioxopyrrole condensed ring skeleton and a repeating unit having a dithieno condensed ring skeleton and also having a specific substituent is provided.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: December 15, 2015
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Junya Kawai, Rieko Fujita, Wataru Sato, Mitsunori Furuya, Kenichi Satake, Maki Oba
  • COPOLYMER, ORGANIC SEMICONDUCTOR MATERIAL, ORGANIC ELECTRICAL DEVICE, AND PHOTOVOLTAIC MODULE
    Publication number: 20150094436
    Abstract: A copolymer containing a repeating unit having a dioxopyrrole condensed ring skeleton and a repeating unit having a dithieno condensed ring skeleton and also having a specific substituent is provided.
    Type: Application
    Filed: December 1, 2014
    Publication date: April 2, 2015
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Junya KAWAI, Rieko FUJITA, Wataru SATO, Mitsunori FURUYA, Kenichi SATAKE, Maki OBA