Patents by Inventor Masahiro Kuzawa

Masahiro Kuzawa 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: 20210208503
    Abstract: To provide a negative type photosensitive composition curable at a low temperature and capable of forming a cured film excellent in transparency, in chemical resistance and in environmental durability, and also to provide a pattern-formation method employing the composition. [Means] The present invention provides a negative type photosensitive composition comprising: an alkali-soluble resin, a compound having two or more (meth)acryloyloxy groups, a polysiloxane, a polymerization initiator, and a solvent. The alkali-soluble resin is a polymer comprising a carboxyl-containing polymerization unit and an alkoxysilyl-containing polymerization unit.
    Type: Application
    Filed: January 20, 2017
    Publication date: July 8, 2021
    Inventors: Motoki MISUMI, Daishi YOKOYAMA, Katsuto TANIGUCHI, Masahiro KUZAWA
  • Publication number: 20200301277
    Abstract: [Object] To provide a negative type photosensitive composition developable with a low concentration alkali developer and capable of forming a cured film excellent in transparency, in chemical resistance and in environmental durability; and further to provide a pattern-formation method employing the composition. [Means] The present invention provides a negative type photosensitive composition comprising: (I) an alkali-soluble resin, namely, a polymer comprising a carboxyl-containing polymerization unit and an alkoxysilyl-containing polymerization unit, (II) a polysiloxane, (III) a compound having two or more (meth)acryloyloxy groups, (IV) (i) a silicone derivative having a particular structure and/or (ii) a compound having two or more epoxy groups, (V) a polymerization initiator, and (VI) a solvent.
    Type: Application
    Filed: March 27, 2017
    Publication date: September 24, 2020
    Inventors: MOTOKI MISUMI, Daishi YOKOYAMA, Katsuto TANIGUCHI, Masahiro KUZAWA
  • Publication number: 20200201179
    Abstract: [Object] To provide a composition capable of forming a cured film having low permittivity and excellence in chemical resistance, in heat resistance and in resolution; and further to provide a production process employing the composition. [Means] The present invention provides a composition comprising: an alkali-soluble resin, namely, a polymer comprising a carboxyl-containing polymerization unit and an alkoxysilyl-containing polymerization unit; a polysiloxane; a diazonaphthoquinone derivative a compound generating acid or base when exposed to heat or light; and a solvent.
    Type: Application
    Filed: March 2, 2020
    Publication date: June 25, 2020
    Inventors: MEGUMI TAKAHASHI, Daishi Yokoyama, Naofumi Yoshida, Katsuto Taniguchi, Masahiro Kuzawa
  • Patent number: 10606173
    Abstract: [Object] To provide a composition capable of forming a cured film having low permittivity and excellence in chemical resistance, in heat resistance and in resolution; and further to provide a production process employing the composition. [Means] The present invention provides a composition comprising: an alkali-soluble resin, namely, a polymer comprising a carboxyl-containing polymerization unit and an alkoxysilyl-containing polymerization unit; a polysiloxane; a diazonaphthoquinone derivative; a compound generating acid or base when exposed to heat or light; and a solvent.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: March 31, 2020
    Assignee: AZ Electronic Materials (Luxembourg) S.a.r.l.
    Inventors: Megumi Takahashi, Daishi Yokoyama, Naofumi Yoshida, Katsuto Taniguchi, Masahiro Kuzawa
  • Publication number: 20190077961
    Abstract: [Object] To provide a composition capable of forming a cured film having low permittivity and excellence in chemical resistance, in heat resistance and in resolution; and further to provide a production process employing the composition. [Means] The present invention provides a composition comprising: an alkali-soluble resin, namely, a polymer comprising a carboxyl-containing polymerization unit and an alkoxysilyl-containing polymerization unit; a polysiloxane; a diazonaphthoquinone derivative; a compound generating acid or base when exposed to heat or light; and a solvent.
    Type: Application
    Filed: March 23, 2017
    Publication date: March 14, 2019
    Inventors: MEGUMI TAKAHASHI, Daishi YOKOYAMA, Naofumi YOSHIDA, Katsuto TANIGUCHI, Masahiro KUZAWA
  • Publication number: 20110173807
    Abstract: It is provided a dispersion for positioning and adhering fine particles at predetermined positions on a substrate upon heating by ink jet printing. The dispersion comprises spacers, a solvent and an adhesive additive. The adhesive additive has an average molecular weight (Mw) of 3600 or lower and a property of forming a polymer upon heating.
    Type: Application
    Filed: September 25, 2009
    Publication date: July 21, 2011
    Applicant: NATOCO CO., LTD.
    Inventors: Masahiro Kuzawa, Katsumi Hara, Michio Doi, Hideaki Kato