Patents by Inventor Shota Okade

Shota Okade 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).

  • Patent number: 10564543
    Abstract: A photosensitive resin composition includes (A) a binder polymer having a structural unit derived from a hydroxyalkyl (meth)acrylate ester having a hydroxyalkyl group having from 1 to 12 carbon atoms, and a structural unit derived from a (meth)acrylic acid; (B) a photopolymerizable compound having an ethylenically unsaturated bond group; (C) a photopolymerization initiator; and (D) a styryl pyridine represented by the Formula (1). In Formula (1), each of R1, R2 and R3 independently represents an alkyl group having from 1 to 20 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, an alkyl ester group having from 1 to 6 carbon atoms, an amino group, an alkyl amino group having from 1 to 20 carbon atoms, a carboxy group, a ciano group, a nitro group, an acetyl group or a (meth)acryloyl group, each of a, b and c independently represents an integer of from 0 to 5. In a case in which each of a, b and c is independently 2 or more, the plural R1s, R2s, and R3s independently may be the same or different.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: February 18, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Shota Okade, Yukiko Muramatsu, Emiko Oota, Ken Sawabe, Sanchoru Ri
  • Patent number: 10104781
    Abstract: A photosensitive resin composition includes a binder polymer, a photopolymerizable compound, and a photopolymerization initiator. The binder polymer has a structural unit derived from a (meth)acrylic acid, a structural unit derived from styrene or ?-methylstyrene, and a structural unit derived from a hydroxyalkyl (meth)acrylate ester having a hydroxyalkyl group having from 1 to 12 carbon atoms. The photopolymerizable compound include a bisphenolic di(meth)acrylate having from 1 to 20 structural units of an ethyleneoxy group and having from 0 to 7 structural units of a propyleneoxy group.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: October 16, 2018
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Shota Okade, Masahiro Miyasaka, Yukiko Muramatsu
  • Publication number: 20170261851
    Abstract: A photosensitive res in composition includes (A) a binder polymer having a structural unit derived from a hydroxyalkyl (meth)acrylate ester having a hydroxyalkyl group having from 1 to 12 carbon atoms, and a structural unit derived from a (meth)acrylic acid; (B) a photopolymerizable compound having an ethylenically unsaturated bond group; (C) a photopolymerization initiator; and (D) a styryl pyridine represented by the Formula (1). In Formula (1), each of R1, R2 and R3 independently represents an alkyl group having from 1 to 20 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, an alkyl ester group having from 1 to 6 carbon atoms, an amino group, an alkyl amino group having from 1 to 20 carbon atoms, a carboxy group, a ciano group, a nitro group, an acetyl group or a (meth)acryloyl group, each of a, b and c independently represents an integer of from 0 to 5. In a case in which each of a, b and c is independently 2 or more, the plural R1s, R2s, and R3s independently may be the same or different.
    Type: Application
    Filed: September 14, 2015
    Publication date: September 14, 2017
    Inventors: Shota OKADE, Yukiko MURAMATSU, Emiko OOTA, Ken SAWABE, Sanchoru RI
  • Publication number: 20160330845
    Abstract: A photosensitive resin composition includes a binder polymer, a photopolymerizable compound, and a photopolymerization initiator. The binder polymer has a structural unit derived from a (meth)acrylic acid, a structural unit derived from styrene or ?-methylstyrene, and a structural unit derived from a hydroxyalkyl (meth)acrylate ester having a hydroxyalkyl group having from 1 to 12 carbon atoms. The photopolymerizable compound include a bisphenolic di(meth)acrylate having from 1 to 20 structural units of an ethyleneoxy group and having from 0 to 7 structural units of a propyleneoxy group.
    Type: Application
    Filed: December 22, 2014
    Publication date: November 10, 2016
    Inventors: Shota OKADE, Masahiro MIYASAKA, Yukiko MURAMATSU
  • Publication number: 20150293443
    Abstract: The invention provides a photosensitive resin that includes: a binder polymer that has a structural unit derived from (meth)acrylic acid, a structural unit derived from styrene or ?-methyl styrene, and a structural unit derived from benzyl (meth)acrylate; a photopolymerizable compound including a first bisphenol di(meth)acrylate that has an ethyleneoxy group and a propyleneoxy group, in which a number of structural units of the ethyleneoxy group is from 1 to 20 and a number of structural units of the propyleneoxy group is from 2 to 7, and in which a total number of structural units of the ethyleneoxy group and the propyleneoxy group is more than 10; and a photopolymerization initiator.
    Type: Application
    Filed: November 14, 2013
    Publication date: October 15, 2015
    Applicant: Hitachi Chemical Company, Ltd.
    Inventors: Shota Okade, Masahiro Miyasaka, Yukiko Muramatsu