Patents by Inventor Masako Yamashita

Masako Yamashita 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: 10570240
    Abstract: Provided are an active energy ray-curable composition that has good antistatic properties, scratch resistance, and transparency after curing, and an antistatic film using the same. The active energy ray-curable composition of the present invention is an active energy ray-curable composition, including a photopolymerization initiator A represented by the following Formula (I), an antistatic polymer B, and a polymerizable compound C containing an ethylenically unsaturated group, in Formula (I), V1, V2, V3, and V4 each independently represent a hydrogen atom or a substituent, and n represents an integer of 1 to 5.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: February 25, 2020
    Assignee: FUJIFILM Corporation
    Inventor: Masako Yamashita
  • Publication number: 20180148519
    Abstract: An object of the present invention is to provide a photopolymerization initiator composition, which exhibits excellent storage stability at a low temperature and has an excellent effect of inhibiting bleed out occurring on the surface of a cured product after the thermocycling test, an active energy ray-curable composition, and a cured product. The photopolymerization initiator composition of the present invention contains a photopolymerization initiator represented by General Formula (I) and at least one kind of additive selected from the group consisting of compounds represented by General Formulae (II) to (IV).
    Type: Application
    Filed: January 25, 2018
    Publication date: May 31, 2018
    Applicant: FUJIFILM Corporation
    Inventor: Masako YAMASHITA
  • Patent number: 9914788
    Abstract: Provided are an active energy ray-curable composition that has good antistatic properties, scratch resistance, and transparency after curing, and an antistatic film using the same. The active energy ray-curable composition of the present invention is an active energy ray-curable composition, including a photopolymerization initiator A represented by the following Formula (I) and an antistatic compound B, in Formula (I), V1, V2, V3, and V4 each independently represent a hydrogen atom or a substituent, and n represents an integer of 1 to 5.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: March 13, 2018
    Assignee: FUJIFILM Corporation
    Inventor: Masako Yamashita
  • Publication number: 20170198063
    Abstract: Provided are an active energy ray-curable composition that has good antistatic properties, scratch resistance, and transparency after curing, and an antistatic film using the same. The active energy ray-curable composition of the present invention is an active energy ray-curable composition, including a photopolymerization initiator A represented by the following Formula (I) and an antistatic compound B, in Formula (I), V1, V2, V3, and V4 each independently represent a hydrogen atom or a substituent, and n represents an integer of 1 to 5.
    Type: Application
    Filed: March 24, 2017
    Publication date: July 13, 2017
    Applicant: FUJIFILM Corporation
    Inventor: Masako YAMASHITA
  • Publication number: 20170190825
    Abstract: Provided are an active energy ray-curable composition that has good antistatic properties, scratch resistance, and transparency after curing, and an antistatic film using the same. The active energy ray-curable composition of the present invention is an active energy ray-curable composition, including a photopolymerization initiator A represented by the following Formula (I), an antistatic polymer B, and a polymerizable compound C containing an ethylenically unsaturated group, in Formula (I), V1, V2, V3, and V4 each independently represent a hydrogen atom or a substituent, and n represents an integer of 1 to 5.
    Type: Application
    Filed: March 21, 2017
    Publication date: July 6, 2017
    Applicant: FUJIFILM Corporation
    Inventor: Masako YAMASHITA
  • Publication number: 20090311494
    Abstract: A relief printing plate precursor for laser engraving, including a relief forming layer containing (A) a polymerizable compound having an ethylenic unsaturated bond, (B) a binder polymer, and (C) a compound having deodorizing ability.
    Type: Application
    Filed: June 2, 2009
    Publication date: December 17, 2009
    Applicant: FUJIFILM CORPORATION
    Inventors: Masako YAMASHITA, Atsushi SUGASAKI
  • Patent number: 7368497
    Abstract: A resin composition which can be used to form a prepreg having sufficient flexibility to prevent cracking from occurring therein is provided. Further, a prepreg having sufficient flexibility to prevent cracking from occurring, a prepreg having excellent workability even in the case where the resin composition in the prepreg is in an uncured state, and a laminate provided with such a prepreg are also provided. The resin composition is used to form a sheet-shaped prepreg by impregnating a base material with the resin composition, and the composition comprises a first thermosetting resin, a second thermosetting resin having a lower weight average molecular weight than that of the first thermosetting resin, a curing agent, and a filler. The prepreg is formed by impregnating a base sheet material with the resin composition described above. The laminate is formed by laminating a metallic foil on the prepreg and then molding them by heating under pressure.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: May 6, 2008
    Assignee: Sumitomo Bakelite Company, Ltd.
    Inventors: Takeshi Hosomi, Masako Yamashita, Takayuki Baba, Kentaro Yabuki
  • Publication number: 20040234741
    Abstract: A resin composition which can be used to form a prepreg having sufficient flexibility to prevent cracking from occurring therein is provided. Further, a prepreg having sufficient flexibility to prevent cracking from occurring, a prepreg having excellent workability even in the case where the resin composition in the prepreg is in an uncured state, and a laminate provided with such a prepreg are also provided. The resin composition is used to form a sheet-shaped prepreg by impregnating a base material with the resin composition, and the composition comprises a first thermosetting resin, a second thermosetting resin having a lower weight average molecular weight than that of the first thermosetting resin, a curing agent, and a filler. The prepreg is formed by impregnating a base sheet material with the resin composition described above. The laminate is formed by laminating a metallic foil on the prepreg and then molding them by heating under pressure.
    Type: Application
    Filed: February 27, 2004
    Publication date: November 25, 2004
    Applicant: SUMITOMO BAKELITE COMPANY LIMITED
    Inventors: Takeshi Hosomi, Masako Yamashita, Takayuki Baba, Kentaro Yabuki