Patents by Inventor Takashi Iizumi

Takashi Iizumi 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: 11914248
    Abstract: An object of the invention is to provide a photo-alignment copolymer which makes it possible to produce a photo-alignment film having excellent solvent resistance and liquid crystal aligning properties, and a photo-alignment film and an optical laminate produced using the photo-alignment copolymer. A photo-alignment copolymer of the invention is a photo-alignment copolymer having a repeating unit A including a photo-alignment group represented by Formula (A) and a repeating unit B including a crosslinkable group represented by Formula (B).
    Type: Grant
    Filed: November 8, 2020
    Date of Patent: February 27, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Yutaka Nozoe, Takashi Iizumi, Kazushige Nakagawa, Takahiro Kato, Miho Asahi, Hirofumi Omura, Yuki Hirai
  • Patent number: 11827727
    Abstract: A photo-alignment polymer has a repeating unit represented by Formula (1), in Formula (1), R1 represents a hydrogen atom or a substituent, X represents —O—, —S—, or —NR2—, in which R2 represents a hydrogen atom or a substituent, L1 represents a single bond or a divalent linking group, P represents a photo-aligned group, and A represents an acid-cleavage group which is decomposed by an action of acid to produce a polar group
    Type: Grant
    Filed: November 15, 2022
    Date of Patent: November 28, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Soichiro Watanabe, Yutaka Nozoe, Takashi Iizumi, Akio Tamura, Tomoaki Yokota, Keisuke Yoshimasa, Ayako Matsumoto
  • Patent number: 11692050
    Abstract: An object of the invention is to provide a photo-alignment copolymer capable of improving upper layer coatability after layer formation, a binder composition, a binder layer, an optical laminate, and an image display device. A photo-alignment copolymer according to the embodiment of the invention has a repeating unit A including a photo-alignment group, a repeating unit B including a crosslinkable group which causes a crosslinking reaction by the action of at least one selected from the group consisting of light, heat, an acid, and a base, and a repeating unit C including a cleaving group which decomposes by the action of at least one selected from the group consisting of light, heat, an acid, and a base to produce a polar group, and the repeating unit C has the cleaving group on a side chain, and has a group of atoms which is provided on a side closer to a terminal than the cleaving group on the side chain to be able to unevenly distribute the photo-alignment copolymer on an air interface side.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: July 4, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Yutaka Nozoe, Takashi Iizumi, Soichiro Watanabe, Hideyuki Nishikawa, Kazushige Nakagawa, Kunihiro Atsumi
  • Publication number: 20230167216
    Abstract: A photo-alignment polymer has a repeating unit represented by Formula (1), in Formula (1), R1 represents a hydrogen atom or a substituent, X represents —O—, —S—, or —NR2—, in which R2 represents a hydrogen atom or a substituent, L1 represents a single bond or a divalent linking group, P represents a photo-aligned group, and A represents an acid-cleavage group which is decomposed by an action of acid to produce a polar group
    Type: Application
    Filed: November 15, 2022
    Publication date: June 1, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Soichiro WATANABE, Yutaka NOZOE, Takashi IIZUMI, Akio TAMURA, Tomoaki YOKOTA, Keisuke YOSHIMASA, Ayako MATSUMOTO
  • Publication number: 20230138456
    Abstract: An object of the present invention is to provide a binder composition in which air unevenness is suppressed and which has excellent upper layer coating properties after being formed as a layer, a compound, a binder layer, an optical laminate, an optical laminate manufacturing method, and an image display device. The binder composition of the present invention is a binder composition containing a binder and a compound having a group represented by Formula (B1) or (B2). In Formulae (B1) and (B2), Z represents an aliphatic hydrocarbon group having a fluorine atom or an organosiloxane group.
    Type: Application
    Filed: December 28, 2022
    Publication date: May 4, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Takashi IIZUMI, Soichiro WATANABE, Yutaka NOZOE, Kazushige NAKAGAWA, Kunihiro ATSUMI
  • Publication number: 20230088847
    Abstract: An object of the present invention is to provide an optical laminate in which an optically anisotropic layer provided as an upper layer has good liquid crystal alignment properties, and a polarizing plate and an image display device using the optical laminate. An optical laminate of the present invention is an optical laminate including: a first optically anisotropic layer; and a second optically anisotropic layer, in which the first and second optically anisotropic layers are directly laminated, each of the first and second optically anisotropic layers consists of a liquid crystal layer, and a photo-alignment polymer having a photo-alignment group and at least one type of polar group selected from the group consisting of a hydroxyl group and a ketone group is present in a surface of the second optically anisotropic layer on a side in contact with the first optically anisotropic layer.
    Type: Application
    Filed: August 16, 2022
    Publication date: March 23, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Kunihiro ATSUMI, Kazushige NAKAGAWA, Yutaka NOZOE, Takashi IIZUMI, Soichiro WATANABE
  • Publication number: 20220179250
    Abstract: The present invention provides a photo-alignment polymer having excellent liquid crystal aligning properties, a binder composition, a binder layer, an optical laminate, an optical laminate manufacturing method, and an image display device. A photo-alignment polymer according to the embodiment of the present invention has a repeating unit having a photo-alignment group and a repeating unit having a group represented by Formula (1).
    Type: Application
    Filed: February 22, 2022
    Publication date: June 9, 2022
    Applicant: FUJIFILM Corporation
    Inventors: Takashi IIZUMI, Soichiro WATANABE, Yutaka NOZOE, Kunihiro ATSUMI
  • Patent number: 11319393
    Abstract: An object of the present invention is to provide a photo-alignable polymer which has excellent coating properties, is capable of suppressing film thickness unevenness, and has excellent upper layer coating properties and good liquid crystal alignment properties after being formed as a layer; a binder composition; a binder layer; an optical laminate; a method for producing an optical laminate; and an image display device. The photo-alignable polymer of an embodiment of the present invention is a photo-alignable polymer having a repeating unit A including a cleavage group capable of decomposing by an action of at least one selected from the group consisting of light, heat, an acid, and a base to generate a polar group, in which the repeating unit A has the cleavage group in a side chain, has a fluorine atom or a silicon atom on a side closer to a terminal than the cleavage group in the side chain, and the photo-alignable polymer satisfies Condition 1 or Condition 2 shown below.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: May 3, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Akio Tamura, Reiko Inushima, Takashi Iizumi, Yutaka Nozoe, Hideyuki Nishikawa, Kazushige Nakagawa, Kunihiro Atsumi
  • Publication number: 20210292456
    Abstract: An object of the invention is to provide a photo-alignment copolymer capable of improving upper layer coatability after layer formation, a binder composition, a binder layer, an optical laminate, and an image display device. A photo-alignment copolymer according to the embodiment of the invention has a repeating unit A including a photo-alignment group, a repeating unit B including a crosslinkable group which causes a crosslinking reaction by the action of at least one selected from the group consisting of light, heat, an acid, and a base, and a repeating unit C including a cleaving group which decomposes by the action of at least one selected from the group consisting of light, heat, an acid, and a base to produce a polar group, and the repeating unit C has the cleaving group on a side chain, and has a group of atoms which is provided on a side closer to a terminal than the cleaving group on the side chain to be able to unevenly distribute the photo-alignment copolymer on an air interface side.
    Type: Application
    Filed: May 27, 2021
    Publication date: September 23, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Yutaka NOZOE, Takashi IIZUMI, Soichiro WATANABE, Hideyuki NISHIKAWA, Kazushige NAKAGAWA, Kunihiro ATSUMI
  • Publication number: 20210063825
    Abstract: An object of the invention is to provide a photo-alignment copolymer which makes it possible to produce a photo-alignment film having excellent solvent resistance and liquid crystal aligning properties, and a photo-alignment film and an optical laminate produced using the photo-alignment copolymer. A photo-alignment copolymer of the invention is a photo-alignment copolymer having a repeating unit A including a photo-alignment group represented by Formula (A) and a repeating unit B including a crosslinkable group represented by Formula (B).
    Type: Application
    Filed: November 8, 2020
    Publication date: March 4, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Yutaka NOZOE, Takashi IIZUMI, Kazushige NAKAGAWA, Takahiro KATO, Miho ASAHI, Hirofumi OMURA, Yuki HIRAI
  • Patent number: 10662332
    Abstract: Provided are a compound represented by any one of Formulae (1) to (3) described in the specification, a coloring composition for dyeing or textile printing including the compound, an ink for ink jet textile printing, a method of printing on fabric, and a dyed or printed fabric.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: May 26, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Takashi Iizumi, Kazunari Yagi, Keiichi Tateishi
  • Publication number: 20200079885
    Abstract: An object of the present invention is to provide a photo-alignable polymer which has excellent coating properties, is capable of suppressing film thickness unevenness, and has excellent upper layer coating properties and good liquid crystal alignment properties after being formed as a layer; a binder composition; a binder layer; an optical laminate; a method for producing an optical laminate; and an image display device. The photo-alignable polymer of an embodiment of the present invention is a photo-alignable polymer having a repeating unit A including a cleavage group capable of decomposing by an action of at least one selected from the group consisting of light, heat, an acid, and a base to generate a polar group, in which the repeating unit A has the cleavage group in a side chain, has a fluorine atom or a silicon atom on a side closer to a terminal than the cleavage group in the side chain, and the photo-alignable polymer satisfies Condition 1 or Condition 2 shown below.
    Type: Application
    Filed: November 13, 2019
    Publication date: March 12, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Akio TAMURA, Reiko INUSHIMA, Takashi IIZUMI, Yutaka NOZOE, Hideyuki NISHIKAWA, Kazushige NAKAGAWA, Kunihiro ATSUMI
  • Publication number: 20200004087
    Abstract: A photo-alignment copolymer has a repeating unit A including a photo-alignment group represented by Formula (1), and a repeating unit B including a crosslinkable group represented by Formula (2), a photo-alignment film is formed using a photo-alignment film composition containing the photo-alignment copolymer, an optical laminate has the photo-alignment film and an optically anisotropic layer, and an image display device has the optical laminate.
    Type: Application
    Filed: September 3, 2019
    Publication date: January 2, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Yutaka NOZOE, Takashi IIZUMI, Takahiro KATO
  • Patent number: 10487210
    Abstract: Provided are: a coloring composition for dyeing including a compound represented by Formula (1) shown in this specification or a salt thereof; a coloring composition for textile printing in which the coloring composition for dyeing is used for textile printing; a compound which is preferable as a material of the coloring compositions; a textile printing method in which the above-described coloring composition for textile printing is used; an ink for ink jet textile printing including the above-described coloring composition for textile printing; and a dyed fabric.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: November 26, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Kazunari Yagi, Keiichi Tateishi, Takashi Iizumi, Akihiro Hakamata, Yoshihiko Fujie
  • Publication number: 20180208773
    Abstract: Provided are a compound represented by any one of Formulae (1) to (3) described in the specification, a coloring composition for dyeing or textile printing including the compound, an ink for ink jet textile printing, a method of printing on fabric, and a dyed or printed fabric.
    Type: Application
    Filed: March 23, 2018
    Publication date: July 26, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Takashi IIZUMI, Kazunari YAGI, Keiichi TATEISHI
  • Publication number: 20180208772
    Abstract: Provided are a compound represented by any one of Formulae (1) to (3) described in the specification, a coloring composition for dyeing or textile printing including the compound, an ink for ink jet textile printing, a method of printing on fabric, and a dyed or printed fabric.
    Type: Application
    Filed: March 22, 2018
    Publication date: July 26, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Takashi IIZUMI, Kazunari YAGI, Keiichi TATEISHI
  • Publication number: 20170247544
    Abstract: Provided are: a coloring composition for dyeing including a compound represented by Formula (1) shown in this specification or a salt thereof; a coloring composition for textile printing in which the coloring composition for dyeing is used for textile printing; a compound which is preferable as a material of the coloring compositions; a textile printing method in which the above-described coloring composition for textile printing is used; an ink for ink jet textile printing including the above-described coloring composition for textile printing; and a dyed fabric.
    Type: Application
    Filed: May 11, 2017
    Publication date: August 31, 2017
    Applicant: FUJIFILM Corporation
    Inventors: Kazunari YAGI, Keiichi TATEISHI, Takashi IIZUMI, Akihiro HAKAMATA, Yoshihiko FUJIE
  • Publication number: 20170101533
    Abstract: Provided are a compound represented by any one of Formulae (1) to (3) (for example, the following compound), a coloring composition for dyeing or textile printing including the compound, an ink jet ink including the coloring composition for dyeing or textile printing, a method of printing on fabric, and a dyed or printed fabric, in which the color is excellent, the color optical density is high, and light fastness, water fastness, and chlorine fastness are excellent.
    Type: Application
    Filed: December 20, 2016
    Publication date: April 13, 2017
    Applicant: FUJIFILM Corporation
    Inventors: Kazunari YAGI, Hiromi KOBAYASHI, Takashi IIZUMI, Yoshiaki NAGATA, Keiichi TATEISHI, Kazushi FURUKAWA
  • Publication number: 20140084578
    Abstract: There is provided a compound represented by the following formula (1): wherein each of R1a to R1k independently represents a hydrogen atom or a monovalent substituent, the substituents may combine with each other to form a ring, each of M1a and M1b independently represents a hydrogen atom or a monovalent counter cation, Y1 represents a nitrogen atom or a carbon atom having a hydrogen atom or monovalent substituent, A1 represents an aromatic group, and the aromatic group represented by A1 may contain a heteroatom or may have a substituent.
    Type: Application
    Filed: September 25, 2013
    Publication date: March 27, 2014
    Applicant: FUJIFILM Corporation
    Inventors: Kazunari YAGI, Shinya HAYASHI, Yutaro NORIZUKI, Takashi IIZUMI, Ichiro AMASAKI, Hiroshi YAMADA, Shigeaki TANAKA
  • Patent number: 8666165
    Abstract: An object of the present invention is to provide a scanning electron microscope for reducing a process concerning inspection positioning or an input operation, thereby functioning with high precision at high speed. To accomplish the above object, the present invention provides a scanning electron microscope having a function for identifying a desired position on the basis of a pattern registered beforehand, which includes a means for setting information concerning the pattern kind, the interval between a plurality of parts constituting the pattern, and the size of parts constituting the pattern and a means for forming a pattern image composed of a plurality of parts on the basis of the information obtained by the concerned means.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: March 4, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Satoru Yamaguchi, Takashi Iizumi, Osamu Komuro, Hidetoshi Morokuma, Tatsuya Maeda, Juntaro Arima, Yasuhiko Ozawa