Patents by Inventor Akihiko Kojima

Akihiko Kojima 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: 20210062014
    Abstract: Provided is a conductor film obtainable using a carbon nanotube dispersion liquid. The carbon nanotube dispersion liquid contains carbon nanotubes (A), a polymeric dispersant (B) including a sulfonic acid group-containing monomeric unit and an ethylenically unsaturated aliphatic carboxylic acid monomeric unit, and a solvent (C). Percentage content of the ethylenically unsaturated aliphatic carboxylic acid monomeric unit in the polymeric dispersant (B) is greater than 20 mol % and no greater than 90 mol %.
    Type: Application
    Filed: November 12, 2020
    Publication date: March 4, 2021
    Applicant: ZEON CORPORATION
    Inventors: Akihiko YOSHIWARA, Kiyoshige KOJIMA, Yasuo MUKUNOKI, Akihiro KOJIMA, Masashi IKEGAMI
  • Patent number: 10870766
    Abstract: Provided is a carbon nanotube dispersion liquid that has excellent stability and that can be used to form a conductor film that exhibits excellent adhesiveness to a substrate. The carbon nanotube dispersion liquid contains carbon nanotubes (A), a polymeric dispersant (B) including a sulfonic acid group-containing monomeric unit and an ethylenically unsaturated aliphatic carboxylic acid monomeric unit, and a solvent (C). Percentage content of the ethylenically unsaturated aliphatic carboxylic acid monomeric unit in the polymeric dispersant (B) is greater than 20 mol % and no greater than 90 mol %.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: December 22, 2020
    Assignee: ZEON CORPORATION
    Inventors: Akihiko Yoshiwara, Kiyoshige Kojima, Yasuo Mukunoki, Akihiro Kojima, Masashi Ikegami
  • Patent number: 10825943
    Abstract: A concentrator photovoltaic module including: a concentrating portion formed by arranging a plurality of lens elements each configured to concentrate sunlight; and a housing configured to accommodate a plurality of power generating elements disposed at positions respectively corresponding to the lens elements, wherein the housing includes: a frame body formed from resin; and a bottom plate formed from metal, the bottom plate being mounted to the frame body and having the power generating elements mounted thereto, and the frame body includes: a frame body portion forming an outer frame; and a liner portion extending along an upper surface of the bottom plate at an inner side of the frame body portion, the liner portion having both end portions thereof formed integrally with the frame body portion.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: November 3, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kenji Saito, Youichi Nagai, Rui Mikami, Akihiko Kojima
  • Publication number: 20200274172
    Abstract: Provided is a method of producing a conductive film. The method comprises a step of performing gas phase treatment by ozone of carbon nanotubes having an average diameter Av of at least 0.5 nm and no greater than 15 nm, and the average diameter Av and a diameter standard deviation ? satisfying a relationship 0.60>(3?/Av)>0.20 to obtain surface treated carbon nanotubes, and a step of mixing the surface treated carbon nanotubes and Ketjen black to obtain a conductive film having a content ratio by mass of the surface treated carbon nanotubes to the Ketjen black of 5/5 to 9/1.
    Type: Application
    Filed: May 11, 2020
    Publication date: August 27, 2020
    Applicant: ZEON CORPORATION
    Inventors: Akihiko YOSHIWARA, Kiyoshige KOJIMA
  • Publication number: 20200248174
    Abstract: The invention provides a method of modifying a targeted site of a double stranded DNA, including a step of contacting a complex wherein a nucleic acid sequence-recognizing module that specifically binds to a target nucleotide sequence in a selected double stranded DNA and a nucleic acid base converting enzyme are linked, with the double stranded DNA, to convert one or more nucleotides in the targeted site to other one or more nucleotides or delete one or more nucleotides, or insert one or more nucleotides into the targeted site, without cleaving at least one strand of the double stranded DNA in the targeted site.
    Type: Application
    Filed: April 2, 2020
    Publication date: August 6, 2020
    Inventors: Keiji Nishida, Akihiko Kondo, Satomi Kojima
  • Publication number: 20200208138
    Abstract: The invention provides a method of modifying a targeted site of a double stranded DNA, including a step of contacting a complex wherein a nucleic acid sequence-recognizing module that specifically binds to a target nucleotide sequence in a selected double stranded DNA and a nucleic acid base converting enzyme are linked, with the double stranded DNA, to convert one or more nucleotides in the targeted site to other one or more nucleotides or delete one or more nucleotides, or insert one or more nucleotides into the targeted site, without cleaving at least one strand of the double stranded DNA in the targeted site.
    Type: Application
    Filed: February 14, 2020
    Publication date: July 2, 2020
    Inventors: Keiji Nishida, Akihiko Kondo, Satomi Kojima
  • Patent number: 10655123
    Abstract: The invention provides a method of modifying a targeted site of a double stranded DNA, including a step of contacting a complex wherein a nucleic acid sequence-recognizing module that specifically binds to a target nucleotide sequence in a selected double stranded DNA and a nucleic acid base converting enzyme are linked, with the double stranded DNA, to convert one or more nucleotides in the targeted site to other one or more nucleotides or delete one or more nucleotides, or insert one or more nucleotides into the targeted site, without cleaving at least one strand of the double stranded DNA in the targeted site.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: May 19, 2020
    Assignee: National University Corporation Kobe University
    Inventors: Keiji Nishida, Akihiko Kondo, Satomi Kojima
  • Patent number: 10500817
    Abstract: A steel for electron-beam welding according to the present invention includes at least C: 0.02% to 0.10%, Si: 0.03% to 0.30%, Mn: 1.5% to 2.5%, Ti: 0.005% to 0.015%, N: 0.0020% to 0.0060%, and O: 0.0010% to 0.0035%, further includes S: limited to 0.010% or less, P: limited to 0.015% or less, and Al: limited to 0.004% or less, with a balance including iron and inevitable impurities. An index value CeEBB obtained by substituting composition of the steel into following Formula 1 falls in the range of 0.42 to 0.65%, the number of oxide having an equivalent circle diameter of 1.0 ?m or more is 20 pieces/mm2 or less at a thickness center portion in cross section along the thickness direction of the steel, and the number of oxide containing Ti of 10% or more and having an equivalent circle diameter of not less than 0.05 ?m or more and less than 0.5 ?m falls in the range of 1×103 to 1×105 pieces/mm2 at the thickness center portion.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: December 10, 2019
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Ryuichi Honma, Ryuji Uemori, Tadashi Ishikawa, Akihiko Kojima, Manabu Hoshino
  • Publication number: 20190270919
    Abstract: The disclosure relates to a photocurable sealant composition comprising (A) a liquid rubber, (B) a (meth)acryloyl group-containing compound, (C) an aromatic sensitization aid capable of absorbing light having a wavelength of 300 nm or higher, and (D) a photopolymerization initiator. The disclosure also relates to an article selected from the group consisting of a solar cell, a display, an electronic component, a coating material and an adhesive, comprising a cured product of the photocurable sealant composition. The disclosure further relates to an organic solar cell wherein a light blocking member is disposed on a first surface of a first electrode substrate, and a sealant is positioned at least at a light blocking part on a side opposite to the light incident surface side, of the light blocking member.
    Type: Application
    Filed: March 21, 2017
    Publication date: September 5, 2019
    Applicant: ZEON CORPORATION
    Inventors: Akihiko YOSHIWARA, Kiyoshige KOJIMA, Takatoshi MATSUO
  • Patent number: 10389295
    Abstract: An enclosure for a concentrator photovoltaic device according to the present disclosure includes a side wall having an upper end, a lower end, an inner surface, and an outer surface, the side wall being composed of a resin, the side wall being provided with an air hole extending through the inner and outer surfaces of the side wall, the air hole being inclined from the inner surface of the side wall to the outer surface of the side wall in a direction from the upper end of the side wall toward the lower end of the side wall. According to the present disclosure, power generation efficiency of a photovoltaic module can be further increased, and the photovoltaic module can be suppressed from being decreased in performance due to entrance of undesired matters to inside of the case, such as dusts, water droplets, and foreign matters.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: August 20, 2019
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kenji Saito, Takashi Iwasaki, Youichi Nagai, Yoshiya Abiko, Akihiko Kojima, Makoto Inagaki
  • Publication number: 20190237606
    Abstract: A concentrator photovoltaic module including: a concentrating portion formed by arranging a plurality of lens elements each configured to concentrate sunlight; and a housing configured to accommodate a plurality of power generating elements disposed at positions respectively corresponding to the lens elements, wherein the housing includes: a frame body formed from resin; and a bottom plate formed from metal, the bottom plate being mounted to the frame body and having the power generating elements mounted thereto, and the frame body includes: a frame body portion forming an outer frame; and a liner portion extending along an upper surface of the bottom plate at an inner side of the frame body portion, the liner portion having both end portions thereof formed integrally with the frame body portion.
    Type: Application
    Filed: July 10, 2017
    Publication date: August 1, 2019
    Inventors: Kenji Saito, Youichi Nagai, Rui Mikami, Akihiko Kojima
  • Patent number: 10312852
    Abstract: A mounting structure of a housing 11 for a concentrator photovoltaic module 1M includes: a bottom plate 15 framed from an electric conductor and having a plurality of cells 12c arrayed thereat; a side wall frame 16 made of resin, the side wall frame 16 standing along the outer edge of the bottom plate 15 and configured to hold a concentrating portion 13 so as to face the bottom plate 15; a pair of the frames 8 (support member) each being a grounded electric conductor, the pair of the frames 8 configured to be in contact with the bottom plate 15 to support the module 1M; and bolts 25 and nuts 26, as a fastening member, configured to fasten the pair of the frames 8 and the bottom plate 15 to each other thereby to fix the module 1M to the pair of the frames 8, the bolts 25 and the nuts 26 each being an electric conductor thereby to serve as paths for electric connection from the bottom plate 15 to the pair of the frames 8.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: June 4, 2019
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Kenji Saito, Akihiko Kojima, Koji Mori, Tomohiro Nemoto, Youichi Nagai
  • Publication number: 20180234046
    Abstract: A mounting structure of a housing 11 for a concentrator photovoltaic module 1M includes: a bottom plate 15 framed from an electric conductor and having a plurality of cells 12c arrayed thereat; a side wall frame 16 made of resin, the side wall frame 16 standing along the outer edge of the bottom plate 15 and configured to hold a concentrating portion 13 so as to face the bottom plate 15; a pair of the frames 8 (support member) each being a grounded electric conductor, the pair of the frames 8 configured to be in contact with the bottom plate 15 to support the module 1M; and bolts 25 and nuts 26, as a fastening member, configured to fasten the pair of the frames 8 and the bottom plate 15 to each other thereby to fix the module 1M to the pair of the frames 8, the bolts 25 and the nuts 26 each being an electric conductor thereby to serve as paths for electric connection from the bottom plate 15 to the pair of the frames 8.
    Type: Application
    Filed: June 14, 2016
    Publication date: August 16, 2018
    Inventors: Kenji Saito, Akihiko Kojima, Koji Mori, Tomohiro Nemoto, Youichi Nagai
  • Publication number: 20180212557
    Abstract: An enclosure for a concentrator photovoltaic device according to the present disclosure includes a side wall having an upper end, a lower end, an inner surface, and an outer surface, the side wall being composed of a resin, the side wall being provided with an air hole extending through the inner and outer surfaces of the side wall, the air hole being inclined from the inner surface of the side wall to the outer surface of the side wall in a direction from the upper end of the side wall toward the lower end of the side wall. According to the present disclosure, power generation efficiency of a photovoltaic module can be further increased, and the photovoltaic module can be suppressed from being decreased in performance due to entrance of undesired matters to inside of the case, such as dusts, water droplets, and foreign matters.
    Type: Application
    Filed: September 30, 2016
    Publication date: July 26, 2018
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Kenji Saito, Takashi Iwasaki, Youichi Nagai, Yoshiya Abiko, Akihiko Kojima, Makoto Inagaki
  • Patent number: 9541400
    Abstract: A fiber optic gyroscope sensing coil, with which winding process of optical fiber may be simplified, crosstalk due to winding deficiencies may be reduced, and temperature sensitivity of gyroscope may be reduced. A coil body 13 includes two potted coils 12 having respective windings of optical fiber which are wound in an aligned winding configuration while the same tension is applied to optical fiber and at the same feed speed of optical fiber between the two potted coils and encapsulated within a potting material 16.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: January 10, 2017
    Assignee: TOKYO KEIKI INC.
    Inventors: Toyoori Yoshida, Takayuki Tamaki, Akihiko Kojima
  • Publication number: 20150185014
    Abstract: A fiber optic gyroscope sensing coil, with which winding process of optical fiber may be simplified, crosstalk due to winding deficiencies may be reduced, and temperature sensitivity of gyroscope may be reduced. A coil body 13 includes two potted coils 12 having respective windings of optical fiber which are wound in an aligned winding configuration while the same tension is applied to optical fiber and at the same feed speed of optical fiber between the two potted coils and encapsulated within a potting material 16.
    Type: Application
    Filed: June 12, 2012
    Publication date: July 2, 2015
    Applicant: TOKYO KEIKI INC.
    Inventors: Toyoori Yoshida, Takayuki Tamaki, Akihiko Kojima
  • Patent number: 8920713
    Abstract: A steel for a welded structure includes the following composition: by mass %, C at a C content [C] of 0.010 to 0.065%; Si at a Si content [Si] of 0.05 to 0.20%; Mn at a Mn content [Mn] of 1.52 to 2.70%; Ni at a Ni content [Ni] of 0.10% to 1.50%; Ti at a Ti content [Ti] of 0.005 to 0.015%; O at an O content [O] of 0.0010 to 0.0045%; N at a N content [N] of 0.002 to 0.006%; Mg at a Mg content [Mg] of 0.0003 to 0.003%; Ca at a Ca content [Ca] of 0.0003 to 0.003%; and the balance composed of Fe and unavoidable impurities. A steel component parameter PCTOD is 0.065% or less, and a steel component hardness parameter CeqH is 0.235% or less.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: December 30, 2014
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Yoshiyuki Watanabe, Kazuhiro Fukunaga, Akihiko Kojima, Ryuji Uemori, Rikio Chijiiwa
  • Patent number: 8668784
    Abstract: A steel for a welded structure includes the following composition: by mass %, C at a C content [C] of 0.015 to 0.045%; Si at a Si content [Si] of 0.05 to 0.20%; Mn at a Mn content [Mn] of 1.5 to 2.0%; Ni at a Ni content [Ni] of 0.10 to 1.50%; Ti at a Ti content [Ti] of 0.005 to 0.015%; O at an O content [O] of 0.0015 to 0.0035%; and N at a N content [N] of 0.002 to 0.006%, and a balance composed of Fe and unavoidable impurities. In the steel for a welded structure, the P content [P] is limited to 0.008% or less, the S content [S] is limited to 0.005% or less, the Al content [Al] is limited to 0.004% or less, the Nb content [Nb] is limited to 0.005% or less, the Cu content [Cu] is limited to 0.24% or less, the V content [V] is limited to 0.020% or less, and a steel composition parameter PCTOD is 0.065% or less, and a steel composition hardness parameter CeqH is 0.235% or less.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: March 11, 2014
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Yoshiyuki Watanabe, Kazuhiro Fukunaga, Akihiko Kojima, Ryuji Uemori, Rikio Chijiiwa
  • Publication number: 20140065008
    Abstract: A steel for a welded structure includes the following composition: by mass %, C at a C content [C] of 0.015 to 0.045%; Si at a Si content [Si] of 0.05 to 0.20%; Mn at a Mn content [Mn] of 1.5 to 2.0%; Ni at a Ni content [Ni] of 0.10 to 1.50%; Ti at a Ti content [Ti] of 0.005 to 0.015%; O at an O content [O] of 0.0015 to 0.0035%; and N at a N content [N] of 0.002 to 0.006%, and a balance composed of Fe and unavoidable impurities. In the steel for a welded structure, the P content [P] is limited to 0.008% or less, the S content [S] is limited to 0.005% or less, the Al content [Al] is limited to 0.004% or less, the Nb content [Nb] is limited to 0.005% or less, the Cu content [Cu] is limited to 0.24% or less, the V content [V] is limited to 0.020% or less, and a steel composition parameter PCTOD is 0.065% or less, and a steel composition hardness parameter CeqH is 0.235% or less.
    Type: Application
    Filed: November 8, 2013
    Publication date: March 6, 2014
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Yoshiyuki WATANABE, Kazuhiro FUKUNAGA, Akihiko KOJIMA, Ryuji UEMORI, Rikio CHIJIIWA
  • Patent number: D864853
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: October 29, 2019
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kenji Saito, Youichi Nagai, Akihiko Kojima, Takashi Iwasaki, Yoshiya Abiko, Makoto Inagaki