Patents by Inventor Kiyoshige Kojima

Kiyoshige 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).

  • 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
  • Publication number: 20200328566
    Abstract: Disclosed is a power wiring device which comprises: at least one elongated wiring member which includes a plurality of first connectors and allows the first connectors to be mutually electrically conducted; and a plurality of circuit modules each including a second connector which is mechanically and electrically attachable to and detachable from any of the first connectors, wherein the plurality of circuit modules include: at least one energy harvesting module as a circuit module capable of outputting power generated by energy harvesting from the second connector; and at least one load module as a circuit module capable of consuming power input from the second connector.
    Type: Application
    Filed: November 5, 2018
    Publication date: October 15, 2020
    Applicant: ZEON CORPORATION
    Inventors: Masayoshi YOSHIDA, Kiyoshige KOJIMA
  • Publication number: 20200321912
    Abstract: Disclosed is an energy harvesting apparatus which comprises: a flexible energy harvesting module having a flat plate shape; a connector which is mechanically and electrically connectable to an external connector; a rigid member having a flat plate shape; and an electric wiring constituting a part of a front surface of the rigid member, wherein an edge of a back surface of the energy harvesting module is disposed on the front surface of the rigid member, and the connector is disposed on the front surface of the rigid member at a position spaced apart from the energy harvesting module and is electrically connected to the energy harvesting module via the electric wiring.
    Type: Application
    Filed: August 7, 2018
    Publication date: October 8, 2020
    Applicant: ZEON CORPORATION
    Inventors: Masayoshi YOSHIDA, Kiyoshige KOJIMA, Midori YAMAAI, Naomi SHIGA
  • 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
  • Patent number: 10732655
    Abstract: Disclosed are an energy harvesting apparatus and a current control circuit which include: a current control unit; a first voltage control unit that controls the current control unit so that an input voltage to the current control unit becomes equal to or higher than a first voltage; and a second voltage control unit that controls the current control unit so that an output voltage from the current control unit becomes equal to or lower than a second voltage which is equal to or higher than the first voltage.
    Type: Grant
    Filed: May 29, 2017
    Date of Patent: August 4, 2020
    Assignee: ZEON CORPORATION
    Inventors: Masayoshi Yoshida, Kiyoshige Kojima
  • Publication number: 20200220491
    Abstract: Provided is an energy harvester having excellent portability. The energy harvester includes a flat plate-shaped energy harvesting section and a pair of connectors that are electrically conductive. The energy harvesting section includes an electricity generating region that utilizes energy in the external environment to generate electrical power and metal foils. The metal foils extend from the electricity generating region to a peripheral part of the energy harvesting section. The electrical power of the electricity generating region is supplied to the metal foils. The peripheral part includes a pair of holes that expose part of each of the metal foils. Each of the connectors includes a spring, a terminal part that is electrically connected to the spring and is connectable to an external device, and a flat plate part that overlaps with the energy harvesting section. The springs are electrically connected to the metal foils exposed via the holes.
    Type: Application
    Filed: September 13, 2018
    Publication date: July 9, 2020
    Applicant: ZEON CORPORATION
    Inventors: Masayoshi YOSHIDA, Kiyoshige KOJIMA, Yuki HAYASHI, Takatoshi MATSUO, Midori YAMAAI
  • Publication number: 20200028465
    Abstract: A panel connected body includes a plurality of flat panels arranged in a matrix of m rows and n columns, where m?2 and n?2; and a plurality of row-direction connection portions and column-direction connection portions which connect together panels that are adjacent in a row direction and column direction, respectively. A first type row satisfying relationships D1?2L and Dy?Dy?1+2L and a second type row satisfying relationships Dn?2L and Dy?Dy+1+2L are alternately included, where Dy is a length along the column direction of the column-direction connection portions in a y-th column, and L is a thickness of the panels. The relationship E?WC?L is satisfied, where WC is a length along the column direction of the panels and E is a length along the column direction of the row-direction connection portions.
    Type: Application
    Filed: January 24, 2018
    Publication date: January 23, 2020
    Applicant: ZEON CORPORATION
    Inventors: Yuki HAYASHI, Kiyoshige KOJIMA, Masayoshi YOSHIDA
  • 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
  • Publication number: 20190140584
    Abstract: A panel connected body comprises: a plurality of thin panels arranged in a matrix of m rows and n columns; and a connection portion connecting the plurality of thin panels in a row direction and a column direction, wherein the panel connected body is foldable between adjacent thin panels of the plurality of thin panels. The connection portion has, alternately in the column direction, a first type row satisfying relationships D1?2L and Dy?Dy?1+2L and a second type row satisfying relationships Dn?2L and Dy?Dy+1+2L, where Dy is a length of the connection portion between thin panels P adjacent in the column direction at a yth column, and L is a thickness of each of the plurality of thin panels in a vertical direction.
    Type: Application
    Filed: May 12, 2017
    Publication date: May 9, 2019
    Applicant: ZEON CORPORATION
    Inventors: Yuki HAYASHI, Kiyoshige KOJIMA, Masayoshi YOSHIDA
  • Publication number: 20190129455
    Abstract: Disclosed are an energy harvesting apparatus and a current control circuit which include: a current control unit; a first voltage control unit that controls the current control unit so that an input voltage to the current control unit becomes equal to or higher than a first voltage; and a second voltage control unit that controls the current control unit so that an output voltage from the current control unit becomes equal to or lower than a second voltage which is equal to or higher than the first voltage.
    Type: Application
    Filed: May 29, 2017
    Publication date: May 2, 2019
    Applicant: ZEON CORPORATION
    Inventors: Masayoshi YOSHIDA, Kiyoshige KOJIMA
  • Publication number: 20190115867
    Abstract: The power generation module group 1 includes a sheet 10 and power generation panels 21 to 24. First lines L1 and L1? are present between the panels 21 and 22 adjacent to each other in the lateral direction, the first lines crossing neither the panels 21 nor 22 and coming in contact with both the panels 21 and 22. The second line L2 is present on the bottom side of the panel 21 and on the bottom side of the panel 22, crosses neither the panels 21 nor 22 and is parallel in the lateral direction. An angle ?1 that is the largest angle on the panel 22 side of angles formed by the second line L2 and the first lines L1 and L1? is an acute angle. The panels 23 and 24 are disposed in line symmetry with the panels 21 and 22, respectively, with respect to the lateral direction.
    Type: Application
    Filed: January 19, 2017
    Publication date: April 18, 2019
    Applicant: ZEON CORPORATION
    Inventors: Yuki HAYASHI, Kiyoshige KOJIMA, Masayoshi YOSHIDA
  • Patent number: 10243509
    Abstract: Provided is a photoelectric conversion module group that enables a balance of high levels of mechanical strength improvement and weight reduction when thin photoelectric conversion modules are used. The photoelectric conversion module includes: a plurality of photoelectric conversion modules (11); a flexible linking portion (12) that mechanically and electrically connects two adjacent photoelectric conversion modules (11) among the plurality of photoelectric conversion modules (11); a flexible protective member (14) that covers at least one of a front surface and a rear surface of the linking portion (12); and one or more rigid reinforcing members (13) that partially cover the photoelectric conversion modules (11). In a case in which a reinforcing member (13) is present at a rear surface of any of the photoelectric conversion modules (11), the rear surface includes an exposed surface region that is not covered by the reinforcing member (13).
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: March 26, 2019
    Assignee: ZEON CORPORATION
    Inventors: Masayoshi Yoshida, Kiyoshige Kojima, Yuki Hayashi, Midori Yamaai, Akihiko Yoshiwara
  • Publication number: 20190066933
    Abstract: A method for producing a transparent conductive film is provided. The method includes the steps of: applying a treatment solution prepared by dissolving a metal alkoxide of tin or niobium in an organic solvent on one surface of a carbon nanotube-containing layer (1) containing carbon nanotubes having an average diameter Av and a diameter standard deviation ? that satisfy a relationship 0.60>3?/Av>0.20 to form an oxide layer (2) of tin or niobium on the one surface of the carbon nanotube-containing layer (1).
    Type: Application
    Filed: October 30, 2018
    Publication date: February 28, 2019
    Applicant: ZEON CORPORATION
    Inventors: Akihiko YOSHIWARA, Kiyoshige KOJIMA, Akihiro KOJIMA, Masashi IKEGAMI
  • Patent number: 10181602
    Abstract: Provided is a redox catalyst wherein a catalytically active component is supported on carbon nanotubes whose average diameter (Av) and standard deviation (?) of diameters satisfy the condition 0.60>3?/Av>0.20, and at least a part of a surface of the carbon nanotubes, including a part on which the catalytically active component is supported, is covered with porous inorganic material.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: January 15, 2019
    Assignees: ZEON CORPORATION, KYUSHU UNIVERSITY
    Inventors: Masahiro Kishida, Sakae Takenaka, Akihiko Yoshiwara, Kiyoshige Kojima
  • Publication number: 20180331397
    Abstract: A charging device comprises: a plurality of secondary batteries 11; and a charge and discharge control circuit 13, wherein at least either of: a plurality of thresholds each as a charge amount detection threshold; and a plurality of thresholds each as a discharge amount detection threshold are set, and each time the remaining battery level of a charge-side secondary battery 11 reaches the charge amount detection threshold and each time the remaining battery level of an other secondary battery 11 as a discharge-side secondary battery 11 reaches the discharge amount detection threshold, the charge and discharge control circuit 13 determines whether or not to perform switching between the secondary batteries 11 subjected to charging and discharging, depending on the remaining battery level of the charge-side secondary battery 11 and the remaining battery level of the discharge-side secondary battery 11.
    Type: Application
    Filed: November 9, 2016
    Publication date: November 15, 2018
    Applicant: ZEON CORPORATION
    Inventors: Midori YAMAAI, Kiyoshige KOJIMA, Masayoshi YOSHIDA
  • Patent number: D833969
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: November 20, 2018
    Assignee: ZEON CORPORATION
    Inventors: Kiyoshige Kojima, Yuki Hayashi
  • Patent number: D849678
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: May 28, 2019
    Assignee: ZEON CORPORATION
    Inventors: Kiyoshige Kojima, Yuki Hayashi
  • Patent number: D867984
    Type: Grant
    Filed: May 28, 2018
    Date of Patent: November 26, 2019
    Assignee: ZEON CORPORATION
    Inventors: Kiyoshige Kojima, Yuki Hayashi
  • Patent number: D883916
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: May 12, 2020
    Assignee: ZEON CORPORATION
    Inventors: Kiyoshige Kojima, Yuki Hayashi
  • Patent number: D905623
    Type: Grant
    Filed: May 28, 2018
    Date of Patent: December 22, 2020
    Assignee: ZEON CORPORATION
    Inventors: Kiyoshige Kojima, Yuki Hayashi