Patents by Inventor Shoichiro Ogumi

Shoichiro Ogumi 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: 11776710
    Abstract: An electroconductive film which is capable of inhibiting milkiness; and a touch panel and image display device that include the electroconductive film are provided. According to one aspect of the present invention, an electroconductive film 10 including at least an electroconductive part 12, wherein the electroconductive part 12 includes a light-transmitting resin 14 and a plurality of electroconductive fibers 15 placed in the light-transmitting resin 14, and the diffused light reflectance (SCE) in a region of the electroconductive film 10 where the electroconductive part 12 is present is 0.5% or less, is provided.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: October 3, 2023
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Eiji Ooishi, Shoichiro Ogumi, Yukimitsu Iwata, Takashi Takekoshi, Seiichi Isojima
  • Patent number: 11760070
    Abstract: The present invention aims to provide a conductive layered body having excellent solvent resistance and scratch resistance as well as a low haze value and a significantly high light transmittance. The present invention relates to a conductive layered body including, as an outermost layer thereof, a conductive layer containing a conductive fibrous filler, wherein the conductive layered body has a Martens hardness of 150 to 3,000 N/mm2 as measured at an indentation depth of 100 nm from a surface, and a ratio, in atomic percentage, of a conductive material element constituting the conductive fibrous filler on an outermost surface-side surface of the conductive layer is 0.15 to 5.00 at %.
    Type: Grant
    Filed: January 5, 2022
    Date of Patent: September 19, 2023
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yoshimasa Ogawa, Yukimitsu Iwata, Yuji Shimizu, Eiji Ooishi, Shoichiro Ogumi, Norinaga Nakamura
  • Patent number: 11669211
    Abstract: One aspect of the present invention provides an electroconductive film 10 comprising a light-transmitting base material 11, a plurality of light-transmitting electroconductive parts 12 provided on one surface 11A of the light-transmitting base material 11, and a nonconductive part 13 located between the electroconductive parts 12, wherein each of the electroconductive parts 12 contains a light-transmitting resin 15 and an electroconductive fiber 16 incorporated in the light-transmitting resin 15; the nonconductive part 13 contains a light-transmitting resin 15; and the surface 13A of the nonconductive part 13 has an arithmetic average roughness of 3 nm or more.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: June 6, 2023
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Shoichiro Ogumi, Eiji Ooishi, Yoshimasa Ogawa, Yuji Shimizu, Ryota Kitayama
  • Patent number: 11648759
    Abstract: One aspect of the present invention provides a light-transmitting electroconductive film 10 comprising a light-transmitting base material 11 and an electroconductive part 13 provided on one surface of the light-transmitting base material 11, wherein the electroconductive part 13 includes a light-transmitting resin 15 and plural electroconductive fibers 16 incorporated in the light-transmitting resin 15, and the electroconductive part 13 can conduct electricity from the surface 13A of the electroconductive part 13, and the electroconductive fibers 16 as a whole are unevenly distributed on the light-transmitting base material side than the position HL, which is located at half the film thickness of the electroconductive part 13 in the electroconductive part 13, and the electroconductive part 13 has a surface resistance value of 200 ?/? or less, and the electroconductive film 10 has a haze value of 5% or less.
    Type: Grant
    Filed: March 2, 2022
    Date of Patent: May 16, 2023
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Shoichiro Ogumi, Yoshimasa Ogawa, Eiji Ooishi, Yukimitsu Iwata, Yuji Shimizu, Ryota Kitayama, Hiroaki Mutou
  • Publication number: 20220184934
    Abstract: One aspect of the present invention provides a light-transmitting electroconductive film 10 comprising a light-transmitting base material 11 and an electroconductive part 13 provided on one surface of the light-transmitting base material 11, wherein the electroconductive part 13 includes a light-transmitting resin 15 and plural electroconductive fibers 16 incorporated in the light-transmitting resin 15, and the electroconductive part 13 can conduct electricity from the surface 13A of the electroconductive part 13, and the electroconductive fibers 16 as a whole are unevenly distributed on the light-transmitting base material side than the position HL, which is located at half the film thickness of the electroconductive part 13 in the electroconductive part 13, and the electroconductive part 13 has a surface resistance value of 200?/? or less, and the electroconductive film 10 has a haze value of 5% or less.
    Type: Application
    Filed: March 2, 2022
    Publication date: June 16, 2022
    Inventors: Shoichiro OGUMI, Yoshimasa OGAWA, Eiji OOISHI, Yukimitsu IWATA, Yuji SHIMIZU, Ryota KITAYAMA, Hiroaki MUTOU
  • Publication number: 20220126551
    Abstract: The present invention aims to provide a conductive layered body having excellent solvent resistance and scratch resistance as well as a low haze value and a significantly high light transmittance. The present invention relates to a conductive layered body including, as an outermost layer thereof, a conductive layer containing a conductive fibrous filler, wherein the conductive layered body has a Martens hardness of 150 to 3,000 N/mm2 as measured at an indentation depth of 100 nm from a surface, and a ratio, in atomic percentage, of a conductive material element constituting the conductive fibrous filler on an outermost surface-side surface of the conductive layer is 0.15 to 5.00 at %.
    Type: Application
    Filed: January 5, 2022
    Publication date: April 28, 2022
    Inventors: Yoshimasa OGAWA, Yukimitsu IWATA, Yuji SHIMIZU, Eiji OOISHI, Shoichiro OGUMI, Norinaga NAKAMURA
  • Patent number: 11298925
    Abstract: One aspect of the present invention provides a light-transmitting electroconductive film 10 comprising a light-transmitting base material 11 and an electroconductive part 13 provided on one surface of the light-transmitting base material 11, wherein the electroconductive part 13 includes a light-transmitting resin 15 and plural electroconductive fibers 16 incorporated in the light-transmitting resin 15, and the electroconductive part 13 can conduct electricity from the surface 13A of the electroconductive part 13, and the electroconductive fibers 16 as a whole are unevenly distributed on the light-transmitting base material side than the position HL, which is located at half the film thickness of the electroconductive part 13 in the electroconductive part 13, and the electroconductive part 13 has a surface resistance value of 200?/? or less, and the electroconductive film 10 has a haze value of 5% or less.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: April 12, 2022
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Shoichiro Ogumi, Yoshimasa Ogawa, Eiji Ooishi, Yukimitsu Iwata, Yuji Shimizu, Ryota Kitayama, Hiroaki Mutou
  • Patent number: 11247444
    Abstract: The present invention aims to provide a conductive layered body having excellent solvent resistance and scratch resistance as well as a low haze value and a significantly high light transmittance. The present invention relates to a conductive layered body including, as an outermost layer thereof, a conductive layer containing a conductive fibrous filler, wherein the conductive layered body has a Martens hardness of 150 to 3,000 N/mm2 as measured at an indentation depth of 100 nm from a surface, and a ratio, in atomic percentage, of a conductive material element constituting the conductive fibrous filler on an outermost surface-side surface of the conductive layer is 0.15 to 5.00 at %.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: February 15, 2022
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yoshimasa Ogawa, Yukimitsu Iwata, Yuji Shimizu, Eiji Ooishi, Shoichiro Ogumi, Norinaga Nakamura
  • Publication number: 20210118589
    Abstract: An electroconductive film which is capable of inhibiting milkiness; and a touch panel and image display device that include the electroconductive film are provided. According to one aspect of the present invention, an electroconductive film 10 including at least an electroconductive part 12, wherein the electroconductive part 12 includes a light-transmitting resin 14 and a plurality of electroconductive fibers 15 placed in the light-transmitting resin 14, and the diffused light reflectance (SCE) in a region of the electroconductive film 10 where the electroconductive part 12 is present is 0.5% or less, is provided.
    Type: Application
    Filed: March 8, 2019
    Publication date: April 22, 2021
    Inventors: Eiji OOISHI, Shoichiro OGUMI, Yukimitsu IWATA, Takashi TAKEKOSHI, Seiichi ISOJIMA
  • Publication number: 20210064164
    Abstract: An aspect of the present invention provides an electroconductive film 10 including a first electroconductive part 11 and a second electroconductive part 14, wherein the surface 14A of the second electroconductive part 14 forms at least a part of the surface 10A of the electroconductive film 10, the surface 11A of the first electroconductive part 11 forms at least a part of the back face 10B of the electroconductive film 10, the first electroconductive part 11 and the second electroconductive part 14 each contain electroconductive fibers 15 and 17, and the surface resistance value of the second electroconductive part 14 is within ±30% of the surface resistance value of the first electroconductive part 11.
    Type: Application
    Filed: December 25, 2018
    Publication date: March 4, 2021
    Inventors: Masataka INOU, Shoichiro OGUMI, Yuji SHIMIZU, Hiroaki MUTOU, Ryota KITAYAMA
  • Publication number: 20200393923
    Abstract: One aspect of the present invention provides a light-transmitting electroconductive film 10 comprising a light-transmitting base material 11 and an electroconductive part 13 provided on one surface of the light-transmitting base material 11, wherein the electroconductive part 13 includes a light-transmitting resin 15 and plural electroconductive fibers 16 incorporated in the light-transmitting resin 15, and the electroconductive part 13 can conduct electricity from the surface 13A of the electroconductive part 13, and the electroconductive fibers 16 as a whole are unevenly distributed on the light-transmitting base material side than the position HL, which is located at half the film thickness of the electroconductive part 13 in the electroconductive part 13, and the electroconductive part 13 has a surface resistance value of 200?/? or less, and the electroconductive film 10 has a haze value of 5% or less.
    Type: Application
    Filed: July 7, 2020
    Publication date: December 17, 2020
    Inventors: Shoichiro OGUMI, Yoshimasa OGAWA, Eiji OOISHI, Yukimitsu IWATA, Yuji SHIMIZU, Ryota KITAYAMA, Hiroaki MUTOU
  • Patent number: 10831327
    Abstract: One aspect of the present invention provides a light-transmitting electroconductive film 10 comprising a light-transmitting base material 11 and an electroconductive part 13 provided on one surface of the light-transmitting base material 11, wherein the electroconductive part 13 includes a light-transmitting resin 15 and plural electroconductive fibers 16 incorporated in the light-transmitting resin 15, and the electroconductive part 13 can conduct electricity from the surface 13A of the electroconductive part 13, and the electroconductive fibers 16 as a whole are unevenly distributed on the light-transmitting base material side than the position HL, which is located at half the film thickness of the electroconductive part 13 in the electroconductive part 13, and the electroconductive part 13 has a surface resistance value of 200 ?/? or less, and the electroconductive film 10 has a haze value of 5% or less.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: November 10, 2020
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Shoichiro Ogumi, Yoshimasa Ogawa, Eiji Ooishi, Yukimitsu Iwata, Yuji Shimizu, Ryota Kitayama, Hiroaki Mutou
  • Publication number: 20200057517
    Abstract: One aspect of the present invention provides an electroconductive film 10 comprising a light-transmitting base material 11, a plurality of light-transmitting electroconductive parts 12 provided on one surface 11A of the light-transmitting base material 11, and a nonconductive part 13 located between the electroconductive parts 12, wherein each of the electroconductive parts 12 contains a light-transmitting resin 15 and an electroconductive fiber 16 incorporated in the light-transmitting resin 15; the nonconductive part 13 contains a light-transmitting resin 15; and the surface 13A of the nonconductive part 13 has an arithmetic average roughness of 3 nm or more.
    Type: Application
    Filed: March 20, 2018
    Publication date: February 20, 2020
    Inventors: Shoichiro OGUMI, Eiji OOISHI, Yoshimasa OGAWA, Yuji SHIMIZU, Ryota KITAYAMA
  • Publication number: 20190302925
    Abstract: One aspect of the present invention provides a light-transmitting electroconductive film 10 comprising a light-transmitting base material 11 and an electroconductive part 13 provided on one surface of the light-transmitting base material 11, wherein the electroconductive part 13 includes a light-transmitting resin 15 and plural electroconductive fibers 16 incorporated in the light-transmitting resin 15, and the electroconductive part 13 can conduct electricity from the surface 13A of the electroconductive part 13, and the electroconductive fibers 16 as a whole are unevenly distributed on the light-transmitting base material side than the position HL, which is located at half the film thickness of the electroconductive part 13 in the electroconductive part 13, and the electroconductive part 13 has a surface resistance value of 200 ?/? or less, and the electroconductive film 10 has a haze value of 5% or less.
    Type: Application
    Filed: September 29, 2017
    Publication date: October 3, 2019
    Inventors: Shoichiro OGUMI, Yoshimasa OGAWA, Eiji OOISHI, Yukimitsu IWATA, Yuji SHIMIZU, Ryota KITAYAMA, Hiroaki MUTOU
  • Patent number: 10295706
    Abstract: Provided are: an optical film, wherein interference fringes can be suppressed from being generated, cloudiness is not observed, and a manufacture cost can be reduced. In accordance with one aspect of the present invention, there is provided an optical film 10 including a functional layer 12, wherein the functional layer 12 has a concavo-convex surface 12A; and in a state in which the concavo-convex surface 12A is irradiated with parallel light travelling in a direction sloped at 10° with respect to a normal direction N of the optical film 10, in an angle distribution of reflected light intensities measured in a plane including both directions of the normal direction N and the travelling direction T of the parallel light, a value obtained by subtracting ½ angle width from 1/100 angle width is 0.7° or more and 1.4° or less.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: May 21, 2019
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Shoichiro Ogumi, Junya Eguchi, Gen Furui, Seika Minakoshi, Yukimitsu Iwata
  • Patent number: 10048407
    Abstract: An antiglare film in which occurrence of screen scintillation and white muddiness can be sufficiently prevented at a high level while maintaining hard coating properties and antiglare properties, and excellent display images with a high contrast can be provided. The antiglare film includes a light-transmitting substrate; and an antiglare layer having a surface roughness on at least one surface of the light-transmitting substrate, wherein the antiglare layer contains an aggregate composed of two or more types of fine particles, and the aggregate forms a projection of the surface of the antiglare layer to form a surface roughness on the antiglare layer.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: August 14, 2018
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Junya Eguchi, Tasuku Kitamura, Shoichiro Ogumi
  • Publication number: 20180079189
    Abstract: The present invention aims to provide a conductive layered body having excellent solvent resistance and scratch resistance as well as a low haze value and a significantly high light transmittance. The present invention relates to a conductive layered body including, as an outermost layer thereof, a conductive layer containing a conductive fibrous filler, wherein the conductive layered body has a Martens hardness of 150 to 3,000 N/mm2 as measured at an indentation depth of 100 nm from a surface, and a ratio, in atomic percentage, of a conductive material element constituting the conductive fibrous filler on an outermost surface-side surface of the conductive layer is 0.15 to 5.00 at %.
    Type: Application
    Filed: April 5, 2016
    Publication date: March 22, 2018
    Inventors: Yoshimasa OGAWA, Yukimitsu IWATA, Yuji SHIMIZU, Eiji OOISHI, Shoichiro OGUMI, Norinaga NAKAMURA
  • Patent number: 9835768
    Abstract: An antiglare film, including: a light transmissive substrate; and an antiglare layer that is disposed on a light transmissive substrate and includes a concavo-convex surface, wherein a surface of the antiglare film is a concavo-convex surface; the antiglare film has a total haze value of 0% or more and 5% or less; the antiglare film has an internal haze value of 0% or more and 5% or less; and assuming that a transmission image sharpness of the antiglare film, measured using an optical comb with a width of 0.125 mm, is C (0.125), and that a transmission image sharpness of the antiglare film, measured using an optical comb with a width of 0.25 mm, is C (0.25), an expression (1) and an expression (2) described below are satisfied: C(0.25)?C(0.125)?2%??(1); and C(0.125)?65%??(2).
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: December 5, 2017
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Junya Eguchi, Teppei Sotoda, Shoichiro Ogumi, Kousuke Matsuyama, Gen Furui
  • Patent number: 9804300
    Abstract: An antiglare film, including: a light transmissive substrate; and an antiglare layer that is disposed on a light transmissive substrate and includes a concavo-convex surface, wherein a surface of the antiglare film is a concavo-convex surface; the antiglare film has a total haze value of 0% or more and 5% or less; the antiglare film has an internal haze value of 0% or more and 5% or less; and assuming that a transmission image sharpness of the antiglare film, measured using an optical comb with a width of 0.125 mm, is C (0.125), and that a transmission image sharpness of the antiglare film, measured using an optical comb with a width of 0.25 mm, is C (0.25), an expression (1) and an expression (2) described below are satisfied: C(0.25)?C(0.125)?2%??(1); and C(0.125)?65%??(2).
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: October 31, 2017
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Junya Eguchi, Teppei Sotoda, Shoichiro Ogumi, Kousuke Matsuyama, Gen Furui
  • Publication number: 20160245955
    Abstract: An antiglare film, including: a light transmissive substrate; and an antiglare layer that is disposed on a light transmissive substrate and includes a concavo-convex surface, wherein a surface of the antiglare film is a concavo-convex surface; the antiglare film has a total haze value of 0% or more and 5% or less; the antiglare film has an internal haze value of 0% or more and 5% or less; and assuming that a transmission image sharpness of the antiglare film, measured using an optical comb with a width of 0.125 mm, is C (0.125), and that a transmission image sharpness of the antiglare film, measured using an optical comb with a width of 0.25 mm, is C (0.25), an expression (1) and an expression (2) described below are satisfied: C(0.25)?C(0.125)?2%??(1); and C(0.125)?65%??(2).
    Type: Application
    Filed: May 2, 2016
    Publication date: August 25, 2016
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Junya EGUCHI, Teppei SOTODA, Shoichiro OGUMI, Kousuke MATSUYAMA, Gen FURUI