Patents by Inventor Yoshimasa Ogawa
Yoshimasa Ogawa 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).
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Patent number: 11968855Abstract: An embodiment of the present invention provides an optical film (10) including a light-transmitting base material (11), a hard coat layer (12), and an inorganic layer (13) in this order, wherein the hard coat layer (12) is in contact with the inorganic layer (13), the hard coat layer (12) contains a binder resin (12A) and inorganic particles (12B), the hard coat layer (12) has a film thickness of 1 ?m or more, and the hard coat layer (12) has an indentation hardness of 200 MPa or more.Type: GrantFiled: May 18, 2022Date of Patent: April 23, 2024Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Hiroki Matsushita, Yoshimasa Ogawa, Yousuke Kousaka, Jun Sato, Keisuke Ebisu
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Patent number: 11937447Abstract: An embodiment of the present invention provides an optical film (10) including a light-transmitting base material (11), a hard coat layer (12), and an inorganic layer (13) in this order, wherein the hard coat layer (12) is in contact with the inorganic layer (13), the hard coat layer (12) contains a binder resin (12A) and inorganic particles (12B), the hard coat layer (12) has a film thickness of 1 ?m or more, and the hard coat layer (12) has an indentation hardness of 200 MPa or more.Type: GrantFiled: May 18, 2022Date of Patent: March 19, 2024Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Hiroki Matsushita, Yoshimasa Ogawa, Yousuke Kousaka, Jun Sato, Keisuke Ebisu
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Publication number: 20230345799Abstract: The present disclosure provides a flexible organic electroluminescence display device comprising a front panel placed on an observer side of an organic electroluminescence display panel, wherein the front panel includes a glass substrate, with a thickness of 100 ?m or less, on the organic electroluminescence display panel, and a resin layer on the glass substrate; in a plane of the resin layer, when a composite elastic modulus of a first direction is regarded as E1, a composite elastic modulus of a second direction that is a direction orthogonally crossing the first direction is regarded as E2, E1/E2 is 1.2 or more; and an angle formed by a folding direction of the flexible organic electroluminescence display device and the first direction is 45° or more and 90° or less.Type: ApplicationFiled: March 23, 2021Publication date: October 26, 2023Inventors: Jun SATO, Gen FURUI, Atsuhiro KOBAYASHI, Yoshimasa OGAWA
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Patent number: 11760070Abstract: 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: GrantFiled: January 5, 2022Date of Patent: September 19, 2023Assignee: Dai Nippon Printing Co., Ltd.Inventors: Yoshimasa Ogawa, Yukimitsu Iwata, Yuji Shimizu, Eiji Ooishi, Shoichiro Ogumi, Norinaga Nakamura
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Patent number: 11669211Abstract: 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: GrantFiled: March 20, 2018Date of Patent: June 6, 2023Assignee: Dai Nippon Printing Co., Ltd.Inventors: Shoichiro Ogumi, Eiji Ooishi, Yoshimasa Ogawa, Yuji Shimizu, Ryota Kitayama
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Patent number: 11648759Abstract: 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: GrantFiled: March 2, 2022Date of Patent: May 16, 2023Assignee: Dai Nippon Printing Co., Ltd.Inventors: Shoichiro Ogumi, Yoshimasa Ogawa, Eiji Ooishi, Yukimitsu Iwata, Yuji Shimizu, Ryota Kitayama, Hiroaki Mutou
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Publication number: 20230016838Abstract: One embodiment of the present disclosure provides a resin layer 10 used for an image displaying device, wherein a shear storage elastic modulus G? of the resin layer 10, at 25° C. and frequency range of 500 Hz or more and 1000 Hz or less, is 30 MPa or more and 200 MPa or less, and a glass transition temperature of the resin layer 10 is 50° C. or more.Type: ApplicationFiled: September 28, 2020Publication date: January 19, 2023Inventors: Atsuhiro KOBAYASHI, Yousuke KOUSAKA, Takayuki FUKUDA, Kazuya HONDA, Kana YAMAMOTO, Yoshimasa OGAWA, Jun SATO, Gen FURUI, Keisuke YAMADA, Saori KAWAGUCHI
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Publication number: 20220367832Abstract: The present disclosure provides a front panel for a display device comprising a substrate layer, an A layer, an impact absorbing layer, and a B layer, in this order, wherein a shear storage elastic modulus of the A layer and the B layer, at frequency of 950 Hz and temperature of 23° C., is 20 MPa or less, and in the impact absorbing layer, a tensile storage elastic modulus at frequency of 950 Hz and temperature of 23° C. is 200 MPa or more and 5000 MPa or less, and a glass transition temperature is 50° C. or more.Type: ApplicationFiled: September 28, 2020Publication date: November 17, 2022Inventors: Atsuhiro KOBAYASHI, Yousuke KOUSAKA, Takayuki FUKUDA, Kazuya HONDA, Kana YAMAMOTO, Yoshimasa OGAWA, Jun SATO, Gen FURUI, Keisuke YAMADA, Saori KAWAGUCHI
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Publication number: 20220285648Abstract: An embodiment of the present invention provides an optical film (10) including a light-transmitting base material (11), a hard coat layer (12), and an inorganic layer (13) in this order, wherein the hard coat layer (12) is in contact with the inorganic layer (13), the hard coat layer (12) contains a binder resin (12A) and inorganic particles (12B), the hard coat layer (12) has a film thickness of 1 ?m or more, and the hard coat layer (12) has an indentation hardness of 200 MPa or more.Type: ApplicationFiled: May 18, 2022Publication date: September 8, 2022Inventors: Hiroki MATSUSHITA, Yoshimasa OGAWA, Yousuke KOUSAKA, Jun SATO, Keisuke EBISU
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Patent number: 11367856Abstract: An embodiment of the present invention provides an optical film (10) including a light-transmitting base material (11), a hard coat layer (12), and an inorganic layer (13) in this order, wherein the hard coat layer (12) is in contact with the inorganic layer (13), the hard coat layer (12) contains a binder resin (12A) and inorganic particles (12B), the hard coat layer (12) has a film thickness of 1 ?m or more, and the hard coat layer (12) has an indentation hardness of 200 MPa or more.Type: GrantFiled: September 28, 2018Date of Patent: June 21, 2022Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Hiroki Matsushita, Yoshimasa Ogawa, Yousuke Kousaka, Jun Sato, Keisuke Ebisu
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Publication number: 20220184934Abstract: 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: ApplicationFiled: March 2, 2022Publication date: June 16, 2022Inventors: Shoichiro OGUMI, Yoshimasa OGAWA, Eiji OOISHI, Yukimitsu IWATA, Yuji SHIMIZU, Ryota KITAYAMA, Hiroaki MUTOU
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Publication number: 20220137266Abstract: According to one aspect of the present invention, a light-transmitting resin layer used in an image display device is provided, in which the layer is divided into three equal parts in the film thickness direction of the layer, which are referred to as first region, second region, and third region, respectively, in the order from a first surface of the layer to a second surface opposite to the first surface. Upon an indentation test in which a Berkovich indenter is pressed into the first region, the second region, and the third region at a certain load on the cross-section of the layer in the film thickness direction, and in which the displacement amount in the first region, in the second region, and in the third region are determined as d1, d2, and d3, respectively, the layer satisfies the relationship of d1<d2<d3.Type: ApplicationFiled: February 27, 2020Publication date: May 5, 2022Inventors: Keisuke EBISU, Yoshimasa OGAWA, Jun SATO, Kana HORII, Keisuke YAMADA, Kazuya HONDA, Atsuhiro KOBAYASHI, Yousuke KOUSAKA, Takayuki FUKUDA
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Publication number: 20220126551Abstract: 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: ApplicationFiled: January 5, 2022Publication date: April 28, 2022Inventors: Yoshimasa OGAWA, Yukimitsu IWATA, Yuji SHIMIZU, Eiji OOISHI, Shoichiro OGUMI, Norinaga NAKAMURA
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Patent number: 11307339Abstract: An aspect of the present invention provides an optical film 10 including a resin base material 11 and a functional layer 12, wherein a 5-?m square region on the front surface 10A of the optical film 10 is observed to have 1 or more and 50 or less depressions having any shape at least selected from a ring shape, a circular shape, and an irregular shape, when the square region is observed using an atomic force microscope after a rubber eraser abrasion test, in which the front surface 10A is rubbed 4,000 times with a rubber eraser in a reciprocating motion under a load of 500 g; the front surface 10A has a dynamic friction coefficient of 0.70 or less before the test; and the change rate of the dynamic friction coefficient of the front surface 10A between before and after the test is 35%.Type: GrantFiled: April 26, 2019Date of Patent: April 19, 2022Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Toshiki Iwasaki, Yoshiaki Ooyari, Yoshimasa Ogawa, Jun Sato
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Patent number: 11298925Abstract: 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: GrantFiled: July 7, 2020Date of Patent: April 12, 2022Assignee: Dai Nippon Printing Co., Ltd.Inventors: Shoichiro Ogumi, Yoshimasa Ogawa, Eiji Ooishi, Yukimitsu Iwata, Yuji Shimizu, Ryota Kitayama, Hiroaki Mutou
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Patent number: 11247444Abstract: 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: GrantFiled: April 5, 2016Date of Patent: February 15, 2022Assignee: Dai Nippon Printing Co., Ltd.Inventors: Yoshimasa Ogawa, Yukimitsu Iwata, Yuji Shimizu, Eiji Ooishi, Shoichiro Ogumi, Norinaga Nakamura
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Publication number: 20210239892Abstract: An aspect of the present invention provides an optical film 10 including a resin base material 11 and a functional layer 12, wherein a 5-?m square region on the front surface 10A of the optical film 10 is observed to have 1 or more and 50 or less depressions having any shape at least selected from a ring shape, a circular shape, and an irregular shape, when the square region is observed using an atomic force microscope after a rubber eraser abrasion test, in which the front surface 10A is rubbed 4,000 times with a rubber eraser in a reciprocating motion under a load of 500 g; the front surface 10A has a dynamic friction coefficient of 0.70 or less before the test; and the change rate of the dynamic friction coefficient of the front surface 10A between before and after the test is 35%.Type: ApplicationFiled: April 26, 2019Publication date: August 5, 2021Inventors: Toshiki IWASAKI, Yoshiaki OOYARI, Yoshimasa OGAWA, Jun SATO
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Publication number: 20210050553Abstract: Provided are a foldable optical film with excellent impact resistance and with capability to improve design quality, and an image display device including the same. An aspect of the present invention provides a foldable optical film 10 with a front surface 10A and a back surface 10B opposite to the front surface 10A, wherein optical film 10 includes a hard coat layer 12, a resin layer 13, and a decorative layer 14; the hard coat layer 12 is located closer to the front surface 10A than the resin layer 13 and the decorative layer 14 in the optical film 10; and the resin layer 13 has a film thickness of 10 ?m or more, and the resin layer 13 has a Martens hardness of 1 MPa or more and 100 MPa or less.Type: ApplicationFiled: February 27, 2019Publication date: February 18, 2021Inventors: Yoshimasa OGAWA, Keisuke EBISU, Yousuke KOUSAKA, Jun SATO, Takahito KAWAKAMI, Atsuhiro KOBAYASHI, Hiroki MATSUSHITA
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Publication number: 20200393923Abstract: 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: ApplicationFiled: July 7, 2020Publication date: December 17, 2020Inventors: Shoichiro OGUMI, Yoshimasa OGAWA, Eiji OOISHI, Yukimitsu IWATA, Yuji SHIMIZU, Ryota KITAYAMA, Hiroaki MUTOU
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Patent number: 10831327Abstract: 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: GrantFiled: September 29, 2017Date of Patent: November 10, 2020Assignee: Dai Nippon Printing Co., Ltd.Inventors: Shoichiro Ogumi, Yoshimasa Ogawa, Eiji Ooishi, Yukimitsu Iwata, Yuji Shimizu, Ryota Kitayama, Hiroaki Mutou