Patents by Inventor Norinaga Nakamura
Norinaga Nakamura 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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Publication number: 20240027357Abstract: A sparkle contrast correcting method includes a step of acquiring a first sparkle contrast that is caused by an anti-glare layer that is disposed on a surface of an electronic display and information that represents a first measurement condition, the first sparkle contrast being used as a comparison standard and being measured in the first measurement condition by using a first imaging lens that images emitted light from the anti-glare layer and a first two-dimensional image sensor on which the emitted light is imaged, a step of acquiring a second sparkle contrast that is caused by the anti-glare layer and information that represents a second measurement condition, the second sparkle contrast being used as a comparison target and being measured in the second measurement condition that differs from the first measurement condition by using a second imaging lens that images emitted light from the anti-glare layer and a second two-dimensional image sensor on which the emitted light is imaged, and a step of correcType: ApplicationFiled: November 24, 2020Publication date: January 25, 2024Inventors: Makio KURASHIGE, Gen FURUI, Kazutoshi ISHIDA, Hiroko SUZUKI, Masayuki TSUNEKAWA, Yukimitsu IWATA, Norinaga NAKAMURA, Shumpei NISHIO
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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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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: 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: 20210165283Abstract: The present invention aims to provide a liquid crystal display device highly suppressing occurrence of rainbow interference pattern in displayed images. The present invention is a liquid crystal display device including: a back light source, a liquid crystal cell, a color filter, a polarizer, and a polarizer protective film arranged in the stated order, wherein the polarizer protective film has a retardation of not less than 6000 nm, and a difference (nx?ny) of not less than 0.05 between a refractive index (nx) in a slow axis direction that is a highest refractive index direction and a refractive index (ny) in a fast axis direction that is orthogonal to the slow axis direction, and an absorption axis of the polarizer and the slow axis of the polarizer protective film are arranged to form an angle within a range of 0°±30° or 90°±30°.Type: ApplicationFiled: January 11, 2021Publication date: June 3, 2021Inventors: Takashi KURODA, Seiichi ISOJIMA, Norinaga NAKAMURA
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Patent number: 10921648Abstract: The present invention aims to provide a liquid crystal display device highly suppressing occurrence of rainbow interference pattern in displayed images. The present invention is a liquid crystal display device including: a back light source, a liquid crystal cell, a color filter, a polarizer, and a polarizer protective film arranged in the stated order, wherein the polarizer protective film has a retardation of not less than 6000 nm, and a difference (nx?ny) of not less than 0.05 between a refractive index (nx) in a slow axis direction that is a highest refractive index direction and a refractive index (ny) in a fast axis direction that is orthogonal to the slow axis direction, and an absorption axis of the polarizer and the slow axis of the polarizer protective film are arranged to form an angle within a range of 0°±30° or 90°±30°.Type: GrantFiled: April 3, 2018Date of Patent: February 16, 2021Assignee: Dai Nippon Printing Co., Ltd.Inventors: Takashi Kuroda, Seiichi Isojima, Norinaga Nakamura
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Patent number: 10353246Abstract: The present invention aims to provide a liquid crystal display device highly suppressing occurrence of rainbow interference pattern in displayed images. The present invention is a liquid crystal display device including: a back light source, a liquid crystal cell, a color filter, a polarizer, and a polarizer protective film arranged in the stated order, wherein the polarizer protective film has a retardation of not less than 6000 nm, and a difference (nx?ny) of not less than 0.05 between a refractive index (nx) in a slow axis direction that is a highest refractive index direction and a refractive index (ny) in a fast axis direction that is orthogonal to the slow axis direction, and an absorption axis of the polarizer and the slow axis of the polarizer protective film are arranged to form an angle within a range of 0°±30° or 90°±30°.Type: GrantFiled: January 7, 2016Date of Patent: July 16, 2019Assignee: Dai Nippon Printing Co., Ltd.Inventors: Takashi Kuroda, Seiichi Isojima, Norinaga Nakamura
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Publication number: 20180224702Abstract: The present invention aims to provide a liquid crystal display device highly suppressing occurrence of rainbow interference pattern in displayed images. The present invention is a liquid crystal display device including: a back light source, a liquid crystal cell, a color filter, a polarizer, and a polarizer protective film arranged in the stated order, wherein the polarizer protective film has a retardation of not less than 6000 nm, and a difference (nx?ny) of not less than 0.05 between a refractive index (nx) in a slow axis direction that is a highest refractive index direction and a refractive index (ny) in a fast axis direction that is orthogonal to the slow axis direction, and an absorption axis of the polarizer and the slow axis of the polarizer protective film are arranged to form an angle within a range of 0°±30° or 90°±30°.Type: ApplicationFiled: April 3, 2018Publication date: August 9, 2018Inventors: Takashi KURODA, Seiichi ISOJIMA, Norinaga NAKAMURA
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Publication number: 20180079189Abstract: 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: April 5, 2016Publication date: March 22, 2018Inventors: Yoshimasa OGAWA, Yukimitsu IWATA, Yuji SHIMIZU, Eiji OOISHI, Shoichiro OGUMI, Norinaga NAKAMURA
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Publication number: 20160116802Abstract: The present invention aims to provide a liquid crystal display device highly suppressing occurrence of rainbow interference pattern in displayed images. The present invention is a liquid crystal display device including: a back light source, a liquid crystal cell, a color filter, a polarizer, and a polarizer protective film arranged in the stated order, wherein the polarizer protective film has a retardation of not less than 6000 nm, and a difference (nx?ny) of not less than 0.05 between a refractive index (nx) in a slow axis direction that is a highest refractive index direction and a refractive index (ny) in a fast axis direction that is orthogonal to the slow axis direction, and an absorption axis of the polarizer and the slow axis of the polarizer protective film are arranged to form an angle within a range of 0°±30° or 90°±30°.Type: ApplicationFiled: January 7, 2016Publication date: April 28, 2016Inventors: Takashi Kuroda, Seiichi Isojima, Norinaga Nakamura
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Patent number: 9261728Abstract: The present invention aims to provide a liquid crystal display device highly suppressing occurrence of rainbow interference pattern in displayed images. The present invention is a liquid crystal display device including: a back light source, a liquid crystal cell, a color filter, a polarizer, and a polarizer protective film arranged in the stated order, wherein the polarizer protective film has a retardation of not less than 6000 nm, and a difference (nx?ny) of not less than 0.05 between a refractive index (nx) in a slow axis direction that is a highest refractive index direction and a refractive index (ny) in a fast axis direction that is orthogonal to the slow axis direction, and an absorption axis of the polarizer and the slow axis of the polarizer protective film are arranged to form an angle within a range of 0°±30° or 90°±30°.Type: GrantFiled: September 28, 2012Date of Patent: February 16, 2016Assignee: Dai Nippon Printing Co., Ltd.Inventors: Takashi Kuroda, Seiichi Isojima, Norinaga Nakamura
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Patent number: 9182619Abstract: A liquid crystal display device having high impact resistance and good display properties is provided. The liquid crystal display device includes a liquid crystal panel, a transparent substrate having rigidity, and a fusion bonding layer including a thermoplastic resin, where the transparent substrate is bonded to a viewing-side surface of the liquid crystal display panel with the fusion bonding layer interposed therebetween.Type: GrantFiled: October 27, 2010Date of Patent: November 10, 2015Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Makoto Honda, Norinaga Nakamura
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Publication number: 20120327341Abstract: A main object of the present invention is to provide a liquid crystal display device having high impact resistance and good display properties. In the present invention, the above-described object is attained by providing a liquid crystal display device comprising a liquid crystal panel, a transparent substrate having rigidity, and a fusion bonding layer comprising a thermoplastic resin, characterized in that the transparent substrate is bonded to a viewing-side surface of the liquid crystal display panel with the fusion bonding layer interposed therebetween.Type: ApplicationFiled: October 27, 2010Publication date: December 27, 2012Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Makoto Honda, Norinaga Nakamura
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Publication number: 20120243090Abstract: An antistatic laminate is provided that simplifies the production of a polarizing plate and, at the same time, can satisfactorily meets requirements of IPS and VA modes. The antistatic laminate is adapted for use in polarizing plates and comprises a light transparent base material and an antistatic layer provided on the light transparent base material. The antistatic layer is located between the polarizing element of the polarizing plate and a light transparent display site while using a polarizing plate.Type: ApplicationFiled: June 8, 2012Publication date: September 27, 2012Applicant: Dai Nippon Printing Co., Ltd.Inventors: Masataka NAKASHIMA, Norinaga NAKAMURA
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Patent number: 8003206Abstract: An optical laminate is provided, which prevents the occurrence of interface reflection and interference fringes at the interface between a light transparent base material and an antistatic layer has been effectively prevented. The optical laminate includes a light transparent base material and an antistatic layer and a hardcoat layer provided in that order on the light transparent base material. The hardcoat layer is formed on the antistatic layer using a composition for a hardcoat layer including a resin and a penetrative solvent. The penetrative solvent penetrates into the antistatic layer and the light transparent base material so that the antistatic agent contained in the antistatic layer disperses into the antistatic layer or the light transparent base material.Type: GrantFiled: September 22, 2005Date of Patent: August 23, 2011Assignee: Dai Nippon Printing Co., Ltd.Inventors: Masataka Nakashima, Takeshi Hirai, Norinaga Nakamura
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Patent number: 7947341Abstract: An optical laminate is provided which effectively prevents the occurrence of interface reflection and interference infringes by eliminating the interface between a light transparent base material and a hard coat layer. The optical laminate includes a light transparent base material, and an optical modulating layer and a hard coat layer provided on the light transparent base material, in that order. The optical modulating layer includes a component constituting the light transparent base material and a component constituting the hard coat layer.Type: GrantFiled: March 15, 2006Date of Patent: May 24, 2011Assignee: Dai Nippon Printing Co., Ltd.Inventors: Norinaga Nakamura, Tomoyuki Horio
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Publication number: 20100259711Abstract: An antistatic laminate is provided that simplifies the production of a polarizing plate and, at the same time, can satisfactorily meets requirements of IPS and VA modes. The antistatic laminate is adapted for use in polarizing plates and comprises a light transparent base material and an antistatic layer provided on the light transparent base material. The antistatic layer is located between the polarizing element of the polarizing plate and a light transparent display site while using a polarizing plate.Type: ApplicationFiled: June 25, 2010Publication date: October 14, 2010Applicant: Dai Nippon Printing Co., Ltd.Inventors: Masataka NAKASHIMA, Norinaga Nakamura
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Patent number: 7781068Abstract: A polarizing-plate-protecting film is provided, including a polyester film, such as a polyethylene terephthalate film, and an adhesion-facilitating layer formed on one surface of the polyester film, made of a hydrophilic cellulosic resin such as acetyl cellulose. On the other surface of the polyester film, a variety of functional layers, such as a hard coat layer, an anti-glaring layer, and an antireflection layer, are layered. The hard coat layer is a layer formed by curing, with an electron beam, an ionizing-radiation-curable resin into which an ultraviolet light absorber has been incorporated. A polyvinyl alcoholic polarizing film is laminated to the adhesion-facilitating layer of the polarizing-plate-protecting film with a water-based adhesive layer to form a polarizing plate.Type: GrantFiled: August 14, 2006Date of Patent: August 24, 2010Assignee: Dai Nippon Printing Co., Ltd.Inventors: Norinaga Nakamura, Hiroko Suzuki, Tetsuo Matsukura
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Patent number: 7645502Abstract: An anti-dazzling film is provided, which includes a triacetylcellulose film and an anti-dazzling layer provided on the triacetylcellulose film. The anti-dazzling layer includes a coating composition including an acrylic light transparent resin, plastic light transparent fine particles, and a leveling agent including a copolymer including (meth)acrylic acid repeating units containing at least one perfluoroalkyl group having 8 or more carbon atoms and (meth)acrylic acid repeating units having at least one bornane ring. A low-refractive index layer is provided on the anti-dazzling film to constitute an antireflection film.Type: GrantFiled: October 6, 2004Date of Patent: January 12, 2010Assignees: Dai Nippon Printing Co., Ltd., Fuji Photo Film Co., Ltd.Inventors: Koichi Mikami, Yukimitsu Iwata, Norinaga Nakamura, Naohiro Matsunaga
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Publication number: 20080266661Abstract: A polarizing plate having a first light transparent base material, and a polarizer and an optical laminate provided in that order on the first light transparent base material The first light transparent base material is a nonstretched base material, the optical laminate includes a second light transparent base material which is a stretched base material, and the optical laminate includes one or at least two optical property layers provided on the second light transparent base material The interface of the second light transparent base material and the optical property layer has been rendered absent by bringing the second light transparent base material and the optical property layer into contact with each other through an interface preventive adhesive layer.Type: ApplicationFiled: March 29, 2006Publication date: October 30, 2008Applicant: DAI NIPPON PRINTING CO., LTDInventor: Norinaga Nakamura