Patents by Inventor Hisamitsu Kameshima
Hisamitsu Kameshima 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: 20120184061Abstract: Disclosed are a sealing material sheet for a solar cell module and a method of manufacturing a solar cell module capable of reducing damage to a photoelectric conversion cell and leakage of a sealing material during manufacturing of a solar cell module, and easily manufacturing a high-quality solar cell module. A sealing material sheet for a solar cell module includes transparent resin (A) exhibiting an MFR (190° C., 2.16 kg load) of 10 to 20 g/10 min and transparent resin (B) exhibiting an MFR (190° C., 2.16 kg load) of 30 to 40 g/10 min. The mass ratio ? (=WA/WB) of the transparent resin (A) (mass: WA) and the transparent resin (B) (mass: WB) is 0.7 to 1.5. A solar cell module uses the sealing material sheet for a solar cell module.Type: ApplicationFiled: September 21, 2009Publication date: July 19, 2012Applicant: Toppan Printing Co., LtdInventors: Tatsu Hirata, Hisamitsu Kameshima, Atsushi Matsushima
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Patent number: 8163383Abstract: This invention provides an antiglare film which has high antiglare property and show little white-blurring. An embodiment of the present invention is an antiglare film having a binder matrix and particles on a transparent substrate. The binder matrix is an acrylic material. The particles are made of a copolymer of styrene and methyl methacrylate. The copolymerization ratio by weight of the styrene and methyl methacrylate is in the styrene:methacrylic acid=60:40 to 80:20 range. In addition, a quotient R/H, which is obtained by dividing an average diameter of the particles (R) by the average thickness of the antiglare layer (H), is in the 0.45-0.65 range. Moreover, a quotient wP/wB, which is obtained by dividing a content of the particles in the antiglare layer (wP) by a content of the binder matrix in the antiglare layer (wB) is in the 0.08-0/164.Type: GrantFiled: March 17, 2009Date of Patent: April 24, 2012Assignee: Toppan Printing Co., Ltd.Inventors: Hisamitsu Kameshima, Yusuke Tochigi
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Patent number: 7973895Abstract: An antiglare film includes an antiglare layer having a binder matrix, and particles A and particles B therein on a transparent substrate. A difference in density between the particles A and particles B is 0.2 g/cm3 or less. The quotient value (RA/H), which is obtained by division of the average diameter of the particles A (RA) by the average thickness of the antiglare layer (H), is in the 0.40-0.80 range. The quotient value (RB/RA), which is obtained by division of the average diameter of the particles B (RB) by the average diameter of the particles A (RA), is in the 0.20-0.60 range. The quotient value ((wA+wB)/wM), which is obtained by dividing the sum of the content of the particles A (wA) and that of the particles B (wB) in the antiglare layer (wA+wB) by the content of the binder matrix in the antiglare layer (wM), is in the 0.10-0.40 range. The quotient value (wB/wA), which is obtained by division of the content of the particles B (wB) by that of the particles A (wA) in the antiglare layer, is in the 0.Type: GrantFiled: October 6, 2008Date of Patent: July 5, 2011Assignee: Toppan Printing Co., Ltd.Inventor: Hisamitsu Kameshima
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Patent number: 7839474Abstract: An antiglare film includes an antiglare layer having particles and a binder matrix on a transparent base material. An antiglare film surface on the antiglare layer side has a concave-convex structure with a ten-point average roughness (Rz1) equal to or larger than 0.08 ?m and equal to or smaller than 0.10 ?m at a cutoff wavelength (?c) of 0.008 mm, the antiglare film surface on the antiglare layer side has a concave-convex structure with a ten-point average roughness (Rz2) equal to or larger than 1.90 ?m and equal to or smaller than 2.50 ?m at a cutoff wavelength (?c) of 0.8 mm, and the antiglare film surface on the antiglare layer side has a concave-convex structure with an average spacing (S) between local peaks equal to or larger than 0.033 mm and equal to or smaller than 0.050 mm at a cutoff wavelength (?c) of 0.8 mm.Type: GrantFiled: August 29, 2008Date of Patent: November 23, 2010Assignee: Toppan Printing Co., Ltd.Inventors: Hisamitsu Kameshima, Tomo Yoshinari, Yusuke Tochigi, Kae Takahashi, Takahiro Morinaga
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Patent number: 7824044Abstract: An antiglare film satisfies both (1) high antiglare property in the front direction and (2) absence of white blurring. One embodiment of the invention is an antiglare film provided with an antiglare layer on a transparent substrate, wherein the antiglare layer has a rugged structure on the surface opposite to the transparent substrate; the 5° reflectance of the antiglare film surface on the antiglare layer side is in a range of from 0.30% to 0.70%; the antiglare film surface on the antiglare layer side is provided with a rugged structure having arithmetic average roughness (Ra1) in the range of from 0.020 ?m to 0.040 ?m when a cutoff wavelength (?C) is 0.008 mm; and the antiglare film surface on the antiglare layer side is provided with a rugged structure having arithmetic average roughness (Ra2) in the range of from 0.35 ?m to 0.45 ?m when a cutoff wavelength (?C) is 0.8 mm.Type: GrantFiled: December 12, 2007Date of Patent: November 2, 2010Assignee: Toppan Printing Co., Ltd.Inventors: Yusuke Tochigi, Tomo Yoshinari, Kae Takahashi, Hisamitsu Kameshima
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Patent number: 7807238Abstract: One embodiment of the present invention is disclosed. A method of manufacturing an antiglare film comprising: forming a film by applying a coating liquid to a transparent substrate; and forming an antiglare layer by curing the film by irradiating the film with ionizing radiation, wherein the coating liquid includes a binder matrix forming material including an ionizing radiation-curable material, particle A and particle B, wherein difference in refractive index between either or both of particle A and particle B, and a cured binder matrix is equal to or more than 0.03, and wherein difference between average refractive index of particle A and particle B calculated based on respective weight of particle A and particle B and refractive index of a binder matrix is equal to or less than 0.03.Type: GrantFiled: June 25, 2007Date of Patent: October 5, 2010Assignee: Toppan Printing Co., Ltd.Inventors: Kae Takahashi, Hisamitsu Kameshima, Yasuhiro Miyauchi
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Patent number: 7708414Abstract: An antiglare film is disclosed including a transparent substrate; and an antiglare layer including a binder matrix and a particle, wherein reflectivity of 5° angle of a surface of the antiglare film which surface is in the antiglare layer side among both sides of the antiglare film is 2.4-4.4%, wherein image clarity (C(0.5)+C(1.0)+C(2.0)) measured by reflection method on an antiglare layer side is 20-70%, and wherein difference in refractive index between the binder matrix and the particle is equal to or less than 0.07.Type: GrantFiled: September 28, 2007Date of Patent: May 4, 2010Assignee: Toppan Printing Co., Ltd.Inventors: Hisamitsu Kameshima, Tomoya Oohira, Tomo Yoshinari, Kae Takahashi
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Publication number: 20090244708Abstract: This invention provides an antiglare film which has high antiglare property and show little white-blurring. An embodiment of the present invention is an antiglare film having a binder matrix and particles on a transparent substrate. The binder matrix is an acrylic material. The particles are made of a copolymer of styrene and methyl methacrylate. The copolymerization ratio by weight of the styrene and methyl methacrylate is in the styrene:methacrylic acid=60:40 to 80:20 range. In addition, a quotient R/H, which is obtained by dividing an average diameter of the particles (R) by the average thickness of the antiglare layer (H), is in the 0.45-0.65 range. Moreover, a quotient wP/wB, which is obtained by dividing a content of the particles in the antiglare layer (wP) by a content of the binder matrix in the antiglare layer (wB) is in the 0.08-0/164.Type: ApplicationFiled: March 17, 2009Publication date: October 1, 2009Applicant: Toppan Printing Co., Ltd.Inventors: Hisamitsu Kameshima, Yusuke Tochigi
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Patent number: 7589897Abstract: An antiglare film comprises a transparent substrate; and an antiglare layer on the transparent substrate, the layer including a binder matrix, organic particles A and organic particles B having an average particle diameter smaller than an average particle diameter of particles A, organic particles A and organic particles B dispersed in the binder matrix. An antiglare film having of the present invention can have the following features: good antiglare property; no white blur; high abrasion resistant property; less dazzling; and not whitened.Type: GrantFiled: December 12, 2007Date of Patent: September 15, 2009Assignee: Toppan Printing Co., Ltd.Inventors: Hisamitsu Kameshima, Tomo Yoshinari, Kae Takahashi, Yusuke Tochigi
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Patent number: 7542118Abstract: An antiglare film is disclosed comprising a transparent substrate and an antiglare layer including a binder matrix and a particle, wherein center line average roughness Ra of a surface of an antiglare film which surface is on an antiglare layer side among both sides of an antiglare film is 0.06-0.17 ?m, wherein reflectivity of 5° angle of the surface is 2.4-4.4%, and wherein difference in refractive index between the binder matrix and the particle is equal to or less than 0.07.Type: GrantFiled: September 6, 2007Date of Patent: June 2, 2009Assignee: Toppan Printing Co., Ltd.Inventors: Yasuhiro Miyauchi, Yu Matsuura, Hisamitsu Kameshima
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Patent number: 7525731Abstract: An antiglare light diffusing member is provided comprising a transparent base material and an antiglare light diffusing layer including a binder matrix, a plurality of particles (A) and a plurality of particles (B). A front surface of the antiglare light diffusing layer should not be flat. The difference between a refractive index of the plurality of particles (A) and a refractive index of the binder matrix can be less than or equal to 0.02. The difference between a refractive index of the plurality of particles (B) and a refractive index of the binder matrix can be 0.03-0.2. An average particle diameter of the plurality of particles (A) can be bigger than an average film thickness of the antiglare light diffusing layer. An average particle diameter of the plurality of particles (B) is smaller than an average film thickness of the antiglare light diffusing layer.Type: GrantFiled: May 22, 2007Date of Patent: April 28, 2009Assignee: Toppan Printing Co., Ltd.Inventors: Jun Aro, Hisamitsu Kameshima
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Publication number: 20090096972Abstract: An antiglare film includes an antiglare layer having a binder matrix, and particles A and particles B therein on a transparent substrate. A difference in density between the particles A and particles B is 0.2 g/cm3 or less. The quotient value (RA/H), which is obtained by division of the average diameter of the particles A (RA) by the average thickness of the antiglare layer (H), is in the 0.40-0.80 range. The quotient value (RB/RA), which is obtained by division of the average diameter of the particles B (RB) by the average diameter of the particles A (RA), is in the 0.20-0.60 range. The quotient value ((wA+wB)/wM), which is obtained by dividing the sum of the content of the particles A (wA) and that of the particles B (wB) in the antiglare layer (wA+wB) by the content of the binder matrix in the antiglare layer (wM), is in the 0.10-0.40 range. The quotient value (wB/wA), which is obtained by division of the content of the particles B (wB) by that of the particles A (wA) in the antiglare layer, is in the 0.Type: ApplicationFiled: October 6, 2008Publication date: April 16, 2009Applicant: Toppan Printing Co., Ltd.Inventor: Hisamitsu Kameshima
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Publication number: 20090080080Abstract: An antiglare film in which an antiglare layer containing particles and a binder matrix obtained by curing a material curable with ionizing radiation is directly provided on a triacetyl cellulose film. The antiglare layer is formed by a process of directly coating a coating liquid for forming an antiglare layer that contains at least the particles, the material curable with ionizing radiation, and a solvent on the triacetyl cellulose film and forming a coating film on the triacetyl cellulose film, a process of drying the coating film, and a process of curing the coating film by ionizing radiation. A haze difference (Hz(T)?Hz(P)) between a haze value (Hz(T)) of the antiglare layer formed on the triacetyl cellulose film and a haze value (Hz(P)) of an antiglare layer directly formed on a polyethylene terephthalate film by using the coating liquid for forming an antiglare layer under the same conditions as the antiglare layer formed on the triacetyl cellulose film is 1.3% or more to 3.2% or less.Type: ApplicationFiled: May 21, 2008Publication date: March 26, 2009Applicant: Toppan Printing Co., Ltd.Inventors: Kae Takahashi, Hisamitsu Kameshima, Tomo Yoshinari, Yusuke Tochigi, Takahiro Morinaga
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Publication number: 20090059377Abstract: An antiglare film includes an antiglare layer having particles and a binder matrix on a transparent base material. An antiglare film surface on the antiglare layer side has a concave-convex structure with a ten-point average roughness (Rz1) equal to or larger than 0.08 ?m and equal to or smaller than 0.10 ?m at a cutoff wavelength (?c) of 0.008 mm, the antiglare film surface on the antiglare layer side has a concave-convex structure with a ten-point average roughness (Rz2) equal to or larger than 1.90 ?m and equal to or smaller than 2.50 ?m at a cutoff wavelength (?c) of 0.8 mm, and the antiglare film surface on the antiglare layer side has a concave-convex structure with an average spacing (S) between local peaks equal to or larger than 0.033 mm and equal to or smaller than 0.050 mm at a cutoff wavelength (?c) of 0.8 mm.Type: ApplicationFiled: August 29, 2008Publication date: March 5, 2009Applicant: Toppan Printing Co.Inventors: Hisamitsu Kameshima, Tomo Yoshinari, Yusuke Tochigi, Kae Takahashi, Takahiro Morinaga
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Publication number: 20090002832Abstract: An antiglare film satisfies both (1) high antiglare property in the front direction and (2) absence of white blurring. One embodiment of the invention is an antiglare film provided with an antiglare layer on a transparent substrate, wherein the antiglare layer has a rugged structure on the surface opposite to the transparent substrate; the 5° reflectance of the antiglare film surface on the antiglare layer side is in a range of from 0.30% to 0.70%; the antiglare film surface on the antiglare layer side is provided with a rugged structure having arithmetic average roughness (Ra1) in the range of from 0.020 ?m to 0.040 ?m when a cutoff wavelength (?C) is 0.008 mm; and the antiglare film surface on the antiglare layer side is provided with a rugged structure having arithmetic average roughness (Ra2) in the range of from 0.35 ?m to 0.45 ?m when a cutoff wavelength (c) is 0.8 mm.Type: ApplicationFiled: December 12, 2007Publication date: January 1, 2009Applicant: Toppan Printing Co., Ltd.Inventors: Yusuke Tochigi, Tomo Yoshinari, Kae Takahashi, Hisamitsu Kameshima
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Publication number: 20080316602Abstract: An antiglare film comprises a transparent substrate; and an antiglare layer on the transparent substrate, the layer including a binder matrix, organic particle A and organic particle B having an average particle diameter smaller than an average particle diameter of particle A, organic particle A and organic particle B dispersed in the binder matrix. An antiglare film having of the present invention can have the following features: good antiglare property; no white blur; high abrasion resistant property; less dazzling; and not whitened.Type: ApplicationFiled: December 12, 2007Publication date: December 25, 2008Applicant: Toppan Printing Co., Ltd.Inventors: Hisamitsu Kameshima, Tomo Yoshinari, Kae Takahashi, Yusuke Tochigi
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Publication number: 20080212005Abstract: An antiglare film is disclosed comprising a transparent substrate and an antiglare layer including a binder matrix and a particle, wherein center line average roughness Ra of a surface of an antiglare film which surface is on an antiglare layer side among both sides of an antiglare film is 0.06-0.17 ?m, wherein reflectivity of 5° angle of the surface is 2.4-4.4%, and wherein difference in refractive index between the binder matrix and the particle is equal to or less than 0.07.Type: ApplicationFiled: September 6, 2007Publication date: September 4, 2008Applicant: Toppan Printing Co., Ltd.Inventors: Yasuhiro Miyauchi, Yu Matsuura, Hisamitsu Kameshima
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Publication number: 20080213513Abstract: The present invention includes an antiglare film including an antiglare layer which layer includes a silica particle and a binder matrix, wherein refractive index of the silica particle is 1.46-1.50, wherein the silica particle is an amorphous silica which includes an aggregate of fine silica particles, wherein average particle diameter of the silica fine particles is 0.003-0.1 ?m, wherein average particle diameter of the silica particle is 1.0-3.0 ?m, wherein the binder matrix is formed by curing a binder matrix curable material with ionizing radiation, and wherein the binder matrix curable material includes trifunctional acrylic monomer and tetrafunctional acrylic monomer of 80 part by weight or more based on a binder matrix forming material of 100 part by weight.Type: ApplicationFiled: September 6, 2007Publication date: September 4, 2008Applicant: Toppan Printing Co., Ltd.Inventors: Hisamitsu Kameshima, Kae Takahashi, Yasuhiro Miyauchi, Yu Matsuura
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Publication number: 20080212190Abstract: An antiglare film is disclosed including a transparent substrate; and an antiglare layer including a binder matrix and a particle, wherein reflectivity of 5° angle of a surface of the antiglare film which surface is in the antiglare layer side among both sides of the antiglare film is 2.4-4.4%, wherein image clarity (C(0.5)+C(1.0)+C(2.0)) measured by reflection method on an antiglare layer side is 20-70%, and wherein difference in refractive index between the binder matrix and the particle is equal to or less than 0.07.Type: ApplicationFiled: September 28, 2007Publication date: September 4, 2008Applicant: Toppan Printing Co., Ltd.Inventors: Hisamitsu Kameshima, Tomoya Oohira, Tomo Yoshinari, Kae Takahashi
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Publication number: 20080193680Abstract: One embodiment of the present invention is disclosed. A method of manufacturing an antiglare film comprising: forming a film by applying a coating liquid to a transparent substrate; and forming an antiglare layer by curing the film by irradiating the film with ionizing radiation, wherein the coating liquid includes a binder matrix forming material including an ionizing radiation-curable material, particle A and particle B, wherein difference in refractive index between either or both of particle A and particle B, and a cured binder matrix is equal to or more than 0.03, and wherein difference between average refractive index of particle A and particle B calculated based on respective weight of particle A and particle B and refractive index of a binder matrix is equal to or less than 0.03.Type: ApplicationFiled: June 25, 2007Publication date: August 14, 2008Applicant: Toppan Printing Co., Ltd.Inventors: Kae Takahashi, Hisamitsu Kameshima, Yasuhiro Miyauchi