Patents Assigned to Nippon Electric Glass Co., Ltd.
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Patent number: 11975519Abstract: Provided is a method of manufacturing plate-like members whereby shape defects in the plate-like members can be prevented to increase production yield and a laminate for use in the method of manufacturing plate-like members.Type: GrantFiled: October 25, 2019Date of Patent: May 7, 2024Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Tomomichi Kunimoto, Hideki Asano
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Patent number: 11971617Abstract: A Faraday rotator includes a magnetic circuit including first to third magnetic materials each provided with a through hole through which light passes, and a Faraday element disposed in the through hole. When a direction where light passes through the through hole is defined as a direction of an optical axis, the first magnetic material is magnetized in a direction perpendicular to the direction of the optical axis, the second magnetic material is magnetized in a direction parallel to the direction of the optical axis, and the third magnetic material is magnetized in a direction perpendicular to the direction of the optical axis, and a length of the Faraday element along the direction of the optical axis is shorter than a length of the second magnetic material along the direction of the optical axis.Type: GrantFiled: March 7, 2019Date of Patent: April 30, 2024Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventor: Futoshi Suzuki
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Patent number: 11964908Abstract: The present invention provides a tempered glass sheet having a compressive stress layer in a surface thereof, the tempered glass sheet including as a glass composition, in terms of mol %, 50% to 80% of SiO2, 8% to 25% of Al2O3, 0% to 10% of B2O3, 3% to 15% of Li2O, 3% to 21% of Na2O, 0% to 10% of K2O, 0% to 10% of MgO, 0% to 10% of ZnO, and 0% to 15% of P2O5.Type: GrantFiled: December 24, 2019Date of Patent: April 23, 2024Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Ken Yuki, Ryota Suzuki, Tomonori Ichimaru, Kiyotaka Kinoshita, Yuta Nagano
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Patent number: 11964894Abstract: A glass roll of band-shaped glass film is free of skew and single slack when a roll-to-roll mode is used. The band-shaped glass film is wound into a roll shape and has creases formed thereon. The band-shaped glass film includes an effective section with two side edges in a width direction extending parallel to each other, and leading and trailing end portions extending parallel to the width direction. When a length from the leading end portion to the trailing end portion along a surface of the effective section is measured along each of a first position along one side edge and a second position along another side edge, a difference between the first and second measurement lengths is 400 ppm or less of a longer measurement length of the first and second measurement lengths.Type: GrantFiled: January 29, 2019Date of Patent: April 23, 2024Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Hiroki Mori, Koichi Mori
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Publication number: 20240115461Abstract: A tube glass of the present invention includes an alkali silicate glass, in which a glass composition is substantially free of B2O3 and Al2O3, and a loss in mass ? (mg/dm2) in an alkali resistance test in accordance with ISO 695 (199105-15) is classified as Class A1.Type: ApplicationFiled: September 30, 2021Publication date: April 11, 2024Applicant: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Miki KIMURA, Genta ICHINO, Yutaro WAKAI
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Patent number: 11953652Abstract: Disclosed is an article that includes an antiglare surface. When measuring surface shapes of six adjacent areas obtained by dividing the antiglare surface into dimensions of 103 ?m×118 ?m, the antiglare surface includes a surface shape such that an average value of an arithmetic mean height Sa of the six areas is 20 nm or greater and a variation coefficient CV1, which is obtained from the average value and a standard deviation of the arithmetic mean height Sa of the six areas, is 0.020 or greater.Type: GrantFiled: April 2, 2019Date of Patent: April 9, 2024Assignee: Nippon Electric Glass Co., Ltd.Inventor: Toshiyuki Kajioka
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Patent number: 11946133Abstract: A production method for a glass roll includes a start preparation step (S1) of feeding-out a first lead film (LF1) coupled to a starting end portion (GFa) of a first glass film (GF1) from an unwinding device (3) and allowing a winding device (8) to wind the first lead film (LF1 after passing of the first lead film (LF1) through a thermal film-forming device (4),). The start preparation step (S1) includes a temperature increasing step of causing the thermal film-forming device (4) to be increased in temperature to a film-forming temperature. The first glass film (GF1) reaches the thermal film-forming device (4) before the thermal film-forming device (4) is increased in temperature to the film-forming temperature.Type: GrantFiled: May 22, 2020Date of Patent: April 2, 2024Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Hiroki Mori, Takayoshi Saito, Naotoshi Inayama, Riku Yamashiro
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Patent number: 11939258Abstract: A glass powder of the present invention is a glass powder, which is formed of alkali borosilicate glass, wherein the glass powder includes 0.1 mol % to 1.0 mol %, provided that 1.0 mol % is excluded, of Li2O+Na2O+K2O in a glass composition, has a molar ratio Li2O/(Li2O+Na2O+K2O) of from 0.35 to 0.65, a molar ratio Na2O/(Li2O+Na2O+K2O) of from 0.25 to 0.55, and a molar ratio K2O/(Li2O+Na2O+K2O) of from 0.025 to 0.20, and has a specific dielectric constant at 25° C. and 16 GHz of from 3.5 to 4.0 and a dielectric dissipation factor at 25° C. and 16 GHz of 0.0020 or less.Type: GrantFiled: June 19, 2020Date of Patent: March 26, 2024Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventor: Yoshio Umayahara
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Patent number: 11931924Abstract: Provided is a base (1) for a flexible mold that is to be wound in an endless manner, and the base includes: an intermediate sheet (2); and first and second resin sheets (3, 5) bonded to both main surfaces of the intermediate sheet (2) through intermediation of first and second bonding layers (4, 6), respectively. The intermediate sheet (2) includes: first and second spacer sheets (7, 8), which are each made of a resin, and are arranged at one end portion and another end portion in a winding direction, respectively; and a glass sheet (9) arranged between those spacer sheets (7, 8).Type: GrantFiled: August 20, 2019Date of Patent: March 19, 2024Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventor: Koji Kuwahara
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Patent number: 11932572Abstract: A glass sheet of the present invention is characterized in that: the glass sheet has a refractive index nd of from 1.55 to 2.30; an angle formed by a principal surface and an end surface is from 85° to 90°; and the end surface has a surface roughness Ra of 1 ?m or less.Type: GrantFiled: June 18, 2019Date of Patent: March 19, 2024Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Atsushi Mushiake, Takashi Murata, Ryota Suzuki
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Patent number: 11919806Abstract: Provided is a glass having an excellent infrared transmittance and suitable for use in infrared sensors. An infrared transmitting glass containing, in terms of % by mole, over 0 to 50% Ge, over 0 to 50% Ga, over 0 to 50% Si, 20 to 90% Te, 0 to 40% Ag+Al+Ti+Cu+In+Sn+Bi+Cr+Sb+Zn+Mn, and 0 to 40% F+Cl+Br+I.Type: GrantFiled: January 18, 2019Date of Patent: March 5, 2024Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Yoshimasa Matsushita, Fumio Sato
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Patent number: 11912621Abstract: Provided is a wavelength conversion member that is less decreased in luminescence intensity with time by irradiation with light of an LED or LD and a light emitting device using the wavelength conversion member. A wavelength conversion member is formed of an inorganic phosphor dispersed in a glass matrix, wherein the glass matrix contains, in % by mole, 30 to 85% SiO2, 0 to 20% B2O3, 0 to 25% Al2O3, 0 to 3% Li2O, 0 to 3% Na2O, 0 to 3% K2O, 0 to 3% Li2O+Na2O+K2O, 0 to 35% MgO, 0 to 35% CaO, 0 to 35% SrO, 0 to 35% BaO, 0.1 to 45% MgO+CaO+SrO+BaO, and 0 to 4% ZnO, and the inorganic phosphor is at least one selected from the group consisting of an oxide phosphor, a nitride phosphor, an oxynitride phosphor, a chloride phosphor, an oxychloride phosphor, a halide phosphor, an aluminate phosphor, and a halophosphate phosphor.Type: GrantFiled: January 10, 2023Date of Patent: February 27, 2024Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Naoki Fujita, Takashi Murata
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Patent number: 11884583Abstract: The present invention relates to a method of producing a colored glass for a pharmaceutical container by which the transmittance of a glass to be obtained is easily controlled so as to satisfy the standards of the Japanese Pharmacopoeia.Type: GrantFiled: June 4, 2018Date of Patent: January 30, 2024Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventor: Yuki Yokota
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Patent number: 11884577Abstract: Provided is a display cover member that enables realization of a display having less reflection of the background and excellent anti-sparkle properties. The display cover member has a feature that: one of principal surfaces is formed of an uneven surface; a mean width of roughness profile elements (RSm) of the uneven surface defined by JIS B 0601-2013 is not less than 1 ?m and not more than 30 ?m; and a ratio ?/Rku between an average inclined angle (?) of the roughness profile of the uneven surface and a kurtosis of the roughness profile (Rku) of the uneven surface defined by JIS B 0601-2013 is not less than 0.40° and not more than 1.08°.Type: GrantFiled: June 5, 2019Date of Patent: January 30, 2024Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Koji Ikegami, Tomohiro Nagakane
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Patent number: 11884576Abstract: Provided is a display cover member that enables realization of a display having less reflection of the background and excellent anti-sparkle properties. The display cover member has a feature that: one of principal surfaces is formed of an uneven surface; a mean width of roughness profile elements (RSm) of the uneven surface defined by JIS B 0601-2013 is not less than 1 ?m and not more than 30 ?m; and a ratio ?/Rku between an average inclined angle (?) of the roughness profile of the uneven surface and a kurtosis of the roughness profile (Rku) of the uneven surface defined by JIS B 0601-2013 is not less than 0.40° and not more than 1.08°.Type: GrantFiled: September 7, 2016Date of Patent: January 30, 2024Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Koji Ikegami, Tomohiro Nagakane
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Publication number: 20240019668Abstract: An infrared imaging lens (1) includes a plurality of lenses (L1 to L3) which are disposed in respective positions, the plurality of lenses each being made of glass having a refractive index of 2.8 to 4.0 measured at a wavelength of 10 ?m, the infrared imaging lens having an image circle having a diameter which is 0.7 times to 1.3 times a focal length of the infrared imaging lens.Type: ApplicationFiled: November 22, 2021Publication date: January 18, 2024Applicant: Nippon Electric Glass Co.,Ltd.Inventors: Yoshimasa MATSUSHITA, Fumio SATO, Nobuo HORI
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Patent number: 11871676Abstract: A hermetic package of the present invention includes a package base and a glass cover hermetically sealed with each other via a sealing material layer, wherein the package base includes a base part and a frame part formed on the base part, wherein the package base has an internal device housed within the frame part, wherein the sealing material layer is arranged between a top of the frame part of the package base and the glass cover, and wherein an end portion of the sealing material layer protrudes laterally in an arc shape in sectional view.Type: GrantFiled: February 5, 2018Date of Patent: January 9, 2024Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Toru Shiragami, Hiroki Fujita
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Patent number: 11852785Abstract: A transparent article in which sparkling on an anti-glare surface or other roughened relief surface is suppressed. The transparent article is provided with a transparent substrate, and a roughened relief surface provided to at least one surface of the transparent substrate. The relief surface has a surface roughness Sq of 50 nm or less measured in a spatial period of 20 ?m or greater in the transverse direction.Type: GrantFiled: April 6, 2018Date of Patent: December 26, 2023Assignee: Nippon Electric Glass Co., Ltd.Inventors: Toshiyuki Kajioka, Koji Ikegami
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Publication number: 20230406754Abstract: The glass contains a Ti component in a glass composition, in which a Ti3+ ion content is 80 ppm or less.Type: ApplicationFiled: December 23, 2021Publication date: December 21, 2023Applicant: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Tamio ANDO, Shunsuke FUJITA
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Publication number: 20230406750Abstract: Provided is a glass strand that, when mixed with mortar, is less likely to decrease the fluidity of the mortar and can 5 effectively increase the mechanical strength of a cementitious material. A glass strand includes: a plurality of glass filaments containing 12% by mass or more ZrO2 and 10% by mass or more R2O (where R represents at least one selected from Li, Na, and K); and a coating covering surfaces of the glass filaments, 10 wherein the coating contains polyvinyl acetate resin and polyether-based urethane resin, and wherein a content of the polyether-based urethane resin in the coating is, in solid content ratio, not less than 10% by mass and not more than 90% by mass.Type: ApplicationFiled: August 31, 2023Publication date: December 21, 2023Applicant: Nippon Electric Glass Co., LTD.Inventors: Shinji Nishibori, Jiro Abe