Patents by Inventor Seiji Inaba

Seiji Inaba 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).

  • Publication number: 20230357091
    Abstract: The present invention relates to a laminated member, including: a glass member having a linear transmittance at a wavelength of 850 nm of 80% or more; a bonding layer containing a resin and lying on the glass member; and a Si—SiC member lying on the bonding layer, in which the glass member includes predetermined amounts of SiO2, Al2O3, B2O3, and P2O5, the Si—SiC member has an average linear expansion coefficient ? at 20 to 200° C. of 2.85 to 4.00 ppm/° C., and has an average linear expansion coefficient ? at 20 to 200° C. of 1.50 to 5.00 ppm/° C., and the laminated member has an absolute value |???|, which is a value obtained by subtracting ? from ?, of 2.00 ppm/° C. or less.
    Type: Application
    Filed: July 18, 2023
    Publication date: November 9, 2023
    Applicant: AGC Inc.
    Inventors: Yu HANAWA, Shuhei OGAWA, Seiji INABA
  • Publication number: 20230192540
    Abstract: The present invention relates to a chemically strengthened glass having a haze value in terms of a thickness of 0.7 mm of 0.5% or less, having a surface compressive stress value of 400 MPa or more, having a depth of a compressive stress layer of 70 ?m or more, having an ST limit of 18000 MPa·?m to 30000 MPa·?m, and being a glass ceramic including at least one of a Li3PO4 crystal and a Li4SiO4 crystal, or including a solid solution crystal of Li3PO4 or Li4SiO4 or a solid solution of both Li3PO4 and Li4SiO4.
    Type: Application
    Filed: February 10, 2023
    Publication date: June 22, 2023
    Applicant: AGC Inc.
    Inventors: Hitomi FURUTA, Qing LI, Shigeki SAWAMURA, Shusaku AKIBA, Seiji INABA
  • Publication number: 20230135358
    Abstract: Glass contains, in mol percentage on an oxide basis, SiO2: 35% to 60%, B2O3: 0.8% to 8%, Al2O3: 6% to 21%, and MgO: 17% to 44%. Additionally, (MgO/Al2O3)?1 is satisfied, a measured Madelung constant m calculated by an expression (1A) is equal to or larger than 1.05, and a thermal expansion factor as a ratio of a measured value ? of a linear thermal expansion coefficient to a calculated value ?cal of a linear thermal expansion coefficient calculated from composition is equal to or smaller than 0.7. Herein, E is a measured value of a Young's modulus of the glass, Vp is an average atomic packing factor of the glass, and Gt is average bond dissociation energy of the glass.
    Type: Application
    Filed: October 26, 2022
    Publication date: May 4, 2023
    Applicant: AGC Inc.
    Inventors: Mikio NAGANO, Seiji INABA, Rikiya KADO, Kiyoshi TAMAI, Yuha KOBAYASHI
  • Publication number: 20230107722
    Abstract: The present invention relates to a laminated member including: a glass member having a linear transmittance at a wavelength of 850 nm of 80% or more; a bonding layer including a resin and lying on the glass member; and a Si—SiC member lying on the bonding member, in which the Si—SiC member has an average linear expansion coefficient ? at from 20° C. to 200° C. of from 2.85 ppm/° C. to 4.00 ppm/° C.
    Type: Application
    Filed: December 8, 2022
    Publication date: April 6, 2023
    Applicant: AGC Inc.
    Inventors: Yu HANAWA, Shuhei OGAWA, Seiji INABA, Hiroyuki YAMAMOTO
  • Publication number: 20230103501
    Abstract: The present invention relates to a glass including, represented by mole percent based on oxides: from 52% to 80% of SiO2; from 5% to 30% of B2O3; from 2% to 30% of Al2O3; from 0.1% to 11% of P2O5; and from 0.0001% to 5% of Na2O, in which the glass has an average thermal expansion coefficient ? at from 50° C. to 350° C. of from 5×10?7/° C. or more and 33×10?7/° C. or less.
    Type: Application
    Filed: December 8, 2022
    Publication date: April 6, 2023
    Applicant: AGC Inc.
    Inventors: Hiroyuki YAMAMOTO, Shuhei OGAWA, Seiji INABA
  • Publication number: 20220390604
    Abstract: Provided are a TOF apparatus, a TOF system, and an installation status notification method that can automatically determine the quality of installation and reduce the loss of performing re-construction work. The TOF apparatus includes a processor. The processor executes an anomaly determination program, which is a program used to determine whether the installation state is normal or anomaly. By executing the anomaly determination program, the processor determines whether the installed state is normal or anomaly based on at least one of the viewpoints of the installation angle, the influence of interference, the field of view, and the measurement distance, and notifies the determination result.
    Type: Application
    Filed: April 13, 2022
    Publication date: December 8, 2022
    Inventor: Seiji INABA
  • Publication number: 20220144685
    Abstract: Suppressing deflection and reducing weight are to be achieved. A supporting glass substrate has a ratio of a Young's modulus (GPa) to a density (g/cm3) that is 37.0 (GPa·cm3/g) or more and the ratio has a value larger than a ratio calculation value, the ratio calculation value being a ratio of a Young's modulus (GPa) calculated from a composition to a density (g/cm3). The ratio calculation value is represented by the following expression: ?=2·?{(Vi·Gi)/Mi·Xi}, where, in the expression, Vi is a filling parameter of a metal oxide contained in the supporting glass substrate, Gi is a dissociation energy of a metal oxide contained in the supporting glass substrate, Mi is a molecular weight of a metal oxide contained in the supporting glass substrate, and Xi is a molar ratio of a metal oxide contained in the supporting glass substrate.
    Type: Application
    Filed: January 27, 2022
    Publication date: May 12, 2022
    Applicant: AGC Inc.
    Inventors: Mikio NAGANO, Seiji INABA, Yasunari SAITO, Kiyoshi TAMAI, Kazutaka ONO, Yuha KOBAYASHI
  • Patent number: 11274981
    Abstract: A stress measurement device for strengthened glass includes a polarization phase difference variable member configured to vary a polarization phase difference of a laser light by one wavelength of the laser light or more; an imaging element configured to image a plurality of times at a predetermined time interval a scattered light emitted according to the laser light with the varied polarization phase difference entering the strengthened glass, and obtain a plurality of images; and an arithmetic unit configured to measure a periodic change in luminance of the scattered light using the plurality of images, calculate a change in a phase of the change in luminance, and calculate a stress distribution in a depth direction from a surface of the strengthened glass based on the change in the phase.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: March 15, 2022
    Assignees: ORIHARA INDUSTRIAL CO., LTD., AGC Inc.
    Inventors: Shuji Orihara, Yoshio Orihara, Satoshi Ogami, Seiji Inaba
  • Publication number: 20210270971
    Abstract: At a preparatory step for correction, in a state that a reflective tape made with a retroreflective material is pasted in advance onto a floor surface of a measurement space in a direction away from the distance-measuring device, a distance La to an inside area of the reflective tape, and a distance Lb to an outside area of the reflective tape adjacent to the inside area are measured by the distance-measuring device, while measurement positions Y are being scanned along the reflective tape. A correction formula for converting the distance Lb to the distance La is created from a relationship between the distance La and the distance Lb obtained at each measurement position Y. At an actual measurement step, a distance (actual measurement value x) to the target object measured by the distance-measuring device is corrected in accordance with the correction formula, and a measurement-distance corrected value y is calculated.
    Type: Application
    Filed: November 6, 2020
    Publication date: September 2, 2021
    Inventors: Seiji INABA, Katsumi ITO
  • Publication number: 20210231783
    Abstract: As a preparatory step for correction, a measurement sample is placed such that a distance of the measurement sample from the distance measuring device becomes a set value L1, a distance to the measurement sample 3? is measured by the distance measuring device, and a measurement value L2 is obtained. The measurement value L2 corresponding to a plurality of values of the set value L1 is acquired, while the set value L1 is changed to the plurality of values, and a correction formula for converting the measurement value L2 to the set value L1 is created on a basis of a relationship between the acquired set value L1 and measurement value L2. As an actual measurement step, a distance (actual measurement value x) to the target object 3 measured by the distance measuring device is corrected in accordance with the correction formula, and a measurement-distance corrected value y is calculated.
    Type: Application
    Filed: November 2, 2020
    Publication date: July 29, 2021
    Inventors: Katsumi ITO, Seiji INABA
  • Patent number: 11028005
    Abstract: To provide a glass plate having a high Young's modulus and a high devitrification viscosity. A glass includes, in mol % based on oxides: SiO2 of 30.0 to 50.0%; B2O3 of 10.0 to 30.0%; Al2O3 of 10.0 to 30.0%; Y2O3 of 3.0 to 17.0%; and Gd2O3 of 3.5 to 17.0%, in which (Gd2O3+Y2O3) is from 16.0 to 22.0%, and (Gd2O3/Y2O3) is from 0.15 to 7.0.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: June 8, 2021
    Assignee: AGC INC.
    Inventors: Seiji Inaba, Kazutaka Ono
  • Patent number: 11021389
    Abstract: A supporting glass substrate has a ratio of a Young's modulus (GPa) to a density (g/cm3) that is 37.0 (GPa·cm3/g) or more and the ratio has a value larger than a ratio calculation value, the ratio calculation value being a ratio of a Young's modulus (GPa) calculated from a composition to a density (g/cm3). The ratio calculation value is represented by the following expression: ?=2·?{(Vi·Gi)/Mi·Xi}, where, in the expression, Vi is a filling parameter of a metal oxide contained in the supporting glass substrate, Gi is a dissociation energy of a metal oxide contained in the supporting glass substrate, Mi is a molecular weight of a metal oxide contained in the supporting glass substrate, and Xi is a molar ratio of a metal oxide contained in the supporting glass substrate.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: June 1, 2021
    Assignee: AGC Inc.
    Inventors: Seiji Inaba, Yasunari Saito, Kiyoshi Tamai, Kazutaka Ono, Yuha Kobayashi
  • Publication number: 20210147279
    Abstract: A supporting glass substrate includes a compression stress layer on a surface thereof, and has an average thermal expansion coefficient at 50° C. to 200° C. that is 7 ppm/° C. to 15 ppm/° C., an internal tensile stress that is 5 MPa to 55 MPa, and a depth of the compression stress layer that is 10 ?m to 60 ?m.
    Type: Application
    Filed: November 9, 2020
    Publication date: May 20, 2021
    Applicant: AGC Inc.
    Inventors: Yusuke KOBAYASHI, Izuru KASHIMA, Kazutaka ONO, Seiji INABA, Hirofumi YAMAMOTO, Kiyoshi TAMAI
  • Publication number: 20210032155
    Abstract: A supporting glass substrate has a ratio of a Young's modulus (GPa) to a density (g/cm3) that is 37.0 (GPa·cm3/g) or more and the ratio has a value larger than a ratio calculation value, the ratio calculation value being a ratio of a Young's modulus (GPa) calculated from a composition to a density (g/cm3). The ratio calculation value is represented by the following expression: ?=2·?{(Vi·Gi)/Mi·Xi}, where, in the expression, Vi is a filling parameter of a metal oxide contained in the supporting glass substrate, Gi is a dissociation energy of a metal oxide contained in the supporting glass substrate. Mi is a molecular weight of a metal oxide contained in the supporting glass substrate, and Xi is a molar ratio of a metal oxide contained in the supporting glass substrate.
    Type: Application
    Filed: July 29, 2020
    Publication date: February 4, 2021
    Applicant: AGC Inc.
    Inventors: Seiji INABA, Yasunari SAITO, Kiyoshi TAMAI, Kazutaka ONO, Yuha KOBAYASHI
  • Publication number: 20210024402
    Abstract: To provide a glass plate having a high Young's modulus and a high devitrification viscosity. A glass includes, in mol % based on oxides: SiO2 of 30.0 to 50.0%; B2O3 of 10.0 to 30.0%; Al2O3of 10.0 to 30.0%; Y2O3 of 3.0 to 17.0%; and Gd2O3 of 3.5 to 17.0%, in which (Gd2O3+Y2O3) is from 16.0 to 22.0%, and (Gd2O3/Y2O3) is from 0.15 to 7.0.
    Type: Application
    Filed: August 28, 2020
    Publication date: January 28, 2021
    Applicant: AGC Inc.
    Inventors: Seiji INABA, Kazutaka ONO
  • Patent number: 10435327
    Abstract: The present invention relates to a glass article having high transmittance, while suppressing the discoloration and the solarization of the glass. The glass article is provided by controlling the contents of cerium oxide and iron oxide in the glass composition within the optimum range, further controlling the contents of manganese oxide and iron oxide in the glass composition within the optimum range, and controlling the basicity of the alkaline earth metal oxides in the glass composition depending on the iron amount contained in the glass.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: October 8, 2019
    Assignee: AGC Inc.
    Inventors: Seiji Inaba, Yusuke Arai, Hiroyuki Hijiya
  • Patent number: 10407334
    Abstract: The present invention provides a composite shaped body comprising silica nanoparticles and an organic polymer, wherein the silica nanoparticles and the organic polymer form a three-dimensional network; thereby provides: a composite shaped body which exhibits excellent formability and fabricability and which is also suited for use, for example, in producing a silica glass provided with an electrical conductivity; and a silica glass (especially, an electrically conductive silica glass) obtained by firing the composite shaped body.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: September 10, 2019
    Assignee: KYUSHU UNIVERSITY
    Inventors: Shigeru Fujino, Hiroshi Ikeda, Seiji Inaba, Toshihisa Kajiwara
  • Publication number: 20190219463
    Abstract: A stress measurement device for strengthened glass includes a polarization phase difference variable member configured to vary a polarization phase difference of a laser light by one wavelength of the laser light or more; an imaging element configured to image a plurality of times at a predetermined time interval a scattered light emitted according to the laser light with the varied polarization phase difference entering the strengthened glass, and obtain a plurality of images; and an arithmetic unit configured to measure a periodic change in luminance of the scattered light using the plurality of images, calculate a change in a phase of the change in luminance, and calculate a stress distribution in a depth direction from a surface of the strengthened glass based on the change in the phase.
    Type: Application
    Filed: March 25, 2019
    Publication date: July 18, 2019
    Applicants: ORIHARA INDUSTRIAL CO., LTD., AGC Inc.
    Inventors: Shuji ORIHARA, Yoshio ORIHARA, Satoshi OGAMI, Seiji INABA
  • Publication number: 20180050953
    Abstract: The present invention relates to a glass article having high transmittance, while suppressing the discoloration and the solarization of the glass. The glass article is provided by controlling the contents of cerium oxide and iron oxide in the glass composition within the optimum range, further controlling the contents of manganese oxide and iron oxide in the glass composition within the optimum range, and controlling the basicity of the alkaline earth metal oxides in the glass composition depending on the iron amount contained in the glass.
    Type: Application
    Filed: October 2, 2017
    Publication date: February 22, 2018
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Seiji INABA, Yusuke ARAI, Hiroyuki HIJIYA
  • Patent number: 9758424
    Abstract: The present invention relates to an anisotropic glass containing, in terms of mol % on the basis of oxides, P2O5 in a content of from 45 mol % to 57 mol %, two or more kinds of alkali metal oxides selected from the group consisting of Li2O, Na2O, K2O, Rb2O, and Cs2O in a total content of from 30 mol % to 54 mol %, and at least one polyvalent element oxide other than P2O5 in a total content of from 0.1 mol % to 20 mol %, and having a birefringence of 30×10?6 or more.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: September 12, 2017
    Assignee: ASAHI GLASS COMPANY, LIMITED
    Inventors: Seiji Inaba, Setsuro Ito