公开(公告)号：US20180327304A1

公开(公告)日：2018-11-15

申请号：US16033787

申请日：2018-07-12

Applicant: AGC Inc.

Inventor： Suguru MURAYAMA ,  Seiki Ohara ,  Qing Li ,  Shusaku Akiba

IPC: C03C3/097 ,  C03C21/00 ,  C03C3/093 ,  C03C3/091 ,  C03C4/18 ,  C03C3/085 ,  C03C3/083 ,  C03C3/087

Abstract: A glass for chemical strengthening contains, in mole percentage on an oxide basis, 58 to 80% of SiO2, 13 to 18% of Al2O3, 0 to 5% of B2O3, 0.5 to 4% of P2O5, 4 to 10% of Li2O, 5 to 14% of Na2O, 0 to 2% of K2O, 0 to 11% of MgO, 0 to 5% of CaO, 0 to 20% of SrO, 0 to 15% of BaO, 0 to 10% of ZnO, 0 to 1% of TiO2, and 0 to 2% of ZrO2. A value of X is 30000 or more. The value of X is calculated based on the formula, X=SiO2×329+Al2O3×786+B2O3×627+P2O5×(−941)+Li2O×927+Na2O×47.5+K2O×(−371)+MgO×1230+CaO×1154+SrO×733+ZrO2×51.8, by using the contents in mole percentage on an oxide basis of components.

公开(公告)号：US12006252B2

公开(公告)日：2024-06-11

申请号：US17469139

申请日：2021-09-08

Applicant: AGC Inc.

Inventor： Seiki Ohara ,  Shunji Wachi ,  Hironobu Sato

IPC: C03C21/00 ,  C03C17/28 ,  C03C17/30 ,  C03C17/32 ,  G01L1/24

CPC classification number: C03C21/002 ,  C03C17/28 ,  C03C17/30 ,  C03C17/32 ,  G01L1/24 ,  C03C2217/732 ,  C03C2218/151

Abstract: The present invention relates to a chemically strengthened glass with a film, including: a chemically strengthened glass having a pair of main surfaces opposing each other; and a film formed on at least one of the main surfaces of the chemically strengthened glass, in which the chemically strengthened glass has two or less interference fringes observed under stress measurement utilizing surface propagation light having a wavelength of 365 nm, and the film has a refractive index lower than a refractive index of the chemically strengthened glass.

公开(公告)号：US10370287B2

公开(公告)日：2019-08-06

申请号：US15920009

申请日：2018-03-13

Applicant: AGC Inc.

Inventor： Suguru Murayama ,  Seiki Ohara ,  Qing Li ,  Shusaku Akiba

IPC: C03C3/085 ,  C03C3/097 ,  C03C21/00 ,  C03C3/087 ,  C03C3/083 ,  C03C3/091 ,  C03C3/093 ,  C03C4/18

Abstract: A glass for chemical strengthening contains, in mole percentage on an oxide basis, 58 to 72% of SiO2, 7 to 18% of Al2O3, 1% or more of B2O3, 0 to 4% of P2O5, 5 to 16% of Li2O, 0 to 7% of Na2O, 0 to 2% of K2O, 0 to 6% of MgO, 0 to 20% of CaO, 0 to 20% of SrO, 0 to 15% of BaO, 0 to 10% of ZnO, 0 to 1% of TiO2, and 0 to 2% of ZrO2. A value of X is 30000 or more. The value of X is calculated based on the formula, X=SiO2×329+Al2O3×786+B2O3×627+P2O5×(−941)+Li2O×927+Na2O×47.5+K2O×(−371)+MgO×1230+CaO×1154+SrO×733+ZrO2×51.8, by using the contents in mole percentage on an oxide basis of components.

公开(公告)号：US11314018B2

公开(公告)日：2022-04-26

申请号：US17026497

申请日：2020-09-21

Applicant: AGC Inc.

Inventor： Seiki Ohara ,  Shotaro Takenobu ,  Naoya Wada

IPC: G02B6/26 ,  G02B6/122 ,  G02B6/30

Abstract: The present invention relates to a polymer optical waveguide including: a core; an under-cladding; and an over-cladding, in which the polymer optical waveguide includes a coupling section and an optical waveguide section that are provided along a light propagation direction, the polymer optical waveguide includes portions having different core widths along the light propagation direction, and when a core width at a portion a having a narrowest core width is denoted Wa (μm) and a core height at the portion a is denoted Ha (μm), Ha is 1.3 μm or more and 4.5 μm or less, and Ha/Wa is 1.15 or less.

公开(公告)号：US10472272B2

公开(公告)日：2019-11-12

申请号：US16033787

申请日：2018-07-12

Applicant: AGC Inc.

Inventor： Suguru Murayama ,  Seiki Ohara ,  Qing Li ,  Shusaku Akiba

IPC: C03C3/085 ,  C03C3/091 ,  C03C3/097 ,  C03C21/00 ,  C03C3/083 ,  C03C3/087 ,  C03C3/093 ,  C03C4/18

Abstract: A glass for chemical strengthening contains, in mole percentage on an oxide basis, 58 to 80% of SiO2, 13 to 18% of Al2O3, 0 to 5% of B2O3, 0.5 to 4% of P2O5, 4 to 10% of Li2O, 5 to 14% of Na2O, 0 to 2% of K2O, 0 to 11% of MgO, 0 to 5% of CaO, 0 to 20% of SrO, 0 to 15% of BaO, 0 to 10% of ZnO, 0 to 1% of TiO2, and 0 to 2% of ZrO2. A value of X is 30000 or more. The value of X is calculated based on the formula, X=SiO2×329+Al2O3×786+B2O3×627+P2O5×(−941)+Li2O×927+Na2O×47.5+K2O×(−371)+MgO×1230+CaO×1154+SrO×733+ZrO2×51.8, by using the contents in mole percentage on an oxide basis of components.

公开(公告)号：US10409000B2

公开(公告)日：2019-09-10

申请号：US15884962

申请日：2018-01-31

Applicant: AGC Inc.

Inventor： Seiki Ohara ,  Shotaro Takenobu

IPC: G02B6/122 ,  G02B6/30 ,  G02B6/12 ,  G02B6/26 ,  G02B1/04 ,  G02B6/02

Abstract: A resin optical waveguide containing a core, an under cladding and an over cladding having refractive indices lower than that of the core, in which the resin optical waveguide has, at one end side of, a core-exposed section at which the over cladding is not present and the core and the under cladding nearby the core are exposed and, of the under cladding, a portion corresponding to the core-exposed section has a first layer and a second layer that satisfy a certain condition.