公开(公告)号：US11621480B2

公开(公告)日：2023-04-04

申请号：US17343920

申请日：2021-06-10

Applicant: AGC INC.

Inventor： Naoya Wada ,  Masao Ozeki

IPC: H01Q1/40 ,  H01Q1/38 ,  H01Q1/00 ,  H01Q3/44

Abstract: The present invention relates to a protective member having a plate shape, including: a first base material that is a chemically strengthened glass, and a second base material provided in a hole recessed or penetrating in a thickness direction of the first base material and formed of a material different from a material forming the first base material, in which with respect to values of relative permittivity and dielectric loss tangent at a frequency of 10 GHz of the first base material and the second base material, the value of at least either one of the relative permittivity and the dielectric loss tangent of the second base material is smaller than the value of the relative permittivity or the dielectric loss tangent of the first base material.

公开(公告)号：US11886006B2

公开(公告)日：2024-01-30

申请号：US17453906

申请日：2021-11-08

Applicant: AGC Inc.

Inventor： Naoya Wada ,  Shotaro Takenobu ,  Kenta Kobayashi ,  Seiki Ohara

IPC: G02B6/122 ,  G02B6/02

CPC classification number: G02B6/1221 ,  G02B6/02038

Abstract: The present invention provides a polymer optical waveguide having a core, an under cladding and an over cladding, in which: the polymer optical waveguide has a first section on one end side in the light propagation direction where no portion of the over cladding exists and the core and the under cladding are exposed, and a second section on the other end side in the light propagation direction where the core is covered with the under cladding and the over cladding; and a relative refractive index difference among the core, the under cladding and the over cladding, a core width and core height in an end surface at the one end side of the first section, and a core width and core height in an end surface at the other end side of the second section satisfy predetermined relationships.

公开(公告)号：US11644706B2

公开(公告)日：2023-05-09

申请号：US16718633

申请日：2019-12-18

Applicant: AGC INC.

Inventor： Hitoshi Mishiro ,  Takehiko Nose ,  Minoru Tamada ,  Yohei Kawai ,  Naoya Wada

IPC: G02F1/1335 ,  G02F1/1333 ,  C03C15/00 ,  C03C17/30

CPC classification number: G02F1/133502 ,  C03C15/00 ,  C03C17/30 ,  G02F1/133308 ,  G02F1/133331

Abstract: The present invention relates to a glass plate which is provided with a first main surface, and a second main surface which faces the first main surface. An antiglare portion and a non-antiglare portion are provided to the first main surface. The average lengths (RSm) of elements of roughness curves of the antiglare portion and the non-antiglare portion are respectively 1 μm or higher. The difference between the RSm of the antiglare portion and the RSm of the non-antiglare portion is 100 μm or lower.

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：US10788172B2

公开(公告)日：2020-09-29

申请号：US15801540

申请日：2017-11-02

Applicant: AGC Inc.

Inventor： Yusuke Arai ,  Naoya Wada ,  Hiroyuki Hijiya ,  Tetsuya Nakashima

IPC: C03C3/087 ,  F21S2/00 ,  C03C3/095 ,  F21V8/00 ,  C03C3/085

Abstract: A glass plate, with a thickness θ of 1.0 mm or more, having first and second main surfaces and end surfaces, includes 1 to 80 weight ppm of iron in terms of Fe2O3 with 0.1 to 10.0 weight ppm of Fe2+; and 0.1 to 10.0 weight ppm of Ni, Mn, Cr, Co and V in total. In a sample with a size of 50 mm×50 mm×θ obtained from the glass plate, and an arithmetic average roughness of the main surfaces and first and second cut surfaces being 0.1 μm or less, a first average absorbance coefficient for a wavelength of 400 to 700 nm measured on the first main surface in a normal direction is 0.009 or less, and a ratio of a second average absorbance coefficient measured on the first cut surface, to the first absorbance coefficient is 1.3 or less.