公开(公告)号：US20250122116A1

公开(公告)日：2025-04-17

申请号：US18834614

申请日：2023-01-31

Applicant: OHARA INC.

Inventor： NOZOMU ODA ,  SAYA KIKKAWA ,  KOHEI OGASAWARA

IPC: C03C10/00

Abstract: A crystallized inorganic composition article, comprising: an inorganic composition article having a transmittance of 50% or more at 550 nm when heated to [At+50]° C., where At (° C.) is a yield point, wherein in a raw glass, by mass % in terms of oxide, a content of a SiO2 component is 65.0% to 85.0%, a content of an Al2O3 component is 3.0% to 15.0%, a content of a P2O5 component is more than 0% to 5.0%, a content of a Li2O component is more than 5.0% to 15.0%, a content of a ZrO2 component is 0% to 10.0%, a content of a MgO component is 0% to 5.0%, [the content of the Al2O3 component/(a content of a K2O component+the content of the MgO component)] is more than 0 to 20.0, and [the content of the Li2O component/the content of the MgO component] is 8.0 or more.

公开(公告)号：US20240375994A1

公开(公告)日：2024-11-14

申请号：US18691497

申请日：2022-07-12

Applicant: OHARA INC.

Inventor： NOZOMU ODA

IPC: C03C10/00

Abstract: Provided is a very strong and transparent crystallized glass. This crystallized glass is characterized by containing, by oxide-equivalent mass %, 40.0-55.0% of a SiO2 component, 10.0-30.0% of an Al2O3 component, 10.0-30.0% of a MgO component, 5.0-15.0% of a TiO2 component, and more than 0% and up to 8.0% of a Na2O component, where the Vickers hardness (Hv) is 700 or higher and the spectral transmittance at 400 nm is 50% or higher with regard to a 1 mm-thick sample.

公开(公告)号：US20230322612A1

公开(公告)日：2023-10-12

申请号：US18026824

申请日：2021-07-16

Applicant: OHARA INC.

Inventor： NOZOMU ODA

IPC: C03C10/00 ,  C03C4/02 ,  C03C21/00

CPC classification number: C03C10/0018 ,  C03C10/0054 ,  C03C2204/00 ,  C03C21/002 ,  C03C4/02

Abstract: Provided are black crystallized glass that is safe and easy to produce, and reinforced crystallized glass of the black crystallized glass. Crystallized glass and reinforced crystallized glass containing, by wt % in terms of oxide, 40.0% to 70.0% of a SiO2 component, 11.0% to 25.0% of an Al2O3 component, 5.0% to 19.0% of a Na2O component, 0% to 9.0% of a K2O component, 1.0% to 18.0% of one or more components selected from a MgO component and a ZnO component, 0% to 3.0% of a CaO component, 1.0% to 3.5% of a TiO2 component, and 1.0% to 6.5% of a Fe2O3 component, and not containing a CoO component and a Co3O4 component.

公开(公告)号：US20220259094A1

公开(公告)日：2022-08-18

申请号：US17735055

申请日：2022-05-02

Applicant: OHARA INC.

Inventor： KOHEI OGASAWARA ,  TOSHITAKA YAGI ,  NOZOMU ODA

IPC: C03C10/00

Abstract: To provide an inorganic composition article containing at least one kind selected from α-cristobalite and α-cristobalite solid solution as a main crystal phase, in which by mass % in terms of oxide, a content of a SiO2 component is 50.0% to 75.0%, a content of a Li2O component is 3.0% to 10.0%, a content of an Al2O3 component is 5.0% or more and less than 15.0%, and a total content of the Al2O3 component and a ZrO2 component is 10.0% or more, and a surface compressive stress value is 600 MPa or more.

公开(公告)号：US20230312400A1

公开(公告)日：2023-10-05

申请号：US18020069

申请日：2021-07-08

Applicant: OHARA INC.

Inventor： NOZOMU ODA ,  TOSHITAKA YAGI

IPC: C03C10/00 ,  C03C3/085 ,  C03C3/087 ,  C03C3/097 ,  C03C3/091 ,  C03C3/093

CPC classification number: C03C10/00 ,  C03C3/085 ,  C03C3/087 ,  C03C3/091 ,  C03C3/093 ,  C03C3/097 ,  C03C2204/00

Abstract: Glass and crystallized glass of the glass, the glass containing, by mass% in terms of an oxide, 40.0 to 55.0% of a SiO2 component, 10.0 to 30.0% of an Al2O3 component, 10.0 to 30.0% of an MgO component, 5.0 to 15.0% of a TiO2 component, and more than 0 to 8.0% of an Na2O component.

公开(公告)号：US20220144691A1

公开(公告)日：2022-05-12

申请号：US17436612

申请日：2020-03-05

Applicant: OHARA INC.

Inventor： KOHEI OGASAWARA ,  TOSHITAKA YAGI ,  NOZOMU ODA

IPC: C03C10/00

Abstract: To provide an inorganic composition article containing at least one kind selected from α-cristobalite and α-cristobalite solid solution as a main crystal phase, in which by mass % in terms of oxide, a content of a SiO2 component is 50.0% to 75.0%, a content of a Li2O component is 3.0% to 10.0%, a content of an Al2O3 component is 5.0% or more and less than 15.0%, and a total content of the Al2O3 component and a ZrO2 component is 10.0% or more, and a surface compressive stress value is 600 MPa or more.