公开(公告)号：US20170330156A1

公开(公告)日：2017-11-16

申请号：US15531364

申请日：2015-11-26

Applicant: TECHNO QUARTZ INC.

Inventor： Masahide KATO ,  Yasuhiro UMETSU

IPC: G06Q10/00 ,  B41M5/24 ,  G05B19/12 ,  G05B19/402 ,  G06K19/06 ,  G06K7/14

CPC classification number: G06Q10/20 ,  B23K26/0006 ,  B23K26/0622 ,  B23K26/53 ,  B23K2101/40 ,  B23K2103/54 ,  B41M5/24 ,  G05B19/124 ,  G05B19/402 ,  G05B2219/23363 ,  G05B2219/40538 ,  G05B2219/40623 ,  G06K7/1417 ,  G06K19/06037 ,  G06K19/06046 ,  Y02P90/14

Abstract: The invention provides a transparent product to which management information is provided such that said management information can be reliably transmitted, which is devised such that even though the product is used under a harsh environment, the indicated management information will be not peeled off, and a production method for the transparent product. The invention provides a transparent product provided with management information and indicating the management information for managing the product, characterized in that said management information is provided at a site where the product has a thickness, and inside thereof in the thickness direction, in which said management information can be visually recognized through at least one of the surfaces of said product in the thickness direction.

公开(公告)号：US20230312406A1

公开(公告)日：2023-10-05

申请号：US18185527

申请日：2023-03-17

Applicant: Techno Quartz Inc.

Inventor： Masahide KATO ,  Yasuhiro UMETSU ,  Yo MATSUURA

IPC: C03C17/10 ,  C03C19/00 ,  C03C23/00 ,  C03C17/22

CPC classification number: C03C17/10 ,  C03C19/00 ,  C03C23/007 ,  C03C17/22 ,  C03C2217/25 ,  C03C2218/112 ,  C03C2218/31 ,  C03C2201/02

Abstract: A method for manufacturing a quartz glass substrate with a coating formed includes: surface roughening for a base surface of the quartz glass substrate, on which the sprayed coating is formed; and a heating treatment of heating the substrate after the surface roughening. The base surface is 0.9 μm or more and 5.0 μm or less in arithmetic mean roughness (Ra) in the surface roughening. The heating treatment is performed at a temperature that is equal to or higher than a strain point (temperature at which the viscosity reaches 1013.5 Pa·sec) of the quartz glass.