Abstract 1. A METHOD OF PRODUCING A CRYSTALLIZED GLASS BODY HAVING A SURFACE PATTERN, COMPRISING THE STEPS OF: (A) FORMING A GLASS BODY WITH A PROJECTING PORTION FROM A SURFACE OF THE GLASS BODY, SAID GLAS BODY HAVING A COMPOSITION CAPABLE OF BEING CRYSTALLIZED BY HEAT TREATMENT TO PRECIPITATE NEEDLE-LIKE B-WOLLASTONITE CRYSTALS EXTENDING INWARDLY FROM THE SURFACE OF THE BODY IN A DIRECTION NORMAL TO THE SURFACE, AND (B) SUBJECTING THE GLASS BODY TO HEAT TREATMENT SUFFICIENT TO PRECIPITATE NEEDLE-LIKE B-WOLLASTONITE CRYSTALS, SAID PRECIPITATE NEEDLE-LIKE CRYSTALS IN THE PROJECTION AND THE NEEDLE-LIKE CRYSTALS IN THE OTHER REGION OF THE SURFACE OF THE BODY BEING DIFFERENT IN PRECIPITATED DIRECTION; AND (C) POLISHING THE PROJECTING PORTION TO THE SURFACE OF THE BODY WHEREBY A SURFACE PATTERN RESULTS IN THE GLASS BODY.
Inventors
👤 T Okada
👤 H Asada
👤 S Nakamura
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-26 08:52
CPC Classifications
C; C03; C03C; C03C23/00; C03C10/00; C03C10/0036
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A METHOD OF PRODUCING A CRYSTALLIZED GLASS BODY HAVING A SURFACE PATTERN, COMPRISING THE STEPS OF: (A) FORMING A GLASS BODY WITH A PROJECTING PORTION FROM A SURFACE OF THE GLASS BODY, SAID GLAS BODY HAVING A COMPOSITION CAPABLE OF BEING CRYSTALLIZED BY HEAT TREATMENT TO PRECIPITATE NEEDLE-LIKE B-WOLLASTONITE CRYSTALS EXTENDING INWARDLY FROM THE SURFACE OF THE BODY IN A DIRECTION NORMAL TO THE SURFACE, AND (B) SUBJECTING THE GLASS BODY TO HEAT TREATMENT SUFFICIENT TO PRECIPITATE NEEDLE-LIKE B-WOLLASTONITE CRYSTALS, SAID PRECIPITATE NEEDLE-LIKE CRYSTALS IN THE PROJECTION AND THE NEEDLE-LIKE CRYSTALS IN THE OTHER REGION OF THE SURFACE OF THE BODY BEING DIFFERENT IN PRECIPITATED DIRECTION; AND (C) POLISHING THE PROJECTING PORTION TO THE SURFACE OF THE BODY WHEREBY A SURFACE PATTERN RESULTS IN THE GLASS BODY.
Claim 2
Independent Claim
127 words
A METHOD OF PRODUCING A CRYSTALLIZED GLASS BODY HAVING A SURFACE PATTERN, COMPRISING THE STEPS OF: (A) FORMING A GLASS BODY WITH A PROJECTING PORTION FROM A SURFACE OF THE GLASS BODY, SAID GLAS BODY HAVING A COMPOSITION CAPABLE OF BEING CRYSTALLIZED BY HEAT TREATMENT TO PRECIPITATE NEEDLE-LIKE B-WOLLASTONITE CRYSTALS EXTENDING INWARDLY FROM THE SURFACE OF THE BODY IN A DIRECTION NORMAL TO THE SURFACE, AND (B) SUBJECTING THE GLASS BODY TO HEAT TREATMENT SUFFICIENT TO PRECIPITATE NEEDLE-LIKE B-WOLLASTONITE CRYSTALS, SAID PRECIPITATE NEEDLE-LIKE CRYSTALS IN THE PROJECTION AND THE NEEDLE-LIKE CRYSTALS IN THE OTHER REGION OF THE SURFACE OF THE BODY BEING DIFFERENT IN PRECIPITATED DIRECTION; AND (C) POLISHING THE PROJECTING PORTION TO THE SURFACE OF THE BODY WHEREBY A SURFACE PATTERN RESULTS IN THE GLASS BODY.