Ceramic-based timepiece or jewellery component with a structured decoration
US-2020293001-A1 · Sep 17, 2020 · US
Timepiece dial, timepiece, and method for manufacturing timepiece dial
US12360495B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12360495-B2 |
| Application number | US-202217720346-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 14, 2022 |
| Priority date | Apr 15, 2021 |
| Publication date | Jul 15, 2025 |
| Grant date | Jul 15, 2025 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A timepiece dial including a base having a first region having a coating film provided at the surface of the base, a second region where laser light is radiated to the first region to remove the coating film, and a third region, in part of the first region, where the coating film is penetrated and the base is dug down, and the surface roughness of the third region is smaller than the surface roughness of the second region.
First claim
Opening claim text (preview).
What is claimed is: 1. A timepiece dial comprising a base having a first region having a coating film provided at a surface of the base, a second region where laser light is radiated to the first region to remove the coating film, and a third region, in part of the first region, where the coating film is absent and the base has a recess including a cross-sectional shape having a pair of downwardly extending sidewalls that terminate at a bottom of the recess, and the bottom of the recess includes a pair of upwardly extending surfaces that meet to define an upwardly extending apex at a center of the bottom of the recess, wherein surface roughness of the third region is smaller than surface roughness of the second region. 2. The timepiece dial according to claim 1 , wherein optical reflectance of a surface of the third region is greater than optical reflectance of a surface of the second region. 3. The timepiece dial according to claim 1 , wherein the third region is surrounded by the first region. 4. The timepiece dial according to claim 1 , wherein the first region is provided between the second region and the third region. 5. The timepiece dial according to claim 1 , wherein at least one of the second region and the third region includes a plated layer. 6. The timepiece dial according to claim 1 , wherein the coating film in the first region is a nonconductor. 7. A timepiece comprising the timepiece dial according to claim 1 .
Assignees
Inventors
Classifications
for working with non-mechanical means, e.g. chemical, electrochemical, metallising, vapourising; with electron beams, laser beams · CPC title
Producing and filling perforations, e.g. tarsia plates · CPC title
Removing selectively parts of at least the upper layer of a multi-layer article · CPC title
for dials (construction thereof G04B19/10, G04B19/12) · CPC title
by laser radiation · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US12360495B2 cover?
- A timepiece dial including a base having a first region having a coating film provided at the surface of the base, a second region where laser light is radiated to the first region to remove the coating film, and a third region, in part of the first region, where the coating film is penetrated and the base is dug down, and the surface roughness of the third region is smaller than the surface ro…
- Who is the assignee on this patent?
- Seiko Epson Corp
- What technology area does this patent fall under?
- Primary CPC classification G04B19/06. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jul 15 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).