Systems and methods for correcting read/write overlay errors in the manufacture of magnetic transducers for storage drives
US-2016346898-A1 · Dec 1, 2016 · US
Apparatus and method for monitoring glass plate polishing state
US9028294B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9028294-B2 |
| Application number | US-201113045273-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 10, 2011 |
| Priority date | Mar 11, 2010 |
| Publication date | May 12, 2015 |
| Grant date | May 12, 2015 |
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.
Disclosed are an apparatus and a method for monitoring a glass plate polishing state. The apparatus may include a location measuring unit for measuring a location on a glass plate being polished by a polishing machine, a current measuring unit for measuring an electric current flowing into the polishing machine, a memory unit for storing a reference value of the electric current flowing into the polishing machine for each polishing location of the glass plate, and a control unit for determining whether a polishing state is faulty, by comparing a value of the electric current measured by the current measuring unit for each polishing location measured by the location measuring unit with a corresponding reference value of the electric current stored in the memory unit for each polishing location.
First claim
Opening claim text (preview).
What is claimed is: 1. An apparatus for monitoring a glass plate polishing state, which monitors a polishing state during polishing of a glass plate using a polishing machine, the apparatus comprising: a location measuring unit for measuring multiple locations on the glass plate being polished by the polishing machine; a current measuring unit for measuring an electric current flowing into the polishing machine; a memory unit for storing reference values of the electric curren…
Assignees
Inventors
Classifications
Operations & Transport · mapped topic
- B24B49/10Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9028294B2 cover?
- Disclosed are an apparatus and a method for monitoring a glass plate polishing state. The apparatus may include a location measuring unit for measuring a location on a glass plate being polished by a polishing machine, a current measuring unit for measuring an electric current flowing into the polishing machine, a memory unit for storing a reference value of the electric current flowing into th…
- Who is the assignee on this patent?
- Moon Won-Jae, Oh Hyung-Young, Lee Dae-Yeon, and 5 more
- What technology area does this patent fall under?
- Primary CPC classification B24B49/10. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 12 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).