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US-2017334001-A1 · Nov 23, 2017 · US
Cutting method and manufacturing method of sheet member, sheet member, optical element, and image display device
US8980403B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8980403-B2 |
| Application number | US-201213355850-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 23, 2012 |
| Priority date | Jan 27, 2006 |
| Publication date | Mar 17, 2015 |
| Grant date | Mar 17, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
An end face of a sheet member is cut while rotating a cutting member having a rotation axis extending along a vertical direction of the end face of the sheet member and a cutting blade projecting to a side of the end face of the sheet member around the rotation axis. The cutting member is moved relatively to the sheet member along a longitudinal direction of the end face to be cut. The part separated from a virtual line parallel to the sheet face and passing the rotation center in a cutting region formed by the rotating cutting blade is made to contact the end face of the sheet member.
First claim
Opening claim text (preview).
What is claimed is: 1. A sheet member comprising: a plurality of optical films laminated together; an end face; and a cutting trace formed on said end face, said cutting trace extending at an angle of 75° or less to a longitudinal direction of said end face, wherein said end face is located on a thickness side of said sheet member, said end face is cut while rotating a cutting member having a rotation axis extending along a vertical direction of said end face and a cutting blade projecting to a side of said end face around the rotation axis, the cutting member is moved relatively to said sheet member along a longitudinal direction of said end face to be cut, and a part separated from a virtual line parallel to said end face and passing the rotation center in a cutting region formed by the rotating cutting blade is made to contact the end face of the sheet member. 2. The sheet member of claim 1 , wherein a maximum height of the cut end face is 6 μm or less. 3. An optical element comprising: the sheet member of claim 1 , wherein the sheet member is arranged on one side or both sides of said optical element. 4. The sheet member of claim 1 , wherein the cutting trace is formed in a single fixed direction on the end face of the sheet member.
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- What does patent US8980403B2 cover?
- An end face of a sheet member is cut while rotating a cutting member having a rotation axis extending along a vertical direction of the end face of the sheet member and a cutting blade projecting to a side of the end face of the sheet member around the rotation axis. The cutting member is moved relatively to the sheet member along a longitudinal direction of the end face to be cut. The part sep…
- Who is the assignee on this patent?
- Yamamoto Satoru, Mizushima Hiroaki, Nitto Denko Corp
- What technology area does this patent fall under?
- Primary CPC classification B23C3/12. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 17 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).