Laminated flexible resilient abrasive article
US-9221152-B2 · Dec 29, 2015 · US
Polishing sheet and polishing tool
US9440331B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9440331-B2 |
| Application number | US-201414568477-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 12, 2014 |
| Priority date | Dec 16, 2013 |
| Publication date | Sep 13, 2016 |
| Grant date | Sep 13, 2016 |
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Abstract
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A polishing sheet comprising a plurality of convex portions which protrudes from a sheet surface and includes an upper surface which is in parallel to the sheet surface is disclosed. A plurality of abrasive grains made by a granular porous body in which a number of primary particles are partially bonded to each other and include a void in between is arranged at least on the upper surface of the convex portion.
First claim
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What is claimed is: 1. A polishing sheet comprising: a sheet surface including a plurality of convex portions protruding therefrom and including an upper surface which is in parallel to the sheet surface; and a plurality of abrasive grains, each abrasive grain having a granular porous body in which plural primary particles are partially bonded to each other and include a void therebetween, wherein the abrasive grains, each constituted by the primary particles partially bonded…
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- B24D11/00Primary
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US9440331B2 cover?
- A polishing sheet comprising a plurality of convex portions which protrudes from a sheet surface and includes an upper surface which is in parallel to the sheet surface is disclosed. A plurality of abrasive grains made by a granular porous body in which a number of primary particles are partially bonded to each other and include a void in between is arranged at least on the upper surface of the…
- Who is the assignee on this patent?
- Sawada Kiyotaka, Zhang Jun, Ricoh Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B24D11/00. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Sep 13 2016 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).