Method of Manufacturing Glass Substrate for Information Recording Medium, and Suction Instrument
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Apr 25, 2013
app pub date -
Jun 21, 2011
filing date -
Jun 30, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An object of the invention is to provide a method of manufacturing a glass substrate for an information recording medium, which suppresses an increase in the number of foreign matter adhering to the surface of the glass substrate or damages on the surface of the glass substrate in suckingly holding the glass substrate by a suctorial holding portion, and to provide a suction instrument which makes it easy to dismount a glass substrate from a polishing pad of a polishing device. A suction instrument 1 of the invention has a suction pad 32. The suction pad 32 is provided with a center hole 32a, and a groove 32b extending from the center hole 32a to an end of an outer periphery of the contacting pad 32.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully