The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 25, 2012
Filed:
Feb. 25, 2010
Noriyuki Saito, Miyagi, JP;
Hiroshi Uchiyama, Miyagi, JP;
Takao Kudo, Miyagi, JP;
Yusuke Suzuki, Miyagi, JP;
Noriyuki Saito, Miyagi, JP;
Hiroshi Uchiyama, Miyagi, JP;
Takao Kudo, Miyagi, JP;
Yusuke Suzuki, Miyagi, JP;
Sony Corporation, Tokyo, JP;
Abstract
An optical disc manufacturing method includes: an injection step of injecting a liquid material into a circular plate-shaped injection space having a center hole portion at a center from an injection hole connected to an inner edge portion in the injection space; a discharge step of discharging air and the liquid material from a discharge hole formed on a straight line passing through the injection hole and a center of the center hole portion in a plane direction of the circular plate and at a position opposite to the injection hole; a curing step of curing the liquid material injected into the injection space; and a takeout step of taking out the cured liquid material from the injection space.