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:
Apr. 05, 2005
Filed:
Mar. 10, 2000
Takaaki Higashida, Kadoma, JP;
Shinji Kadoriku, Takarazuka, JP;
Hiroshi Yutani, Katano, JP;
Yoshio Maruyama, Kyoto, JP;
Tokiharu Nakagawa, Hirakata, JP;
Kazuo Inoue, Suita, JP;
Yoshihiro Kawasaki, Hirakata, JP;
Takaaki Higashida, Kadoma, JP;
Shinji Kadoriku, Takarazuka, JP;
Hiroshi Yutani, Katano, JP;
Yoshio Maruyama, Kyoto, JP;
Tokiharu Nakagawa, Hirakata, JP;
Kazuo Inoue, Suita, JP;
Yoshihiro Kawasaki, Hirakata, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An optical disk molding apparatus and method are provided which prevent data formed on a molded object from being damaged and prevent quality deterioration of the molded object. There are provided a mold moving device, a first gas supply device, and a controller, whereby a first release space part is formed by opening molds from a mold clamp state by a movement distance not damaging a data transferred face of the optical disk, and a gas is supplied to the first release space part at a point in time when the first release space part is formed, thereby totally separating the optical disk and a stamper from each other. No damage is caused to a data transferred face at the point in time when the first release space part is formed. Since separation between the optical disk and the stamper is performed via pressure of the gas after the first release space part is formed, data is prevented from being damaged over the data transferred face of the optical disk in its entirety.