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:
May. 23, 2006
Filed:
Feb. 26, 2004
Junichi Ide, Tokyo, JP;
Takeshi Umega, Tokyo, JP;
Haruhiko Yamaguchi, Tokyo, JP;
Futoshi Kobayashi, Tokyo, JP;
Tsuyoshi Itoh, Tokyo, JP;
Yoshimi Yodogawa, Tokyo, JP;
Mamoru Usami, Tokyo, JP;
Junichi Ide, Tokyo, JP;
Takeshi Umega, Tokyo, JP;
Haruhiko Yamaguchi, Tokyo, JP;
Futoshi Kobayashi, Tokyo, JP;
Tsuyoshi Itoh, Tokyo, JP;
Yoshimi Yodogawa, Tokyo, JP;
Mamoru Usami, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
An optical recording medium-manufacturing apparatus which is capable of reducing wear of a cut-forming blade section used for forming a cut in a resin layer, without increasing the component costs of the apparatus. An ultrasonic horn includes a hollow-cylindrical cut-forming blade section for being pushed into a resin layer formed on one side of a disk-shaped substrate, thereby forming a circular cut in the resin layer. A control section controls motion of the ultrasonic horn caused by a moving mechanism. The control section causes the ultrasonic horn to be pushed in to the resin layer while causing ultrasonic vibration thereof to thereby form the cut, and while maintaining a state of ultrasonic vibration of the abutment section and a pushed-in state of the cut-forming blade section, causes the punching blade section to be pushed into the disk-shaped substrate, to form the central hole.