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. 30, 2013
Filed:
Sep. 13, 2012
Saori Kashiwada, Yokohama, JP;
Yuichi Oshawa, Yokohama, JP;
Junichi Ito, Yokohama, JP;
Chikayoshi Kamata, Kawasaki, JP;
Yoshiyuki Kamata, Tokyo, JP;
Saori Kashiwada, Yokohama, JP;
Yuichi Oshawa, Yokohama, JP;
Junichi Ito, Yokohama, JP;
Chikayoshi Kamata, Kawasaki, JP;
Yoshiyuki Kamata, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
In one embodiment, there is provided a master for producing a stamper. The master includes: a substrate made of a first material and comprising a first surface, wherein the first surface of the substrate is formed with a groove; a first layer made of a second material and formed in the groove, wherein the second material is different from the first material, and wherein a surface of the first layer is substantially flush with the first surface of substrate; and a projection portion formed on at least one of the first surface of the substrate and the surface of the first layer. The first material is silicon and the second material is selected from silicon oxide, aluminum oxide, titanium oxide, and glass.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile