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:
Jun. 02, 1998
Filed:
Aug. 11, 1997
Hirofumi Kamitakahara, Yokohama, JP;
Osamu Kanome, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A roller-shaped stamper has a scale portion with a light transmitting forming portion for forming the light transmitting portion on the resin, and a light shield forming portion for forming the light shielding portion of the resin, wherein the forming portions are alternately arranged with a constant pitch in a direction of rotation of said roller-shaped stamper; a plurality of scale portions are arranged in a direction normal to the direction of rotation of the roller-shaped stamper; and a groove disposed between the plural scale portions and extending in the direction of rotation of the roller-shaped stamper for exhausting air otherwise trapped between the resin and the roller-shaped stamper.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile