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:
Aug. 25, 1998
Filed:
Nov. 12, 1996
Toshiharu Ishikawa, Tokyo, JP;
Kenji Ueda, Tokyo, JP;
Satoru Hamada, Tokyo, JP;
Hiroyuki Nishimura, Tokyo, JP;
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Abstract
A hologram duplicating method and apparatus whereby a photosensitive material film is continuously and smoothly brought into close contact with the surface of a hologram original plate, and the film is effectively delaminated after a duplicating process. The apparatus includes a film supply part (31) for supplying a photosensitive material film (1), a film laminating part for successively laminating the supplied film (1) on a hologram original plate (35) with the film (1) being squeezed with a roller (46) from the upper side, a film delaminating part for successively delaminating the film (1) from the original plate (35) from one end thereof with the film (1) being pressed with the roller (46), and a film take-up part (43) for taking up the delaminated film. The film (1) can be laminated on the original plate (35) without trapping air bubbles, and the film (1) can be delaminated from the original plate (35) without causing peel unevenness such as undesired lines. Also disclosed is a hologram produced by the duplicating method.