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. 19, 2011
Filed:
Nov. 28, 2006
Applicant:
Tsutomu Matsuhira, Chiba, JP;
Inventor:
Tsutomu Matsuhira, Chiba, JP;
Assignee:
Seiko Instruments Inc., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 41/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Air bubbles or foreign objects in a transparent adhesive layer that bonds a transparent plate and a plate-like member together in full-surface contact are detected without fail. For the detection, an optical fiber or the like is used to irradiate the adhesive layer with light from a side, the cast light is guided through the adhesive layer, and a state of the adhesive layer is checked with the guided light. A check that discriminates defects in the adhesive layer from defects in the bonded transparent plate is thus made possible.