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. 21, 2015
Filed:
Jul. 09, 2010
Ryoji Furutani, Ichihara, JP;
Takahiro Tokuyasu, Ichihara, JP;
Shinya Katou, Ichihara, JP;
Rie Katou, Ichihara, JP;
Tomohito Yuasa, Ichihara, JP;
Kouji Komorida, Ichihara, JP;
Tatsuya Sakuta, Ichihara, JP;
Ryoji Furutani, Ichihara, JP;
Takahiro Tokuyasu, Ichihara, JP;
Shinya Katou, Ichihara, JP;
Rie Katou, Ichihara, JP;
Tomohito Yuasa, Ichihara, JP;
Kouji Komorida, Ichihara, JP;
Tatsuya Sakuta, Ichihara, JP;
Hitachi Chemical Company, Ltd., Tokyo, JP;
Abstract
A method for manufacturing an adhesive sheet according to the present invention is a method for manufacturing an adhesive sheet including a long peeling base materialand an adhesive layerprovided on the peeling base materialin the form of an island, the method including a peeling step of, after laminating a long adhesive layeron the peeling base material, peeling off an unnecessary portionof the adhesive layerso that a predetermined portion of the adhesive layer is left on the peeling base materialin the form of an island, wherein, in the peeling step, the width W of a narrow portion, which is the narrowest in width in a short direction of the unnecessary portionof the adhesive layer, is adjusted so that the breaking strength in the narrow portionis 200 g or more.