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. 18, 2013
Filed:
Dec. 02, 2011
Maiko Tanaka, Ichihara, JP;
Michio Uruno, Ichihara, JP;
Takayuki Matsuzaki, Ichihara, JP;
Ryoji Furutani, Ichihara, JP;
Michio Mashino, Ichihara, JP;
Teiichi Inada, Tsukuba, JP;
Maiko Tanaka, Ichihara, JP;
Michio Uruno, Ichihara, JP;
Takayuki Matsuzaki, Ichihara, JP;
Ryoji Furutani, Ichihara, JP;
Michio Mashino, Ichihara, JP;
Teiichi Inada, Tsukuba, JP;
Hitachi Chemical Company, Ltd., Tokyo, JP;
Abstract
An adhesive sheet comprising a release substrate, a substrate film, and a first tacky-adhesive layerplaced between the release substrateand the substrate film, wherein an annular incision D is formed on the release substratefrom the surface of the first tacky-adhesive layerside, the first tacky-adhesive layeris laminated so as to cover the whole inner surface of the incision D in the release substrate, and the incision D has a depth d of less than the thickness of the release substrateand 25 μm or less.