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:
Jul. 23, 2013
Filed:
Apr. 30, 2010
Seiji Nishiwaki, Hyogo, JP;
Masa-aki Suzuki, Osaka, JP;
Shin-ichi Wakabayashi, Osaka, JP;
Jyunpei Matsuzaki, Osaka, JP;
Tatsuya Nakamura, Osaka, JP;
Seiji Nishiwaki, Hyogo, JP;
Masa-aki Suzuki, Osaka, JP;
Shin-ichi Wakabayashi, Osaka, JP;
Jyunpei Matsuzaki, Osaka, JP;
Tatsuya Nakamura, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A transparent sheet usable in the state where one of surfaces thereof is adjacent to a light emitting body, wherein the other surface of the sheet is divided into a plurality of tiny areas δ having such a size that a maximum circle among circles inscribed thereto has a diameter of 0.5 μm or greater and 3 μm or less with no gap; the tiny areas δ include a plurality of tiny areas δrandomly selected from the plurality of tiny areas δ, and the remaining plurality of tiny areas δ; the tiny areas δeach include an area δalong a border with the corresponding tiny area δ, and the remaining area δ; the tiny areas δeach include an area δalong a border with the corresponding tiny area δ, and the remaining area δ; the height of the tiny areas δis d/2; the height of the tiny areas δis between zero to d/2; the depth of the tiny areas δis d/2; the depth of the tiny areas δis between zero to d/2; and d is in the range of 0.2 μm or greater and 3.0 μm or less.