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. 17, 2018
Filed:
Sep. 30, 2015
Sharp Kabushiki Kaisha, Sakai, Osaka, JP;
Nobuaki Yamada, Sakai, JP;
Kenichiro Nakamatsu, Sakai, JP;
SHARP KABUSHIKI KAISHA, Osaka, JP;
Abstract
The present invention provides a transparent film with an excellent anti-fog property. The transparent film of the present invention includes: a base film provided on a surface with projections formed at a pitch equal to or shorter than the wavelength of visible light; and hydrophilic fine particles each having a particle size in the range of 15% to 50% of the pitch of the projections, the hydrophilic fine particles being held in gaps between the projections while being in contact with the projections, the hydrophilic fine particles held in the gaps between the projections being separated by spaces from bottoms of the gaps, the spaces forming channels on the surface.