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:
Mar. 22, 2016
Filed:
Mar. 28, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Mai Murakami, Kashiwa, JP;
Yuka Ishiduka, Suntou-gun, JP;
Wataru Kitamura, Matsudo, JP;
Masaki Nonaka, Toride, JP;
Ryoichi Tokimitsu, Kashiwa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A composition that contains a compound represented by the formula (1) is dissolved in an organic compound, and the composition is purified by using a basic adsorbent that contains at least 15% by mass magnesium and has a volume average particle diameter of 10 μm to 500 μm, both inclusive. An undercoat-layer-forming coating liquid is prepared by removing the basic adsorbent and dispersing metal oxide particles in the obtained solution containing the purified form of the composition. An undercoat layer is formed by forming a coat of the undercoat-layer-forming coating liquid and drying the coat.