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:
May. 31, 2016
Filed:
Mar. 14, 2013
Canon Kabushiki Kaisha, Tokyo, JP;
Kenji Makino, Tokyo, JP;
Tomonari Nakayama, Yokohama, JP;
Keiko Abe, Kawasaki, JP;
Katsuaki Kuge, Yokohama, JP;
Hijiri Hasegawa, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A precursor sol of aluminum oxide includes particles containing a hydrolysate and/or a condensate of an aluminum compound, a solvent, and an organo aluminum compound. When a pulsed-NMR Trelaxation curve of nuclideH of the precursor sol of aluminum oxide includes two components with different Trelaxation times and the component with the longer Trelaxation time has an abundance level of C(%) and the component with the shorter Trelaxation time has an abundance level of C(%), the relative proportion R(%) defined by [{C/(C+C)}×100] is in the range of 23.5% to 50.0%, both inclusive.