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. 31, 2015
Filed:
Aug. 25, 2011
Applicants:
Yoshinori Kotani, Yokohama, JP;
Zuyi Zhang, Yokohama, JP;
Kenji Takashima, Tokyo, JP;
Akira Sugiyama, Yokohama, JP;
Inventors:
Yoshinori Kotani, Yokohama, JP;
Zuyi Zhang, Yokohama, JP;
Kenji Takashima, Tokyo, JP;
Akira Sugiyama, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C 11/00 (2006.01); C03C 3/091 (2006.01); C03C 17/00 (2006.01); B32B 3/26 (2006.01); B32B 7/02 (2006.01);
U.S. Cl.
CPC ...
C03C 11/005 (2013.01); C03C 3/091 (2013.01); C03C 17/006 (2013.01); B32B 3/26 (2013.01); B32B 7/02 (2013.01); C03C 2217/425 (2013.01); C03C 2217/732 (2013.01); C03C 2217/91 (2013.01);
Abstract
The present invention provides a porous glass having excellent antireflection performance for visible light. A porous glass includes a porous layer which is mainly composed of silica and which has pores attributed to spinodal phase separation and pores attributed to binodal phase separation.