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:
Sep. 06, 2016
Filed:
Oct. 04, 2013
Applicant:
National Institute of Advanced Industrial Science and Technology, Tokyo, JP;
Inventors:
Youichi Sakakibara, Ibaraki, JP;
Ryohei Takei, Ibaraki, JP;
Masahiko Mori, Ibaraki, JP;
Toshihiro Kamei, Ibaraki, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/26 (2006.01); G02B 6/12 (2006.01); G02B 6/122 (2006.01);
U.S. Cl.
CPC ...
G02B 6/12002 (2013.01); G02B 6/1228 (2013.01); G02B 2006/12038 (2013.01); G02B 2006/12061 (2013.01); G02B 2006/12073 (2013.01); G02B 2006/12095 (2013.01); G02B 2006/12147 (2013.01);
Abstract
An interlayer light wave coupling device includes a substrate; a first core disposed on the substrate and having a first acute structure; a third core spatially set apart from the first core and having a second acute structure; and a second core disposed between the first core and the third core and having a smaller index of refraction than the first core and the third core. The acute structures of the first core and the third core are disposed so as to have no overlap as viewed from above.