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. 05, 2023
Filed:
Feb. 04, 2020
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Eiichi Kuramochi, Tokyo, JP;
Shota Kita, Tokyo, JP;
Hideaki Taniyama, Tokyo, JP;
Akihiko Shinya, Tokyo, JP;
Masaya Notomi, Tokyo, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
First lattice elements shift away from a light confinement portion in a second direction. Second lattice elements shift away from the light confinement portion in the second direction. Third lattice elements shift away from the light confinement portion in the second direction. A shift amount of the first lattice elements is 0.05 to 0.5 times as large as a crystal period. A shift amount of the second lattice elements is 0.02 to 0.5 times as large as the crystal period. A shift amount of the third lattice elements is 0.01 to 0.5 times as large as the crystal period.