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. 15, 2026
Filed:
May. 19, 2021
Ntt, Inc., Tokyo, JP;
Chisato Fukai, Musashino, JP;
Tomohiro Taniguchi, Musashino, JP;
Kazuhide Nakajima, Musashino, JP;
Ayako Iwaki, Musashino, JP;
Takashi Matsui, Musashino, JP;
Nobutomo Hanzawa, Musashino, JP;
Yuto Sagae, Musashino, JP;
Kazutaka Hara, Musashino, JP;
Atsuko Kawakita, Musashino, JP;
NTT, Inc., Tokyo, JP;
Abstract
An ultraviolet optical transmission system, in which light with an ultraviolet band is transmitted along an optical transmission path formed of a quartz-based optical fiber, and includes an optical transmission unit that is switched by a rotation mechanism in which an optical transmission path of one of an optical coupling unit rotates about an axis. The optical coupling unit includes an optical transmission path including a plurality of optical transmission units on the same circumference from a center on an end surface of the optical coupling unit; an optical transmission path in which the optical transmission units are arranged on the same circumference as a circumference on which the plurality of optical transmission units are arranged; two ferrules each containing the two optical transmission paths; and a cylindrical sleeve in which the two ferrules are inserted in a hollow.