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:
Dec. 04, 2007
Filed:
Mar. 24, 2005
Kazuaki Oya, Ikeda, JP;
Tatsuhiro Nakazawa, Minato-ku, JP;
Shigeo Kittaka, Minato-ku, JP;
Keiji Tsunetomo, Minato-ku, JP;
Junji Nishii, Ikeda, JP;
Kazuaki Oya, Ikeda, JP;
Tatsuhiro Nakazawa, Minato-ku, JP;
Shigeo Kittaka, Minato-ku, JP;
Keiji Tsunetomo, Minato-ku, JP;
Junji Nishii, Ikeda, JP;
Nippon Sheet Glass Company, Limited, Tokyo, JP;
National Institute of Advanced Industrial Science and Technology, Tokyo, JP;
Abstract
A wavelength separator includes a one-dimensional photonic crystal structure formed by providing a plurality of grooves in parallel with one another at uniform intervals in a homogeneous medium, and has an incident end face formed obliquely with respect to a direction in which the grooves extend, and an output end face formed approximately perpendicular to the incident end face.