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:
Apr. 26, 2016
Filed:
Jul. 31, 2009
Yuji Mitsuhashi, Yokohama, JP;
Toshiki Nishizawa, Yokohama, JP;
Hiroshi Tomita, Yokohama, JP;
Yuzo Ishii, Atsugi, JP;
Koichi Hadama, Atsugi, JP;
Yuji Mitsuhashi, Yokohama, JP;
Toshiki Nishizawa, Yokohama, JP;
Hiroshi Tomita, Yokohama, JP;
Yuzo Ishii, Atsugi, JP;
Koichi Hadama, Atsugi, JP;
NTT ELECTRONICS CORPORATION, Kanagawa, JP;
NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo, JP;
Abstract
One side surface of a diffraction grating is securely held by a holder, and further, the holder is securely supported on a substrate by a supporter in such a manner that the diffraction grating held by the holder is not brought into contact with the substrate. In this manner, the diffraction grating is fixed only onto one side surface to the supporter via the holder, and further, the diffraction grating is not brought into contact with the substrate. Therefore, the lower portion of the supporter is displaced by heat generated in the substrate, however, the displacement of the supporter cannot adversely influence directly on the diffraction grating since the holder is interposed between the displaced portion and the diffraction grating.