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. 07, 2021
Filed:
Feb. 27, 2018
Hamamatsu Photonics K.k., Hamamatsu, JP;
Masahiro Kotani, Hamamatsu, JP;
Hiroki Kawakami, Hamamatsu, JP;
HAMAMATSU PHOTONICS K.K., Hamamatsu, JP;
Abstract
A metal grid includes: a valve metal plate which includes a curved principal surface; an anodic oxide film which is formed on the principal surface of the valve metal plate; and a lattice structure which has an uneven shape periodically formed on the anodic oxide film. Further, a production method for a metal grid includes: a step of bending a principal surface of a valve metal plate including the principal surface; a step of forming an anodic oxide film on the principal surface of the valve metal plate; and a step of forming a lattice structure with a periodic uneven shape on the anodic oxide film by forming an etching mask with a periodic opening on a surface of the anodic oxide film and etching the anodic oxide film through the opening.