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.:

US 8896923 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 25, 2014

Filed:

Apr. 27, 2010
Applicant:

Toshiki Okayasu, Kawasaki, JP;

Inventor:

Toshiki Okayasu, Kawasaki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 1/11 (2006.01); B29D 11/00 (2006.01); G02B 5/30 (2006.01);
U.S. Cl.
CPC ...
G02B 1/11 (2013.01); B29D 11/00788 (2013.01); B29D 11/00 (2013.01); G02B 5/3083 (2013.01); Y10S 359/90 (2013.01);
Abstract

A corrugated pattern forming sheet exhibiting excellent performance when being used as optical elements, such as an antireflector and a retardation plate is provided. A corrugated pattern forming sheet of the invention includes a resin layer, and a hard layer provided at least in a portion of an outer surface of the resin layer. The hard layer is made of a metal or a metallic compound. The hard layer has a wavelike corrugated pattern. The average pitch of the corrugated pattern is 1 μm or less, and the average depth of the bottom of the corrugated pattern is 10% or more given an average pitch of 100%.


Find Patent Forward Citations

Okayasu, Toshiki. (2014). Corrugated pattern forming sheet, and methods for manufacturing antireflector, retardation plate, original process sheet plate, and optical element (U.S. Patent No. 8896923). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8896923

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