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. 12, 2023
Filed:
Sep. 19, 2022
Applicant:
Hoya Corporation, Tokyo, JP;
Inventor:
Masao Takano, Akishima, JP;
Assignee:
HOYA CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 37/10 (2006.01); B24B 9/10 (2006.01); B32B 7/022 (2019.01); G11B 5/73 (2006.01); B32B 27/32 (2006.01); B32B 27/36 (2006.01); B32B 27/40 (2006.01); B32B 37/14 (2006.01); B32B 37/18 (2006.01); B32B 38/00 (2006.01); C03C 19/00 (2006.01); G11B 5/84 (2006.01);
U.S. Cl.
CPC ...
B24B 9/10 (2013.01); B32B 7/022 (2019.01); B32B 27/32 (2013.01); B32B 27/36 (2013.01); B32B 27/40 (2013.01); B32B 37/10 (2013.01); B32B 37/144 (2013.01); B32B 37/18 (2013.01); B32B 38/105 (2013.01); C03C 19/00 (2013.01); G11B 5/73921 (2019.05); G11B 5/8404 (2013.01); B32B 2250/42 (2013.01); B32B 2307/7265 (2013.01); B32B 2307/734 (2013.01); B32B 2315/08 (2013.01); B32B 2323/10 (2013.01); B32B 2367/00 (2013.01); B32B 2375/00 (2013.01); B32B 2429/02 (2013.01);
Abstract
A sheet-like spacer to be used when a laminate of a plurality of substrates is formed for the purpose of processing end faces of the substrates is provided between the adjacent substrates in the laminate to keep the adjacent substrates apart from each other. An area of the spacer is smaller than that of the substrates. A contact angle of a surface of the spacer with respect to pure water is 50° or less.